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Can this power supply handle a i7 920 @ 3.8ghz and radeon hd 5870 in xfire

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June 25, 2010 7:11:13 PM

So this is a simple question to ppl on this forum just answer my question in yes or no if u can so my psu is this guy

http://www.newegg.com/product/product.aspx?Item=N82E168...

My system specs
I7 920 @ 3.8ghz
Gigabyte x58a-ud5
Sapphire radeon hd 5870 900/1300 (ati overdrive)
Gskill nq 1600mhz cas 9 (3x2)

Additional info I have 7 coolermaster case fans and 1hdd and 1dvd drive

So if u know the answer to my question pls answer directly in yes or no

Sorry for typing so rudely because I googled alot but dint find the answer I was looking for

Thanks in advance
June 25, 2010 7:22:46 PM

Barely...

Would recommend atleast 750w

Futureproof: 850w
a b ) Power supply
June 25, 2010 7:27:05 PM

Yes. The radeon 5870 will never use more than 188W and the i7 will never use more than 130W both on stock. Even overclocked, without getting into details, that PSU provides more than enough power on the necessary rails for the components you mentioned.
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June 25, 2010 7:44:23 PM

So @Enzo matrix are u 100% sure that I can add another hd 5870 if so pls reply :??: 
a b ) Power supply
June 25, 2010 7:48:50 PM

Devam said:
So @Enzo matrix are u 100% sure that I can add another hd 5870 if so pls reply :??: 

I didn't see anything about adding a second one in your post. I still can't find it. But in that case, my answer is word for word what blckhaze said. Except for the futureproof part.
June 25, 2010 7:48:56 PM

enzo matrix said:
Yes. The radeon 5870 will never use more than 188W and the i7 will never use more than 130W both on stock. Even overclocked, without getting into details, that PSU provides more than enough power on the necessary rails for the components you mentioned.

@Enzo since ur a pro I wanted to ask u about a psu calculated I found so just check it out and what I wanted to ask was that is It correct because when I entered my specs In it it told me that a 600w psu Is recommended and 551w is the minimum requirement

So here is the link
http://www.extreme.outervision.com/psucalculatorlite.js...
June 25, 2010 7:52:23 PM

As far as my first reply... I haven't actually tested your setup myself. I'm just looking at the recommended specifications at other sites and that is what I found. The recommendations were for Crossfire, not single cards. 650w is fine for a single card.. Recommended PSU for a single card is 500w

If one card uses 188w like Enzo said, then I would add 188w more to the minimum recommended 500w, and that's already 688w. So I guess they say 750w if you're going to crossfire, and 850w if you're going to overclock. So futureproof 850w was my recommendation because of that.
June 25, 2010 7:52:36 PM

enzo matrix said:
I didn't see anything about adding a second one in your post. I still can't find it. But in that case, my answer is word for word what blckhaze said. Except for the futureproof part.

In the topic name I wrote that can my psu handle a i7 920@3.8ghz and ati radeon's hd 5870 in xfire

By xfire I ment crossfire :D 
June 25, 2010 7:55:01 PM

Blckhaze said:
As far as my first reply... I haven't actually tested your setup myself. I'm just looking at the recommended specifications at other sites and that is what I found. The recommendations were for Crossfire, not single cards. 650w is fine for a single card.. Recommended PSU for a single card is 500w

If one card uses 188w like Enzo said, then I would add 188w more to the minimum recommended 500w, and that's already 688w. So I guess they say 750w if you're going to crossfire, and 850w if you're going to overclock. So futureproof 850w was my recommendation because of that.

But on the ati site its written that a 500w psu for a single card and a 600w or above when in dual mode
June 25, 2010 7:58:30 PM

It's probably ok...

I've just had several PSU's go out on me in the past. They were cheap ones, but now I'm cautious about it.. I like to be a little overpowered in my ways of PSU's so that I don't strain the PSU to near its max, so that it doesn't decide to burn out.

Especially with 2 beastly cards like those!
a b ) Power supply
June 25, 2010 8:00:24 PM

Devam said:
@Enzo since ur a pro I wanted to ask u about a psu calculated I found so just check it out and what I wanted to ask was that is It correct because when I entered my specs In it it told me that a 600w psu Is recommended and 551w is the minimum requirement

So here is the link
http://www.extreme.outervision.com/psucalculatorlite.js...


I got higher than that with 2 5870s. I got 642 Watt.
-Did you include your CPU overclock? And the voltage change?
-Did you change the CPU and load utilization to 100%?
June 25, 2010 8:00:36 PM

Blckhaze said:
As far as my first reply... I haven't actually tested your setup myself. I'm just looking at the recommended specifications at other sites and that is what I found. The recommendations were for Crossfire, not single cards. 650w is fine for a single card.. Recommended PSU for a single card is 500w

If one card uses 188w like Enzo said, then I would add 188w more to the minimum recommended 500w, and that's already 688w. So I guess they say 750w if you're going to crossfire, and 850w if you're going to overclock. So futureproof 850w was my recommendation because of that.

As i was saying and this is to support my point
Go see it ur self
http://www.amd.com/us/products/desktop/graphics/ati-rad...
a b ) Power supply
June 25, 2010 8:03:13 PM

Devam said:
In the topic name I wrote that can my psu handle a i7 920@3.8ghz and ati radeon's hd 5870 in xfire

By xfire I ment crossfire :D 

Oh lol! I wasn't looking at the title when I wrote my reply.
June 25, 2010 8:04:57 PM

enzo matrix said:
I got higher than that with 2 5870s. I got 642 Watt.
-Did you include your CPU overclock? And the voltage change?
-Did you change the CPU and load utilization to 100%?

Yes I did and bro my i7 920 is hitting 3.8ghz at 1.225 with drop enabled and CPUz and easy tune report my cpu voltage at 1.18idle and 1.168 under prime 95 and intel burn test
June 25, 2010 8:07:28 PM

And @Enzo pls go to the AMD link I have given in m reply to that guy
June 25, 2010 8:09:36 PM

I saw the link, and it appears 650w is capable :) 
June 25, 2010 8:21:54 PM

Blckhaze said:
I saw the link, and it appears 650w is capable :) 

Bro I think that the ati hd 58xx cards are really power efficient and I have seen ppl on this forum to be have runnin a i7 860 @ 4ghz at 1.3vcore and on a hd 5870 oc xfire on a corsair hx620 which I think is lower rated than my psu so I think it is possible to grab a hd 5870 when the 6xxx series comes and the prices drop because of the huge performance benefits so thanks guys for quick replies
a b ) Power supply
June 25, 2010 8:29:02 PM

No

The Cooler Master GX series has too much electrical noise at high loads. While I didn't see reviews on the 650W model reviews on the 750W model are pretty easy to find on Google. The Cooler Master GX series seems like a decent set of PSUs, but I wouldn't tax it with an overclocked CPU and two 5870s. It's up to you though.
June 25, 2010 8:35:05 PM

Dude ur rite I don't need a high core clock for both my CPU and gpu so my i7 920 hits 3.5ghz rock solid at 1.135vcore and for my hd 5870 I won't be overclocking them dude to heat they will cause so I think it would be worth a try
a b ) Power supply
June 26, 2010 12:43:36 AM

Devam said:
And @Enzo pls go to the AMD link I have given in m reply to that guy

I have and I know what it says. What I have told you is just from my experience and has nothing to do with the AMD site or that PSU calculator.
June 26, 2010 7:38:39 AM

enzo matrix said:
I have and I know what it says. What I have told you is just from my experience and has nothing to do with the AMD site or that PSU calculator.

@enzo thanks for all ur replies
!