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[Solved] Is My PSU have enough juice for I7

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - [Solved] Is My PSU have enough juice for I7

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Best answer from JohnnyLucky.

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gillhooley   10-06-2009 at 07:54:04 PM

Building a new system.

I am going to try and reuse my psu till I add crossfire. Do I have enough juice?

Gigabyte x58 ud3r
I7 920
Radeon 4870
3 harddrives 500,500, 160
2 drives dvd and blu ray
tv tuner card

I have a Raidmax 530w psu

-3 =28a
5v =34
12=20a
12=17a

Thoughts? Thanks

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Best answer from JohnnyLucky
As obsidian86 already pointed out, Raidmax is not known for quality power supplies. Luckily, your current pc configuration does not require a lot of power, just don't push it to the limit.

For the future, the general rule of thumb is a high quality 500 to 550 watt power supply with sufficient current (amps) on the 12 volt rail(s) can easily power a system with any single video card made. A high quality 700 to 750 watt power supply with sufficient current (amps) on the 12 volt rail(s) can power a system with two video cards operating in dual mode. There are a few exceptions like the new ATI Radeon HD 4770, 5850, and 5870 cards which use a little less power due to their energy efficiency.

Corsair, PC Power & Cooling, and Seasonsic are some of the brands that have a reputation for high quality power supplies that consistently earn high marks in technical reviews. They are reliable, stable, and come with a 5 year warranty. Lately we've been seeing a few other brands offering some high quality units.
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sirkillalot   10-06-2009 at 07:58:30 PM

http://extreme.outervision.com/psucalculatorlite.jsp

------------------------------ AMD P2955X4 ATI 5870 DX11 [:boudy:2]
24" dell 1900x1200 2x74 wraptor hd's1 X-FI pro gamer sounds
2G ram log.Z5500 speakers 650w toughpower G15kb dvd....ITS A MEAN GREEN GAMING MACHINE
 Reply to sirkillalot
obsidian86   10-06-2009 at 08:13:55 PM

raidmax isn't known for their quality

Reply to obsidian86
gillhooley   10-06-2009 at 08:36:08 PM

Quote :

raidmax isn't known for their quality



like 5/10 or worse?

According to the supplied link I would need about 440watts, so unless raidmax is utter junk, I ought to be good for now yes? I just need it to last 3-4 months

Reply to gillhooley
obsidian86   10-06-2009 at 08:53:57 PM

5/10 bout, but dont push it too hard for 3-4 months

Reply to obsidian86
rand_79   10-06-2009 at 09:15:07 PM

most cheap power supplies go up in smoke with a sustained load as low as 60-70%

Hate to see your whole new system in the trash can for cheaping out on the power supply.

IF you are spending 600+ dollars just go get the 80$ power supply too.

Reply to rand_79
Silver CPUs badge JohnnyLucky   10-06-2009 at 09:15:48 PM
Best answer

As obsidian86 already pointed out, Raidmax is not known for quality power supplies. Luckily, your current pc configuration does not require a lot of power, just don't push it to the limit.

For the future, the general rule of thumb is a high quality 500 to 550 watt power supply with sufficient current (amps) on the 12 volt rail(s) can easily power a system with any single video card made. A high quality 700 to 750 watt power supply with sufficient current (amps) on the 12 volt rail(s) can power a system with two video cards operating in dual mode. There are a few exceptions like the new ATI Radeon HD 4770, 5850, and 5870 cards which use a little less power due to their energy efficiency.

Corsair, PC Power & Cooling, and Seasonsic are some of the brands that have a reputation for high quality power supplies that consistently earn high marks in technical reviews. They are reliable, stable, and come with a 5 year warranty. Lately we've been seeing a few other brands offering some high quality units.


Message edited by JohnnyLucky on 10-06-2009 at 09:16:12 PM
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