How to overclock a 7850 past 1050MHz?

tuffluck · 30 May 2012 at 21:06

Nickjf20 said:
You're probably better off just using the ASUS tool

Any reason why you want/have to use trixx ?

i have been having random crashes, and i'm wondering if it's because of either ULPS or because of not having a power setting of +20%--both of which you can't adjust in the ASUS tool. anyone experienced this with their card?

.:SAmSuNG:. · 30 May 2012 at 21:14

I adjust the power setting in afterburner and everything else in asus tweak.

Balb0wa said:
well my msi Twin Frozr IV is at 1250 core and 5520 memory, 1.254 volts and temps of 65 auto fan profile, in dirt 3 in a hot room, not bad at all.

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Howd you get your voltage that high? Mine wont allow past 1.22v in asus tweak?

555BUK · 30 May 2012 at 21:37

Arron17 said:
I am considering getting a second 7850 because of the prices at the moment, but my motherboard only supports 16x/4x for crossfire, but it is a pci-e 3 board, so would this still ruin the performance of crossfire?

PCIE3 4x is the same as PCIE 8x. This is more than sufficient bandwidth for a 7850.

Bradmax57 · 30 May 2012 at 21:47

Now ive spotted some 7850's for 159.99 new im tempted to send the 670gtx ive got coming tomorrow back and do cf :S although the noise would kill me

Twirlywoos · 30 May 2012 at 21:52

The flickering I had has gone. It was the flow scroll driver on my g700.

lewism · 30 May 2012 at 22:02

This seems to be my limits on this card. Anything above just isn't stable. Card doesn't like anything above 1.178v and just crashes hard. At 1.71 I can hit 1182mhz but other than that it just crashes. Even 5600mhz doesn't make a full run through Heaven.

My temps however haven't crept past 68 and my fan load hasn't been over 45% so it's certainly tolerable. Just need to put a few hours gaming on it and see just how stable to clock is.

Anyone else have any ideas or is this just as far as my standard saphire will go?

Arron17 · 30 May 2012 at 22:27

555BUK said:
PCIE3 4x is the same as PCIE 8x. This is more than sufficient bandwidth for a 7850.

Hmm it is tempting, the only other thing that concerns me is that I only have a 500W PSU but looking at some calculators It seems that I would have enough to run both of them.

Bradmax57 · 30 May 2012 at 22:30

Should be enough as its a decent brand, 150 ish for each card, 77 for cpu hdd's and fans wont use that much still leaves some headroom for overclocking

Arron17 · 30 May 2012 at 22:38

Bradmax57 said:
Should be enough as its a decent brand, 150 ish for each card, 77 for cpu hdd's and fans wont use that much still leaves some headroom for overclocking

Nice I might give it a pop then, I'm amusing that the cards brand doesn't matter when putting them in crossfire. I can just get the cheapest one and pop it in.

Richeh · 30 May 2012 at 22:47

Am trying to use gpu-z with my HIS 7850 and Cat 12.4 with CCC but it crashes on startup saying the application has closed, any ideas?

[Damien] · 30 May 2012 at 22:49

Just received my HIS 7850. ASIC of 91.6%. Got it at maxed catalyst OC at the moment. Going to give a good clocking run when I get time.

ThePicard · 31 May 2012 at 00:36

Help needed with a Sapphire HD7850 OC

Hi Lewism. I have to say, your results are vexing me because I have almost the exact same setup (except that my Sapphire is OC, which makes it worse :confused:

) and I cannot reproduce the results...you've got me by about 4 fps in Heaven with your initial 1079 mhz core clock run and I doubt it would even get through with the settings on your most recent post. What am I missing?? (I know 4 fps sounds small, but it's bigger than that...even with 1150/[email protected], I only get 49.1/1237 in Heaven...that's lower than what you were getting with just 1079/[email protected]...and you have a lower Asic. That can't be right.)

In any event, here is my setup. This is a neat card, but I'm half tempted at this point to swap it back out with my beloved 5870 and see what I'm actually gaining (doh why didn't I run 3d mark 11 and Heaven on the 5870 before I swapped it...stupid!).

Okay, for reals this time, here's my setup:

Intel Core i7 920 @ 3.8 ghz (and you are at stock 2.667ghz which makes it even *more* vexing)
6 GB Ram (can't remember make 3*2gb dimms)
Sapphire HD7850 OC w/ 79.4 Asic (which now is seeming to suck more and more if people are talking about HIS' with Asics in the mid 90's)
MSI x58 Pro-E mobo
12.4 (8.961.0.0 regular non-beta)
No CCC - Using Sapphire Trixx

Thanks for any wisdom you or anyone can provide!

lewism said:
Here are a few results from my quick play around this evening.

