dropped 3.3V to 3.2V now extra 50MHz:) but question

[arsenius]

I dropped the 3.3V (i/o?) voltage to 3.2volts, and now I can run @ 950 1.85v (was at 900 1.70v w/ my duron 750, i could do windows and games @ 950 before, but couldnt run prime 95)

now prime 95 has been running non stop for almost 2 days. however, the weird thing is that when i restart my computer, prime 95 errors out at first, waits 5 minutes, and is perfectly fine after that.

Why is this?

[fireball****aka fireball_87]

it may be that the psu and mobo are providing more power to other things sutch as the drives and vid card, and not able to provide enough to the cpu to maintain a 1.85v current so in accualty you may be getting 1.83 to the cpu witch may be not enough to kepp it stable at that speed, but when things settel down the power draw is less and it can crank the full current to the cpu.(this would also indacate that you at the razor edge of what you'll get ot of this chip with out a volatage mod) hope this helps ;D

ps: the reson that you could get more out of the chip(and this would be right in line with the theroy above) is that by dropping the i/o volatage the mobo was able to dedacate .01v more to the cpu.

[Nagorak]

I'm starting to think Prime95 may not be the greatest stability testing program for the reason you listed above. I just broke in my new AXIA 1.0 GHz chip and had it running fine at default voltage at 1.4 GHz. Then, I played with the settings some more, but eventually came back down to 1.4 GHz...unfortunately now it is unstable except at 1.85 volts for no obvious reason... Unless the chip has greatly burned out within 30 minutes this makes no sense...

[Hoot]

I have to agree with fireball. If your PSU is right on the edge of its capability, reducing the +3.3 to 3.2 would make more power available to the +5, since the wattage for those two is derived from much of the same circuitry.

Hoot

[Hoot]

I almost forgot. If Prime95 errors out, it has been my experience that you have to exit the program and restart it. Simply restarting it seems to cause it to ignore errors afterwards.

Hoot