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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1640

post #16391 of 38701
Quote:
Originally Posted by pioneerisloud View Post

lachen.gif Sadly I can't say this is my first time having issues with a high end GPU.......
May my poor GTX 580 RIP. Same with my poor GTX 470. Oh, and my HD4890. Surprisingly my HD4850 stayed alive for a long time. My 8800GTS 512 / 9800GTX / GTS 250 (I flashed the BIOS on each release)....also ended up with a sad fate after the last flash and a cooler mod on it.
It would appear that I need to quit tinkering with video cards............

LOL, you must really abuse those cards. Don't suppose your definition of water cooling is tipping a jug of water into the top fan of your PC is it ? biggrin.gif

RIP.
post #16392 of 38701
Quote:
Originally Posted by Newbie2009 View Post

Quote:
Originally Posted by pioneerisloud View Post

lachen.gif Sadly I can't say this is my first time having issues with a high end GPU.......
May my poor GTX 580 RIP. Same with my poor GTX 470. Oh, and my HD4890. Surprisingly my HD4850 stayed alive for a long time. My 8800GTS 512 / 9800GTX / GTS 250 (I flashed the BIOS on each release)....also ended up with a sad fate after the last flash and a cooler mod on it.
It would appear that I need to quit tinkering with video cards............

LOL, you must really abuse those cards. Don't suppose your definition of water cooling is tipping a jug of water into the top fan of your PC is it ? biggrin.gif

RIP.

No no no, my CPU just got thirsty, so I just strapped a 1L bottle of water to the cooler, that way it keeps the water cool. tongue.gif

Seriously though, after looking back on all the cards I've gone through....I think I just have absolutely horrible luck. Because any cards that ARE NOT my daily driver....all live long and healthy lives. I've still got my original HD4850 that I've had for YEARS (since it was a new card).....and its perfectly fine and kicking in my GF's rig. Unstable at stock overclocked speeds, but its fine at reference stock speeds.
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post #16393 of 38701
Sorry to see your beast of a card go pioneer. frown.gifHow much voltage were you putting on it?

I keep my card on stock voltage 90% of the time so I can run my rad fans on low, though I've had no problem using 1.36v when I go for my max overclock.

Edit: I guess waterblocks are different compared to the Accelero, so voltage is almost meaningless to me.
Edited by Kokin - 10/1/12 at 12:06am
    
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post #16394 of 38701
soo, not sure if this has been discussed, but im OCing my gigabyte 7950 and my max gpu and mem clocks are locked so i can only get to 1100gpu and 1575 mem, but my minimum voltage is locked as well and i mean i dont mind those clock speeds but i want to increase my voltage from 1.090 up to 1.1050 just to compensate the clock speeds. Anyone know how to unlock the card, ive been looking around and found nothing, i was going to try updating the bios.

btw im using oc guru II, i may try afterburner.
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post #16395 of 38701
Quote:
Originally Posted by pac0tac0 View Post

soo, not sure if this has been discussed, but im OCing my gigabyte 7950 and my max gpu and mem clocks are locked so i can only get to 1100gpu and 1575 mem, but my minimum voltage is locked as well and i mean i dont mind those clock speeds but i want to increase my voltage from 1.090 up to 1.1050 just to compensate the clock speeds. Anyone know how to unlock the card, ive been looking around and found nothing, i was going to try updating the bios.
btw im using oc guru II, i may try afterburner.

you will need to enable unofficial overclocking. Sapphire trixx is best least hassle OC app for HD7XXX series imo. Extra voltage levels too.
post #16396 of 38701
Quote:
Originally Posted by Newbie2009 View Post

you will need to enable unofficial overclocking. Sapphire trixx is best least hassle OC app for HD7XXX series imo. Extra voltage levels too.

what would you say is a safe voltage to run? i don't think i feel comfortable going past 1.225, am i being overzealous?
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post #16397 of 38701
Quote:
Originally Posted by pac0tac0 View Post

what would you say is a safe voltage to run? i don't think i feel comfortable going past 1.225, am i being overzealous?

As long as your gpu and vrm temps are good then I'd say up to 1.3v on the core would be enough for a safe overclock.
post #16398 of 38701
i'm not sure if anyone had a similar experience but i'd like to share it with you:

it has been a few months since i started my new (and the first real) rig and i couldn't be happier, especially with my Sapphire HD 7950 950 MHz Edition (one of the best biggrin.gif )
as good as everything was, i had a few times where i had weird errors and crashes of the display, like black screens which sometimes require to restart and sometimes not, lined screens etc and at first i blamed the drivers (because its simple to do so). additionally sometimes after i restarted i had the b2 code on the MoBo Q-LED indicator and it required a few restarts to get it solved after i updated to 12.8 i didn't had any problems, or so i thought. after a little while the same problems repeated and a bit more often, which made me frustrated. after a little searching and some problem solving thinking i reached the thing that i see as the solution.

since by my manual the b2 code is: "Legacy Option ROM Intialization" and because before it comes (not stuck at, just a stage at the POST) 96: "PCI Bus Assign Resources" and also i recently noticed my MoBo has a great feature of having little indicator LEDs that say where the problems is, i.e. either boot device, vga, dram, or cpu (and also the magical powers of Google) the problem became clear:
its a problem with the pci-e connection.

at first i tried booting without a vga card, which worked. later i plugged the card to the second slot, which didn't work. after i tried to boot without plugging power to the card, worked. i still didn't have a clear idea of what is the solution, but because i remembered that when my card's fans operate at 60-75% it vibrates it came to me to try and hold the card and pressing it a little to the pci-e connection, and viola it worked. my conclusion is that either the card is a little to heavy for the pci-e and 2 pci slots to handle or my cable management of the pci power plugs is pushing the card down a bit so it ruins the connection or a combo of both. so i'll try to redo the cables a bit (so they'll come from above the card and not below like most or just try not to make them so tight) or think of a creative support solution for the card's weight (a string or some sort of a pillar like this)


not sure if it is my main problem, but i hope it might help someone out there with similar problems since my card has a not-so-light cooler.
(if anyone have any sort of feedback it is very welcome)

edit:
i was wondering, does a back-plate add/help to hold the structure of a card or they just add weight?
Edited by RKTGX95 - 10/1/12 at 12:30pm
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post #16399 of 38701
recently got a sapphire vapor-x 7950, my 1st card since a radeon 9550 lol is it normal for the end of the card(where pcie connectors are) to bend down a small bit due to the size/weight of the card?
post #16400 of 38701
Yes you can expect the end of the card to bend a little.

Also another question in regards to the Vapor-X 7950.. Wanting to get around the voltage lock issue these cards are plagued with, im thinking that flashing a different bios over it is really the only way to go but not entirely sure what one to go for.. I am thinking the sapphire 7950 950mhz would be a good one or possibly a sapphire 7970?? not sure about that one though, don't want to kill it.. I have good cooling in my case, my 2 crossfired 6870's were sitting at about ~65c under full load.

I would like to get 1100/1450 out of my V-X, anything higher than that would be a bonus.. Anyone have suggestions?
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