Sign in with
Sign up | Sign in
Your question

600 Watt psu for GTX 275 2-way SLI

Tags:
  • Graphics Cards
  • Gtx
  • SLI
  • Graphics
  • Product
Last response: in Graphics & Displays
Share
April 4, 2009 9:41:32 PM

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 :) 

More about : 600 watt psu gtx 275 sli

April 4, 2009 9:48:39 PM

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

http://www.nvidia.com/object/product_geforce_gtx_275_us...

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.
April 4, 2009 9:51:38 PM

Will my system lag because of this psu ?
April 4, 2009 9:52:42 PM

If yes what psu you recommend ?
April 4, 2009 9:58:24 PM

alaa said:
Will this psu bottleneck my system ?

Wrong use of the word bottleneck.
April 4, 2009 10:01:03 PM

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.
April 4, 2009 10:02:15 PM

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.
April 4, 2009 10:18:38 PM

With that massive overclock and those two beast cards you're gonna really be pulling some juice
I agree with spathotan ATLEAST 800 imo
April 4, 2009 10:21:37 PM

Will a 700W Cooler Master or Thermaltake Toughpower be enough or I should go for the Corsair 850W ?
April 4, 2009 10:28:18 PM

Considering the price difference....get the Corsair.
April 4, 2009 10:33:50 PM

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 ?
a b U Graphics card
April 5, 2009 12:30:16 AM

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
April 5, 2009 1:39:12 AM

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
April 5, 2009 1:56:27 AM

Youre walking on thin ice Snuffles with 750W. Dont mislead the OP.
a b U Graphics card
April 5, 2009 1:58:03 AM

Snuffles said:
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.
a b U Graphics card
April 5, 2009 2:00:06 AM

spathotan said:
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.
April 5, 2009 2:09:51 AM

Bluescreendeath said:
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+
April 5, 2009 2:12:17 AM

Not nearly enough. Get the Ultra 100 watt modular PSU... it's AWESOME!!!! Will provide adequate power for years to come.
April 5, 2009 12:01:25 PM

Oc'd E8400 to 4.0GHz will use 300 watt ???!!!!
I dont think so dirtmountain, can you explain please ?
a b U Graphics card
April 5, 2009 2:04:03 PM

Yes it should work but you might be limited to high end overclocks.
a b U Graphics card
April 5, 2009 3:43:50 PM

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.
April 5, 2009 7:59:06 PM

spathotan said:
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: 


April 5, 2009 8:03:49 PM

Quote:
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.
a b U Graphics card
April 5, 2009 8:17:01 PM

Snuffles said:
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.
April 5, 2009 8:30:19 PM

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.
April 5, 2009 8:46:18 PM

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 ?
April 5, 2009 8:55:51 PM

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
April 5, 2009 8:58:14 PM

alaa said:
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/reviews/core-i7-overclock,2...

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.

April 5, 2009 9:15:26 PM

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.
April 6, 2009 1:48:52 AM

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.
a b U Graphics card
April 6, 2009 2:16:27 AM

Look at my rig im running it only with 500w when 600+watt is recommended.
a b U Graphics card
April 6, 2009 2:28:00 AM

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
Anonymous
a b U Graphics card
April 6, 2009 11:38:24 AM

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 said:

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.
a b U Graphics card
April 6, 2009 1:44:38 PM

Quote:
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.

April 6, 2009 10:26:52 PM

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

http://www.tomshardware.com/reviews/geforce-gtx-295,212...


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.
April 7, 2009 2:05:32 PM

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.
a b U Graphics card
April 7, 2009 9:38:57 PM

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 
April 7, 2009 10:58:06 PM

Quote:
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
April 8, 2009 9:12:55 PM

alaa said:
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.
a b U Graphics card
April 8, 2009 9:31:59 PM

One other option would be to use an old psu with a connect, and make some changes to your case for the dongle/connector
April 17, 2009 10:35:48 PM

Bluescreendeath said:
^ 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.


April 17, 2009 11:21:08 PM

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 ?
April 17, 2009 11:36:54 PM

alaa said:
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 ?



You'll pay the same for a 700W and I would go with the higher wattage to be on the safe side.

Make sure you get an SLI capable unit and modular would let you only use the cables you need.

Not sure this link will show up, but here they are from 600-700 modular and priced low to high-


http://www.newegg.com/Product/ProductList.aspx?Submit=E...
April 18, 2009 1:19:08 PM

well no see devide 515 over 600 x 100 u get approximatly 86% if there is a psu 600 w with this efficiency then fine but dont think so stick with diamond black even if its not 80 certified hell even is 70% efficient or even 62% it will do the job.
"bas 3am salleek ;) "
September 15, 2009 6:06:36 PM

hey guys just a lil out of the topic question, to clarify, corsair 850w hx series can power two gtx 275 right? thanks for the reply^^
September 15, 2009 6:13:34 PM

up^
September 15, 2009 6:24:14 PM

anybody there?
September 15, 2009 6:37:27 PM

you guys sleepin already? Y_Y
      • 1 / 2
      • 2
      • Newest
!