Processors
OverDriveŽ Processors
BIOS troubleshooting

Enhanced System Configuration Data (ESCD) Issues

Symptoms:

  • PCI card is installed and the system hangs.
  • The system hangs during boot.
  • The OverDrive diagnostics tell the user to update their system BIOS.

Description:

The BIOS may use an architecture dependent method for updating the ESCD.

Solution:

Obtain a BIOS update from the OEM or motherboard vendor.

The Pentium® OverDrive® Processor with MMX™ Technology is Identified Incorrectly by the BIOS

Symptom:

System reports that the processor is an Intel486™ processor, or is unknown.

Description:

Verify that the system configuration (L1/L2 caches enabled, etc.) is the same before and after the Pentium® OverDrive® processor with MMX™ technology installation. Verify that the L1 and L2 caches are enabled. Make sure the bus fraction or voltage pins haven't been changed.

Solution:

A BIOS update is required.

System reports that the processor is running at 50/100, 60/120, 66/133

Symptom:
System reports that the processor is running at 50/100, 60/120, 66/133.

Description 1:
Some BIOS code uses a lookup table or timing loop to determine speed of a processor. These may not provide the correct value. The affected systems known to date are: ALR Optima, Intel Advanced/ZP motherboard, Aptiva* 2168, and Aptiva 2768.

Solution 1:
Run the OverDrive processor diagnostics. This will accurately report the speed of the OverDrive processor.

The Aptiva 2168 and 2768 need a BIOS update equal to or greater than BGOUS1H.

The ALR still runs fine with no problems, but the BIOS does not put the correct identification up as it boots. The system should still perform as expected.

Description 2:
Some systems do not have a BF0 jumper and will not be able to make this jumper change. If the pin is not connected, then the Pentium® OverDrive® processor with MMX™ technology will default to 1/2.

Solution 2:
If the original processor is running at 2/3 or 1/3, the Pentium® OverDrive® processor with MMX™ technology should run at 1/2. If the original processor is running at 1/2 or 2/5, the Pentium® OverDrive® processor with MMX™ technology should run at 2/5.

Be certain the system is running at the system specified bus fraction.

Acer P130 BIOS Problem

Symptom:
The computer hangs during POST, but the diagnostics pass the BIOS test. The motherboard is an Acer P130, model 94137-1.

Description:
There appears to be a BIOS incompatibility with the Pentium® OverDrive® processor with MMX™ technology. The BIOS was Phoenix version 4.04.

Solution:
AcerOpen* stated there is no BIOS update for this motherboard and that it is incompatible with the Pentium® OverDrive® processor with MMX™ technology.

Chaintech P-166 BIOS Problem

Symptom:
The Diagnostics BIOS test fails on a Chaintech P-166 computer. The system came with an Award BIOS, version 4.50G, 1995.

Solution:
The BIOS needs to be updated to be compatible with the Pentium® OverDrive® processor with MMX™ technology.

Supermicro P54VL-PCI BIOS Problem

Symptom:
The computer locks up when trying to load Intel OverDrive processor diagnostics. The motherboard is a Supermicro P54VL-PCI and has an AMI BIOS, dated 1994, release 0627951800.

Description:
The BIOS is too old.

Solution:
Update the BIOS from SuperMicro at http://www.supermicro.com/*.

AT&T Globalyst 362 Driver Problem Symptom:
When accessing the Mustia CD-ROM on an AT&T Globalyst 362 TPC P-75, a divide overflow error appears when accessing DOS-based software. But it will work when accessing Windows 95* programs.

Solution:
The CD-ROM device driver needs to be updated.

Contact NCR at http://www.ncr.com/* for support.

IBM PC-700 Incompatible BIOS

Symptom:
With IBM PC-700 systems using BIOS 84, a Non-Maskable Interrupt Error (NMI) occurs at POST with the following error message:

110 F000:7C64

Description:
This only happens when all six memory SIMMS are populated. The processor works fine with only four SIMMS populated. The error persists after clocking down the motherboard to 50Mhz/75Mhz (Bus/CPU) speed. The error disappears when using a standard 166Mhz Pentium® OverDrive® Processor.

Solution:
Contact IBM Commercial BIOS engineering for more information.

