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Tom's Hardware > Forum > Systems > New Build > [Solved] PSU?

[Solved] PSU?

Forum Systems : New Build [Solved] PSU?

Okay I am still not too sure what PSU to get and my budget is super duper tight..
I wanted to get a deathadder mouse or maybe I shouldnt it all depending on what I have left ..
So here goes..

Intel i5-2500k

Sapphire Radeon HD 6870 DDR5 1GB x2 (Crossfire)

PC3 1600 CL9 Corsair Vengeance 4x2 (8GB) Ram

Seagate 1TB Sata3

LG 24x DVDRW SATA - OEM

Cooler Master Elite 430

Gigabyte Z68MA-D2H-B3

Thats the current spec of my Custom PC and I left about 100$ for my PSU so I am not too sure what to get..
Please recommend me some PSU around that price thanks!

Reply to wiz4aoe179

Well a Corsair 650 watt should be hefty enough for your needs. I recommend http://www.newegg.com/Product/Prod [...] 50&x=0&y=0

I use a TX 750 with SLI and no issues there. they are all good PSU's

------------------------------ MY RIG: CPU:AMD Phenom II 980/GPU: EVGA GTX 670/Mobo:AM3+ 990FX Sabertooth/Ram: 8 Gigs of Kingston Hyper X/PSU: Corsair TX 750/CPU Cooler: Corsair A70/ Case: CM Storm Trooper Full Tower
Reply to Rockdpm

Is 650w enough? I used some watt calculator and it stat 700w or something ><

And I don't need a crossfire certified power supply I am using crossfire?

Can anyone explain to me how this works the crossfire certified thingy kinda confused right now ><

Reply to wiz4aoe179

After looking at some calculators, you should need around 650 W for this build.
Even though I'd go with 700W to be safe and allow you to maybe add some more things in the future.

For around 100$ you could get:

- Corsair-Gaming Series -700-Watt-Certified (http://www.amazon.com/Corsair-700-Watt-Certified-Compatible-Platforms/dp/B003XT1QAI/ref=sr_1_1?ie=UTF8&qid=1329138678&sr=8-1)

-Thermaltake TR2 Ceritfied ( http://www.amazon.com/Thermaltake- [...] 804&sr=1-4 )

-OCZ ModXStream Pro 700W Modular (http://www.amazon.com/OCZ-ModXStream-Modular-Performance-compatible/dp/B001IZ7MHU/ref=sr_1_13?s=pc&ie=UTF8&qid=1329139273&sr=1-13)

All of those are Dual GPU compatible and will work perfectly with your build.

Message edited by Fes69 on 02-13-2012 at 02:23:29 PM

Reply to Fes69

Reply to wiz4aoe179

Best answer

Firstly you need a PSU with four PCIe connectors, which the Corsair 650TXV2, 650TXM, GS700 and OCZ ModXStream Pro 700W do not have.

Crossfire/SLI certification is as much a marketing scheme as it is a scheme to discover which PSUs work with which combination of graphics cards.
You also have to bear in mind that a PSU might not be certified because it wasn't tested.

http://www.anandtech.com/show/4061 [...] hd-6950/24
Shows a system with an i7-920 (more power hungry than even an overclocked i5-2500K) and two 6870s using 481W under Furmark (which is an unrealistic load). That 481 number was taken at the wall as well, so 10-20% can be taken off to get an idea what their system actually drew. ~432W as a worst case.

A 430W load would only stress a good 650W PSU to ~65%, which is not going to happen that often unless you run power hungry programs very often. And even if it does a good 650W is not going to have any problems with that.
A good 650W PSU is designed to provide 650W of power in temperatures of 40C (or above). In a well ventilated system/a system with the PSU in a separate thermal zone to the CPU/GPU (ie bottom mounted) the temperature is unlikely to reach 40C (unless you live in a hot country/region), which means that it can deliver more than 650W at lower temperatures.
People always complain about shortening the life span of PSUs when stressed more than 50%, but a well designed, modern unit is designed to cope with heat so I don't see why the useful lifespan of the unit would be significantly/noticeably shortened.

XFX Pro 750W Core Edition 80Plus Bronze $100 ($25 rebate)
http://us.ncix.com/products/?sku=5 [...] acture=XFX
The 650W version also has four PCIe connectors and is a good price on both newegg and NCIX.com.

This is what I would choose for $100:
Rosewill Capstone 650W 80Plus Gold
http://www.newegg.com/Product/Prod [...] 6817182071
Because it will be quiet even under maximum load.

Reply to Silvune

Do you have other recommendations because I cant find those in my near by stores ><..
And importing from other countries will have super expensive delivery charge for me.

