CPU BIOS Update Code Mismatch

[Sean]

Hello, I have seen previous posting on this problem, but I'm wondering
if anyone has some new advice. I have installed a Pentium III 667 MHz
processor (from an IBM 300PL-6584) into an IBM Aptiva 545 (2171-545)
and get the error message "CPU BIOS Update Code Mismatch) after
booting. I tried getting a BIOS update floppy, but the computer will
not even access the floppy before it gives this message nor will it
allow me to enter the BIOS menu. The IBM 300PL accepted the Pentium
III 450MHz processor (from the Aptiva 545) once the BIOS update had
been completed. I contacted IBM and they told me that there shouldn't
be any compatibility issues, so I am stuck as what to do. I've found
forums on the net about that message, but only dealing with Acer PCs.
I've gotten the newest BIOS update (6/30/2000) for the Aptiva and
still no results. I also have put the old processor back and
re-updated the BIOS, which has not helped yet. If anyone has any
ideas as how to fix this issue, PLEASE let me know.
~Sean

[Jack D. Russell, Sr.]

======================================================================
* Reply by Jack D. Russell, Sr. <jackru$$***@notmail.com>
* Newsgroup: alt.comp.hardware.aptiva
* Reply to: All; "Sean" <***@comcast.net>
* Date: 19 Jul 2004 09:37:09 -0700
* Subj: CPU BIOS Update Code Mismatch
======================================================================

S> Hello, I have seen previous posting on this problem, but I'm
S> wondering if anyone has some new advice. I have installed a
S> Pentium III 667 MHz processor (from an IBM 300PL-6584) into an IBM
S> Aptiva 545 (2171-545) and get the error message "CPU BIOS Update
S> Code Mismatch) after booting. I tried getting a BIOS update
S> floppy, but the computer will not even access the floppy before it
S> gives this message nor will it allow me to enter the BIOS menu.
S> The IBM 300PL accepted the Pentium
S> III 450MHz processor (from the Aptiva 545) once the BIOS update
S> had been completed. I contacted IBM and they told me that there
S> shouldn't be any compatibility issues, so I am stuck as what to
S> do. I've found forums on the net about that message, but only
S> dealing with Acer PCs. I've gotten the newest BIOS update
S> (6/30/2000) for the Aptiva and still no results. I also have put
S> the old processor back and re-updated the BIOS, which has not
S> helped yet. If anyone has any ideas as how to fix this issue,
S> PLEASE let me know.
S> ~Sean

You are aware that most IBM Aptivas actually use Acer motherboards
with a rewritten by IBM Acer BIOS? There were posts on the old
Unofficial Aptiva Message Board (Thanks, Don) of Aptiva users that had
successfully flashed their Aptivas with a compatible Acer BIOS.
Perhaps exploring that route would be helpful for you. The last time I
looked however, details for such old machines were woefully lacking.
Good luck.

[Tanya]

Post by Sean
booting. I tried getting a BIOS update floppy, but the computer will
not even access the floppy before it gives this message nor will it
allow me to enter the BIOS menu. The IBM 300PL accepted the Pentium

Just wonder whether the boot order is A (floppy first?)
Maybe use original cpu to set boot order to a when you are in the bios.
also are you using BIOS overlay? (ezBIOS, etc.)

[Sean]

Post by Tanya
Just wonder whether the boot order is A (floppy first?)
Maybe use original cpu to set boot order to a when you are in the bios.
also are you using BIOS overlay? (ezBIOS, etc.)

I have the boot order as floppy, CD-ROM, & then HD. It never gets to
the booting stage, it never gets past BIOS which makes me think it is
a jumper setting problem. And I am not using a BIOS overlay, would
that help in this situation?

