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How to overclock a 7850 past 1050MHz?

Hmm..... getting a lot of random atikmpag.sys BSOD crashes since yesterday.

Probably nothing to do with new MSI AB but my computer certainly didn't like it!.

Going to do a driver sweep of all my 12.3 cats and try the 12.2's.
 
chris74 said:
Hmm..... getting a lot of random atikmpag.sys BSOD crashes since yesterday.

Probably nothing to do with new MSI AB but my computer certainly didn't like it!.

Going to do a driver sweep of all my 12.3 cats and try the 12.2's.
Click to expand...


For me its freeze-a-palooza
if i touch any sliders i freeze
most of the monitor data are at zero
 
for msi AB you gotta uncheck the "enable low level hardware access interface" in general tab on settings, something to do with not all the 7850's being loaded on. After that you'll have all your monitoring back on msi and oc :D
 
Unlike others, I can't seem to get my Sapphire OC 7850 to 1200mhz. Right now I am running it at 1125/5300 @ 1.210v stable (Heaven, 3dmark, BF3).

I'm worried about increasing the voltage but the stock setting is actually 1.210v. If I intend to get to 1200mhz, should I go past 1.210v? Just wanted to get some opinions. Thanks.
 
eek, looks like my fan profile didn't load and the thing got up to 86c while running unigine! luckily it was less than 15 minutes. do you think i hurt my card? seems to be fine, but don't know if damage was done at that temp.
 
tuffluck said:
eek, looks like my fan profile didn't load and the thing got up to 86c while running unigine! luckily it was less than 15 minutes. do you think i hurt my card? seems to be fine, but don't know if damage was done at that temp.
Click to expand...

Have you got good ventilation in your case?
Mine peaked at 60 overclocked with a 40% MAX fan profile

overclock_uni_bench_1140_1150_5800.png
 
I realised I had moved my GPU to the nearest pci-e to the cpu yesterday and think I may have found my problem with continual atikpmag.sys errors.

Suffice to say it is now sitting back in the second pci-e x16 slot away from my Asus D2X and I can report I have had no further crashes/BSODs. Weird.

I have ran benchmarks with a reduced clock of 1150/6000 at 1.135 volts with great success and it still plays BF3 at ultra settings and HBAO.

I am not sure what an extra 50Mhz on the core and of course more volts relates to in tangible terms if any.....so I think I have found my 24/7 clocks even though I know this baby can stretch her legs.
 
Last edited:
chris74 said:
I realised I had moved my GPU to the nearest pci-e to the cpu yesterday and think I may have found my problem with continual atikpmag.sys errors.

Suffice to say it is now sitting back in the second pci-e x16 slot away from my Asus D2X and I can report I have had no further crashes/BSODs. Weird.

I have ran benchmarks with a reduced clock of 1150/6000 at 1.135 volts with great success and it still plays BF3 at ultra settings and HBAO.

I am not sure what an extra 50Mhz on the core and of course more volts relates to in tangible terms if any.....so I think I have found my 24/7 clocks even though I know this baby can stretch her legs.
Click to expand...

i agree, 1150 @ 1.135 is what i am comfortable with too. also stock volts does 1050mhz, but to jump 100mhz requires another .6v of power. however to go from 1150 to 1200 (50mhz) requires a whole .45v, almost a mv per mhz, which like you said, may not really be worth it.

though in a year if you're considering buying a new card anyway, could be a good time to OC it to 1200+, but right now 1150 pretty much does everything.

chris74 said:
No It hasn't. The fact that it continued for 15 minutes too should put your mind at ease too.
Click to expand...

actually it crashed unigine within that 15 minutes. i walked away from the computer, and when i came back it had crashed. i was trying 1200 @ 1.176v (apparently i have to have 1.18 to get to 1200 with my sapphire OC edition). somehow the fan profile was set at 10% constantly, so that's why it got so hot. either way if 86 isn't too bad then i guess i have nothing to worry about.
 
chris74 said:
Hmm..... getting a lot of random atikmpag.sys BSOD crashes since yesterday.

Probably nothing to do with new MSI AB but my computer certainly didn't like it!.

Going to do a driver sweep of all my 12.3 cats and try the 12.2's.
Click to expand...

I was getting the same ATIKMPAG freezes too (MSI Frozr). Actually same as my last ATi card (4870X2).

The fix, as before for me, was to up the VCORE. Sounds odd, but it's worked for me, twice, once on X38 and now on X58.
 
down18 said:
i did all that again for about the tenth time and it didn't work again

uuuuuurgh
Click to expand...

