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Will this 750W PSU suffice with my XFX GTX260 c216?

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Originally posted by: WaitingForNehalem
Originally posted by: jonnyGURU
Originally posted by: WaitingForNehalem
One more thing jonnyGURU. In your tests on the 750TX the +5V went above the 50mV spec to 80mV. Isn't that a problem?
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If you read the review, you'd note that test 6, when the +5V ripple went out of spec, was a crossload test. There was only a 2A load on the +12V and a 25A load on the +5V. The load is extrremely unrealistic. It's like using the Corsair to power a Socket A based PC or something. So why do we do the test? Because some PSU's hold up to crossload better than others and we like to reveal that.

Performance-wise, I do agree that the Seasonic platform they use for the Silencer is a better performance platform than the CWT based Corsair. The Corsair is nice because it's pretty quiet because PC Power is stuck in 80MM fan land.

But you even said yourself that you don't need 8x SATA, you won't be doing SLI... you don't even need a 750W power supply! You certainly wouldn't be pushing EITHER Corsair or PC Power to a point where you would see high ripple or anything, so why on earth go through the trouble of swapping out the PSU when you don't have to? If you didn't already have the Corsair, I'd say "sure get the PC Power", but you already have the Corsair and are using it.
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because I like having the best
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:roll: Then where's your quadfire rig or Tri-SLI?
 
I mean within reason. If Product A is only $10 than my budget, then I'll spend $10 more. I'm not saying I'll go out and get most expensive thing out there, I just like to get the best deal. Right now only the Antec Signature is ahead and it isn't worth the extra money IMO. As far as multi-GPU, what's the point. The next-gen card will preform almost the same as your two SLI'd cards. Then you'll have two cards to collect dust. Plus at 1680x1050 I don't need it.
 
Hey guys I finally finished putting all the i7 parts together,it seems awesome running 3.4Ghz idles around 41C-44C,but with that Hec 750W PSU,I tried my XFX GTX260 black with Far Cry 2 and Call of Duty,both ended up rebooting my system after I started the game for like under a minuate,so is this 100% due to my Hec 750W psu?And If so between the CORSAIR CMPSU-750TX and and PC Power & Cooling S75QB,they both have pretty good reviews,but you know only one psu is needed after all and I dont want to waste another $100 just to find out it's not the best for the buck,help me choose the better one between the two,thank you 🙂
Here is the links for both at newegg:
Corsair 750W: http://www.newegg.com/Product/...x?Item=N82E16817139006

PCP&C 750W: http://www.newegg.com/Product/...x?Item=N82E16817703009
 
Yea,could be a number of things but I noticed that the Hec 750W only has 4x6pins 12V rails with runs 19A each,and my xfx gtx260x black requires 40A current from 12V rail,so I was guessing it could be the problem,but however I dont know of any other way to find whether it's the psu or gtx 260 in this case,could someone enlighten me on this?
 
Originally posted by: tim924
Hey guys I finally finished putting all the i7 parts together,it seems awesome running 3.4Ghz idles around 41C-44C,but with that Hec 750W PSU,I tried my XFX GTX260 black with Far Cry 2 and Call of Duty,both ended up rebooting my system after I started the game for like under a minuate,so is this 100% due to my Hec 750W psu?And If so between the CORSAIR CMPSU-750TX and and PC Power & Cooling S75QB,they both have pretty good reviews,but you know only one psu is needed after all and I dont want to waste another $100 just to find out it's not the best for the buck,help me choose the better one between the two,thank you 🙂
Here is the links for both at newegg:
Corsair 750W: http://www.newegg.com/Product/...x?Item=N82E16817139006

PCP&C 750W: http://www.newegg.com/Product/...x?Item=N82E16817703009
Click to expand...

Get the PC Power and Cooling Silencer 750w.
 
Originally posted by: tim924
Yea,could be a number of things but I noticed that the Hec 750W only has 4x6pins 12V rails with runs 19A each,and my xfx gtx260x black requires 40A current from 12V rail,so I was guessing it could be the problem,but however I dont know of any other way to find whether it's the psu or gtx 260 in this case,could someone enlighten me on this?
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No your card does not require 40A from the 12V rail. 40A would be 480W. The reason you see that it is recommended to have 40A available on the 12V rail is because they are taking into account all components that need 12V power. That includes the hard drives, CPU, fans etc. Your Compucase PSU is supposed to have 60A on the combined 12V rails. However, as Jonnyguru said earlier, HEC/Compucase may exaggerate those ratings.

The only way to determine if it is the card or the PSU would be troubleshooting. Open the case and make sure the VGA card's fan is spinning. Check temperatures. The best way to troubleshoot a PSU is to try another PSU, otherwise you would need to use a PSU tester or multimeter.
 
Thanks for the valuable opinions,I actually did open the case and the gtx260 fan is spinning,and the reboot problem only occur whenever I play games like Far Cry 2 or Call of Duty,while playing other mmorpg games are still capable,so in this case,does this mean it will most likey be the psu?I have read other 750W PSU like Corsair/PCP&C they both have +12V 60A single RAil which mine only has 19A...
 
