dual processor recognition

[Scythe]

Here is the relevant hardware:
Tyan Tiger 133 (Dual slot 1) w/ 2x P-III@700 coppermines.
2 fans attached, a big one and a small one from my old P-II (I ordered 2 large ones, but one of them couldn't fit between the two slot 1s.. I hate slot 1!!!).

Anyhow, here is the problem:
Installation of W2k went fine, booted up normally. However, when I hit ctrl+alt+del to view my newly acquired twin windows of processor glory in the task manager, I see only one. Upon further inspection (in the device manager), the computer had been deemed an ACPI Uniprocessor PC. When I tried to change the configuration to ACPI Multiproc, the system freezes after boot. Also to note - if I run the computer freshly after being off for a while, it detects 2 CPUs in the BIOS messages. However, if I reboot after running it for a while, only 1 is detected.
Now, this sort of sounds like a cooling problem. However, the processor is cool to the touch, and the fan seems to be working properly. I've checked all my BIOS options, and there aren't any odd settings I've missed (at least, I hope not).

Opinions, folks?

[Ghost_Hacker]

Here's some info that might help.


SUMMARY
=======

Windows 2000 provides support for single or multiple Central Processing Units
(CPU). However, if you originally installed Windows 2000 on a computer with a
single CPU, the HAL on your computer must be updated for it to be able to
recognize and use multiple CPUs.

MORE INFORMATION
================

In Microsoft Windows NT 4.0, the Uptomp.exe tool can be used to add support for
multiple CPUs. The Uptomp.exe tool is no longer used in Windows 2000, instead,
you can use Device Manager to make these changes. Note that before changing the
computer type, contact your computer manufacturer to determine if there is a
vendor-specific HAL you should use instead of the standard ones included in
Windows 2000. To install support for multiple CPUs:

1. Click Start, point to Settings, point to Control Panel, and then click
System.

2. Click the Hardware tab, and then click Device Manager.

3. Double-click the Computer branch to expand it. Note the type of support you
currently have.

4. Double-click the computer type listed under the Computer branch, click the
Drivers tab, click Update Driver, and then click Next.

5. Click "Display a list of known drivers for this device", and then click "Show
all hardware of this device class".

6. Click the appropriate computer type (one that matches your current type,
except for multiple CPUs), click Next, and then click Finish.

The following table lists and describes each HAL.

HAL Description
------------------------------------------------------------------------
ACPI MultiProc Use for Multiprocessor ACPI systems.
ACPI UniProc Use for ACPI Multiprocessor board but with a single
processor installed.
Advanced
Configuration
Power Interface PC Use for Single processor motherboard with single
processor ACPI system.
Compaq Systempro Use for Compaq Systempro computers.
MPS Uniprocessor PC Use on non ACPI systems dual processor motherboard
with a single processor installed.
MPS Multiproc PC Non ACPI systems with a dual processor running
Standard PC Any Standard PC, non-ACPI, or nonMPS. Could be a 386,
486, Pentium, or Pentium II / III.
Standard PC
with C-Step i486

NOTE: You can use this procedure only to upgrade from a single-processor HAL to a
multiple-processor HAL. If you use this procedure to change from a standard HAL
to an ACPI HAL (for example, after a BIOS upgrade) or vice-versa, unexpected
results may occur, including an inability to boot the computer.

For information about troubleshooting Windows 2000 HAL issues, please click the
article number below to view the article in the Microsoft Knowledge Base:

Q237556 Troubleshooting Windows 2000 Hardware Abstraction Layer Issues


Good Luck http://www.PCGuide.com/ubb/smile.gif

------------------
Comment heard from a Klingon programmer.

"Debugging? Klingons do not debug. Our software does not coddle the weak"

[Randy_tx]

WOW Hacker http://www.PCGuide.com/ubb/biggrin.gif pretty fine info there!

------------------
"As hard as a rock & dumb as a brick"...Windows CEMeNT

[Paleo Pete]

He comes up with some doozies...and that one is right up there with the best of 'em...

------------------
So many idiots, and only six bullets...
Note: Please post your questions on the forums, not in my email.

Computer Information Links (http://www.geocities.com/paleopete/)

[Scythe]

Many thanks, Ghost_Hacker, but I've actually already tried switching HALs, forcing it to ACPI Multi to no avail.
You think this is a cooling issue? Either that, or I have a bad mobo, which I really really hope isn't the case here.