I recently upgraded from an C2D platform (Gigabyte GA-G31M-ES2L + E5200) to Ivy Bridge (Intel DH77EB + Core i5-3750k). Motherboard, CPU and RAM were upgraded.
Other components were retained: OCZ Agility 2 SSD, MSI GTX 660ti GPU, Corsair CX400 PSU w/Yate Loon D12SL-12, "passive" Scythe Rev A Ninja (thanks to kater's post
!) and two Arctic F-series PWM fans (1 120mm exhaust and 1 92mm intake blowing on the GPU).
The build was painless, Win7 Ultimate x64 installed without issue.
HOWEVER, my PSU makes noise now where previously it was inaudible. As soon as Windows was installed and updated I ran the WEI test and the PSU started squealing like crazy! It also clicks pretty much all the time, sort of like the "seek" sound a mechanical HDD makes.
I read this in the G360 thread...
Seasonic Rep wrote:
In the BIOS, the function of Audio Always On must be DISABLED as this does not conform to ErP standards.
As well, in the BIOS, all energy savings modes such as ErP/EuP, StandBy Energy Savings, S4/S5, must all be ENABLED.
... Thinking that it might apply to me as well. My motherboard's bios doesn't appear to have those options, or they're called something else, or hidden - I can't find them.
So I'm looking for advice on how I can quiet this PSU. I am not sure how to translate the suggestions above into the options available in my motherboard's BIOS. Based on other posts, it seems like the issue is related to the 5V rail - what's all on that rail? I can just trial & error disable 5V stuff.
I do not have spare PSUs to test with. I could pull an Antec EA380 from my HTPC, but it would be a pain because of elaborate cable routing. I'm not opposed to a new PSU, but my case (Antec NSK3480) limits me to 140mm deep PSUs if I want to keep an optical drive. The SeaSonic SSP
power supplies are supposedly the non-modular "OEM" version of the Seasonic G-series. They're short because they omit modular connectors. The SSP-450RT
is 140mm deep. Few reviews on these, but the G-series is well-liked and affordable.