Tom's Hardware > Forum > Graphic & Displays > Graphics Cards > 600 Watt psu for GTX 275 2-way SLI
Page:    Previous 1 2 Next Bottom Search this thread
Word :    Username :           
 

Hello
I want to buy a GTX 275 card and after sometime I want to SLI.
Is the FSP EPSILON 600Watt psu can support these cards knowing that Iam going to oc them ?
My system is:
E8400 @ 4.0Ghz 1.4V
2x2GB DDR2 800 Mhz Kingston
W.D 500GB SATA HDD.
Pioneer DVD-RW DVR-216D
OCZ VENDETTA 2 CPU COOLER.
Please answer !
Thanks :)

Sponsored Links
Register or log in to remove.

Well, according to NVidia you need at least a 550 W power supply for your system with one card.

http://www.nvidia.com/object/produ [...] 75_us.html

If you are going to SLI and overclock in the future I would recommend getting a little bit more powerful PSU. Also, remember that the PSU is something you don't want to go cheap on because you can use the same one on multiple builds and configurations.

Reply to veesofnaught
- 0 +

Will my system lag because of this psu ?

Message quoted 1 times
Message edited by Alaa on 04-05-2009 at 12:02:18 AM
Reply to Alaa
- 0 +

If yes what psu you recommend ?

Reply to Alaa

Alaa wrote :

Will this psu bottleneck my system ?


Wrong use of the word bottleneck.

Reply to michaelmk86
- -1 +

by bottleneck he means wont even start up yes well most likely esp after you oced your cpu putting more stress on the psu! Even a super high quality 600w psu would not run 2 275 maybe 2 GTS 250's. Anyways you don't want your psu always near max load you want your psu near 40-50% load for best efficiency also the more load the more heat and the more you'll wear out your psu faster.


Message edited by IzzyCraft on 04-05-2009 at 12:01:45 AM
Reply to IzzyCraft

You should be looking at a Corsair 850W. They run around $135. Or you can get the PCP&C equivalent for $250 and feel sore in the shorts afterwards.


Message edited by spathotan on 04-05-2009 at 12:03:36 AM
------------------------------ http://valid.canardpc.com/cache/banner/547515.png
Intel Xeon X3370 @3.6ghz Under Enzotech Extreme-X,EVGA GTX 285 SC, 4GB Mushkin Ascent eVCI @ 1066mhz, Gigabyte P45 UD3P
Reply to spathotan

With that massive overclock and those two beast cards you're gonna really be pulling some juice
I agree with spathotan ATLEAST 800 imo

Reply to Soul_keeper
- 0 +

Will a 700W Cooler Master or Thermaltake Toughpower be enough or I should go for the Corsair 850W ?

Reply to Alaa

Considering the price difference....get the Corsair.

------------------------------ http://valid.canardpc.com/cache/banner/547515.png
Intel Xeon X3370 @3.6ghz Under Enzotech Extreme-X,EVGA GTX 285 SC, 4GB Mushkin Ascent eVCI @ 1066mhz, Gigabyte P45 UD3P
Reply to spathotan
- 0 +

Unfortionatly Corsair is not availabe in Lebanon :(.
There is a Point of View Black Diamond 850W modular PSU which is relatively cheap wrt TT or Cooler Master.
What you guys recommend ?

Reply to Alaa

I'd go for the coolermaster real power pro 850 then.

------------------------------ P965/Q6700@3.2 8MB HD4850 OC Edition
4GB Corsair XMS 800
Vista64/Win7
Fatality 550w/Antec 300
Reply to zipzoomflyhigh

2- GTX275s in SLI will use about 300 watts at load, an overclocked to 4.0GHz E8400 system without GPUs will also use about 300 watts at load. A minimum of 750w power supply would be required to not overstress your PSU, 850w is even better. I agree with the zipman that the 850w Coolermaster would be a good choice.

http://forums.atomicmpc.com.au/index.php?showtopic=264

Reply to dirtmountain

i7 920 @ 3.8
6 HHDs
2 optical
2 GTX 295
Raid card
X-Fi
1 750 Silencer

An 850 would be like shooting a duck with a Bazooka

Reply to Snuffles

Youre walking on thin ice Snuffles with 750W. Dont mislead the OP.

------------------------------ http://valid.canardpc.com/cache/banner/547515.png
Intel Xeon X3370 @3.6ghz Under Enzotech Extreme-X,EVGA GTX 285 SC, 4GB Mushkin Ascent eVCI @ 1066mhz, Gigabyte P45 UD3P
Reply to spathotan

Snuffles wrote :

i7 920 @ 3.8
6 HHDs
2 optical
2 GTX 295
Raid card
X-Fi
1 750 Silencer

An 850 would be like shooting a duck with a Bazooka




^ What?
2 GTX295? So that's 4 GTX260s?

