- Apr 8, 2004
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So I got one of those $90 3800+ x2 Toledos for a cheap upgrade from my s939 3500+ single-core. I wanted to overclock it to 2.4GHz, which is the speed I was running my 3500+, to make sure there was no loss in performance in games that may not utilize both cores optimally. No need to push the chip to its limits, at least not yet.
It OC'd to 2.4GHz @ stock voltage no problem, but it was running a little hotter than I would have liked. I explored various cooling options before getting the crazy idea: why not try undervolting it? I didn't expect it to work, but I figured it wouldn't hurt anything to try.
Stock voltage on this chip is 1.3v. My ASrock board allows voltage adjustments in .025v increments.
I was actually able to load Windows all the way down @ 1.2v! However, at that voltage I got a rounding error in SuperPI, so I bumped it back up to 1.25v. At that voltage, it's stable running 2 instances of Prime95 for 12+ hours. This is @2.4GHz (stock is 2Ghz, so that's a moderate 20% overclock).
Temps are not dramatically better, but it did shave off a couple degrees. Mid 30s idle, low 50s full load (dual-prime95).
Has anyone else tried this weird combination? Anything I should watch out for?
It OC'd to 2.4GHz @ stock voltage no problem, but it was running a little hotter than I would have liked. I explored various cooling options before getting the crazy idea: why not try undervolting it? I didn't expect it to work, but I figured it wouldn't hurt anything to try.
Stock voltage on this chip is 1.3v. My ASrock board allows voltage adjustments in .025v increments.
I was actually able to load Windows all the way down @ 1.2v! However, at that voltage I got a rounding error in SuperPI, so I bumped it back up to 1.25v. At that voltage, it's stable running 2 instances of Prime95 for 12+ hours. This is @2.4GHz (stock is 2Ghz, so that's a moderate 20% overclock).
Temps are not dramatically better, but it did shave off a couple degrees. Mid 30s idle, low 50s full load (dual-prime95).
Has anyone else tried this weird combination? Anything I should watch out for?