How to overclock a 7850 past 1050MHz?

Blackheart_72 · 11 Aug 2012 at 00:17

Mine as it is, temps in heaven are 55-57°c.

Not sure why the heaven screenshot is showing a mix of my onboard and 7850.

shadowfm · 13 Aug 2012 at 12:34

Hi,

I got my 7850 a while ago and I over clocked and everything was successful.
I was getting 1250mhz everything seemed fine and I had profiles set up in GPU Tweak.

The other day I installed 12.7 Beta Drivers and the New caps and ever since then I haven't been able to over clock past the CCC limits?

I went and got the two missing .DLL files and put them into the Sys folders and the GPU tweak folders and still locked in place by GPU tweak.

When I click the profile in GPU Tweak i can see it go to 1250 like it was doing for weeks for about 1 second then it just jumps down to the CCC limits?

Is there anything that got reset or anything after I updated drivers?

Also overclocking range enhancement is enabled I tried turning it on and off and didn't make a difference?

Anyone else have a similar issue or know what I am doing wrong?

kharma45 · 13 Aug 2012 at 13:06

Anyone had any issues with their 7850 where it sort of judders or skips every few seconds in-game? Happens whether I'm at stock or overclocked speeds, running 12.4 drivers.

Blackheart_72 · 13 Aug 2012 at 13:16

Mine is now at:

1150 Core
1300 Memory
1.149 volts

Looped it through heaven 3 times last night and played TDU 2 for a while at max settings it ran sweet as a nut (my old 6870 struggled on TDU). Temps in heaven reached 60 -63°c at full load.

Ultra_Extreme · 13 Aug 2012 at 13:38

Blackheart_72 said:
Mine is now at:

1150 Core
1300 Memory
1.149 volts

Looped it through heaven 3 times last night and played TDU 2 for a while at max settings it ran sweet as a nut (my old 6870 struggled on TDU). Temps in heaven reached 60 -63°c at full load.

your screenshots seem a little wierd to me m8, your card is outperforming my 7950/i7 setup and according to heaven its all being done on your internal intel HD gfx lol and that 3dmark 11 score is very high for your setup/clocks, not sure i believe you.

Blackheart_72 · 13 Aug 2012 at 14:30

Ultra_Extreme said:
your screenshots seem a little wierd to me m8, your card is outperforming my 7950/i7 setup and according to heaven its all being done on your internal intel HD gfx lol and that 3dmark 11 score is very high for your setup/clocks, not sure i believe you.

Honestly not sure why its showing the internal GPU and not showing the 7850, I even have the internal disabled in device manager. Could not find a setting in heaven to check and cant seem to find an answer on the web.

Maybe if i uninstall and reinstall it might help.

EDIT: That didnt help either, anyone know what it might be as when I am running heaven its showing the clocks I have in the afterburner OSD.

shadowfm · 13 Aug 2012 at 14:32

Blackheart_72 said:
Honestly not sure why its showing the internal GPU and not showing the 7850, I even have the internal disabled in device manager. Could not find a setting in heaven to check and cant seem to find an answer on the web.

Maybe if i uninstall and reinstall it might help.

I had this problem too mate. The solution I found was to disable the Internal IGP in the BIOS.

Try it out and see if it works.

Ultra_Extreme · 13 Aug 2012 at 14:37

Blackheart_72 said:
Honestly not sure why its showing the internal GPU and not showing the 7850, I even have the internal disabled in device manager. Could not find a setting in heaven to check and cant seem to find an answer on the web.

Maybe if i uninstall and reinstall it might help.

Doesnt explain why you are getting same score as a 7970 overclocked, that must be impossible on a 7850

Blackheart_72 · 13 Aug 2012 at 15:04

Just run it through 3dmark again and got this

http://www.3dmark.com/3dm11/4111434

Blackheart_72 · 13 Aug 2012 at 15:26

shadowfm said:
I had this problem too mate. The solution I found was to disable the Internal IGP in the BIOS.

Try it out and see if it works.

Had a look in the bios and the options I had were:

Auto
Enable always
Enable only if no ext in PEG slot

Chose third one and rebooted and it still shows, so doing that and diasbling in device manager didnt help.

dave_beast · 13 Aug 2012 at 17:16

Built a system for a mate over the weekend, MSI 7850 Rwin Frozr 3 OC, installed Asus GPU Tweak and clocked it to 1200/1800 at 1.2v (12.7beta), ran Heaven 3.0 and got 60fps on the OcUK 1920 default settings, card never went above 58ºc in either benchmarking or gaming. The 7850 is without doubt the best card this year for enthusiasts not afraid of +mhz.

Blackheart_72 · 13 Aug 2012 at 18:26

Finally figured it out, had missed an option in the bios.

Ran some new tests after disabling onboard.

3DMark test is here:

http://www.3dmark.com/3dm11/4112814

Celisuis · 13 Aug 2012 at 19:22

Just ordere a 7850

This one to be exact: http://www.overclockers.co.uk/showproduct.php?prodid=GX-100-GI&groupid=701&catid=56&subcat=411

Hoping to overclock quite well...wanting at least 1200/5500.

Comes with the double fan...so hopefully heat won't be an issue.

If not, I will have a 200mm fan intake straight on it.

Ultra_Extreme · 13 Aug 2012 at 20:34

impressive results, realised i was wrong when i found the VDDC setting for my 7950 (doh) overclocked ant topped you by some at same clocks so well done tho on a 7850 niccce

Winky_The_Winking_Turtle · 14 Aug 2012 at 11:17

Do I need to lower voltage? By default it's 1.210, should I try at 1.215? Then go down to default voltage and see if I can get it stable there?

dave_beast · 14 Aug 2012 at 11:21

Winky_The_Winking_Turtle said:
Do I need to lower voltage? By default it's 1.210, should I try at 1.215? Then go down to default voltage and see if I can get it stable there?

Try adding 4xAA then you can compare to the cards in the Heaven 3.0 thread.

HarryBizzle · 16 Aug 2012 at 14:58

I've just bought a 7850, and I plan on putting it into a BitFenix Prodigy case which I bought last week (Couldn't believe my eyes when I saw £10 off on here and free delivery :cool:

), and was just wondering if anyone has done the same?

If so, what kind of overclock are you getting out of it?

I'm going to be running it with an i3-2120 and B75 motherboard.

I think I've got the MSI Twin Frozr OC model (I think that's with the Twin Frozr III) - is that an okay model in terms of overclocking? I've started making my way through this thread but haven't found anything on it in particular.

kharma45 · 16 Aug 2012 at 15:02

Yeah the Twin Frozr is a good one for overclocking, at least mine is anyway

very happy with it!

liamcrane · 19 Aug 2012 at 19:24

Do you have to use a certain version of the Asus GPU Tool to unlock voltage? Im still running Afterburner version 2.1 but im thinking of maybe giving this ago as im stuck on the 1050mhz afterburner limit

Lazdaa · 19 Aug 2012 at 19:44

liamcrane said:
Do you have to use a certain version of the Asus GPU Tool to unlock voltage? Im still running Afterburner version 2.1 but im thinking of maybe giving this ago as im stuck on the 1050mhz afterburner limit

For afterburner try this: http://forums.overclockers.co.uk/showthread.php?t=18431335

Worked for me