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[Lab501]AMD's HD 7870 volt modded to 1500MHz

post #1 of 7
3/21/12 at 3:30am
Thread Starter 
http://lab501.ro/placi-video/amd-radeon-hd-7870-studiu-de-overclocking
473

353

Quote
"VRM for GPU has 5 phases controlled by Chile 8225G and are built with Renesas mosfet 40A R2J20658NP of PA2080.191NL Pulse coupled inductors with the same current, the filter using polymer capacitors. Components are quality and VRM's resistance is very good, including in conditions of high TDP and lack any kind of cooling."
Edited by Redwoodz - 3/21/12 at 3:37am
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post #2 of 7
3/21/12 at 3:34am
That's awesome thumb.gif
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post #3 of 7
3/21/12 at 3:35am
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post #4 of 7
3/21/12 at 3:37am
Not 1500MHz. tongue.gif

And that's actually pretty impressive. Still less than what my 7970 gets at 1150 / 1600 though. Impressive nonetheless though.
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post #5 of 7
3/21/12 at 3:40am
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Quote:
Originally Posted by pioneerisloud View Post

Not 1500MHz. tongue.gif
And that's actually pretty impressive. Still less than what my 7970 gets at 1150 / 1600 though. Impressive nonetheless though.

Not in all tests no,they were ran at varying clocks

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post #6 of 7
3/21/12 at 3:42am
Quote:
Originally Posted by Redwoodz View Post

Quote:
Originally Posted by pioneerisloud View Post

Not 1500MHz. tongue.gif
And that's actually pretty impressive. Still less than what my 7970 gets at 1150 / 1600 though. Impressive nonetheless though.

Not in all tests no,they where ran at varying clocks

369

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post #7 of 7
4/3/12 at 11:28am
Hi Redwoodz, that is an awesome score!!! thumb.gifthumb.gifthumb.gif How did you do that? Btw vgpu stay 1.250volt at 1500mhz??? I see it on Afterburner monitoring.
So far with air cooling I manage to get this :
vantage2.png

Uploaded with ImageShack.us

Note : Do you get mis-read in vgpu voltage like mine? In afterburner, max was 1.60volt ... thats not possible right? I only set max on 1.30volt. HWmonitor also mis-reads myvoltage.
Edited by neoroy - 4/3/12 at 11:34am
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