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What kind of PSU do I need for this rig?

Forum Homebuilt Systems : General Homebuilt - What kind of PSU do I need for this rig?

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Metalmurphy   09-28-2009 at 02:07:12 PM

I'm thinking on buy a new PC and this is what I have my mind set to.

Asus-P7P55D Motherboard
Intel Core-i5-750
Saphire HD4890 1GB DDR5
Kingston-PC10600-4Gb-DDR3-Dual-2x2Gb

What kind of PSU do you guys think I'll need? And more importantly, what brand do you think it's best? I've had 2 PSU die on me on my previous PC.


Thanks in advanced.

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saint19   09-28-2009 at 04:08:05 PM
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A 500W power supply. Antec, Thermaltake, cooler master, OCZ, all of this are very good brands. And finally, is better if you buy the PSU with PFC active.

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Metalmurphy   09-28-2009 at 04:46:53 PM
- 0 +

Just 500W? I figured i'd needed more for this.

I currently have a LC Power LC6550 V2.2 - 550W ( http://www.lc-power.com/htm/produc [...] 2&a_id=204 ).

You think this one is good enough?

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AsAnAtheist   09-28-2009 at 04:58:20 PM
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500w PSU would put you down to very few watts for future upgrades, not to mention be pushed probably higher than it's efficiency %. Also you don't want to push your PSU to anything over it's efficiency %. So I would recommend a 650w-750w~ PSU for your setup if you want it to be safe/last you a WHILE (even for your next setup).

People often underestimate the need for a good quality power supply with ample wattage room. For example my setup is running under around 350w with full load, my PSU is 400w... I can expect it to last me... 6 months before it dies, however I will probably replace it very soon (next month maybe)....

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saint19   09-28-2009 at 05:04:27 PM
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What number of HDD do you have? the case? DVD drives? what number of fans?

 

http://www.thermaltake.outervision.com/Power

 

The link is my system configuration, try with yours.


Message edited by saint19 on 09-28-2009 at 05:11:37 PM
------------------------------ If you like my answer, select me as the best answer.
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"Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.". Albert Einstein.
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Metalmurphy   09-28-2009 at 05:28:08 PM
- 0 +

2 HDDs, 1 DVD-RW and not much else. I don't use any of those LEDs and stuff for the case although I might use some fans.

Thanks for the link, gonna try it out.

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saint19   09-28-2009 at 05:57:36 PM
- 0 +

Ok, with the configuration that you said, the site has given me 303W. So, i think that the 500W PSU is more that enough, or for a future update, buy some 650W PSU.

 

And the PSU that you have, i think that isn't too good...

 

Good luck...


Message edited by saint19 on 09-28-2009 at 06:00:18 PM
------------------------------ If you like my answer, select me as the best answer.
------------------
"Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.". Albert Einstein.
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Bronze Home Brew badge jsc   09-28-2009 at 07:07:10 PM
- 0 +

If you know you will not CrossFire, a Corsair 550VX will work very nicely. If you are considering running two video cards, I'd get a Corsair 750TX - plenty of power and it has the necessary cables to power the video card.

My second choice would be Antecs in the same power class.

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Bronze Home Brew badge obsidian86   09-28-2009 at 07:14:23 PM
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get a googilian watt psu or what jsc said

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jay2tall   09-28-2009 at 09:14:58 PM
- 0 +

I would say a solid 500-600W PSU would be good. I am talking about a newer model that has a good amp rating on the 12v rails. 30A+ or so. That should do you well. If you plan on a 2nd card maybe a 750w. I have a PC Power and Cooling 750w and I like it alot. I can throw a 2nd card in there if I want an and have 60A on a single rail.

Just remember there are 500W PSU's and there are 500W PSU's.. The power supply you listed above, what are the specs on it?

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Metalmurphy   09-28-2009 at 09:37:41 PM
- 0 +

Here are the specs:

+3,3V: 35A
+5V: 40A
+12V1: 17A
+12V2: 19A

Not good? :S

Keep in mind I don't plan on upgrading this for a long time on any parts and i'm looking to spend the least money as possible.

Message quoted 1 times
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Bronze Home Brew badge obsidian86   09-28-2009 at 10:10:02 PM
- 0 +

corsair 550 watt
+3.3V@30A
,+5V@20A,
+12V@41A,
+5VSB@3A

Reply to obsidian86
jay2tall   09-29-2009 at 01:12:12 AM
- 0 +

Metalmurphy wrote :

Here are the specs:

+3,3V: 35A
+5V: 40A
+12V1: 17A
+12V2: 19A

Not good? :S

Keep in mind I don't plan on upgrading this for a long time on any parts and i'm looking to spend the least money as possible.




It's not great. But if you don't intend to OC, it would be fine.

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