PSU for a slightly OC'ed 805D

[WiNole]

Well I think I need a new power supply for my power hungry 805D. When I run 2 instances of prime I get a fairly loud whine....close one down....it fades slightly. Close both...quiet again. Does the same thing with anything CPU intensive. Is it the power supply?
At stock 2.66GHz it's fine.....@ 3.0-3.4GHz it starts to talk to me.

I'd like to run at 3.4 since I paid $50 for good air cooling.
Can you suggest a good power supply?
I was looking at The Antec TP-550. I know it has dual 19A 12+ rails and that a single rail is better for the Intel. Would it work?
If not, can anyone suggest a moderately price single rail unit. OCZ Powerstream 520 is out of my range...this is only a backup pc.
What about one of the Enermax models?


Also...pay no attention to my sig....OCZ is now on the AMD rig and the Fortron is history. Haven't updated the sig...sorry.

[jivetrky]

If you're looking at an Antec TP 550W ....why not spend $10 more and get the OCZ ? (that's after the $25 rebate, however)

http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=316506&prodlist=pricegrabber

$105 - this should be in the cyber deals section :)


Actually go here:

And get it for less than $100 shipped!!! (http://www.monarchcomputer.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=M&Product_Code=100346)

[Know Nuttin]

The whine might be coming from the board. Coil whine is not uncommon.

[WiNole]

Jive: I found the TP-550 for $68 shipped after $15 rebate....so it really wasn't close to the $ in the link you posted but thanks for looking.

I have heard of the motherboard whining before...I have another 775 board I could test...UGH...I didn't want to change it out but I guess I should before ordering a psu I don't need.

[WiNole]

Well...glad I went to the trouble to change out the motherboard. Whine is now gone.
Question--Is there anything wrong with the motherboard that was whining or causing the psu to whine? I have read a lot of different opinions on this subject.

[Know Nuttin]

it probably wasn't causing the PSU to whine. It was most likely the coils on the board that just couldn't handle the power draw clean. Would work fine non-overclocked but not overclocked, it seems like you've figured this out already.

[WiNole]

Yeah...probably the mb I guess. I tried to isolate the noise using a paper towel roll but I couldn't pin point the exact location...just the power supply area.
All is good now...thanks for keeping me from wasting money on a new power supply. Of course new hardware is never a waste...just feeding the addiction.