Just had another thought on the process I went through to get my card unlocked. My mobo (P8z68M Pro) has onboard graphics so I took the card out when running Ccleaner and Driver sweeper. This means that when you restart Windows it isnt constantly installing device driver software for the card.
Might be something to do with why it worked, worth a try if you have onboard graphics port. If you dont have onboard graphics, try running your HDD as a slave and run driver sweep on it that way, don't know if it works like that but could be worth a shot.
 
karl55 said:
just tried MSI Afterburner latest release

Everything that needs to be done with cfg files was done(enabling unofficial, V control and whatnot).
Cant touch anything,even if i try to adjust fan speed it will lagg and eventually freeze.
Core voltage is locked and no data is shown
Power limit (%) is there
core clock and mem clock are there and show correct data,also they can go beyond the 1050/5800 (max is 1120/1560)
Every value in the hardware monitor shows 0 exept mem clock and usage(556/96).

Also did sfc /scannow , got an error, it got repaired after reboot, gputweak still locked at 1050/5800, even after reboots and closing/opening enabling/disabling.
Click to expand...

This happens to me aswell.
 
So, I noticed on this thread somebody mention that quite a few Sapphire owners had success with 1.176 voltage.

I have an MSI TF3 and thought that i would give it a go, here are my results

Powered by Unigine Engine

Heaven Benchmark v3.0 Basic

FPS:
67.7
Scores:
1706
Min FPS:
33.3
Max FPS:
143.9
Hardware

Binary:
Windows 32bit Visual C++ 1600 Release Mar 7 2012
Operating system:
Windows 7 (build 7601, Service Pack 1) 64bit
CPU model:
Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz
CPU flags:
3292MHz MMX SSE SSE2 SSE3 SSSE3 SSE41 SSE42 HTT
GPU model:
Intel(R) HD Graphics Family 8.15.10.2372 3860Mb
Settings

Render:
direct3d11
Mode:
1920x1080 fullscreen
Shaders:
high
Textures:
high
Filter:
trilinear
Anisotropy:
4x
Occlusion:
enabled
Refraction:
enabled
Volumetric:
enabled
Tessellation:
normal

A couple of questions

1 = Notice what it says as my GPU Model? i am actually using AMD cat 12.3 as my drivers. Any thoughts?

2 = I am an OC noob and wondered if this score is any good?
 
Stev said:
What temps/noise can I expect from a vtx3d edition clocked to 1ghz?
Click to expand...

It'll do that at stock volts, so it should be fairly low temp/noise wise, probably 1-2C over stock temps.

djphilos said:
1 = Notice what it says as my GPU Model? i am actually using AMD cat 12.3 as my drivers. Any thoughts?

2 = I am an OC noob and wondered if this score is any good?
Click to expand...

1) Looks like you haven't turned off the IGP on your CPU. I'd go have a spy in BIOS and see if you can disable it.

2) Score looks OK, but it's hard to compare as you haven't run the settings from the Heaven 3.0 thread. You need to run 1920x1080, 4xAA, Normal Tess. You've missed out the 4xAA on your run :)
 
HeX said:
It'll do that at stock volts, so it should be fairly low temp/noise wise, probably 1-2C over stock temps.



1) Looks like you haven't turned off the IGP on your CPU. I'd go have a spy in BIOS and see if you can disable it.

2) Score looks OK, but it's hard to compare as you haven't run the settings from the Heaven 3.0 thread. You need to run 1920x1080, 4xAA, Normal Tess. You've missed out the 4xAA on your run :)
Click to expand...

DOH, come again and rewind :)

Ok, so here we are

GPU Clock 1200
MEM Clock 5800
GPU Voltage 1.176


Powered by Unigine Engine

Heaven Benchmark v3.0 Basic

FPS:
57.8
Scores:
1456
Min FPS:
28.2
Max FPS:
121.0
Hardware

Binary:
Windows 32bit Visual C++ 1600 Release Mar 7 2012
Operating system:
Windows 7 (build 7601, Service Pack 1) 64bit
CPU model:
Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz
CPU flags:
3292MHz MMX SSE SSE2 SSE3 SSSE3 SSE41 SSE42 HTT
GPU model:
Intel(R) HD Graphics Family 8.15.10.2372 3860Mb
Settings

Render:
direct3d11
Mode:
1920x1080 4xAA fullscreen
Shaders:
high
Textures:
high
Filter:
trilinear
Anisotropy:
4x
Occlusion:
enabled
Refraction:
enabled
Volumetric:
enabled
Tessellation:
normal

Any Good?
 
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