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[Solved] Need advice selecting the appropriate PSU please.

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - [Solved] Need advice selecting the appropriate PSU please.

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Best answer from theAnimal.

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RedJason   08-13-2009 at 07:02:21 AM

Hey guys, I am building a nice little ditty here, and would like your take on how much power I should pump into this puppy to keep her going for 2-3+ years with upgrades.


The system entails:

Intel Core i7 920 Nehalem 2.66GHz LGA 1366 130W Quad-Core Processor Model BX80601920 - Retail

[url=http://www.newegg.ca/Product/ComboDealDetails.aspx?ItemList=Combo.233133]EVGA E758-A1 3-Way SLI (x16/x16/x8) LGA 1366 Intel X58 ATX Intel Motherboard - Retail

OCZ XMP Ready Series 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Low Voltage Desktop Memory Model OCZ3X1600LV6GK - Retail [/url]

Western Digital Caviar Green WD10EADS 1TB SATA 3.0Gb/s 3.5" Internal Hard Drive - OEM

EVGA 896-P3-1255-AR GeForce GTX 260 Core 216 896MB 448-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Retail

COOLER MASTER COSMOS 1000 RC-1000-KSN1-GP Black/ Silver Steel ATX Full Tower Computer Case - Retail


I would like to have enough power to support another GTS 260 core 216 GPU, and 6GB (3*2GB) DDR3 1600 LV RAM. Hell, I may even do a Tri SLI set up in the future if the card goes down in price enough for me to justify the expense.



Thanks in advance for looking at my post, and even more thanks if you provided some advice :D
-RedJason

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Best answer from theAnimal

RedJason wrote :

Amazing, thanks for the replies. I don't think I will ever actually go tri-SLI 260s, but if the price was right down the road, who knows...

So the general consensus is 850W will suit my needs quite swimmingly, and I should probably get rid of the 650W one I was looking to buy originally (which only has 2xPCIe lines as is)?

CORSAIR CMPSU-650TX 650W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Compatible with Core i7 ... - Retail


Yes, TX750/850 or HX750/850 would be better for SLI.

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ct1615   08-13-2009 at 07:24:56 AM

do you have a budget?

there is also a huge difference between powering a single card and tri SLI

great price and plenty of power
http://www.newegg.com/Product/Prod [...] 6817139009

cheaper but has plenty of amps for single card
http://www.newegg.com/Product/Prod [...] 6817341022

------------------------------ Recipient of multi-best answer awards and $3 power ball winner!!
 Reply to ct1615
dirtmountain   08-13-2009 at 07:34:28 AM

I think that 850w Corsair ^from ct1615 is the way you want to go if you're thinking of an eventual 3 way SLI. You're not cutting any corners on your top end system, no reason to go cheesy and cheap on your power supply.

 

*EDIT* Only 4 - PCIe connectors on the Corsair - sorry

Message quoted 1 times
Message edited by dirtmountain on 08-13-2009 at 04:29:23 PM
Reply to dirtmountain
logainofhades   08-13-2009 at 07:51:55 AM

Tri-sli you will want to look @ 1kw+ for PSU. I say the 1kw corsair.

Message quoted 1 times
------------------------------ Antec 900, 750w Corsair, Biostar T-force TA790gx 128m, Phenom II 940 @3.6ghz 8gb G-Skill DDR2 1000, 750gb F1 Samasung, 1tb Seagate ES.2, Sapphire 4870 1gb

 

Reply to logainofhades

theAnimal   08-13-2009 at 11:20:53 AM

dirtmountain wrote :

I think that 850w Corsair ^from ct1615 is the way you want to go if you're thinking of an eventual 3 way SLI. You're not cutting any corners on your top end system, no reason to go cheesy and cheap on your power supply.


The TX is a great PSU, but does not have the required connectors for 3 GTX260s.

------------------------------ *How To Ask For New Build Advice*
HAF 922 | HX750
Rampage2Gene | i7 920 D0 | 6GB Gold 1600 | Hyper 212+
Caviar Black 640GB | HD3870
 Reply to theAnimal
theAnimal   08-13-2009 at 11:22:03 AM

logainofhades wrote :

Tri-sli you will want to look @ 1kw+ for PSU. I say the 1kw corsair.


Not really necessary for 3 55nm GTX260s--they only use ~105W according to xbitlabs.

I would recommend the Corsair HX850.

Message quoted 2 times
------------------------------ *How To Ask For New Build Advice*
HAF 922 | HX750
Rampage2Gene | i7 920 D0 | 6GB Gold 1600 | Hyper 212+
Caviar Black 640GB | HD3870
 Reply to theAnimal
logainofhades   08-13-2009 at 11:50:00 AM

theAnimal wrote :

Not really necessary for 3 55nm GTX260s--they only use ~105W according to xbitlabs.

I would recommend the Corsair HX850.




Yea I was thinking more in line with GTX280's :oops:

------------------------------ Antec 900, 750w Corsair, Biostar T-force TA790gx 128m, Phenom II 940 @3.6ghz 8gb G-Skill DDR2 1000, 750gb F1 Samasung, 1tb Seagate ES.2, Sapphire 4870 1gb

 

Reply to logainofhades

bpogdowz   08-13-2009 at 01:41:20 PM

Don't bother the scaling for tri is horrible. You're better off packing a heavy hitter solo card like GTX 275 or 295 and then maybe double it when the price comes down.

Reply to bpogdowz
Bronze CPUs badge Delluser1   08-13-2009 at 02:01:57 PM

theAnimal wrote :

Not really necessary for 3 55nm GTX260s


Or even 3 65nm versions.
A good quality 850 has no problem with an oc'ed I7 and a pair of GTX295's.

------------------------------ q9650 @ 4.050 | Asus Rampage Formula | 2x2 & 2x1 Corsair Dominators | WD Black 640 x2
EVGA GTX260 Core216 @ 686/1479/1103 | Antec TPN 750

 

Reply to Delluser1

RedJason   08-14-2009 at 04:18:12 AM

Amazing, thanks for the replies. I don't think I will ever actually go tri-SLI 260s, but if the price was right down the road, who knows...

So the general consensus is 850W will suit my needs quite swimmingly, and I should probably get rid of the 650W one I was looking to buy originally (which only has 2xPCIe lines as is)?

CORSAIR CMPSU-650TX 650W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Compatible with Core i7 ... - Retail

Message quoted 1 times
Reply to RedJason
bpogdowz   08-14-2009 at 06:40:53 AM

I've done more upgrades on my PSU than actual motherboard and processor because I was always finding myself short of that wanted FPS. In fact I have two old PSU laying around just from older video cards.

Tip for any noobs reading: throw down the cash for a descent PSU and save yourself the extra cash in the long-running.

Reply to bpogdowz
theAnimal   08-14-2009 at 08:07:51 AM
Best answer

RedJason wrote :

Amazing, thanks for the replies. I don't think I will ever actually go tri-SLI 260s, but if the price was right down the road, who knows...

So the general consensus is 850W will suit my needs quite swimmingly, and I should probably get rid of the 650W one I was looking to buy originally (which only has 2xPCIe lines as is)?

CORSAIR CMPSU-650TX 650W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Compatible with Core i7 ... - Retail


Yes, TX750/850 or HX750/850 would be better for SLI.

------------------------------ *How To Ask For New Build Advice*
HAF 922 | HX750
Rampage2Gene | i7 920 D0 | 6GB Gold 1600 | Hyper 212+
Caviar Black 640GB | HD3870
 Reply to theAnimal
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