Originally Posted by staccker
i wanted to underclock to see how much less watts it could use and still function well. Usually a NAS is running 24/7 so the less power usage the better. I have a g3258 laying around and thought why not give it a go for a NAS instead of buying one.
Alrighty, check-in time. I hit the lower voltage limits of my board. H97m Pro4 P1.20. lowest clock is 800MHz, which I should have guessed as that's the lowest Microsoft Speedstep will take it. Weird **** trying to even get started. I cannot underclock using the "Per Core" setting on the mobo, which, funny enough, was required for me to manually overclock. I had to reset UEFI to defaults, then change to "All Core" before attempting to go under 32x. At 3.2, I could also boot and run prime and dick around at .9v, but at .8v I got a crash that required a power down and drain (unplug, hold power, etc) to come back online to fix the voltages. No bigs. But, at 1.2MHz@.82v, I attempted to change my VCCIN (input v) to 1.2 from the 1.3 I had been using the whole time and it killed me. Had to pull the bios flash jumper to fully reset in order to fix. All this being said, here are the results!
2.0/2.0 @ .89/.89 .001off 34c prime in-place small
.88/.88 " " 33c
.87/.87 " " 32c
1.2/1.2 @ .87/.87 .001off 45-55fps in CSGO very-high, no aa/ss
.85/.85 " " 30c
.84/.84 " " 30c
.83/.83 " "
.8/.8 @ .81/.81 " " 28c
As I said, all of this was at 1.3VCCIN/inputV and I stopped checking temps because they were miniscule and actually, skewed because my "max" temps were just carry overs on boot from the bios temp, which for some reason is always a couple degrees hotter. I didn't care to **** with lowering the VCCIN after getting the vrin/cache v to the mobos lower limit. Oh yeah, during this I had the cache matched to the core and the voltages identical, hence the .xx/.xx and a .001 v additional offset on both.
CS:GO was playable, but the menus and **** were clunky at 1.2MHz and whatnot. At this core clock, the bios lagged a bit if you held an arrow down. At 800MHz, the UEFI bios was annoyingly slow. Clearly, this wasn't intended to happen. I definitely think with some playing around, you could get a decent low volt setup. ****, if you decided to do real work on the NAS, just set a profile to OC it to make changes and you'll be ready to go.