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PSU for Dual 4870x2 - Page 6

post #51 of 109
Thread Starter 
oh boy, alot has been going on in here.

It's no biggie fellas. It will be great if it works and if it doesn't, I'll have to buy another PSU.
Either way, I will post the result when the 2nd 4870x2 comes in.
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post #52 of 109
Quote:
Originally Posted by scatteh316 View Post
??

I just hate people who think they're right about things when they have no experience with it at all.

A 750w would be cutting it very close.

I've been to the point were my PC would random shut down when playing games because the PSU couldn't cope with the load.

And depending on what speed the OP's i7 is clocked at 850w might be close as well.

These things easily clock to 4890 clock speeds because they have voltage control and they draw serious power then as it's effectively 4890 quad-fire.
Unless you've tried your setup on a decent 750W that wasn't faulty, your own "experiences" are irrelevant.
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post #53 of 109
Quote:
Originally Posted by Mirjalovic View Post
do you ever running your cards on a good 750w psu ? If not, your experience is nada. There is no point debating if you only justifying your overkill psu.
I used too.... Random shut down were a ball ache...
post #54 of 109
Quote:
Originally Posted by LOL_Wut_Axel View Post
Your meters measure at the wall. Also, it's not the 6970s that are needing all that power. I don't care what you have to say; you DO NOT need an 850W PSU to run a Radeon HD 6970 CrossFire, as proven by the links I provided.
I'd say a 700w unit is goodenough, but seeing as how those are few and far between and a good quality one is even rarer a 750w unit would be best there. You can run GTX580's and a i7 overclocked on an AX750
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post #55 of 109
Well here we go again!! Another Power supply bashing thread!!

OP i believe everyone here is trying to tell you what THEY believe is correct! There are legit reviews and psu caculators. There are also people on here with lots of knowledge. I have been trapped in this ,myself! I recommend what i believe is correct from a trusted review /site, and get bashed or called a idiot! There are alot of guys who will recommend the smallest psu you need ( they pride themselves on it) And there are some people who have no idea what there talking about!. So you should ignore all the bashing and argument and do some research yourself!!

I do believe 99% of the guys on OCN. are just recommending what they think is best!
Edited by MIKEVALL - 4/18/11 at 10:34am
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post #56 of 109
Quote:
Originally Posted by LOL_Wut_Axel View Post
Your meters measure at the wall. Also, it's not the 6970s that are needing all that power. I don't care what you have to say; you DO NOT need an 850W PSU to run a Radeon HD 6970 CrossFire, as proven by the links I provided.
Yes the meters measure at the wall, DUH. did you also know my power supply is ~90% efficient? So take a 800W draw, factor in 90% efficency and thats ~720W. if you also read my other post that was even when my video cards were at sock voltage, they are now even higher (original was 940mhz at 1.195v and now they are 1020mz at 1.265v)
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post #57 of 109
Quote:
Originally Posted by thealex132 View Post
What ~700w unit? If its the OCZ 700w I will bunch you in the abdomen XD
(not srs btw)
It was an old Antec unit, Was given to me by a family member as they no longer needed it.

Most of the time it was more then enough but certain games placed such an extreme load on the GPU's the PSU could not deliver and it just shut down.

Was very annoying, Especially when I hadn't made it to a check point to save my game
post #58 of 109
Quote:
Originally Posted by LOL_Wut_Axel View Post
You just pretty much proved my argument right there. You're running over-volted cars, which results in much higher power consumption than normal. Thanks for playing along...
Over-volting is common around here so why shouldn't it count?
post #59 of 109
Quote:
Originally Posted by Blindsay View Post
Did you not read my post at all?

At stock volts was when i measure the 800W at the wall. They are higher NOW so if i measured not it would be even higher than that.....

And who cares? As many have pointed out this is OCN who runs **** at stock
Over-volting a GPU will result in higher power draw than over-volting a CPU.

Also, you're still lying. A system with a Core i7 970 and a Radeon HD 6970 CrossFire pulls 600W AT THE WALL.

    
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post #60 of 109
Quote:
Originally Posted by LOL_Wut_Axel View Post
Over-volting a GPU will result in higher power draw than over-volting a CPU.

Also, you're still lying. A system with a Core i7 970 and a Radeon HD 6970 CrossFire pulls 600W AT THE WALL.

That has to be wrong. I couldn't run my 5870 crossfire NO OVERCLOCK ON ANYTHING. On a 550w unit. If I gamed at all it would crash (took like 30 sec)
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