Overclocking 1.2 AXIA on a A7V133

[Triangle]

Hi All,

Does anybody can give me a clue on how to overclock my 1.2 AXIA TB ?

Here is some working data :

Average temp of the processor 42 degrees Celcius
Memory 256 MB Cas 2
Motherboard ASUS A7V133
TB 1.2 Ghz AXIA only 1 1/2 moth old (from the production line)

Here are some succesfull settings :

12*105 = 1260 Mhz = 140 Mhz Memory.
3D Mark 2001 score : 2753

12*109 = 1308 Mhz = 145 Mhz Memory.
3D Mark 2001 score : 2780

These failed :

12.5 * 109 = 1417 = 145 Mhz. Memory
vcore 1.85
Crashes within windows

12.5 * 108 = 1404 = 144 Mhz. memory
vcore 1.85
3D Mark 2001 score : Crashes within 3d mark 2001.

12.5 * 107 = 1391 = 142 Mhz. memory
vcore 1.85
3D Mark score : Crashes within 3d Mark 2001 (after test 12 of 20)

So it seems that the processor is not locked but how can i overclock even further ?
please some information about the FSB, multiplier and other things related to overclocking.

Thanx.

Ronald.

[pqt]

Looks like u have reached the limit with PC-100 memory in your system. If u used PC-133 memory, u probably could tweak it a bit further. A better HSF could help too.
My setup is 1.2@1.440 (10.5*137), 1.85V. Higher than that, the system is not stable

[castle lager fan]

Huh??

12*108=145 memory??? How does that work? Does the Asus step the FSB and memory settings different. I have never heard of that. WHat HSF are you using?

[ken257]

Yes you can run the ram and cpu at a different bus speed. I would recomend that you set the ram speed back to normal instead of ram+pci then overclock using the FSB. For example if you push the FSB to 140 with a multiplier of 10 you will have memory at 140 and cpu at 1400. This will give you more flexibility and give you more speeds to play around with.

[castle lager fan]

WOuldn't setting your FSB and RAM at different speeds cause you a massive lack in performance? Your CPU reads everthing from RAM. If it goes fast without the RAM you will have empty cycles, unless the data and instructions are in the cache. 108 FSB and 140 RAM does not sound healthy.

I also noticed that people getting good high clocks normally stay below 12x multiplier and can get a good FSB speed. The reason why I'm probably stuck at below 1.6 (although I can get it and a PRime 95 error ;-) ), cause I can't get a good FSB speed due to poor Mobo FIC AD11. Live and learn.

[Oni]

from what i've gathered, your chip is a 1200 AXIA at 100 FSB? I didn't think AMD made those. But, anyways, try a lower multiplier. Try something like 9*133 to get 1.2 or 10*133 to get 1333, or raise your FSB even higher to get something fast, but remember to watch out for stability issues.

[Triangle]

Thanx everybody,

I've been away for the weekend so tonight i can try some things with the input off you all.

Tomorrow i'll let you all know what i've accomplised.

Thanx again,

Ronald.

[yermomlluvus]

12.5*109 = 1362.5 not 1417