Edit: Semi Modular/Modular if possible ><. Dont want it to look too messy..
will to go up just by a bit for it.

Message edited by wiz4aoe179 on 02-13-2012 at 06:04:09 PM

Reply to wiz4aoe179

What country are you in?

How about Antec Truepower New TPN-650W 80Plus Bronze Modular.

Reply to Silvune

http://www.amd.com/us/products/des [...] iew.aspx#3

500 Watt or greater power supply with two 75W 6-pin PCI Express® power connectors recommended (600 Watt and four 6-pin connectors for AMD CrossFireX™ technology in dual mode)

I'd get a 650 watter or bigger as there's no real cost difference between the good 650's and anything smaller.

Can pick something off this list (clock details to see what cards are supported):

http://support.amd.com/us/certifie [...] sting.aspx

Antec HCG-750
Antec HCG-750 PLus
Corsair TX750 V2 - http://support.amd.com/us/certifie [...] x?item=548
Seasonic X-760

Also:

http://www.newegg.com/Product/Prod [...] 6817207014
http://www.newegg.com/Product/Prod [...] 6817207015

------------------------------ If a man speaks in the forest and no woman hears him, is he still wrong ?
Reply to JackNaylorPE

Silvune wrote :

What country are you in?

How about Antec Truepower New TPN-650W 80Plus Bronze Modular.

I am from singapore actually..
And I think I will just keep asking for recommendations. Can't seems to find the one
that the shop have maybe it just the shop..
I guess I have to head down to other shop to check if they have those powersupply.

Thanks for help !

EDIT: OCZ ModXtreme OCZ700MXSP is this powersupply crossfire-able etc and isit good?
Because I doesnt have a Crossfire ready sign on it ><

Message edited by wiz4aoe179 on 02-13-2012 at 08:28:40 PM

Reply to wiz4aoe179

The ModXStream Pro 700W only has two PCIe connectors. And is not particularly good.

Reply to Silvune

Silvune wrote :

The ModXStream Pro 700W only has two PCIe connectors. And is not particularly good.

How many PCIe before its good? and For crossfire the other dude said I need 4x 6-pin connector. Normally those 6pin connector are used for what?

Reply to wiz4aoe179

Silvune wrote :

The ModXStream Pro 700W only has two PCIe connectors. And is not particularly good.

How many PCIe before its good? and For crossfire the other dude said I need 4x 6-pin connector. Normally those 6pin connector are used for what?

Message quoted 1 times

Reply to wiz4aoe179

750W corsair with additional 15% off total~$80 after rebate

http://www.newegg.com/Product/Prod [...] 6817139021

can't beat that!!!

Reply to maxinexus

That is good but I dont have the price for it for now it might be over my budget..
And its not even semi modular which make me want to consider it 1st..

Reply to wiz4aoe179

wiz4aoe179 wrote :

How many PCIe before its good? and For crossfire the other dude said I need 4x 6-pin connector. Normally those 6pin connector are used for what?

6pin and PCIe are used to refer to the same thing. And they are used to power graphics cards.
I'm struggling to think of other widely available 650/750 watt semi-modular PSUs with the necessary connectors.

Message quoted 1 times

Reply to Silvune

Silvune wrote :

Icic.. If you find it please tell me!

Reply to wiz4aoe179

I know this is a little off topic, but have you considered the G400 Mouse? It could save you about 20 bucks, and I personally find it more comfortable.

Reply to LtDan

CORSAIR Professional Series HX650
XFX PRO750W XXX Edition Semi-Modular 80Plus Silver 750w
OCZ 750W Fatal1ty Series Semi-Modular PSU
Antec EarthWatts Series EA-750 Green 750W ATX12V v2.3

Which is better or there is better recommendations
and will it fit into my Coolmaster Elite 430 case?

Reply to wiz4aoe179

The Corsair HX 650 or the XFX Pro 750W XXX Edition are the best of those four. I suppose the XFX just edges it with slightly higher efficiency, larger fan, more power.
Followed by Antec Earthwatts EA-750 Green, but it is not modular.

Reply to Silvune

Thx for all the help guys.. But I those that I mention cannot be found in most of the shop.............
So I gave up on anymore research and decide to go with
FSP Group AURUM GOLD 700 (AU-700) 700W.. non modular tho.. well it exceed my budget for abit but it looks good!

http://www.newegg.com/Product/Prod [...] 6817104099

Maybe I might ask for abit more money for the 750w modular version xD

http://www.amazon.com/FSP-Aurum-CM [...] B005D5LZEW

Thanks for all your help again guys ~

Reply to wiz4aoe179