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-   -   700w PSU handle SLi GTX260 cards? (http://www.nvnews.net/vbulletin/showthread.php?t=130807)

Dazz 03-29-09 12:27 PM

700w PSU handle SLi GTX260 cards?
 
I am wondering can i get away with 2x GTX 260 (192 Core) Cards with this power supply FSP Group FX700-GLN.

Currently have
QX9650 @ 3.5GHz 1.26v
2x2GB G.Skill PC8000 @ 1GHz
2x Samsung Spinpoint 750GB (RAID-0)
Custom watercooling
2x ASUS DVD-RW
EVGA SC GTX260 (192 cores)

On the box and PSU it says 4 rails of 15A on 12v Rail but their web site says 18A so not sure which to go with.

I can pick up either a EVGA SSC GTX260 (192) or a 1kw Coolermaster PSU and maybe a GPU waterblock.

http://www.fspgroupusa.com/PC_RETAIL...0GLNoutput.jpg

CaptNKILL 03-29-09 12:52 PM

Re: 700w PSU handle SLi GTX260 cards?
 
That's a tough one...

Its a very solid unit, I'm pretty sure its the same exact thing as my OCZ GameXStream 700W, but 2 GTX 260s might be pushing it.

I'm thinking it'll work, but it may be pretty stressful.

john19055 04-02-09 02:14 AM

Re: 700w PSU handle SLi GTX260 cards?
 
I would'nt chance it because you will be pushing that power supply to the limmit .with all the other stuff you have hooked up and draws off the 12v rails.On a 700watt the most it can put out on the 12v rails is 56 amps but that is without running anything on the other rails.It is possible I guess but you are likely to see frezzes and reboots.You could see something worst if it shorts out.You can buy you a good 850watt made by corsair for $139 and even better then that,a PC Power &Cooling 750watt would run two GTX 260's .I have seen plenty of people running two GTX260 of a PC Power &Cooling 750watt and some say they run two GTX 280's but I think that is pushing it.Plus newegg has a good sale on the PC Power & Cooling 750watt power supply.$109.99 with free shipping.
http://www.newegg.com/Product/Produc...82E16817341011

Dazz 04-02-09 05:17 AM

Re: 700w PSU handle SLi GTX260 cards?
 
I thought as much when i use the PSU caluclator it say current draw would be, i guess i might be pushing it somewhat. Altough this is 100% load on the CPU cores and video cards.

Recommended PSU Wattage: * 694W
Amperage (combined)

+3.3V +5V +12V
5.6 A 11.0 A 51.7 A


Minimum UPS rating: 991 VA
Recommended UPS rating: ** 1200 VA

Dazz 04-02-09 05:21 PM

Re: 700w PSU handle SLi GTX260 cards?
 
I did it, i finally killed my PC well the water pump and the power supply that i know of for sure. I though my PC was a little bit on the noisy side so though hey if i replace the fans and bring the rad into the case it will be fine. Been putting it off due to maybe it leaking etec due to have to removing the tubing. Well it gone ok a few leakers here and there which is to be expected but why moving the rad about to get rid of the bubles on of the clips came away poring everywhere. Tided it up but noticed a burnt smell. Was not sure where from but was getting no powerf to anything, i then noticed it tripped the electrics in the house. So turned them back on but kept going off. Found out the PSU was the one doing that. Luckly i still have a very old parts of a system hooked the 350w PSU to get the pump going but would would do nothing. Found out the pump is tripping the PSU.

I am hopping nothing else is dead as i did have the 4pin CPU power cable attached to the motherboard when the PSU blew, the DVD ROM and the back up 20GB IDE HD is working as that is what i am using right now. BUt am hoping my 2x SATA 750GB drives are ok as is the motherboard and CPU. i hope that having the 4 pin connected while shorting the pins did not effect them. So i have ordered a 1kw PSU and a new pump setting me back 166 :(

On the plus side the 1kw PSU should last me a while without needing to worry if i don't have enough power now :o As i had a limited budget (over budget now), so i got a Hi-Power Black 1000W Modular 13.5cm Fan PSU, anyone know what these are like?

So am currently stuck with my Athlon XP 1800+ 1GB SD Ram and a Voodoo 5 5500 AGP card as a work bench system as i did not get round to buying a case for them :(

I am well gutted

Dreamweavernoob 04-11-09 07:02 AM

Re: 700w PSU handle SLi GTX260 cards?
 
