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Help Choosing PSU

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - Help Choosing PSU

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Building the following system:

P2Q Q9550 - O/C to 3.2Ghz; X48 MB (prob. Asus Rampage Formula or GA-X48-DS5); 4 x 2GB DDR2 800; HD 4870 (future Crossfire?); 3 x 7200 Sata drives; and the rest

I need about 850W to be safe, and I want to have some upgrade capability down the road. I picked the following PSU's, give me your opinions, or let me know if you recommend something different. If I dump the crossfire idea how much power will you recommend? 700W?

Hiper Type M HPU-4M880 – 135
Xigmatec MC NRP-MC851 850W – 140
Rosewill RX850-S-B – 109
RAIDMAX RX-850SS – 95
SIGMA MONSTER SP850C – 105
Athena Power AP-P4ATX85F12EP – 100

I am leaning toward the Hiper 880W because of price/reviews/power. The Xig is a bit more efficient (according to specs) but not by much. Good decision?

Thanks in advance!

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One thing to note with PSUs is that it's the one component you NEVER try to save money on. As such, I suggest going with either Corsair or PC Power & Cooling. Not sure on the reliability of the brands you listed. Hiper were good in the past but don't know about now.

Anyway, a good 750W will keep your system running nicely, even with a future crossfire, maybe not if you cross the 4870 with a 4870X2.

If you really want enough juice for whatever wacky setups, I've heard brilliant things about the 1000W Corsair HX1000. Picking one of those up soon enough myself.

Reply to Kraynor

I would go for either the Antec Signature 850w or Corsair 750w or 1000w.

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Reply to ragsters

Both the Hiper 880w get a "recommended" at jonnygurus site. Good choice.
http://www.jonnyguru.com/modules.p [...] ry&reid=91

Reply to dirtmountain

Thanks for your suggestions guys!

I'm pretty set with the Hiper type m....but....the asus psu calculator is telling me i need at least 1050W of power? How truthfull is this in your opinion? One thing I've noticed is they don't list cards above HD2900, however that shouldn't make too much difference.

So will 880W Hiper be enough? Will it be enough for i7 920 with crossfire and 6X DDR3?

If I have to, I guess I can get something like the Silverstone OP1000-E - $170

Thanks again!!!!

P.S. I'm seriously reconsidering my build for an i7 :pt1cable:

Reply to ukrainetz

the PSU calculator is not accurate. A 4870 crossfired actually ran on my other righ with a 620. Total power consumption isn't drawing more than 480watts. I'm running 4850 on crossfire, Q6600 OC'ed on a 550 watt psu. What you see people telling you that you need a 1k psu is a myth and its overated. A 4870x2 crossfire consumes 680watt at load after calculating the effeciency factor.
One thing you should take note of - all your components are connected through the PSU - invest a little in quality PSUs.

Reply to Zecow

The 880w is fine for your build. Your budget is high enough for an i7 build, i'd sure wait a week or 2 and see more reviews about bugs, drivers, problems etc.

Reply to dirtmountain

the most important part of any computer IS THE POWER SUPPLY,,this is not the time or place to pinch the almighty moneybuck,you are not only buying for now but for who knows how far down the road and how many upgrades,if you buy cheap there is a very real risk of doing serious damage to a high power system, as a general rule you should not settle for nothing less than 80+% efficency at ful load with at least a 3 year warranty..

Reply to dokk2

ragsters wrote :

I would go for either the Antec Signature 850w or Corsair 750w or 1000w.

I agree with the Antec Signature option, more money but excellent.

Read review on johnnyguru, really, check it out!

Reply to mythor20

Im with ZeCow...

800w for a rather simple build? Is way over the top... even with crossfire
http://archive.atomicmpc.com.au/fo [...] c=7&t=9354
Max 255w from crossfired GPU's (not including another other components)

Do away with the dodgey branded 800w PSUs and get a solid excellent quality ~500-650w PSU
http://www.newegg.com/Product/Prod [...] sair%20620

------------------------------ "This thread made me strap on my lolerskates and head for my roflcopter."
Reply to chookman

Like chookman said, get a better quality psu

Antec Signature, Corsair is good

Personally i wouldnt go with any of those
Sigma, Athena, Raidmax Rosewill All crap basically
Xigmatek is the CWT like the 650/750/1000 Corsairs but they cut down on the quality of components so not as good...

Hiper is good, but id still go with a better brand like Antec Signature and Corsair. I currently have used 3 Antec Signatures. I have the 850 and 2 650s. They are very good...a little hot but it handles it all fine

Message edited by Silverion77 on 11-17-2008 at 11:22:02 PM

ukrainetz wrote :

Hiper Type M HPU-4M880 – 135
Xigmatec MC NRP-MC851 850W – 140
Rosewill RX850-S-B – 109
RAIDMAX RX-850SS – 95
SIGMA MONSTER SP850C – 105
Athena Power AP-P4ATX85F12EP – 100

The only psu listed above that I would consider is the Hiper.
All the others are suspect in quality.
All the previous posters have recommended solid alternatives.
I would ask you to consider the following:
PC Power & Cooling 750
After rebates at $99 it is a steal from NewEgg.
More than enough power is available for your needs.

Reply to Newf

or the Corsair 750

Dobriy Vechir!

Corsair! I build pc's for friends, neighbors and girlfriends. I use Corsair exclusively. Corsair psu's are rock solid and very stable. Tom's Hardware just did another review of psu's. Corsair did very very well.

Reply to JohnnyLucky

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