[MinnesotaMike]

Sean,

If I understand correctly, you can get into your BIOS? If so, have you
checked everything possible for anything that looks out of place? Wrong CPU
speed or something similar. If you can't get into your BIOS, I'm not sure
what to tell you. If you can find out who makes the motherboard, try their
customer support. I have also heard that Acer made a lot of the boards for
IBM. You could start there. Looking at their site, they have a way to
change the CPU code, but I would hate to give you that and have it be wrong.
The BIOS overlay software won't help in this case. Maybe a controller
card with it's own BIOS would help though. Lots use them for hard drive
upgrades when they exceed the manufactures limits, but I'm not sure how (or
if) it would affect the CPU. Maybe somebody will offer some light on that.
Best of luck.

Mike

Post by Sean

Post by Tanya
Just wonder whether the boot order is A (floppy first?)
Maybe use original cpu to set boot order to a when you are in the bios.
also are you using BIOS overlay? (ezBIOS, etc.)

I have the boot order as floppy, CD-ROM, & then HD. It never gets to
the booting stage, it never gets past BIOS which makes me think it is
a jumper setting problem. And I am not using a BIOS overlay, would
that help in this situation?

[Tanya]

Post by Sean

Post by Tanya
Just wonder whether the boot order is A (floppy first?)
Maybe use original cpu to set boot order to a when you are in the bios.
also are you using BIOS overlay? (ezBIOS, etc.)

I have the boot order as floppy, CD-ROM, & then HD. It never gets to
the booting stage, it never gets past BIOS which makes me think it is
a jumper setting problem. And I am not using a BIOS overlay, would
that help in this situation?

I had to use a BIOS overlay for windows to recognize 30 GBS
IMHO it messes things up -- I just asked in case you had 1 and it was *a*
problem...

I guess you don't have a diagram of the board do you?
I would suggest posting on motherboards.org

http://www.motherboards.org/forums/viewforum.php?f=2
you have to register (they don't send spam) however there's a whole forum
dedicated to id'ing moBoards, etc.
and they may be able to help

here is the home link
http://www.motherboards.org/index.html
sincerely
Tanya
PS I am NOT $'ancially associated just post there for help sometimes:)

[Sean]

Post by Tanya
I guess you don't have a diagram of the board do you?
I would suggest posting on motherboards.org

I have found the system board diagram on the IBM website, but it
doesn't really tell me that much. I have the 2171 motherboard, maybe
it might make sense to you. Here it is:
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-48QKBD&velxr-layout=print#APPLYCOUNTRY

[Tanya]

Post by Sean

Post by Tanya
I guess you don't have a diagram of the board do you?
I would suggest posting on motherboards.org

I have found the system board diagram on the IBM website, but it
doesn't really tell me that much. I have the 2171 motherboard, maybe
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-48QKBD&velxr-layout=print#APPLYCOUNTRY

I'd assume that it would involve SW1 with the error you are getting.
(I could be wrong) however, if you post on motherboards.org with the link I'd guess that someone can
advise............

I would write down the original BIOS settings (with the original CPU) in case something goes wrong
(or print screen it)

do you know what the sw1 positions are right now?

here's the link for the 2171 hardware maintenance manual
http://www-3.ibm.com/pc/support/site.wss/MIGR-48HUYM.html
these are technical but helpful
sincerely
Tanya

[Sean]

Post by Tanya
I'd assume that it would involve SW1 with the error you are getting.
(I could be wrong) however, if you post on motherboards.org with the link I'd guess that someone can advise............
I would write down the original BIOS settings (with the original CPU) in case something goes wrong (or print screen it)
do you know what the sw1 positions are right now?
here's the link for the 2171 hardware maintenance manual
http://www-3.ibm.com/pc/support/site.wss/MIGR-48HUYM.html
these are technical but helpful

I've looked at the SW1 settings and they were set for the 4.5 clock
ratio (on,off,on,off), so I adjusted them to 7, then 6.5 but had no
results. I fear the problem now is that before I even changed the
clock setting...it stopped giving me the error code that I initially
posted about. Now it will go into BIOS, do a ram check and lock up.
Even after adjusting the switches...it won't go past that BIOS. Only
way to get it to get into / past BIOS is to put the old processor in.
Any ideas why it won't even give me the error message anymore?

