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Performance drop after upgrading 4770 to 5770 - Page 2

post #11 of 17
Quote:
Originally Posted by onli View Post
LC Power :S

But still...no restarts, no ODD, and when i put back my old 4770, the CPU performance was still bad.
Your PSU cant deliver the juice so i suggest you take out your card before you do it some damage
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post #12 of 17
Drivers, PSU or CPU.
I am leaning towards your PSU.

And not all quads are created equal.
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post #13 of 17
Thread Starter 
The computer is built by myself, the PSU was involved with the chassis...but hadnt had any problems yet with it.
post #14 of 17
The CPU should not bottleneck it. Try another higher wattage PSU, borrow your friend's or something
post #15 of 17
Quote:
Originally Posted by onli View Post
The computer is built by myself, the PSU was involved with the chassis...but hadnt had any problems yet with it.
Ya generally PSU's that come with the case are crap. I am leaning towards the PSU as the cause of the problem.

I would recommend getting 500 watt 80 plus PSU, something like this would be perfect, and only 60$ right now:

http://www.newegg.com/Product/Produc...82E16817371035
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post #16 of 17
my core2duo e2180 2.5 bottlenecked a 4830, in the phenom2 the 4830 ran beautiful
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post #17 of 17
Thread Starter 
UPDATE:

Today i met up one of my friends and tried his 450W Chieftech PSU...everything worked fine, got normal, 9800-9800 results.

After that, i put back my 420W LCpower crap, ran Vantage, and also had 9800-9800.

Then i brought home my PC, tested...7200-7200 again...i thought my PSU is unstable, sometimes good, sometimes bad...

Then the ***** hit the fan...i bought a Hiper type-r 580W PSU...built it in, and still getting crappy 7200 results.....now what?

Please help
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