Is my 7950 boost pants?

[chingpot]

Just got another 7950 after my first one was duff, new one is the v277 with the 6+8 pin on a 7970 board, msi twin frozr III. Just tried a few overclocks and it doesn't like anything, heat is no issue, simply raising the core from 960mhz to 1050mhz after about 5 seconds of unigine a message pops up in system tray that graphics drivers have failed and recovered.

 

Any reason for this? using cat 14.7, amazed if this thing cant even be overclocked 90mhz, like I said its not a temp issue, anyone know or seen this before?

 

cheers

[TheRunningOtaku]

did you increase the voltage?

Maybe you got a dud (bad draw from the silicon lottery)

[chingpot]

did you increase the voltage?

Maybe you got a dud (bad draw from the silicon lottery)

So far just using CCC, tried with 20% power and 0%, wouldnt have thought would need voltage increase untill 1100mhz

 

ill install afterburner and have a go with voltage, any recommendations?

[xAcid9]

What is the default 3D voltage? Does it come with dual BIOS? 

[winningsince1337]

Make sure to use 2 separate leads from the PSU. Also, never OC with CCC. If you push it to far and you crash CCC will put you in a bootloop when you try and start windows as CCC applies the overclock on startup. Use afterburner. Could just be a really bad chip too.

[chingpot]

Make sure to use 2 separate leads from the PSU. Also, never OC with CCC. If you push it to far and you crash CCC will put you in a bootloop when you try and start windows as CCC applies the overclock on startup. Use afterburner. Could just be a really bad chip too.

My psu is CXM600 only has one gpu power cable with 2 x 6+2

 

Ill give afterburner a go, just got it running 1000mhz from ccc no issues. be disappointed if I can't get this thing to atleast 1100/1400

[chingpot]

What is the default 3D voltage? Does it come with dual BIOS? 

stock core voltage is 1118

 

whats the power % do, increase max heat, is that all?

 

whats a safe voltage for speeds around 1100/1400?

[xAcid9]

stock core voltage is 1118

 

whats the power % do, increase max heat, is that all?

 

whats a safe voltage for speeds around 1100/1400?

 

My card need 1130 for 1050mhz

 

Power limit % increase/decrease the card TDP. 

 

Different chip different volt. Mine need 1180 for 1100mhz.

[chingpot]

My card need 1130 for 1050mhz

 

Power limit % increase/decrease the card TDP. 

 

Different chip different volt. Mine need 1180 for 1100mhz.

1040 stable @ stock with AB so far

 

when overclocking these new amd gpus then should you just wack the power limit to 20%?

[Sintezza]

role back the driver to 14.4 maybe?

14.7 is still beta

[xAcid9]

1040 stable @ stock with AB so far

 

when overclocking these new amd gpus then should you just wack the power limit to 20%?

 

Yes, but watch out for those temp, especially VRM if GPU-Z can detect the sensors.

[chingpot]

Yes, but watch out for those temp, especially VRM if GPU-Z can detect the sensors.

1050mhz 20% power limit and 1.2vcore

 

fails again

 

might try 1.4 drivers

 

not getting hot though, 67c at 100% load which is same as stock speeds

[chingpot]

What is the default 3D voltage? Does it come with dual BIOS? 

just had a look, yes I have twin bios, the switch is on the left at the moment. whats the deal with this?

[SkilledRebuilds]

just had a look, yes I have twin bios, the switch is on the left at the moment. whats the deal with this?

Sometimes two cloned bios's. Sometimes two fan speed profiles.

Bios's - So you can flash one of them and keep the original intact.

Fan Speed - One faster than another out of the box.

[chingpot]

Sometimes two cloned bios's. Sometimes two fan speed profiles.

Bios's - So you can flash one of them and keep the original intact.

Fan Speed - One faster than another out of the box.

I just checked out the other one, it was set to 2, bios one is same setup by looks of it.

 

gonna try 14.4 drivers

[SkilledRebuilds]

I just checked out the other one, it was set to 2, bios one is same setup by looks of it.

 

gonna try 14.4 drivers

I would think it's the Drivers, the 14's have had a really bad run, not for just me, but almost every 290 owner I've talked to has an issue of some sort (little or big)

13.12 was the last stable driver besides 14.4 that I can use.

14.1/14.2 both BSOD in Win8.1 startup,and Crash a lot in Gaming scenarios on W7 & 8.1 if I get past login's black screen.

 

W7 with 14.4 or 13.12 has been flawless.

[xAcid9]

just had a look, yes I have twin bios, the switch is on the left at the moment. whats the deal with this?

