• We should now be fully online following an overnight outage. Apologies for any inconvenience, we do not expect there to be any further issues.

AK35GTR and AGP bus overclocking probs

RedWolf

Golden Member
Oct 27, 1999
1,064
0
76
I've got an AK35GTR, Athlon XP 1800, PC 2700 ram (crucial 2.5), and a Radeon 8500 128. I'm having some trouble overclocking to a fast bus speed. I can only get to 146 stable.

I can run boot up to about 160 and get windows up and running pretty stable at 150-155. I can run sandra cpu tests at those speeds. But, every time I run any video intensive test (3dmark, Q3, etc) my system either freezes or reboots. I'm thinking it is the video card that is causing the problem. I only have two cards in the system. The video card and a linksys lan card. I can't up the agp voltage (as far as I know).

Couple of questions.
Anything I can do to make the agp more stable? I've turned off fastwrites and a few other things.
I'd like to find a chart that lists the agp and pci speeds at each fsb speed. Anyone know where I can find something like that?
Third question. Would it be worth my time to take the epox 8kha+ out of my second computer and try upping the agp voltage? (not using the raid functions of the GTR anymore)
 

ChampionAtTufshop

Platinum Member
Nov 15, 2002
2,667
0
0
from 133-165 cpu fsb, pci is 1/4 of that and agp is 2x pci

so at:
160fsb
pci: 40
agp: 80

...most likely its the pci...

get to 166 and 1/5 pci divider will kick in...if the board has it?
what chipset is the board again?
 

RedWolf

Golden Member
Oct 27, 1999
1,064
0
76
It is a 266a. 166 is tough. I can't seem to get it unlocked. Had no problem with the 1600 in the other machine but this one is tough. I'll try again, though.