Quote:

Originally Posted by Dazz (Post 1974346)
I did it, i finally killed my PC well the water pump and the power supply that i know of for sure. I though my PC was a little bit on the noisy side so though hey if i replace the fans and bring the rad into the case it will be fine. Been putting it off due to maybe it leaking etec due to have to removing the tubing. Well it gone ok a few leakers here and there which is to be expected but why moving the rad about to get rid of the bubles on of the clips came away poring everywhere. Tided it up but noticed a burnt smell. Was not sure where from but was getting no powerf to anything, i then noticed it tripped the electrics in the house. So turned them back on but kept going off. Found out the PSU was the one doing that. Luckly i still have a very old parts of a system hooked the 350w PSU to get the pump going but would would do nothing. Found out the pump is tripping the PSU.

I am hopping nothing else is dead as i did have the 4pin CPU power cable attached to the motherboard when the PSU blew, the DVD ROM and the back up 20GB IDE HD is working as that is what i am using right now. BUt am hoping my 2x SATA 750GB drives are ok as is the motherboard and CPU. i hope that having the 4 pin connected while shorting the pins did not effect them. So i have ordered a 1kw PSU and a new pump setting me back 166 :(

On the plus side the 1kw PSU should last me a while without needing to worry if i don't have enough power now :o As i had a limited budget (over budget now), so i got a Hi-Power Black 1000W Modular 13.5cm Fan PSU, anyone know what these are like?

So am currently stuck with my Athlon XP 1800+ 1GB SD Ram and a Voodoo 5 5500 AGP card as a work bench system as i did not get round to buying a case for them :(

I am well gutted

I run a GTX 295 Quad core setup with a 650w corsair just fine :)

Never heard of hi-power personally which puts it into the dodgy books for me instantly. Knowing me though, everyone in the world has, so dont pay me any attention.

Revs 04-11-09 07:41 AM

Re: 700w PSU handle SLi GTX260 cards?
 
Oh **** Dazz, that sucks :(. I've had a pump piss coolant out on my mobo, too. Luckily it was fine after a quick shower and a dry :p. Still going strong. Hope you get it sorted ;).

Dazz 04-12-09 08:10 AM

Re: 700w PSU handle SLi GTX260 cards?
 
I think my pump is fine it was not priming on my OEM 350w PSU which lead me to think it was dead, got my new one and wouldn't prime on that either but worked fine on the 1kw PSU. Apart from the PSU everything is fine :)

Medion 04-12-09 02:20 PM

Re: 700w PSU handle SLi GTX260 cards?
 
Needing a ridiculously high powered PSU is a myth. There are actually morons out there who think that if you need a 450W PSU for 1 GPU, then you must need a 900W for SLI. They tend to forget that the power rating takes into account the entire system.

A solid, well-specced 600W PSU will handle 2xGT260 in SLI, depending on what else is in that system.

Bah! 04-12-09 05:12 PM

Re: 700w PSU handle SLi GTX260 cards?
 
Quote:

Originally Posted by Medion (Post 1981548)
Needing a ridiculously high powered PSU is a myth. There are actually morons out there who think that if you need a 450W PSU for 1 GPU, then you must need a 900W for SLI. They tend to forget that the power rating takes into account the entire system.

A solid, well-specced 600W PSU will handle 2xGT260 in SLI, depending on what else is in that system.


Yeah, the overpowered PSU advice is probably my second biggest pet peeve, after the "humans can only see 30 fps" argument.

Two things are more important that wattage...quality and amps. You wouldn't believe the amount of people telling me to buy 800-1000w PSUs that were worse than the 700w PSU that i ended up buying.

Oh, btw, this OCZ 700w PSU that i bought for my e6750/8800GT system ran just fine with my i7920/260SSC system and is still running fine with my step-up 295. I have no doubt it would run 260s in SLi without a hitch.

XDanger 04-12-09 06:11 PM

Re: 700w PSU handle SLi GTX260 cards?
 
Quote:

Originally Posted by Bah! (Post 1981630)
Yeah, the overpowered PSU advice is probably my second biggest pet peeve, after the "humans can only see 30 fps" argument.

Show me that argument so I can lol

akaik 25 is the minimum needed to give the illusion of animation but 30 as a maximum possible percievable frame rate !!!!:headexplode:

JasonPC 04-12-09 08:48 PM

Re: 700w PSU handle SLi GTX260 cards?
 
I've heard it varies for people. I do believe I can tell the difference between 30 fps and something higher. Now 40 fps vs something else probably not.


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