How to overclock a 7850 past 1050MHz?

CyberCrow · 31 Aug 2012 at 14:38

Try MSI after burner,
http://event.msi.com/vga/afterburner/download.htm

Settings/general an tick "force constant voltage" this will stop it dropping volts when going from 2d-3d aswell.

Angst · 31 Aug 2012 at 16:39

Just got my 7850 but when overclocked with asus gpu tweak my memory doesn't downclock in 2d, does anyone else have this problem or know how to fix it?

CyberCrow · 31 Aug 2012 at 17:12

Angst said:
Just got my 7850 but when overclocked with asus gpu tweak my memory doesn't downclock in 2d, does anyone else have this problem or know how to fix it?

Try MSI after burner,
http://event.msi.com/vga/afterburner/download.htm

Settings/general an tick "force constant voltage" this will stop it dropping volts when going from 2d-3d aswell.

Angst · 31 Aug 2012 at 17:35

CyberCrow said:
Try MSI after burner,
http://event.msi.com/vga/afterburner/download.htm

Settings/general an tick "force constant voltage" this will stop it dropping volts when going from 2d-3d aswell.

I cant get msi afterburner to unlock the voltage control, iv'e tried all the suggested stuff and ltmatt's fix in the other thread but it wont unlock.

Sephisto · 31 Aug 2012 at 22:20

Yo everyone, I'm a total noob when it comes to overclocking but if anyone could check out these results and give a verdict I'd love to hear it.

Stock voltage (1.138v)
1050/1050 Mhz
1350/1450 Mhz
Power Control Settings - 20%
Fan speed 45%
Temp during benchmark - Averaged at 49 degrees

PC specs -

Sapphire HD 7850 2GB
i7 920 @ 3.8 Ghz
12 GB RAM DDR3
Windows 7 Home Premium 64-bit
1680x1050

What do you think?

Edit: Well I started getting artifacts in Guild Wars 2, nothing serious so I put OverDrive back to stock and it's back to normal. I better do more testing.. either I'm getting artifacts or the game has graphical bugs.. lol

Moonkey · 1 Sep 2012 at 11:24

anybody tried to overclock a 1gb card?

CyberCrow · 1 Sep 2012 at 13:25

I haven't seen any comments in this thread on the 1gig card, have you tried a forum search?
I to would like to see a comparison between the 2

RICKST20 · 2 Sep 2012 at 03:16

Just thought id update my previous attempt.
Iv recently bought an i5 2500k and upgraded from an i3 2100. First impressions are staggeringly different. Much much smoother in gaming over using the i3.

AlfBaxter · 2 Sep 2012 at 03:41

CyberCrow said:
Try MSI after burner,
http://event.msi.com/vga/afterburner/download.htm

Settings/general an tick "force constant voltage" this will stop it dropping volts when going from 2d-3d aswell.

Doesn't really work that way for me. My voltage stays at 1225mv until my monitor goes into standby, but when it comes back on the voltage is back to its default .824mv. It's a pain because the only way I can get my 7850 stable is by manually switching profiles before I launch a 3D app so that the voltage is at 1225. Anything else and I get crashes when it goes from 2D to 3D mode.

CyberCrow · 2 Sep 2012 at 13:24

Disable the monitor stand by power option in control panel of windows,also in your web browser disable "hardware acceleration" this will stop any drops in voltage when changing web pages.

Kitarist · 2 Sep 2012 at 16:29

Which 7850 and 7950 is worth to buy?

Tonester0011 · 2 Sep 2012 at 17:25

My brother must have one of the worst 7850s.

Cant get 1100 on the core. MSI TF4 PE if anyone was wondering, 1210mv for 1075core 1300 mem...Runs nice and cool, 60c on Heaven.

Tempted just to DSR it for another one.

HeX · 3 Sep 2012 at 08:38

I would do, that's a terrible OC for a lot of volts.

Protomize · 3 Sep 2012 at 09:16

Lmao, only on Overclockers. If it doesn't overclock well, returned. Forget that it works at rated spec fine.

555BUK · 3 Sep 2012 at 13:15

Tonester0011 said:
My brother must have one of the worst 7850s.

Cant get 1100 on the core. MSI TF4 PE if anyone was wondering, 1210mv for 1075core 1300 mem...Runs nice and cool, 60c on Heaven.

Tempted just to DSR it for another one.

I had a very similar MSI TF that was utter pants as well. My best 7850 out of the four I have owned was the cheapest stock/reference card of the lot (and the one that I used to start this thread).

All of my cards GPU clocks have scaled directly with their ASIC values. >80% great, 70's are okay, 60's pants.

MyBrainz · 3 Sep 2012 at 22:03

Quick question for u 7850 owners

Have a mate that just bought an MSI 7850 Power Edition card and was wondering if he has to plug in both 4-pin molex connectors for power from the 6-pin that goes into the card. I'm thinking he does but i just wana make sure.. he's running it on one of those connectors right now.

Cheers

MartynB85 · 3 Sep 2012 at 22:24

MyBrains said:
Quick question for u 7850 owners

Have a mate that just bought an MSI 7850 Power Edition card and was wondering if he has to plug in both 4-pin molex connectors for power from the 6-pin that goes into the card. I'm thinking he does but i just wana make sure.. he's running it on one of those connectors right now.

Cheers

No, just one.

MyBrainz · 3 Sep 2012 at 22:29

MartynB85 said:
No, just one.

Ok cheers mate.. so wots the other one for? Seems strange unless its for molex power connectors that only have 2 pins in them which are usually for fans.

DanUre · 4 Sep 2012 at 15:22

I'm new to OC'ing and was just looking for some guidance. Currently have my 7850 at 1050/1300 and it is stable. However I cannot change the voltages in MSI afterburner and under full load im looking at 1.210V from the reading in GPU-Z. Is this high for the overclock im running? Cheers

Menty · 4 Sep 2012 at 23:46

MyBrains said:
Quick question for u 7850 owners

Have a mate that just bought an MSI 7850 Power Edition card and was wondering if he has to plug in both 4-pin molex connectors for power from the 6-pin that goes into the card. I'm thinking he does but i just wana make sure.. he's running it on one of those connectors right now.

Cheers

Tell your mate to connect both molex connectors.
The reason that 2 x molex to pcie connectors are supplied is to distribute the current through two sets of wiring not one!

If he has a 7850 no doubt overclocking is going to be on the cards so get that other molex connected or the worst case is the single molex wire will burn out.