And a OCed I7?
With 6 HDDs and 2 Opticals and other stuff?


All of that on a 750 watt PSU? Something smells fishy...

4 power hungry GTX260 GPUs, a heavily OCed quad core, and multiple HDDs and drives requires a something along the lines of a 1200watt PSU.

Message quoted 1 times
Message edited by BlueScreenDeath on 04-05-2009 at 03:59:26 AM
Reply to BlueScreenDeath

spathotan wrote :

Youre walking on thin ice Snuffles with 750W. Dont mislead the OP.



I call shannegins on his post. If he really has all that on a 750watt PSU, then his computer should've exploded the moment he turned it on.

Message quoted 1 times
Message edited by BlueScreenDeath on 04-05-2009 at 04:01:46 AM
Reply to BlueScreenDeath

BlueScreenDeath wrote :

I call shannegins on his post. If he really has all that on a 750watt PSU, then his computer should've exploded the moment he turned it on.

 

Agree. The Two GTX 295's alone will need a solid 700W. Hell, a system with a single GTX 295 will want 650W+


Message edited by spathotan on 04-05-2009 at 04:10:28 AM
------------------------------ http://valid.canardpc.com/cache/banner/547515.png
Intel Xeon X3370 @3.6ghz Under Enzotech Extreme-X,EVGA GTX 285 SC, 4GB Mushkin Ascent eVCI @ 1066mhz, Gigabyte P45 UD3P
Reply to spathotan
- 0 +

Not nearly enough. Get the Ultra 100 watt modular PSU... it's AWESOME!!!! Will provide adequate power for years to come.

Reply to mamw93
- 0 +

Oc'd E8400 to 4.0GHz will use 300 watt ???!!!!
I dont think so dirtmountain, can you explain please ?

Reply to Alaa
- 0 +

Yes it should work but you might be limited to high end overclocks.

Reply to invisik

Snuffles wrote :

i7 920 @ 3.8
6 HHDs
2 optical
2 GTX 295
Raid card
X-Fi
1 750 Silencer

An 850 would be like shooting a duck with a Bazooka



Ummm more like shooting an Abrams tank with birdshot.
Not to mention, what if he upgrades his video cards down the road, you want him to buy yet another power supply? :pfff:

------------------------------ P965/Q6700@3.2 8MB HD4850 OC Edition
4GB Corsair XMS 800
Vista64/Win7
Fatality 550w/Antec 300
Reply to zipzoomflyhigh

I meant your entire basic system without the graphic card will use about 300w at load, with the E8400 at 4.0/1.4v . That includes your HD, burner, RAM, cooler, case fans and any peripherals.

Reply to dirtmountain

spathotan wrote :

Youre walking on thin ice Snuffles with 750W. Dont mislead the OP.




Not misleading him at all.

Ive witnessed 2 systems running PC Pow and Cool 750 silencer with 2 GTX295.

To be honest I was as shocked as you all are, but no need to call me a LIAR. :fou:


Reply to Snuffles

zipzoomflyhigh wrote :

Ummm more like shooting an Abrams tank with birdshot.
Not to mention, what if he upgrades his video cards down the road, you want him to buy yet another power supply? :pfff:




What could he possibly upgrade to with Die shrinks lowering the power needs of the latest and greatest GPUs. The only 2 cards more power hungry are the ATI 4870 x2s.

Message quoted 1 times
Message edited by Snuffles on 04-05-2009 at 10:08:10 PM
Reply to Snuffles

Snuffles wrote :

Not misleading him at all.

Ive witnessed 2 systems running PC Pow and Cool 750 silencer with 2 GTX295.

To be honest I was as shocked as you all are, but no need to call me a LIAR. :fou:



Where exactly did you witness this? Youtube?

3 possibilities
1. It really wasn't a 750 watt PSU...you confused it with something else
2. That guy was lying to you.
3. That guy's PC has already died.


According to newegg, the 750watt PC& Cool silencer PSU has 60amps on a single rail, while a single GTX295 requires a minimum of 46 amps alone.

So two GTX295s would require 92 amps. And that's the graphics card alone - not even including the quad core i7 with significant overclock. And running 6 HDDs and multiple optical drives?

All of that sounds like complete bullsh*t.

Message quoted 1 times
Message edited by BlueScreenDeath on 04-05-2009 at 10:17:28 PM
Reply to BlueScreenDeath

Agreed you couldnt use it for Benchmarking but not too many ppl will ever use the full wattage caps in their systems. Running any video game will use no more than 2 cores as for the 2 GTX 295s nothing can dent them.

Reply to Snuffles
- 0 +

Iam really confused now :(
Somesone says that a 750W psu runs a monster power hungry system, and others say that the 600W psu cannot support my rig.
Can I have a clear and final answer with numbers please ?