Originally posted by: tim924
Thanks for the valuable opinions,I actually did open the case and the gtx260 fan is spinning,and the reboot problem only occur whenever I play games like Far Cry 2 or Call of Duty,while playing other mmorpg games are still capable,so in this case,does this mean it will most likey be the psu?I have read other 750W PSU like Corsair/PCP&C they both have +12V 60A single RAil which mine only has 19A...
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There are 4 rails though. 19A x 4= 76A
 
Problem is there is only 2x6pin holes to be plugged in for the GTX260,which will gives me roughly 38A,not to mention some of you say that HEC PSUs tend to exggerate on the psu ratings,so that might be the reason why my system is shut down and reboot whenever I tried to play Far Cry 2,Btw if I was able to play other less intensive games like mmorpgs and movies,that means my GTX260 is doing fine on its own right?
 
You can't multiply rails like that. It doesn't work that way. That HEC supposedly can do 60A on the 12V combined according to its label. Obviously, it is having trouble with a much lower load than that 😉

But yeah, the HEC is probably your issue. Get a real unit. Both the corsair or the PCP&C are good. The Corsair is going to be the quieter of the two. You really don't need 750W though.
 
Originally posted by: WaitingForNehalem
There are 4 rails though. 19A x 4= 76A
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And you expect us to trust your judgement on Corsair vs. PC Power? 😉

 
Originally posted by: jonnyGURU
Originally posted by: WaitingForNehalem
There are 4 rails though. 19A x 4= 76A
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And you expect us to trust your judgement on Corsair vs. PC Power? 😉
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I only said based on the reviews the PC Power looked better and you agreed. Anyways, the places I read said to add the 12v rails together. Why isn't that correct? johnnyGURU, will you ever forgive me your highness?

Like here:
There should be a sticker on the side of the PSU stating the amperage available on the 12v rail (if there are two 12v rails (12v1 and 12v2) add them together to get the total available amperage on the 12v rails).
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http://www.techsupportforum.co.../305698-psu-rails.html
 
Btw guys to the alternatives of those two 750W PSUs,I also come across this budget one,but since xfx gtx260 require 40A on the +12V rails,I need to be extremely careful,please take a look at this Antec Ea650,see whether it's enough for my build:

Antec Ea650 link:http://www.newegg.com/Product/...x?Item=N82E16817371015

Need to comfirm whether this psu has enough power even when im playing intensive games like Far Cry 2 or Crysis where the GTX260 might need more juice at times,Thanks!
 
Originally posted by: WaitingForNehalem
Originally posted by: jonnyGURU
Originally posted by: WaitingForNehalem
There are 4 rails though. 19A x 4= 76A
Click to expand...

And you expect us to trust your judgement on Corsair vs. PC Power? 😉
Click to expand...

I only said based on the reviews the PC Power looked better and you agreed. Anyways, the places I read said to add the 12v rails together. Why isn't that correct? johnnyGURU, will you ever forgive me your highness?
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LOL! I was just teasing because you were adding up the +12V rails. 😉
 
ok,the case I 'm using is a Nzxt Apollo which is a ATX mid case,would the PCP&C 750W Fit since some reviews said that it's a big psu,or would the corsair 750TX be a better buy?
 
Originally posted by: jonnyGURU
Originally posted by: WaitingForNehalem
Originally posted by: jonnyGURU
Originally posted by: WaitingForNehalem
There are 4 rails though. 19A x 4= 76A
Click to expand...

And you expect us to trust your judgement on Corsair vs. PC Power? 😉
Click to expand...

I only said based on the reviews the PC Power looked better and you agreed. Anyways, the places I read said to add the 12v rails together. Why isn't that correct? johnnyGURU, will you ever forgive me your highness?
Click to expand...

LOL! I was just teasing because you were adding up the +12V rails. 😉
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So you do add up the +12v rails? Yes, it will fit.
 
Originally posted by: WaitingForNehalem
Originally posted by: jonnyGURU
Originally posted by: WaitingForNehalem
Originally posted by: jonnyGURU
Originally posted by: WaitingForNehalem
There are 4 rails though. 19A x 4= 76A
Click to expand...

And you expect us to trust your judgement on Corsair vs. PC Power? 😉
Click to expand...

I only said based on the reviews the PC Power looked better and you agreed. Anyways, the places I read said to add the 12v rails together. Why isn't that correct? johnnyGURU, will you ever forgive me your highness?
Click to expand...

LOL! I was just teasing because you were adding up the +12V rails. 😉
Click to expand...

So you do add up the +12v rails? Yes, it will fit.
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No... no you don't add up the +12V rails. Ever.

http://forums.anandtech.com/me...=2167846&enterthread=y


 
So everytime you just say the "there is 19A on each of the four +12V rails" instead of saying "there is a combined total of 76A on the four +12V rails"? I'm not seeing the difference.
 
They don't add up. Multiple rails make for such confusion, I wish for the good ol' days where there was 1 rail only 1 rail and that was it.

Check the label of the PSU, it says max power output for all 4 rails is 60A (720W / 12V = 60A). However it obviously has issues and can't really do that much (no surprise) or its OCP on the individual "rails" (which most likely all come from just one source anyway) is overly picky.
 
Originally posted by: SparkyJJO
They don't add up. Multiple rails make for such confusion, I wish for the good ol' days where there was 1 rail only 1 rail and that was it.
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Right, but in the "good ol' days" the +12V rail was less than 20A to begin with so why split it up?
 
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