Warning: Spoiler! (Click to show)
Originally Posted by BBZZHH
Which PSU are you waiting for out of curiosity? I have the Silverstone 600w sfx and I can honestly say I have never heard the PSU fan. There is a slight coil whine which quite a few others also have though. I do know a few people from the NCase thread on another forum who have gotten their hands on a SFX - L PSU from Japan. I think they were pleased with the noise.
The Silverstone SX500-LG, which should be released in the near future - it's got a 120mm slim fan on it instead of an 80mm. The release has been delayed a bit due to them testing it to make it run as quiet as possible, but is estimated for this month/next month.
I did consider getting the 600w one, but from what I've read it's kinda hit and miss as to how much coil whine/fan noise you get. A lot of people complain that it's annoying on idle, and I do want my pc to run silent on idle.Warning: Spoiler! (Click to show)
Originally Posted by CynicalUnicorn
I think you can run a GM204 card (the 970 and 980), a GK104 card (660Ti, 670, 680, 760, 770), or a Tonga card (R9 285) based on the amps. Less is also possible, such as Pitcairn.
348W off the 12V rail should allow for some pretty powerful GPUs. Assuming 100W for a quad-core CPU, you've got about 200W to play with and some overhead. Don't run Furmark too much. Also remember that whatever a kill-a-watt tells you is from the wall. The PSU is going to be inherently inefficient and at best 10% of the power goes to waste. E.g. if you're pulling 300W then the PSU might be outputting between 240W and 270W.
Thanks, will check out how much power it's pulling from the wall soon.
Originally Posted by brucethemoose
Download HWInfo64 and look at power consumption, core/memory VRM current, voltage and such for your GPU and CPU under a stress test.
If you see figures that your PSU can't really handle, undervolt and underclock your 970 a bit. That 350W PSU can definetly handle an undervolted 970.
Thanks, will do. I've set the power limit to 90% for the time being, might adjust it a bit once I've measured the figures.
Edit: I have some numbers on wattage from the wall:Full System Power Consumption (measure from wall - PSU 90% efficient)
Power Limit set to 90% in Afterburner
Prime95 (CPU Only): 110W
Unigine Valley (High GPU + Medium CPU load): 192W
Kombustor Only (High GPU + Medium CPU): 197W
Prime95 + Kombustor (Ridiculous CPU + GPU load): 235W
Power Limit set to 100% in Afterburner
Unigine Valley (High GPU + Medium CPU load): 205W
Kombustor Only (High GPU + Medium CPU load): 213W
Metro Last Light: 205W
Given that the PSU is 90% efficient, that's some pretty low consumption figures for my ITX system. I don't dare to run kombustor for extended periods though
Bit off-topic, but one annoying thing about this card (the gigabyte 970 ITX version) is that the fan doesn't run silent on idle. I might consider returning it for the ASUS Strix model instead, which I only just found out also requires just 1 8-pin connector. Does anyone know if aftermarket VGA coolers fit a 970?Edited by Mongoose135 - 1/9/15 at 6:22pm