The motherboards forum is only for identifying motherboards, doesn't
sound like they'd allow me to post there to get help.

~Sean

[Tanya]

Sean wrote:

[...below...]

Post by Sean

Post by Tanya
I'd assume that it would involve SW1 with the error you are getting.
(I could be wrong) however, if you post on motherboards.org with the link I'd guess that someone can advise............
I would write down the original BIOS settings (with the original CPU) in case something goes wrong (or print screen it)

I would do this first

Post by Sean

Post by Tanya
do you know what the sw1 positions are right now?
here's the link for the 2171 hardware maintenance manual
http://www-3.ibm.com/pc/support/site.wss/MIGR-48HUYM.html
these are technical but helpful

I've looked at the SW1 settings and they were set for the 4.5 clock
ratio (on,off,on,off), so I adjusted them to 7, then 6.5 but had no
results. I fear the problem now is that before I even changed the
clock setting...it stopped giving me the error code that I initially
posted about.

So iow the error (mismatch) had already stopped before changing clock speeds?

Post by Sean
Now it will go into BIOS, do a ram check and lock up.

question: do you get a beep? is it actually in the BIOS counting RAM or is it on the preScreen (which on mine states to hit
F1 (?) to enter?)
If it is counting on a screen with directions on how to enter the BIOS then hit the key (eg. f1) while it is counting.
Then, go into the BIOS and see how much RAM it sees, see what the cpu is whether it's the 450 still or the 667 mhz etc.

Post by Sean
Even after adjusting the switches...it won't go past that BIOS. Only
way to get it to get into / past BIOS is to put the old processor in.
Any ideas why it won't even give me the error message anymore?

Possibly the CMOS needs clearing (AFTER writing down the values with the 450mhz installed) remove the Lithium battery for 4+
hours -- this clears everything
I would NOT do this right now but _possibly_ that's why.

Post by Sean
The motherboards forum is only for identifying motherboards, doesn't
sound like they'd allow me to post there to get help.

fwiw, there is a tech support forum on the site.

Post by Sean
~Sean

A couple of things:
1. how much ram is in the 2171-545? the 300 has 128 and the 545 has 96 (original). perhaps you could try to swap chips (or
add compatible ram to the 545 to = 128 MB.)
2. when you are using the 450 pIII does it go into windows (?98?) i.e. is the video, sound etc. ok? if so anything under
device manager?
3. I have no idea about the mBoards for either -- bus etc.. do the manuals say anything?
4. Since it stopped the error have you tried a boot disk?
5. Try creating a kBoard error when you start the 545 (with the 667 mhz cpu) hold down a key -- and see if you get an error
which *should* allow access to the BIOS.
sincerely
Tanya

[Sean]

Post by Tanya
So iow the error (mismatch) had already stopped before changing clock

speeds?
Yes, don't know why though

Post by Tanya
question: do you get a beep?

Yes, the normal one that I get when it verifies RAM (pretty sure...I
will check tonight to ensure the correctness of my answer

Post by Tanya
is it actually in the BIOS counting RAM or is it on the preScreen

(which on mine >states to hit F1 (?) to enter?)
The BIOS counts the RAM (correctly), then locks...can't get into
BIOS or anything

Post by Tanya
Then, go into the BIOS and see how much RAM it sees, see what the cpu

is whether >it's the 450 still or the 667 mhz etc.
Can't get into the BIOS menu

Post by Tanya
Possibly the CMOS needs clearing (AFTER writing down the values with

the 450mhz >installed) remove the Lithium battery for 4+ hours -- this
clears everything

Post by Tanya
I would NOT do this right now but _possibly_ that's why.

Why do you say that I shouldn't do this right now?

Post by Tanya
1. how much ram is in the 2171-545? the 300 has 128 and the 545 has

96 >original). perhaps you could try to swap chips (oradd compatible
ram to the 545 >to = 128 MB.)
The 2171-545 that I have has 96MB original...but now has 256MB

Post by Tanya
2. when you are using the 450 pIII does it go into windows (?98?)

i.e. is the >video, sound etc. ok? if so anything under device
manager?
It boots like normal to Windows XP Pro and all is fine (video,
sound, etc). What do you mean by anything under device manager?