Reply to Alaa

It's unlikely snuffles computer wont turn off under high loads unless hes runs nothing but 1 stick of ram 1 hdd underclocked cpu and under clocked 295's lol i know pc power and cooling 750w is a great psu but it can't produce power it doesn't have. He should be running a 1000w system for 2 295 min.
Maybe he has vvthisvv and is not telling us
http://www.hexus.net/content/item.php?item=6221

You need an 750w psu min but it would have to be very high quality with great amps for 2 275's but it's highly recommended you get a good buffer like 850w psu


Message edited by IzzyCraft on 04-05-2009 at 10:58:28 PM
Reply to IzzyCraft

Alaa wrote :

Iam really confused now :(
Somesone says that a 750W psu runs a monster power hungry system, and others say that the 600W psu cannot support my rig.
Can I have a clear and final answer with numbers please ?



http://www.tomshardware.com/review [...] ,2112.html

goto the power usage page

There are a lot of ppl out there that would throw a 1200w PSU at everything (and me) and call it a day.

An 850 would work well in your system with 1 or 2 GTX275s. Just be sure it is a quality PSU and keep your ambient temps down as much as possible.

Reply to Snuffles
- 0 +

Ok now I know that I need a 750w+ power supply for my pc.
Please can anyone tell me if the Point of View Black Diamond 850W is a good quality psu because there is no reviews at all about it.

Reply to Alaa

Never heard of that brand Alaa. Just be sure to get something LARGER than 750w. We dont want to see you comming back here in a month telling us your system shuts down while playing games.

------------------------------ http://valid.canardpc.com/cache/banner/547515.png
Intel Xeon X3370 @3.6ghz Under Enzotech Extreme-X,EVGA GTX 285 SC, 4GB Mushkin Ascent eVCI @ 1066mhz, Gigabyte P45 UD3P
Reply to spathotan
- 0 +

Look at my rig im running it only with 500w when 600+watt is recommended.

Reply to invisik

Im thinking it gets hot in Lebanon, and stressing your psu wouldnt be wise. Get a 850 watt. One that has a good 60 amps on the 12 v rail

------------------------------ I went drifting, thru the capitols of tin, where men cant walk and cant freely talk, and sons turn their fathers in
Reply to jaydeejohn

Snuffles wrote :

What could he possibly upgrade to with Die shrinks lowering the power needs of the latest and greatest GPUs. The only 2 cards more power hungry are the ATI 4870 x2s.



Every generation of new cards uses more power, Hello, is anybody in there??
So your telling me the upcoming 5800X2 will use less power than the 4800X2's huh? How bout the quad gpu ATI is working on, thats gonna use less power too huh? LOL
The 7800GT uses more power than the 6800GT. The 8800GT uses more power than the 7800GT. The 4800 series uses more power than the 3800 series. The 4870x2 uses more power than the 4870. The GTX280 uses more power than the GTX260, the GTX295 uses more power than the GTX285, are you starting to see a trend yet smart guy?

Oh and by the way, just cause you've "witnessed" some moron under powering his system doesnt mean its the right thing to do, so stop misleading the OP. I've witnessed a lot of idiots doing a lot of things.

Power supplies are inneficient when they are pressed over 50-60%.


Message edited by zipzoomflyhigh on 04-06-2009 at 12:37:00 PM
------------------------------ P965/Q6700@3.2 8MB HD4850 OC Edition
4GB Corsair XMS 800
Vista64/Win7
Fatality 550w/Antec 300
Reply to zipzoomflyhigh

Quote :


Power supplies are inneficient when they are pressed over 50-60%.



I've been trying to find some factual basis to your assertion and so far I've come up empty handed. Do you have a link?

BlueScreenDeath wrote :


So two GTX295s would require 92 amps.



That would be 1104w on 12v rails! I think its safe to assume that the example you provided is a manufacturer estimation on high load with other computer components taken into consideration.

Reply to Anonymous

invisik wrote :

Look at my rig im running it only with 500w when 600+watt is recommended.




Thanks for pointing out your ignorance, we'll be sure not to take your suggestions into consideration in the future.

------------------------------ P965/Q6700@3.2 8MB HD4850 OC Edition
4GB Corsair XMS 800
Vista64/Win7
Fatality 550w/Antec 300
Reply to zipzoomflyhigh

Quote :

I've been trying to find some factual basis to your assertion and so far I've come up empty handed. Do you have a link?



What I mean was they produce more heat and have a shorter life span.

------------------------------ P965/Q6700@3.2 8MB HD4850 OC Edition
4GB Corsair XMS 800
Vista64/Win7
Fatality 550w/Antec 300
Reply to zipzoomflyhigh

Anonymous wrote :

Quote :


Power supplies are inneficient when they are pressed over 50-60%.



I've been trying to find some factual basis to your assertion and so far I've come up empty handed. Do you have a link?



