Overclocking AMD Radeon R9-200 & HD7xxx, Share your OC and bencmark Scores here
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 Mar 29 2013, 05:48 AM
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#1
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Elite
6,799 posts Joined: Jan 2003  
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been out of this for a while.
whats the max safe voltage on the mvddc 1.5 stock 1.6 safe?? eh no answer running 1160/6600 at 1.213/1.552v (DMM read) ( Software is 1.209/1.552 ) Was interesting to find the voltage points on Sapphire VaporX 7970ghz. Interesting how good the 8phase/Dual Digital VRMs accuracy is. This post has been edited by cstkl1: Mar 30 2013, 07:41 PM |
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Apr 9 2013, 10:08 PM
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#2
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Elite
6,799 posts Joined: Jan 2003
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7970 Vapor-X 1160(1.243f/1725(1.6v) Max stable OC and probably max it can do. Max temp on OCCT/Furmark 70C
» Click to show Spoiler - click again to hide... « This post has been edited by cstkl1: Apr 9 2013, 10:12 PM |
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Apr 9 2013, 10:27 PM
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#3
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Elite
6,799 posts Joined: Jan 2003
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QUOTE(shepard @ Apr 9 2013, 10:15 PM) bro, iirc many 7970 vapor-x user cannot get past 1200MHz when oc'ing no matter how high they set their gpu voltage. so for your case, 1.243 is it gpu-z reading or you measured manually using multimeter? What is your max gpu/vrms temps at 1160MHz core? Just curious.. multimeter was about 1.239v so about there.. mvdcc is at 1.604 oppose to read of 1.602 so about there. LOL max OCCT/Furmark GPU-72/70C (30 min run) VRM1-78C/78C VRM2-72C/72C its all about finding the optimum powerboard limit. I tested all 3 card and came to the same conclusion that that powerboard limit + 1.243v set is the best and then just try ure luck with seeing what speeds u can get it stable at that. Any other to stabalize will take a sever MAX fps hit to stabalize. Which is y i suspect PLL voltage issue Fan Profle with Trixx So basically find if i go 70C - Fan hits 100% to bring it back down. Gaming mainly at 60% on crysis 3 at 2560 SMAA 2x Very High Blur Medium Vsync So far working at 30fps all the way. Smooth enough for me. (Havent tested the 1725 yet. So far been gaming for the whole week at 1650) » Click to show Spoiler - click again to hide... « This post has been edited by cstkl1: Apr 9 2013, 10:45 PM |
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Apr 10 2013, 12:18 AM
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#4
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Elite
6,799 posts Joined: Jan 2003
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Backed the Mem down to 1700. Odd crysis 1 hour nothing but lol in lowyat forum on chrome saw some tearing while replying pm. Signs that the pll is being worked hard at whatever preset voltage
This post has been edited by cstkl1: Apr 10 2013, 12:19 AM |
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Apr 29 2013, 11:30 PM
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#5
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Elite
6,799 posts Joined: Jan 2003
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i am still good at 1160/1650 on air. vrm readings all low.
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Apr 29 2013, 11:56 PM
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#6
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Elite
6,799 posts Joined: Jan 2003
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testing now the latest beta driver.
still seems good. same voltages ( its 1256 set now .. lol simcity ...) vram is at 1.562v this is comparison to the screenshot i did last time. hmm owikh did u read this http://support.amd.com/us/kbarticles/Pages...BetaDriver.aspx QUOTE NOTE! You must un-install AMD Catalyst 13.4 (if you have already installed AMD Catalyst 13.4) before installing AMD Catalyst 13.5 Beta This post has been edited by cstkl1: Apr 29 2013, 11:57 PM |
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May 1 2013, 06:46 PM
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#7
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Elite
6,799 posts Joined: Jan 2003
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Hmm so either tessalation n or driver frame been change to affect ure stabilities.
But curious how ure vrm hit 105 on water |
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May 3 2013, 12:01 PM
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#8
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Elite
6,799 posts Joined: Jan 2003
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QUOTE(ketapang @ May 3 2013, 08:53 AM) Can suggest what game should i use? Currently only have Hitman,Tomb Raider and Far Cry 3. the 255 is a error cause ure i/o is clashing with another software thats reading from the same chill/ic. Edit: My vrm temp is hovering around 75-79 but sometimes it jumps to 95 to 255.  Is it bug or wat? Using the latest GPU-Z.close the other |
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May 6 2013, 02:36 AM
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#9
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Elite
6,799 posts Joined: Jan 2003
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Owikh check hwinfo on the vid. Maybe driver is forcing the vid.
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May 6 2013, 02:38 AM
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#10
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Elite
6,799 posts Joined: Jan 2003
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Also can u use trixx 4.4b mod
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May 7 2013, 10:07 PM
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#11
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Elite
6,799 posts Joined: Jan 2003
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QUOTE(owikh84 @ May 7 2013, 09:46 PM) hmm dunno why after launching hwinfo64 and TRIXX and one reboot the VRM is working fine now in which 13.4 and 13.5 b2 yields the same VRM temp as 13.1. so i suspect ab error.Just required slightly more VDDC than 13.1. |
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