Post by Tanya
3. I have no idea about the mBoards for either -- bus etc.. do the

manuals say >anything?
Not that I know of or could find; nothing about upgrading the
processor other than physical removal of the processor and replacement

Post by Tanya
4. Since it stopped the error have you tried a boot disk?

No, I don't see how a boot disk would help since if I have the
faster processor in, it won't even get so that I can enter BIOS

Post by Tanya
5. Try creating a kBoard error when you start the 545 (with the 667

mhz cpu) >hold down a key -- and see if you get an error which
*should* allow access to >the BIOS.
I'll give that a shot later today, I don't think it'll work
though...worth a shot

Thanks for your continuing help,
~Sean

[Sean]

Post by Tanya
So iow the error (mismatch) had already stopped before changing clock

speeds?
Yes, don't know why though

Post by Tanya
question: do you get a beep?

Yes, the normal one that I get when it verifies RAM (pretty sure...I
will check tonight to ensure the correctness of my answer

Post by Tanya
is it actually in the BIOS counting RAM or is it on the preScreen

(which on mine >states to hit F1 (?) to enter?)
The BIOS counts the RAM (correctly), then locks...can't get into
BIOS or anything

Post by Tanya
Then, go into the BIOS and see how much RAM it sees, see what the cpu

is whether >it's the 450 still or the 667 mhz etc.
Can't get into the BIOS menu

Post by Tanya
Possibly the CMOS needs clearing (AFTER writing down the values with

the 450mhz >installed) remove the Lithium battery for 4+ hours -- this
clears everything

Post by Tanya
I would NOT do this right now but _possibly_ that's why.

Why do you say that I shouldn't do this right now?

Post by Tanya
1. how much ram is in the 2171-545? the 300 has 128 and the 545 has

96 >original). perhaps you could try to swap chips (oradd compatible
ram to the 545 >to = 128 MB.)
The 2171-545 that I have has 96MB original...but now has 256MB

Post by Tanya
2. when you are using the 450 pIII does it go into windows (?98?)

i.e. is the >video, sound etc. ok? if so anything under device
manager?
It boots like normal to Windows XP Pro and all is fine (video,
sound, etc). What do you mean by anything under device manager?

Post by Tanya
3. I have no idea about the mBoards for either -- bus etc.. do the

manuals say >anything?
Not that I know of or could find; nothing about upgrading the
processor other than physical removal of the processor and replacement

Post by Tanya
4. Since it stopped the error have you tried a boot disk?

No, I don't see how a boot disk would help since if I have the
faster processor in, it won't even get so that I can enter BIOS

Post by Tanya
5. Try creating a kBoard error when you start the 545 (with the 667

mhz cpu) >hold down a key -- and see if you get an error which
*should* allow access to >the BIOS.
I'll give that a shot later today, I don't think it'll work
though...worth a shot

Thanks for your continuing help,
~Sean

[Tanya]

Post by Tanya
1. how much ram is in the 2171-545? the 300 has 128 and the 545 has

96 >original). perhaps you could try to swap chips (or add compatible
ram to the 545 to = 128 MB.)
The 2171-545 that I have has 96MB original...but now has 256MB
Does now mean before you started upgrading the processor? or right now?

Post by Tanya
question: do you get a beep?

Yes, the normal one that I get when it verifies RAM (pretty sure...I
will check tonight to ensure the correctness of my answer

Post by Tanya
is it actually in the BIOS counting RAM or is it on the preScreen

(which on mine states to hit F1 (?) to enter?)
The BIOS counts the RAM (correctly), then locks...can't get into
BIOS or anything
(so it's on the preBIOS screen I'd guess)

So what you should do is BEFORE the beep hit whatever key it says to enter
the BIOS (keep tapping it) (mine has f1 to enter setup utility)
I'm pretty certain you will get into the BIOS .
or if you have the option to hit escape to bypass memory test / check, hit
escape


post back and / or I'll answer the rest after
sincerely
Tanya
btw 1 beep is great... means the basic h/w is ok (btw who makes the 2171
BIOS ? ibm?)

