How damaging would it be to run a 1.35v CPU @ 1.5v, along with higher clock speed and 100% CPU load, for 24/7? I just read about Sudden Northwood Death Syndrome, in which some P4s running at increased voltages would become less and less stable before finally giving up the ghost. Would the higher voltage affect my Athlon X2 in the same way if I ran it 24/7?

Putting extra voltage through anything is not good, but all overclockers take it as a risk. Up to you if you want to take the risk? 02coled C2D-E6600ES-8x425-@3.4ghz 1:1 Ram : CPU 4gb Elipedia @ 850mhz EVGA 680i BFG8800GTS-OC 320mb @630/1500/2010 680w Thermaltake Purepower 2 x 250gb Sata2 Vista Home Premium 32bit X

Many X2's will overclock quite well without a voltage increase, but it depends on the CPU. How much are you overclocking? How about the naming the specific CPU you have, along with the rest of your system specs?

I've always taken CPU overvolting with extreme caution. It took me all of my "computer courage" as well as the purchase of a Thermaltake Big Typhoon to take my Opty 185 from 1.35v to 1.45v so that I could hit the 3.2GHz mark. Had I not been able to hit 3.2GHz at 1.45, I would've returned the HSF and just stuck with 3.0GHz @ stock voltage. Wouldn't have risked 1.5v. I've had a fear of increasing CPU voltage too much ever since killing a 1.4GHz Tualeron by raising its voltage to 1.8v (from 1.475v) and running it at 2.1GHz. It's a bird...a plane...Super P3 PIII-S OC @ 1.66GHz 2GB PC2700 7950GT AGP Optoma 1280x720 projector JBL amp and speakers 19,454 3DMark01--beats P4 2.5A with same card by 300.

Athlon 64 X2 3800+ Gigabyte GA-K8NSC-939 motherboard HIS Radeon xx1950 Pro 512MB AGP 8X 2GB Corsair Value Select PC3200 I have one of the crappier X2 3800s. It will only take 2.3GHz at 1.35v. I've discovered that by running it at 1.5v, I can do 2.5GHz. But after reading about S.N.D.S., and now Jackbomb's post, I really don't know if I should do it. Anyone have any POSITIVE stories about overvolting their CPU?

I dont believe the trade off of 200 mhz is worth the added voltage. Be Good, Robert core2duo e6600@3.32w/Big Typhoon gigabyte p965-ds3_rev1 w/chipset cooler 2X1GB ddr2 800 ocz platnum WDC 70GB Raptor Enermax 485W PS Gf8800gts320

Thanks Robert, that's what I was thinking as well. I guess I'll run it at 2.3GHz with 1.35v.