That would be 1104w on 12v rails! I think its safe to assume that the example you provided is a manufacturer estimation on high load with other computer components taken into consideration.



It is a bit of an exaggeration on the manufacturer'ers part, but it's not that far off when you consider 2x 295s is basically 4 GTX260s. And GTX260s are part of the high end lineup.


Message edited by BlueScreenDeath on 04-06-2009 at 03:46:04 PM
Reply to BlueScreenDeath

This is for Zipzoom, if he takes the time to read it.

http://www.tomshardware.com/review [...] 123-9.html


To the OP- alaa, I'm sorry all this went down on your thread.

I think Tagan builds Point of Views PSUs, so I would assume (the only info i could find was in French) the 850 Black Diamond you are looking at is fine for your purposes.


Message edited by Snuffles on 04-07-2009 at 12:41:41 AM
Reply to Snuffles

Already read that, but thanks anyways.
Just because the next gen will be more efficient, doesnt mean it will use less power. I'll be sure to PM you when the new 5800X2's arrive. K?

------------------------------ P965/Q6700@3.2 8MB HD4850 OC Edition
4GB Corsair XMS 800
Vista64/Win7
Fatality 550w/Antec 300
Reply to zipzoomflyhigh
- 0 +

The problem is that in Lebanon the prices of power supplies are too expensive, for example the Thermaltake ToughPower 750W PSU is 320$ :(
So if anyone can help me by shipping the Corsair TX 850W psu to Lebanon I'll be very grateful.
Thank you all.

Reply to Alaa
------------------------------ http://valid.canardpc.com/cache/banner/547515.png
Intel Xeon X3370 @3.6ghz Under Enzotech Extreme-X,EVGA GTX 285 SC, 4GB Mushkin Ascent eVCI @ 1066mhz, Gigabyte P45 UD3P
Reply to spathotan

Buy a plane ticket, fly to the US, head over to the newegg factory distribution center, get yourself a couple of GTX275s, and fly back to Lebanon. :D

Reply to BlueScreenDeath

zipzoomflyhigh wrote :

Already read that, but thanks anyways.
Just because the next gen will be more efficient, doesnt mean it will use less power. I'll be sure to PM you when the new 5800X2's arrive. K?




Seems like you didnt even look at the pictures.

Anywhooo, wait and see what happens when the Nvidia guys stick a new sticker on it and shrink the Dies, same performance less Wattage.


alaa - wish i could help with the shipping and selection


Message edited by Snuffles on 04-08-2009 at 04:03:58 AM
Reply to Snuffles
- 0 +


Unfortionatly no, even Tigerdirect or newegg dont ship to Lebanon.

Reply to Alaa

Alaa wrote :

Unfortionatly no, even Tigerdirect or newegg dont ship to Lebanon.



Maybe you should check out some Chinese or British sites, they might ship to you.

------------------------------ http://valid.canardpc.com/cache/banner/547515.png
Intel Xeon X3370 @3.6ghz Under Enzotech Extreme-X,EVGA GTX 285 SC, 4GB Mushkin Ascent eVCI @ 1066mhz, Gigabyte P45 UD3P
Reply to spathotan

One other option would be to use an old psu with a connect, and make some changes to your case for the dongle/connector

------------------------------ I went drifting, thru the capitols of tin, where men cant walk and cant freely talk, and sons turn their fathers in
Reply to jaydeejohn

BlueScreenDeath wrote :

^ What?
2 GTX295? So that's 4 GTX260s?

And a OCed I7?
With 6 HDDs and 2 Opticals and other stuff?


All of that on a 750 watt PSU? Something smells fishy...

4 power hungry GTX260 GPUs, a heavily OCed quad core, and multiple HDDs and drives requires a something along the lines of a 1200watt PSU.






Not true!

Plug all the values in this PSU calculator and you'll find out a 700W PSU would be more then enough to push those cards.


http://www.thermaltake.outervision.com/



I've got 2 GTX 275's with a Quad 9400 Yorkie pumped to 3.8GHz, 4 X 2GB sticks of DDR3 1800, 6 X 120MM fans, 3 HDD's,
2 cold cathode tubes and a Silverstone 700W PSU has been running w/o a problem.


Reply to borisbulldog
- 0 +

thanks borisbulldog.
You are the first who mentioned the PSU calculator that I built my thoughts on.
I got 515W recommended psu wattage for my system with the 2 GTX 275 at peak load.
So a high quality 600W psu should do the job.
Any replies ?

Reply to Alaa
Previous
1 2
Tom's Hardware > Forum > Graphic & Displays > Graphics Cards > 600 Watt psu for GTX 275 2-way SLI
Go to:

There are 1267 identified and unidentified users. To see the list of identified users, Click here.

Sponsored links
  • Ask the community now
  • Publish
Ad
They won a badge
Join us in greeting them