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OC'ing my 480 to 900 mhz, computer shuts down. - Page 3

post #21 of 26
I didn't realize these 480's can clock so high I only have mine at 800mhz.
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post #22 of 26
Quote:
Originally Posted by KusH View Post
I didn't realize these 480's can clock so high I only have mine at 800mhz.
Mine was a MSI lightning edition and was water cooled.
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post #23 of 26
Quote:
Originally Posted by krazyatom View Post
trying OCing individually?
This!
 
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post #24 of 26
Quote:
Originally Posted by YerMother View Post
I had a Single 480 OC'd to 950 MHz and it would trip my old 750W Bequiet Pro, especially working hard. I also had a cheaper 800W which would also trip. When i used both though it was fine so I knew then it was a power issue. Once I upgraded to my AX1200 it was fine.
That's crazy, even an 800W?

My 700W ModXStream never seemed to have any trouble running a high clocked 480, including a heavy CPU OC. And the unit is anything from decent, aged and low on amps. What kind of volts were you using?
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post #25 of 26
Quote:
Originally Posted by Stance View Post
That's crazy, even an 800W?

My 700W ModXStream never seemed to have any trouble running a high clocked 480, including a heavy CPU OC. And the unit is anything from decent, aged and low on amps. What kind of volts were you using?
+144mV on GPU for 950MHz.

It would be fine untill you used some GPU stress program like OCCT or FurMark. Just overloads the 12V rail. Power from the socket was like 630W so obviously the PSU is rated more. I think if you have a PSU with a single 12V rail you'd be ok but both of mine had multiple rails with not much guff!

I was running my OC'd 980X too, plus two pumps and lots of fans.
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post #26 of 26
Ah, that explains it.
I've always learned single or multiple rails doesn't really matter, just the (combined) quality it delivers.
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