<snippedForNow>

[Tanya]

Sean wrote:
[...below...]

Post by Sean

Post by Tanya
question: do you get a beep?

Yes, the normal one that I get when it verifies RAM (pretty sure...I
will check tonight to ensure the correctness of my answer

?

Post by Sean

Post by Tanya
Possibly the CMOS needs clearing (AFTER writing down the values with

the 450mhz installed) remove the Lithium battery for 4+ hours -- this
clears everything

Post by Tanya
I would NOT do this right now but _possibly_ that's why.

Why do you say that I shouldn't do this right now?

I'd meant after trying for a kBoard error and or hitting the key initially
that gets the 2171 into the BIOS and / or hitting escape to bypass memory
count (if that's an option on the 2171 *preBIOS* screen)

Post by Sean

Post by Tanya
2. when you are using the 450 pIII does it go into windows (?98?)

i.e. is the >video, sound etc. ok? if so anything under device
manager?
It boots like normal to Windows XP Pro and all is fine (video,
sound, etc). What do you mean by anything under device manager?

any yellow '!'s

Post by Sean

Post by Tanya
3. I have no idea about the mBoards for either -- bus etc.. do the

manuals say >anything?
Not that I know of or could find; nothing about upgrading the
processor other than physical removal of the processor and replacement

see the link for the 2171 right below

Post by Sean

Post by Tanya
5. Try creating a kBoard error when you start the 545 (with the 667

mhz cpu) >hold down a key -- and see if you get an error which
*should* allow access to >the BIOS.
I'll give that a shot later today, I don't think it'll work
though...worth a shot
Thanks for your continuing help,
~Sean

this will help
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-48UPZ9

... I'd suggest that if the above *suggestions* do not help get the
hardware maintenance manual (pdf)
(here's the link for the 2171 hardware maintenance manual
http://www-3.ibm.com/pc/support/site.wss/MIGR-48HUYM.html)
this whole page refers to the manual and I'm sure that it discusses cpu
upGrading. Plus if it's like mine it'll have better info (diagrams) on
setting jumpers etc.

the other links are less useful
reference manual for the 2171
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-48HVA2

technical info manual for the 300PL
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-4F3RG3

sincerely
Tanya

[Sean]

Post by Tanya
question: do you get a beep?
Yes, the normal one that I get when it verifies RAM (pretty sure...I
will check tonight to ensure the correctness of my answer

Sorry, I was busier than I thought with a wedding I was a part of.
I have tested it and found that there are no beeps at all. It doesn't
beep even when it boots up with the original processor in it and it
boots fine

Post by Tanya
Possibly the CMOS needs clearing (AFTER writing down the values with
the 450mhz installed) remove the Lithium battery for 4+ hours -- this
clears everything I would NOT do this right now but _possibly_ that's

why.

Post by Tanya
I'd meant after trying for a kBoard error and or hitting the key initially
that gets the 2171 into the BIOS and / or hitting escape to bypass memory
count (if that's an option on the 2171 *preBIOS* screen)

I have not tried clearing the BIOS yet, but I have tried generating
a keyboard error with no success. It locks up almost immediately

Post by Tanya
2. when you are using the 450 pIII does it go into windows (?98?)
i.e. is the video, sound etc. ok? if so anything under device
manager?

I have checked it out and found it not to have any yellow marked
devices when it boots with the original processor (PIII 450) in device
manager

Post by Tanya
5. Try creating a kBoard error when you start the 545 (with the 667
mhz cpu) >hold down a key -- and see if you get an error which
*should* allow access to the BIOS.

