AMD K6-2 Tower

AMD K6-2 was a processor released mid-1998 as AMD's response for Intel's Pentium Pro and Pentium II architectures. These CPUs had 3DNow instruction set making it more powerful in some applications. This is a ca. 1998 machine with K6-2 processor and Tseng ET6000 video card - a PCI board which had better performance than typical S3 ViRGE these times, and in text mode display was just unbeatable. Additionally it has a hard drive drawer for backups. Unknown "G&B" sticker is present on casing.

Approx. year 1998

Class ATX
Speed 450MHz
(2x64MB DIMM PC100)
(4 SIMM72 slots free)
version without GUI setup
Graphics Tseng ET6000,
Sound On-board
SoundPRO HT1869V+
Ports I/O On-board,
2x COM, 1x LPT, PS/2
Network 3Com EtherLink XL PCI
(RJ45, BNC, AUI)
System expansion bus 3x 16-bit ISA slot
4x PCI slot
Floppy/removable media drives 1x 3.5" 1.44MB floppy disk drive
Hard disks/ATA devices: Fujitsu MPC3043AT (4.3GB), C/H/S: 8940/15/63

40x IDE CD-ROM drive

Drawer for replaceable IDE HDD

Peripherals in collection:
 - None

Other boards:


Casing ATX tower
Non-standard expansions: None
Operating system(s): MS Windows 98SE

Contents: Starting, usage Drivers Links


It's a PC, with AMI BIOS, but in many revisions without this famous AMI BIOS Setup GUI. It starts normally.

If you want to run faster processors, you have to use undocumented jumper settings. As it is not Super Socket 7, it will not run at 100MHz, only at 83MHz which is sufficient for many AMD processors and even may allow some overclocking (generally many AMD K6-2 and K6-3 could work well when overclocked a bit, but mainboard and RAM have to be good). The most important thing is multiplier settings, these additional undocumented settings are following:

Jumper settings for PC-Chips M575 (and clones) for newer CPUs
CPU Multipl. x Freq. JP5 A JP5 B JP5 C JP7 A JP7 B notes
AMD K6-266 MHz 4 x 66 MHz 2-3 1-2 2-3 OFF ON  
AMD K6-300 MHz,
K6-2/300-66 MHz
4,5 x 66 MHz 2-3 2-3 2-3 OFF ON  
K6-2/333-66 MHz 5 x 66 MHz 1-2 2-3 2-3 OFF ON  
K6-2/366-66 MHz 5,5 x 66 MHz 1-2 1-2 2-3 OFF ON 2)
K6-2/400-75 MHz
(375MHz )
5 x 75 MHz 1-2 2-3 2-3 ON OFF 1) 2)
K6-2/400-75 MHz
5,5 x75 MHz 1-2 1-2 2-3 ON OFF 1) 2)
K6-2/400-83 MHz
5 x 83 MHz 1-2 2-3 2-3 OFF OFF 1) 2)
K6-2/450-83 MHz(457MHz) 5,5 x 83 MHz 1-2 1-2 2-3 OFF OFF 1) 2)
K6-2/500-83 MHz 6 x 83 MHz 2-3 1-2 OFF OFF OFF 2)
1) also for AMD K6-3, with Core-Voltage 2,2Volt (tested)
2) In Windows 95 requires WIN95-Patch for fast CPUs.
The CPUs won't overclock or the external cache will not work.


But if you still see a lower frequency than set with jumpers, you have to upgrade BIOS. BIOS upgrade procedure is typical as in many PCs, and as result you may get detectable CPU. Contrary to information above, some small overclocking is possible, but don't expect jumping 100MHz more.

Tseng ET6000 is a video board which has drivers in Win9x and they should be installed with OS. If you plan to try with Linux, it's worth as this board is really fast in high-resolution text modes.





M575 manual
BIOS updates - official one and patched for K6-Plus CPUs. Patched version not tested.
ALI / Tx Pro chipset driver
SoundPRO audio drivers for Windows 9x.





Links - Mainboard in collection