Overclocking the k6-2/300

[hardy]

I have an AMD K6-2/300 on a PC100 m590 motherboard. I set the clock multiplier in the BIOS to 4.0x and the system has been running great at 350 for about 3 days now. I wonder why it didn't go to 400? I am still using the original fan and heatsink with some Radio Shack heat sink compound added. When I set the multiplier to 4.5x the system hangs after POST. Do I need to up the CPU voltage from the default of 2.2V to get higher speeds?

[aurelio]

Hi,

Are you sure that the FSB is 100MHz?
350/4=87.5Mhz.
You must controll the FSB jumper setting or
if the jumper are not present, look the in the BIOS.

Bye
Aurelio

[This message has been edited by aurelio (edited 11-17-99).]

[hardy]

Hi Aurelio,

I checked the bios and the CPU base frequency is set at 100mhz and the multiplier at 4x. It comes up as at 350. Windows 98 running perfectly.

Hardy

[cbrsurfr]

Never trust your bios. Try using cpuid or cpuclk. I don't remember where I downloaded them. I believe cpuclk just gives you the total speed. Cpuid gives you all the info on fsb, multiplier, total speed.... Hope this helps.

[aurelio]

Hi,hardy
Hi,cbrsurfr

you can find the utilities at this address
http://hp.vector.co.jp/authors/VA002374/nrklv/e/soft.html

WCPUCLK
self-extracting . Version 1.3�@(official version) . 1999/04/25[SUN] . wclk130.exe . 21,223 Byte .
http://cgi2.tky.3web.ne.jp/~nrklv/nrklv/cgi-bin/softdl.cgi?wclk130.exe

WCPUID
Version 2.6d (official version) . 1999/11/03[WED] . wcpu26d.exe . 68,165 Byte
http://cgi2.tky.3web.ne.jp/~nrklv/nrklv/cgi-bin/softdl.cgi?wcpu26d.exe

Look detailed web pages.

Bye
Aurelio

[enderst]

goto the mb manf. web site and make sure your bios is up to date.

[hardy]

Hi cbrsurfr, Thanks for the advice.
Hi Aurelio thanks for the links,
I have listed below the info from CPUID. The CPCUCLK program gave me the same speed. I also downloaded SOFSFP from the site but could not get it to work since my MB was not listed. Besides, there are some really scary things in there I really don't understand.

[ WCPUID Ver.2.6d (c) 1996-99 By H.Oda! ]

Processor : AMD K6-2 Model-8
: 1 - 1D97D839
Vendor ID : AuthenticAMD
Type ID : 0 (0)
Family ID : 5 (6)
Model ID : 8 (8)
Stepping ID : 0 (0)
Brand ID : 0 (0)

Clock Frequency
Internal : 359.54 MHz
External : ---
Multiplier : ---

L1 I-Cache : 32K
L1 D-Cache : 32K
L2 Cache : ---
L2 Latency : ---

MMX : Supported
KNI/SSE : Not Supported
3DNow! : Supported

Machine : IBM PC/AT
Version : Windows 98 Version 4.10.1998

----------- : --------
F.Flags : 808009BF 80000005
I@PCP : 00000000 00000000 00000000 00000000
: 00000000 00000000 00000000 00000000
A@EXT : 00000000 02800140 20020220 20020220
: 00000000 00000000 00000000 00000000
W@EXT : 00000000 00000000 00000000 00000000
C@EXT : 00000000 00000000 00000000 00000000
W@010A : 00000000 00000000
W@0147 : 00000000 00000000
A@C080 : 00000000 00000000
A@C087 : 00000000 00000000
A@C112 : 00000000 00000000
A@C115 : 00000000 00000000

[hardy]

So I really got daring and set my multiplier to 5x and the CPU voltage to 2.4. It started to come up and reported 450 mhz then locked up. It would never even get back to POST after that and the only thing I could do was to clear CMOS and start from scratch.

Scary stuff.