I have attempted to create the keyboard error with no success

Post by Tanya
this will help
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-48UPZ9

The websites are helpful but they still don't cover the error that I
get

I will try removing the battery tomorrow and testing that no later
than Thursday. If you have any other suggestions, please let me know.
~Sean

[Tanya]

Post by Sean

Post by Tanya
question: do you get a beep?
Yes, the normal one that I get when it verifies RAM (pretty sure...I
will check tonight to ensure the correctness of my answer

Sorry, I was busier than I thought with a wedding I was a part of.
I have tested it and found that there are no beeps at all. It doesn't
beep even when it boots up with the original processor in it and it
boots fine

Post by Tanya
Possibly the CMOS needs clearing (AFTER writing down the values with
the 450mhz installed) remove the Lithium battery for 4+ hours -- this
clears everything I would NOT do this right now but _possibly_ that's

why.

Post by Tanya
I'd meant after trying for a kBoard error and or hitting the key initially
that gets the 2171 into the BIOS and / or hitting escape to bypass memory
count (if that's an option on the 2171 *preBIOS* screen)

I have not tried clearing the BIOS yet, but I have tried generating
a keyboard error with no success. It locks up almost immediately

Post by Tanya
2. when you are using the 450 pIII does it go into windows (?98?)
i.e. is the video, sound etc. ok? if so anything under device
manager?

I have checked it out and found it not to have any yellow marked
devices when it boots with the original processor (PIII 450) in device
manager

Post by Tanya
5. Try creating a kBoard error when you start the 545 (with the 667
mhz cpu) >hold down a key -- and see if you get an error which
*should* allow access to the BIOS.

I have attempted to create the keyboard error with no success

Post by Tanya
this will help
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-48UPZ9

The websites are helpful but they still don't cover the error that I
get
I will try removing the battery tomorrow and testing that no later
than Thursday. If you have any other suggestions, please let me know.
~Sean

Hi Sean,
If clearing the CMOS has no effect, what I would do is strip down the 2171 to
only have the 667 mhz cpu, it's video card, and its memory. (keep the monitor
attached.)
If it does not boot or it freezes, I'd try the memory from the 300 (is it
compatible? -- hopefully) and if it still does not boot, try switching
videocards. (hopefully they are NOT onBoard)
remove any other cards and unplug the hd and the floppy drive (remove the ribbon
cables but write down the orientation)
Do both machines have the same psu (watts?)
I'd even try a new lithium battery...

Point being that if the 300 boots with either cpu, might be a component on the
2171 that's stopping it.
I cannot think of anything else right now... post back re: removing the CMOS
battery.

sincerely,
Tanya

[Sean]

Post by Tanya
Hi Sean,
If clearing the CMOS has no effect, what I would do is strip down the 2171 to
only have the 667 mhz cpu, it's video card, and its memory. (keep the monitor
attached.)
If it does not boot or it freezes, I'd try the memory from the 300 (is it
compatible? -- hopefully) and if it still does not boot, try switching
videocards. (hopefully they are NOT onBoard)
remove any other cards and unplug the hd and the floppy drive (remove the ribbon
cables but write down the orientation)
Do both machines have the same psu (watts?)
I'd even try a new lithium battery...
Point being that if the 300 boots with either cpu, might be a component on the
2171 that's stopping it.
I cannot think of anything else right now... post back re: removing the CMOS
battery.
sincerely,
Tanya

Well I removed the CMOS battery for over 24hours actually b/c I got a
lil busier than expected. I put the 667MHz processor in there and
still had the same results. My next step, as you outlined, is to
strip the PC of everything but memory and processor. The RAM from the
2 PCs isn't compatible (DIMM vs. RIMM), both PCs have built in sound,
the video card from each other are not physically compatibale either.
The video cards are not built in though. How do I check the watts on
the processors?

