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RX580 voltage and TDP OC

 
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post #1 of 1 (permalink) Old 07-11-2019, 11:08 AM - Thread Starter
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RX580 voltage and TDP OC

Hi all, I'm currently running a modified gtr be bios, 1430/2020 with custom memory timings and maxed out tdp (225/185/225).

Right now this is the max I can get with 1.25v (1.2v in bios but hits 1.25v under full load).

I did some testing, the card gets +20Mhz every 0.05v I add, so 1450 1.3 and 1470 1.35. Problem is, I have a single 8 pin and theoretically I can't go above 225w (75 pcie and 150 cable), but I heard that sometimes a good psu can give more than 150w.

At 1.3v I'm already hitting the tdp and my userbench score is lower, 80~% to 79~%.

Also with 300/246/300 I had blackscreens while stress testing the gpu via OCCT and my cable was quite hot.

How much room do you think I have left?


Btw the card is under lc and vrms have an heatsing plus a fan, usually stays around 65c/70c.

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XFX RX480 GTR BE (LC 580 Bios 1450/2020)
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