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Triple Sli GTX 580 3gb power supply recommendation. - Page 3

Poll Results: Triple SLI GTX 580 3gb 1000w (keep) or 1200w (upgrade).

 
  • 28% (13)
    Keep the 1000w psu.
  • 71% (33)
    Upgrade to a 1200w psu.
46 Total Votes  
post #21 of 61
Quote:
Originally Posted by wrxxx View Post
how did you do the 3 cards on that though? sli only counts as 2 i thought
Yeah I added another PCI-express card, and some other stuff to compensate for that. I probably shouldn't have linked it at all, but I tried to explain that it wasn't entirely accurate. Just a rough estimate.

I edited my other post to show not to use that info.
Edited by Littlescroll - 7/28/11 at 7:10pm
Hellboy
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Hellboy
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post #22 of 61
id say go for the 1200 and be safe!!!!!
    
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post #23 of 61
If you don't mind bulky cables, go with an Antec TPQ 1200w. It's 199.99 at Fry's and it's a nice PSU. Very quiet and its powering everything on my rig. There's also a video on youtube where someone powered 4x 480's and was pulling 1700w from the wall.
Kill Bill
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Kill Bill
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post #24 of 61
Quote:
Originally Posted by GreekBostonBoy+ View Post
Corsair AX1200

The GTX 580's are power devourers. One would need about 430 Watts. 2x 860 watts. Also you are going to have everything else so that adds about 150 watts.
There is no way a single GTX 580 would need 430W... You'd probably pull around that with a SLI setup.
 
Benching
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Benching
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4x4GB vengeance, 2x4GB predatorX, 2x1GB OCZ DDR2 Intel X25-M 80GB LD PC-V2 SS Phase Change OCN Marksman 
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post #25 of 61
Hmmm...1000W could work if you are a gamer and stock. 1200W is probably what you want if you overclock + add voltage + bench. I would lean towards the 1200W.
Edited by Riou - 7/28/11 at 7:25pm
post #26 of 61
well i know with a single 480 i was pulling about 450 being overclocked 900 core at 1.2
My System
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My System
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I5 2500K AsRock extreme4 p67 GTX 470 SLI 8gb Gskill 
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post #27 of 61
Quote:
Originally Posted by GreekBostonBoy+ View Post
Corsair AX1200

The GTX 580's are power devourers. One would need about 430 Watts. 2x 860 watts. Also you are going to have everything else so that adds about 150 watts.

860
+
150
_____
1010. I don't know about your optical drives because they usually like to consume power. so if you have 1=about 35 watts. and the corsair ax1200 is a great quality psu with a great amount of watts.

PLEASE DON'T SHOW HATRED.

~Alex K.
Clock On!

Where did you pull those numbers from?

Op: you can run 2x 580's in sli on a quality 750 watt psu. Your 1000w psu is enough to power your setup.

edit: op please read over the thread in this link

It is very accurate and done by OCN's most knowledgable PSU expert.
Edited by AliceInChains - 7/28/11 at 7:34pm
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My System
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post #28 of 61
Well I think I'm pretty qualified to comment on this situation. My HX 1000w is not enough to handle my listed rig system. With OC'd CPU and stock GPUs, things run OK on one monitor. However, if I run a mild OC (850 mhz, no voltage increase) on three monitors, the system reboots. I think it might also reboot on three monitors without a GPU OC.

Maybe this is because of the way the PSU distributes load between its two rails. Or because I've got 13 fan running (all low RPM, mostly for 2 rads). At any rate, I've bought an HCP 1200.

Just doesn't make any sense to run with that kind of hardware just to run into power issues when you stress the system.
Big Bertha MKII
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Big Bertha MKII
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post #29 of 61
Thread Starter 
Thanks for the info guys. As you can see from the divided posts, there still some uncertainty but I do trust ocn than most other sites and forums. If I do end up w/ 580s Ill try out my psu first. But my gut says its too close if I start cranking up the clocks. The hcp-1200 is on the top of my list. One limitation is my case has its psu in a unique location so space is limited to max 8" of length psu. I welcome more suggestions.

btw, I participated in Pheadrus 69xx power consumption test and I did hit ~1115W at the Kill-A-Watt (4.8, three 6950/70s @ 950). This was maximum stressing on my rig that will probably happen 0.00001% of the time .

If I do get the 580s, Ill post my kill-a-watt numbers.

btw, my psu specs:

Quote:
Model

Brand
OCZ

Model
OCZ-ZX1000W

Series
ZX Series

Spec

Type
ATX12V v2.2 / EPS12V

Maximum Power
1000W

Fans
1 x 140mm ball-bearing fan

PFC
Active

Main Connector
20+4Pin

+12V Rails
Single

PCI-Express Connector
6 x 6+2-Pin

SATA Power Connector
12

SLI
Ready

CrossFire
Ready

Modular
Yes

Efficiency
92%

Energy-Efficient
80 PLUS GOLD Certified

Over Voltage Protection
Yes

Input Voltage
100 - 240 V

Input Frequency Range
50/60 Hz

Input Current
15A - 8A

Output
+3.3V@30A, +5V@30A, +12V1@83A, -12V@0.6A, +5VSB@3.0A

MTBF
>100,000 Hours

Dimensions
5.91" x 6.89" x 3.39"

Features

Connectors
1 x Main connector (20+4Pin)
2 x 4+4 Pin CPU
9 x Peripheral
12 x SATA
1 x Floppy
6 x PCI-E

Features
1000W Continuous power

ATX12V v2.2 and EPS12V

Compatible with Core i5 & i7

Active PFC

OCZ PowerWhisper Technology

Ultra quite 140mm ball-bearing fan

SLI and CrossFire support

Overvoltage/Overcurrent/Short-Circuit protection

5 year warranty backed by OCZ’s exclusive

PowerSwap replacement program. No more endless return-for-repair loops!

Manufacturer Warranty

Parts
5 years limited

Labor
5 years limited

Edited by wermad - 7/29/11 at 11:35am
post #30 of 61
Well, with GTX 580s at a load like that, overclocked and similarly stressed, you would easily break 1000W DC from the PSU. 1115W at the wall with the HD 6970s wasn't quite 1000W DC.

As JonnyGuru's review shows, the OCZ ZX1000 can definitely hold its own.
http://www.jonnyguru.com/modules.php...Story&reid=238

However, if you get GTX 580s, I again reiterate that you may not want to stress them to the max possible. Gabe's review shows that the OCZ ZX850 behaved poorly when overloaded past 850W:
http://www.hardwaresecrets.com/artic...-Review/1204/8
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