~Sean

[Tanya]

Hi Sean,

Post by Sean

Post by Tanya
Hi Sean,
If clearing the CMOS has no effect, what I would do is strip down the 2171 to
only have the 667 mhz cpu, it's video card, and its memory. (keep the monitor
attached.)
If it does not boot or it freezes, I'd try the memory from the 300 (is it
compatible? -- hopefully) and if it still does not boot, try switching
videocards. (hopefully they are NOT onBoard)
remove any other cards and unplug the hd and the floppy drive (remove the ribbon
cables but write down the orientation)
Do both machines have the same psu (watts?)
I'd even try a new lithium battery...
Point being that if the 300 boots with either cpu, might be a component on the
2171 that's stopping it.
I cannot think of anything else right now... post back re: removing the CMOS
battery.
sincerely,
Tanya

Well I removed the CMOS battery for over 24hours actually b/c I got a
lil busier than expected. I put the 667MHz processor in there and
still had the same results. My next step, as you outlined, is to
strip the PC of everything but memory and processor. The RAM from the
2 PCs isn't compatible (DIMM vs. RIMM),

how much RAM is on the 2171? and on the 300PL?

Post by Sean
both PCs have built in sound,
the video card from each other are not physically compatibale either.
The video cards are not built in though. How do I check the watts on
the processors?

I'd meant the # watts on the power supply.
On the CPU I can look it up if you have a voltmeter
What I'd really like to know is the motherboard bus speeds on both.
Also there are some links below that *sort of* compare the 450 and 667
I really wonder about the RAM also and does your user's manual say whether the 2171 is
upgradeable to 667 MHz? Or was this only IBM's *opinion*?
I'll look for a site I saw with memory compatibilities btwn the 2...
I'll post back...

Post by Sean
~Sean

Voltage Requirements for Pentium III Processors
http://www.dewassoc.com/systems/component/intel/piiivoltreq.htm

Intel Pentium III 667MHz/133 Slot 1 CPU
http://www.compgeeks.com/details.asp?invtid=PIII667S1-2

Intel Pentium III Processor
http://www.hardwarepage.nl/pentium-iii.html

[Sean]

Post by Tanya
I'd meant the # watts on the power supply.
On the CPU I can look it up if you have a voltmeter
What I'd really like to know is the motherboard bus speeds on both.
Also there are some links below that *sort of* compare the 450 and 667
I really wonder about the RAM also and does your user's manual say whether the 2171 is
upgradeable to 667 MHz? Or was this only IBM's *opinion*?
I'll look for a site I saw with memory compatibilities btwn the 2...
I'll post back...

~Sean

Voltage Requirements for Pentium III Processors
http://www.dewassoc.com/systems/component/intel/piiivoltreq.htm
Intel Pentium III 667MHz/133 Slot 1 CPU
http://www.compgeeks.com/details.asp?invtid=PIII667S1-2
Intel Pentium III Processor
http://www.hardwarepage.nl/pentium-iii.html

I don't care if you post the message to the motherboards
website...anything that might help this problem get solved quicker
would be great, so please do! Also I can't email you directly...it
always returns as an error. I don't know what the motherboard speed
is on the P300, but I'm pretty sure it's 100MHz on the 2171. The
processor is the same type and IBM's official position is that they
don't have one on updgrading it. I'll post back later after a lil
research on the P300.

~Sean

[Tanya]

Hi,
[...below...]
<snip>

Post by Sean

Post by Tanya

~Sean

Voltage Requirements for Pentium III Processors
http://www.dewassoc.com/systems/component/intel/piiivoltreq.htm
Intel Pentium III 667MHz/133 Slot 1 CPU
http://www.compgeeks.com/details.asp?invtid=PIII667S1-2
Intel Pentium III Processor
http://www.hardwarepage.nl/pentium-iii.html

I don't care if you post the message to the motherboards
website...anything that might help this problem get solved quicker
would be great, so please do! Also I can't email you directly...it
always returns as an error.

did you remove the capitals? (Just wonder whether ATT is bouncing on its own) better to post
here though since someone'll jump in if there's bad advice... etc.