Packard Bell 402CDW CD-Rom Driver Update

Symptom:
The Packard Bell 402CDW will generate fatal exception errors during POST with the Pentium® OverDrive® processor with MMX™ technology installed. The system has a Phoenix BIOS version 4.04, dated 9/28/95.

Description:
The problem occurred because mscdool was not loading correctly.

Solution:
Remove the following line from CONFIG.SYS and the computer should boot fine with the Pentium® OverDrive® Processor with MMX™ Technology:

"DeviceHigh=C:\PBTools\CR_atapi.sys\d:mscdool."

A new driver is required from Packard Bell at www.packardbell.com*.

Microsoft CUBE Error Message

Symptom:
When trying to run Microsoft CUBE, the following error message occurs:

"Fatal exception 0E has occured at 0028:C0016992 in VxD Win32 (01) + 0028:FFFFFF, current application will be terminated."

Description:
Conflict between two different joystick ports in the computer; one on a soundcard and the other on the card that came with the joystick.

Solution:
Disable the port on the SoundCard.

Rebel Moon Rising Error Message

Symptom:
When running Rebel Moon Rising, the following error message is generated:

"Fatal exception at 0028:FFFFFF."

Description:
Conflict between two different joystick ports in the computer; one on a soundcard and the other on the card that came with the joystick.

Solution:
Disable the port on the SoundCard.

Soyo 5TA A2/A5 BIOS Problem Symptom:
The Intel OverDrive Processor diagnostic test reports the Soyo 5TA A2/A5 needs a BIOS update.

Description:
BIOS fails the ESCD update tests.

Solution:
The Soyo 5T A2/A5 is not compatible with the Pentium® OverDrive® processor with MMX™ technology.

Thrustmaster Interface Problem Symptom:
Tyan Titan III motherboard with Award BIOS 4.51pg, dated 3/11/96, fails the Intel OverDrive Processor diagnostic test.

With the Tyan Titan III motherboard, Adaptec SCSI 2940 controller, Diamond Stealth 3400XL, and Soundblaster 16, the computer will lock-up in Windows 95, using applications in DOS 6.20a and using QEMM 7.5 or EMM386.EXE.

Description:
This problem occured because the user had the Thrustmaster WCS Mark II (Weapon Control System Joy stick) that plugs directly into the keyboard port and the keyboard plugs into the WCS Mark II.

Solution:
Remove the Thrustmaster from the system and the problem should disappear.

To use the Thrustmaster, the HIMEM.SYS line in the CONFIG.SYS can be changed to:

"Device=c:\windows\himem.sys /machine:13."

A BIOS update is required and can be downloaded from Tyan at http://www.tyan.com/*.

Trident Video Card Driver Update Symptom:
When loading Rebel Moon Rising, the following error message occurs:

"Attempting to perform an invalid operation."

Description:
This is a video driver issue supporting DirectX 3.0. The Trident PCI Video card does not support DirectX 3.0.

Solution:
Update driver from Trident Video cards. In this case, the user replaced the video card with Diamond Stealth 3D card and the problem went away. Support is available at http://www.tridentmicro.com/*.

Tyan Tomcat II+ S1562 Audio Problem Symptom:
Following the installation of the Pentium® OverDrive® processor with MMX™ technology, the system emits feedback when playing sound files off of the CD-Rom drive. The CD-Rom drive was a Panasonic 6X speed IDE CD-Rom.

The drive was plugged directly into the motherboard using the primary on board connector. All hard drives on the system utilized SCSI technology, rather than IDE, which enabled the CD-Rom drive to access the primary IDE controller. A separate SCSI CD-Rom was installed, which ran sound files without any feedback. The latest AWE32 drivers from Sound Blaster were installed, but this did not resolve the problem when using the IDE CD-Rom. Also, the latest Adaptec SCSI drivers didn't reduce the distortion.

The system was built using a Tyan Tomcat II+ S1562 Rev. 4.

Description:
The bus mastering drivers, included with Windows9, caused enough feedback to distort the signals on the bus.

Solution:
Install the latest bus mastering drivers, which can be obtained from the customer's motherboard or system manufacturer.

This applies to:

OverDriveŽ Processors



Solution ID: CS-011901
Last Modified: 16-Nov-2009
Date Created: 25-May-2004
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