 

If you peek to the right of the Crossfire fingers on the photo you'll see a small switch, the 1 and 2 position are actually a Dual BIOS toggle switch. Setting 2 returns the card to factory default, setting 1 is an unprotected mode which allows you to overclock and tweak. So, mode two is your failsafe BIOS.

Sauce: 

http://www.guru3d.com/articles-pages/msi-radeon-hd-7950-twin-frozer-iii-review,7.html

[chingpot]

I would think it's the Drivers, the 14's have had a really bad run, not for just me, but almost every 290 owner I've talked to has an issue of some sort (little or big)

13.12 was the last stable driver besides 14.4 that I can use.

14.1/14.2 both BSOD in Win8.1 startup,and Crash a lot in Gaming scenarios on W7 & 8.1 if I get past login's black screen.

 

W7 with 14.4 or 13.12 has been flawless.

tried 14.4 still failed at 1050

 

ill try higher voltage and if that dont work guess have to stick to my max 1020 and overclock teh memory

 

bit pap if 1020 is my limit

[SkilledRebuilds]

Well 2bh the 1000mhz from any 7950 is pretty powerful. They originally came out slower than that.

 

I had an original @ 800mhz, another @ 880Mhz (both with lower voltage @ 1.109 than the later bios driven cards @ 1.256v stock)

 

Even if it only gets to 1000mhz comfortably, thats more than enough for todays games (Without AA) @ acceptable fps.

But it is a pity it cannot go further.

[chingpot]

Well 2bh the 1000mhz from any 7950 is pretty powerful. They originally came out slower than that.

 

I had an original @ 800mhz, another @ 880Mhz (both with lower voltage @ 1.109 than the later bios driven cards @ 1.256v stock)

 

Even if it only gets to 1000mhz comfortably, thats more than enough for todays games (Without AA) @ acceptable fps.

But it is a pity it cannot go further.

Yea your right but I always liked overclocking my cards, free performance. so far 1020/1350 is stable at stock 1.188

 

when going further should I stick power limit to 20%?

[SkilledRebuilds]

Yeah power limit makes sure that the card sticks to your intended clocks and doesnt declock in certain situations it normally would.

IE: Game only requiring 60% of the power available, declocks card to (768-800mhz for example) ensuring 99% load, instead of keeping her @ 1000mhz and having 80% gpu load.

More Power Limit the better when Overclocking.

 

Yea your right but I always liked overclocking my cards, free performance. so far 1020/1350 is stable at stock 1.188

 

when going further should I stick power limit to 20%?

[chingpot]

Yeah power limit makes sure that the card sticks to your intended clocks and doesnt declock in certain situations it normally would.

IE: Game only requiring 60% of the power available, declocks card to (768-800mhz for example) ensuring 99% load, instead of keeping her @ 1000mhz and having 80% gpu load.

More Power Limit the better when Overclocking.

Just tried 1.250v core +  20% power limit

 

it still couldn't handle 1050mhz

 

shame, temps are below 65c load, think I got a poor overclocker, most folks have no problem 1100 with no voltage change according to what ive read.

[SkilledRebuilds]

I've seen default voltage on 7950's @ 1.256 and the MAX I would ever go on mine was 1.3vcore (Max vcore allowed with MSI on my 7950 without extending them manually)

Other than testing around that... yeah stick with what you got now.

[xAcid9]

Just tried 1.250v core +  20% power limit

 

it still couldn't handle 1050mhz

 

shame, temps are below 65c load, think I got a poor overclocker, most folks have no problem 1100 with no voltage change according to what ive read.

 

On what game you did the stability test? 

 

Some non-ref 7950 stock voltage is 1.25v, that's why they can get 1100mhz without voltage change. Like my card, the Boost BIOS (2nd bios) default voltage is 1.25v and it is hardlocked mean even if you alter the value in software it will stick at 1.25v.

 

Can you confirm that your card voltage actually changed? Also, everytime the screen went black, you need to restart your pc.

[SkilledRebuilds]

On what game you did the stability test? 

 

Some non-ref 7950 stock voltage is 1.25v, that's why they can get 1100mhz without voltage change. Like my card, the Boost BIOS (2nd bios) default voltage is 1.25v and it is hardlocked mean even if you alter the value in software it will stick at 1.25v.

 

Can you confirm that your card voltage actually changed? Also, everytime the screen black, you need to restart your pc.

^ OP - If you display driver does stop and start then yeah, I'd restart before trying again too.

Stated again from this user - 1.256v, and check if your other bios allows any difference to your OC, V locked or not.