Author Topic: 1 Kilowatt PSUs  (Read 1682 times)

Offline Skuzzy

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Re: 1 Kilowatt PSUs
« Reply #15 on: April 22, 2010, 01:46:16 PM »
kinda curious is why go with a lg775 when theres no upgrade path. The newer Intel sockets should have a upgrade path for the future

Uh, currently there is the LGA1156 and LGA1366.  Next year there will be another one to replace these.  Chances are, if you keep a computer longer than 2 years you have bought a dead end.

The LGA775 is still a perfectly viable solution and it costs much, much less than the 1156 or 1366 alternatives.
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Offline Chalenge

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Re: 1 Kilowatt PSUs
« Reply #16 on: April 22, 2010, 01:50:02 PM »
If you have two really good but smaller PSUs you can use two in the same case. To do that you need to be able to make up a patch wire between the primary PSU (from one of the 4-pin molex connectors) to the second PSU (ATX MB connector) and have a case that can hold two PSUs like the Coolermaster ATCS 840. I have a few systems hooked up like this and didnt have a problem with any of them but I also know how to do soldering.
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Offline Denholm

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Re: 1 Kilowatt PSUs
« Reply #17 on: April 22, 2010, 03:19:41 PM »
I'm not comfortable with my soldering skills. If I were to use two PSUs, I'd use one to power the motherboard, processor, optical drives, hard drives, and case fans while the second powers both video cards.
« Last Edit: April 22, 2010, 03:22:25 PM by Denholm »
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Offline Chalenge

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Re: 1 Kilowatt PSUs
« Reply #18 on: April 22, 2010, 03:35:51 PM »
I looked a few times for a patch cord to be made that would make it possible without soldering your own (so far without success).

If you do that I hope its fairly easy to reach the back of your system. The up side of the ATCS 840 is the removable MB tray massive cooling options and twin PSU mounting points (above and below).
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Offline Denholm

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Re: 1 Kilowatt PSUs
« Reply #19 on: April 22, 2010, 03:42:16 PM »
Yeah, this will become a mess if power requirements approach that PSU's capacity.
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Offline Chalenge

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Re: 1 Kilowatt PSUs
« Reply #20 on: April 22, 2010, 03:56:00 PM »
Well I have a problem with that PSU (the one by OCZ) even though it is a 'Gold' unit. It puts off heat (lots) and at 110V it is not really a 'Gold' unit. I use the Seasonic X750 (two) with GTX 295s (also two) and they really are quiet and do not put off a lot of heat (not much at all actually).

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Offline Denholm

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Re: 1 Kilowatt PSUs
« Reply #21 on: April 22, 2010, 04:06:02 PM »
Not sure if you read my later post. I switched from the OCZ 1KW to a Seasonic 850W.
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Offline Chalenge

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Re: 1 Kilowatt PSUs
« Reply #22 on: April 22, 2010, 04:13:44 PM »
Its a good PSU but its a twin rail system (40+40 Amps).
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Offline Denholm

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Re: 1 Kilowatt PSUs
« Reply #23 on: April 22, 2010, 04:23:00 PM »
Do you know of any that are single? So far I've only found multiple-rail PSU's (other than the one from OCZ, which turns out to be poor quality).
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Offline Chalenge

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Re: 1 Kilowatt PSUs
« Reply #24 on: April 22, 2010, 04:32:03 PM »
Look really close at the image I posted.  :D
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Offline Denholm

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Re: 1 Kilowatt PSUs
« Reply #25 on: April 22, 2010, 04:35:17 PM »
I was looking at 850W PSUs, not 750W. I enjoy a lot of overhead.
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Offline Skuzzy

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Re: 1 Kilowatt PSUs
« Reply #26 on: April 22, 2010, 04:55:17 PM »
Running a switching power supply under too light of a load is not a good idea.  Switching power supplies are designed to put out their best/cleanest power when they are under about 75 to 80% load.
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Offline Dragon

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Re: 1 Kilowatt PSUs
« Reply #27 on: April 22, 2010, 04:55:43 PM »
I enjoy a lot of overhead.


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Offline Chalenge

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Re: 1 Kilowatt PSUs
« Reply #28 on: April 22, 2010, 05:25:01 PM »
I dont think the 850 is a good idea because you will always be running it 'out of spec' if my power estimates are correct. However you can read up on PSUs and come to your own conclusion:

http://www.hardwaresecrets.com/article/181

At the bottom is a link to more about switching power supplies.
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Offline guncrasher

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Re: 1 Kilowatt PSUs
« Reply #29 on: April 22, 2010, 05:51:12 PM »
The mobo I have the ud3p and I can't put a large cc like the 9800 gtx+ in the lower slot.  It interferes with the power, reset and other connections.


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