Hi.
NF7-S (v2.0)
2x256mb sammy pc2700
xp1700 (1.6v default)
gainward gf4 ti4200
levicom 450watt
I tried some overclocking on the system above. I managed to get to 2042mhz (180x11.5) or something at 1.85v. When i put the multipler to 12 so 21**mhz the computer crashes to the desktop in games, and wont do a loop of 3dmark.
I want to increase voltage, but is it safe? i have heard that the mobo unvolts a bit...how serious is this, how should i compensate?
Thanks
Will


LinkBack URL
About LinkBacks
Reply With Quote
Tbreds and Barton are actually designed for 1.65v so raising to that is not actually overvolting at all (I'm sure AMD would disagree). As a safe overvolt 1.70v is the highest I'd advise but since those CPUs are now so cheap (and Barton has/had come down in price) it wouldn't hurt to try up to 1.75v IF it enabled you to run significantly faster. Overvolting places a lot more stress on the CPU, can cause some damage to the CPU and gives off LOADS more heat.
As pretty much covered, o/c in small steps using default voltage (either 1.60v or 1.65v) and see how high you can go. When you find the stable limit either back off a little for the long term or else add 0.05v (at a time) and see if it helps you to go significantly higher.
Your RAM is only rated to 333FSB (2x166), I wouldn't advise exceeding this (without PC3200) but simply use multiplier to go higher. A TbredA should top out around 1.8-1.9ghz while TbredB top out around 2.1-2.3ghz but every chip is different. It's best to use Prime's tortue test to test you're 100% stable, if you can run Prime the CPU should handle anything you throw at it in the real world.
Rem to o/c your 4200 as that's where the real gaming perf gains will come from, 250/500ish stock should often get between 280/550 and 310/600 (past 4400/4800SE).
Check the stepping code found on the CPU itself. All TBredAs have a stepping code which ends in "A," like "AIUGA". All TBredBs have a stepping code which ends in "B," like "AIUGB". 