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650W enough for GTX590 or HD6990? - Page 2

post #11 of 22
Thread Starter 
Quote:
Originally Posted by Cacophony;13128905 
no it won't. he'll be under 500 watts no joke.

Ahh, then that tells me I have one of the better PSU's. Excellent cool.gif
So if I purchase a GTX590 or a HD6990 at some point in the future, and already have some overclocking going on in my system, it sounds like I won't need to worry about going over my PSU threshold.. Even if I want to OC the video card as well.
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post #12 of 22
It is not safe to overclock the GTX590. Its VRMs are underengineered to the point of being barely adequate. A VRM is a power supply, and in the world of GPU power supplies the GTX590's is like using a Corsair CX430 to power a system with dual GTX460s. Way past what's really safe, and pushing it much further at all will result in definite failure.
post #13 of 22
Quote:
Originally Posted by revlimiter;13128944 
Ahh, then that tells me I have one of the better PSU's. Excellent cool.gif
So if I purchase a GTX590 or a HD6990 at some point in the future, and already have some overclocking going on in my system, it sounds like I won't need to worry about going over my PSU threshold.. Even if I want to OC the video card as well.

You can get a decent OC out of the 590, but keep it at stock voltage for now.

The cards are wayyyy undervolted to about .913mV, but I personally would not overvolt past 0.963-0.975mV. Nvidia has stated that up to 1.02mV is the absolute max the card can take *safely*, but obviously you'd need to play it safe regardless.

The issue with VRMs blowing was when early reviewers used drivers without OCP and overvolted updwards of 1.1mV, which is obviously NOT recommended.

You can't overvolt with the 270.51 beta drivers, but you should still be able to get a slight OC out of stock voltage regardless....and for your setup...there would be no need to OC. Even stock would be plenty for your 2 monitors.
Edited by jcde7ago - 4/14/11 at 5:18pm
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post #14 of 22
Did you get the PSU from the Canada Computers sale as well? smile.gif
Up until today, it was going for $70 there.. I haven't received mine yet.
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post #15 of 22
Thread Starter 
Quote:
Originally Posted by Dirtyworks;13129182 
Did you get the PSU from the Canada Computers sale as well? smile.gif
Up until today, it was going for $70 there.. I haven't received mine yet.

I got mine from NCIX, it was a surprise special that they had it down to $39.99 after $30 MIR.
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post #16 of 22
ohh nice. With my location, if I were to buy it from NCIX (even with the sale), I would have paid more than I did from CC :\

Can you do me a big favour and tell me how long the CPU power cable is? I have a full tower and it has to reach from the bottom to the top and I'm not sure how much cable I have to play with haha.
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post #17 of 22
I'm running an overclocked cpu and two 6950s in crossfire. With the cards overclocked to 900/1350 my UPS reports a little under 450w. Keep in mind that is not factoring in efficiency of the psu and includes my monitor.

So yeah, you'll be fine.
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post #18 of 22
Thread Starter 
Quote:
Originally Posted by BababooeyHTJ;13129299 
I'm running an overclocked cpu and two 6950s in crossfire. With the cards overclocked to 900/1350 my UPS reports a little under 450w. Keep in mind that is not factoring in efficiency of the psu and includes my monitor.

So yeah, you'll be fine.

Wow.. good to know! I wonder if I'd be able to run two 6950s unlocked to 6970s and overclocked in Crossfire with my PSU?
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post #19 of 22
Thread Starter 
Quote:
Originally Posted by Dirtyworks;13129234 
ohh nice. With my location, if I were to buy it from NCIX (even with the sale), I would have paid more than I did from CC :\

Can you do me a big favour and tell me how long the CPU power cable is? I have a full tower and it has to reach from the bottom to the top and I'm not sure how much cable I have to play with haha.
[ame]http://www.youtube.com/watch?v=NvuhTl5MHmo[/ame]
@ 5m00s smile.gif
The cable length should be more than adequate.
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My System
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Intel i7 2600K Gigabyte Z68X-UD3H-B3 MSI GTX480 Lightning 8GB Patriot G2 Series Division DDR3 @ 9-9-9-24 ... 
Hard DriveHard DriveOptical DriveOS
10TB 7500RPM SATA3 64GB Crucial M4 CT064M4SSD2 (Boot Drive) Lite-On IHAS124-04 DVD RW Windows 10 Ultimate 64-bit 
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Dual Screen (x2) Dell UltraSharp U2412M 24" IPS... Apple Keyboard (A1243) Antec Truepower New 650W Modular Corsair Carbide Series 500R 
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Logitech MX Anywhere 2 None Cooler Master Hyper 212+ 
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AMD A6-5400K MSI FM2-A75MA-E35 AMD Radeon HD 7540D 8GB Patriot G2 Series Division DDR3 @ 9-9-9-24 ... 
Hard DriveHard DriveOSCase
64GB Crucial M4 CT064M4SSD2 Toshiba HDKPC08 3TB SATA3 7200RPM 32MB Cache Windows 8 Professional 64-bit Apex DM-387 mATX HTPC Case w/ 275W PSU 
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post #20 of 22
Quote:
Originally Posted by revlimiter;13129330 
Wow.. good to know! I wonder if I'd be able to run two 6950s unlocked to 6970s and overclocked in Crossfire with my PSU?

They are shader unlocked. I am running the default 1.1v core voltage. The 6970 bios used 1.18v iirc.

Those were normal gaming loads. I saw the same when I ran three threads of prime while having gputool scan for artifacts. I haven't tried furmark or anything like that though.
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