ultima wrote on 28.10.13 at 19:49:06:



http://www.cpu-world.com/CPUs/K7/AMD-Mobile%20Athlon%20XP-M%203000+%20-%20AXMA30...

Vcore = 1.65V

But that's 2.2 GHz, if you overclocked the CPU it will need just a little more to be stable.

And the problem might not be the voltage, most likely the problem is the FSB, non standard FSB will cause a lot of problems.

66/100/133/200 MHZ FSB is ok, but 112 MHZ for example can cause a lot of problems.

Let's say you have a Barton 2500+, FSB 166. You can change the FSB to 200 MHZ, it will practically become a Barton 3200+ and it will run stable (in most of the cases).

Changing to FSB to 183 MHZ (for example) will cause a lot of problems, even if the final frequency will be lower.

I did some searching, and found this patch, for faster cpu systems with old IDE drives / win98se

Windows 98 Second Edition / Windows ME  IDE Hard Drive Cache Package

http://www.tacktech.com/display.cfm?ttid=90

after installing that, 3dmark99/2000 did run longer then before, but still failed at the 1st test.

I checked the temp of the cpu, it was 45C max, so that can't be the problem either

Gonna do a " reset to factory default" on the bios tommorrow, see if that helps, and will try lower speed, ya never know

I took a look at the pinmods needed to get this stable, seems the easiest is to set the vcore to 1.75V, that is still well within the safe range of overvolting, just a little over 5%, so....

on the other hand, it is just as much work to set the speed to 2300Mhz as it is to set the vcore higher, I'll try 2300Mhz 1st I think.

Not saying I'll keep it at that, just to find out if it can run that, and win98se, stable. probably will set it back to 2.2Ghz @ 1.65V after that.

ram is running in sync with fsb, and it is 512MB stick of PC3200, I took out the 4 x 512MB PC2100.

the timing for PC3200 speed is rated for 2-3-2-5 1T, so it should be able to match that easily at PC2100 speeds.
I have a feeling the cpu was the problem at that speed, so will try that 1st....is just connecting 2 more pins, so easily done.

EDIT:

I did the pintrick for 1.725V vcore, see if she'd run that, for some reason that resulted in still 1.7V only @ 2.26Ghz, so.....I booted, no problem, results are here:

900Mhz 150Mhz fsb

3DMARK99MAX @ default settings = 7094 3DMarks / 18696 CPU Marks
3DMARK2000 @ Default settings =  5117 3DMarks

1800Mhz 100Mhz fsb

3DMark99MAX @ default settings gave 7343 3DMarks / 28787 cpu marks
3DMark2000 @ default settings gave  5738 3DMarks

2260Mhz 133Mhz fsb

3DMark99MAX @ default settings gave 7418 3DMarks / 35510 cpu marks
3DMark2000 @ default settings gave  5996 3DMarks
3DMark2001SE @ default settings gave  3064 3DMarks


So WOW on the increase in cpu score in 3DMark99, appears that fsb plays a major role here.

I think I'll mod the other cpu exactly the same and see how far I can take the fsb, I had it stable at 150Mhz, so that would be another (150-133) x 17 = 289Mhz, resulting in 2.5Ghz max, or somewhere between that and 2.26Ghz

EDIT2

I've been looking through the bios and I can set the vcore manually, so no need to do pinmod for that. I will set the bios to 1.725V and take the cpu out and remove the stuff.

Is there any 3dmark version that will make use of the 2nd  XP-M3000+ and can still run on a voodoo5 card??

I know I'll have to run that on either win2k or xp, but still....