Stock bench under Heaven;

Downloaded Trixx and upped the core to 1079mhz. Haven't touched the memory or voltage.

This is with an Asic quality of 78.9%

I think i'll be able to get a good bit more out of it. Haven't pushed the fans really and the noise wasn't noticeable at all. Heard more of the "whine" than anything else.

gurusan · 31 May 2012 at 01:45

So I still can't seem to get any voltage control with my XFX Double D 7850

There are people claiming ASUS GPU tweak works on the newegg reviews for the card but I can't seem to get it working.

Bartouille · 31 May 2012 at 03:20

gurusan said:
So I still can't seem to get any voltage control with my XFX Double D 7850

There are people claiming ASUS GPU tweak works on the newegg reviews for the card but I can't seem to get it working.

TriXX works.

gurusan · 31 May 2012 at 03:28

not for me. :/ Which version of Trixx and cat drivers?

McBain · 31 May 2012 at 21:27

Just got a MSI Twin Fozr III 7850.

ASIC Value is 83%, having some issues with the voltage on this using the Asus GPU tool.

Whenever I change the voltage, it doesn't actually appear to be doing anything. The only tool that seems to be upping the voltage on the card is the Trixx utility, but the max core voltage I can get out of that is 1.145.

Subsequently the max stable core I can achieve is 1130. Any ideas how I can get the voltage higher?

Bradmax57 · 31 May 2012 at 21:49

These really do seem to be a mixed bag of what utility will clock which card and then even the same cards require different programs to change core and volts etc its just bizzare

[Damien] · 31 May 2012 at 22:26

At max catalyst settings w/ stock voltage my card runs and passes heaven fine, If I so much as bump the core up to 1100 from 1050 heaven causes the gfx driver to crash and restart. Bumping the voltage up to 1100 or even 1225 has no effect on stopping it crashing. I've tried with both the memory @ stock speeds, or at max catalyst settings (5800).

Baby steps are needed I think...

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Bradmax57 · 31 May 2012 at 22:37

[Damien];22043793 said:
At max catalyst settings w/ stock voltage my card runs and passes heaven fine, If I so much as bump the core up to 1100 from 1050 heaven causes the gfx driver to crash and restart. Bumping the voltage up to 1100 or even 1225 has no effect on stopping it crashing. I've tried with both the memory @ stock speeds, or at max catalyst settings (5800).

Baby steps are needed I think...

***Please resize image to no more than 1024 wide.***

I had similar results with my 92% asic his iceq x.....

lewism · 31 May 2012 at 22:40

ThePicard said:
Hi Lewism. I have to say, your results are vexing me because I have almost the exact same setup (except that my Sapphire is OC, which makes it worse) and I cannot reproduce the results...you've got me by about 4 fps in Heaven with your initial 1079 mhz core clock run and I doubt it would even get through with the settings on your most recent post. What am I missing?? (I know 4 fps sounds small, but it's bigger than that...even with 1150/[email protected], I only get 49.1/1237 in Heaven...that's lower than what you were getting with just 1079/[email protected]...and you have a lower Asic. That can't be right.)

In any event, here is my setup. This is a neat card, but I'm half tempted at this point to swap it back out with my beloved 5870 and see what I'm actually gaining (doh why didn't I run 3d mark 11 and Heaven on the 5870 before I swapped it...stupid!).

Okay, for reals this time, here's my setup:

Intel Core i7 920 @ 3.8 ghz (and you are at stock 2.667ghz which makes it even *more* vexing)
6 GB Ram (can't remember make 3*2gb dimms)
Sapphire HD7850 OC w/ 79.4 Asic (which now is seeming to suck more and more if people are talking about HIS' with Asics in the mid 90's)
MSI x58 Pro-E mobo
12.4 (8.961.0.0 regular non-beta)
No CCC - Using Sapphire Trixx

Thanks for any wisdom you or anyone can provide!

Not too sure, with the settings above i get a solid 55 fps.

I am pushing 24gb on vengeance RAM. Whether or not this makes any considerable difference I couldn't say. The Saphire cards do seem to be a mixed bag as to what kind of card you get. My card will just not go above 1.171 volts. At all. Yet people are pushing others up to 1.3. However i'm not sure as to why your FPS is so low. They all tend to be there or there about. Maybe 555dub can shed some light.