Post by Sean
I don't know what the motherboard speed
is on the P300, but I'm pretty sure it's 100MHz on the 2171. The
processor is the same type and IBM's official position is that they
don't have one on updgrading it. I'll post back later after a lil
research on the P300.
~Sean

here are some things:
1. the 2171 has an acer board (which I cannot find on their site so will ask re: that board)

V66M-2Z w/ZX 100, AGP slot
links for that board -- little use

http://azaka.nutus.com.ar/hardware.php?id=45

http://cgi.es.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3468832893&category=1244
Here is a link that explains the memory part (i.e. what the max
mem the 2171 supports:)

Accessories - Memory - Aptiva 2170, 2171, 2172, 2174, 2177
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-48XMCW

128MB 100MHz Non-Parity SDRAM DIMM - Overview
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=VLAR-463SVT

I don't see 300PL - 6584 there -- would you know whether its board is faster than the 2
mentioned?

although as per usual their site lacks useful info, this link seems to
indicate that the
max cpu would be what you have but still no hint of what it could
take...

Service parts listing - Aptiva 2171
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-48RPPV


Memory options - IBM PC300PL (type 6584, 6594, 6595)

http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-4ECRRF

Part diagram and listing - IBM PC300PL (type 6584, 6595)

http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-4ESRRF

01K2119 -- the 300PL IBM board (not acer)

IMHO I'm really not sure that the 2171 will take a 677 MHz cpu (due to the memory, and
several things but here are some things to check:)

1. Whether the acer board will take the 667 mhz: power_wise, bus etc. (I'll post the 2 on
motherboard.org and see whether they can tell the chipset, etc (i cannot find it ANYWHERE))
here is a link on features of the 667
http://www.compgeeks.com/details.asp?invtid=PIII667S1-2
and I don't know what yours is... can you post them?

2. Memory requirements:
this should not be such a problem to find however i'll post this also

3. if you can find the following for the 2171:
a) board model (I guess it's the V66M-2Z w/ZX 100, AGP slot) unless something else is
written in the manual)
b) I assume the cpu socket pin count is the same for both?
c) NB Max speed supported by the motherboard (The info states that if there is > 20%
difference btwn the hoped for speed and the max supported speed, cannot use that board
d) desired speed
e) memory type
f) mem manufacturer
g) graphics card model
h) graphics / video card manufacturer
i) sound card model and maker.
(it says here that you might need to upDate sound and video drivers. Have you done that?)

Lots of links -- probably 1 or 2 are helpful maybe
I'll post back.......
sincerely
Tanya

[Tanya]

<SNIP>

apparently you canNOT use the 667 in the 2171 b/c of the different FSB - it is 133 mhz in the
667 and 100 mhz for the 450
(the hardware maintenance manual for the 2171 states (I think) either a 450 or a 500 mhz with
100 mhz fsb)
however someone mentioned to try running the 667 with a 100 fsb and using the multiplier of 6.5x
or 7x.

[Tanya]

<SNIP>

apparently you canNOT use the 667 in the 2171 b/c of the different FSB
- it is 133 mhz in the
667 and 100 mhz for the 450
(the hardware maintenance manual for the 2171 states (I think) either a
450 or a 500 mhz with
100 mhz fsb)
however someone mentioned to try running the 667 with a 100 fsb and
using the multiplier of 6.5x
or 7x.

[Tanya]

another post........ :)

here's what someone mentioned on mb.org

"Intel ZX chipset is limited to 100MHz FSB processors only, the PIII 667 is a 133MHz FSB
processor.

Multipliers cannot be changed on Intel CPU's as they are factory locked.

Having a 5x multiplier the PIII 667 will only operate at 500MHz when fitted to your V66M IBM
board (5 x 100 = 500MHz) if you can get it to work at all.

The CPU code mismatch error you are getting is an indication the the bios does not recognise
the CPU, if you are already using the latest bios available for the board then there is
nothing that can be done to correct this."


(I do not think the SW1 (switch 1, 2 3 4) bus-clock ratios are related to the cpu fsb (I
think they have to do with overClocking))