How to overclock a 7850 past 1050MHz?

[Nickjf20]

I'd say you have an overheating problem there, that's a really high temp compared to others running at much higher clocks and voltages. My 7850 never gets above 65-66C at 1200/1350, 1.25V. You might be better off cutting your losses and selling the card, then buying another. It's a bit of a lottery, by all accounts, whether you get a good OCer or not.

Which cooler are you running ?
I've got one of these http://www.hisdigital.com/un/product2-698.shtml

My case air flow is poor atm because I've only got one of the front fans running at 600rpm (both will be installed at 800rpm in a week or two) although I've removed all the PCI bracket covers and left the side door off - still no change.

Do you think that if I got an accerlero twin turbo and improved the airflow I would be alright ? Or should I just return the card while I can ?

 

[Bartouille]

I really don't know what's going on with my card.

It will loop sanctuary until the cows come home at 1025/1450, but BF3 crashes after 30mins. Dirt crashes as soon as you get ingame

Upping the voltage from the stock 1.038 to anything above 1.1V just causes crashes, even at 1025. 1.038V to 1.1V seems to have do nothing to prevent crashes either.
GPU-Z reports the voltages are increasing as expected

I've put the fan on 100% fixed, and it still crashes at 1200/1300 @ 1.225V
It gets through more of sanctuary at lower volts. Never reaches 70C before crashing.

Am I doing this all wrong ? I'm using trixx because the asus tool didn't show the enhanced overclocking range box

I have CCC installed if that makes any difference.
PSU is a corsair TX750M

Don't worry about it. I thought my card was stable too but it crashed after playing GTA IV for 5 hours. A simple benchmark run is simply not enough to call the overclock stable as most people in this thread did. Oh and btw, my card can't even do 1ghz at stock volts (1.075v) so your card is not the worst for sure.

 

[Meaker]

AMD Radeon HD 7970M video card benchmark result - Intel Core i7-2820QM Processor,Micro-Star International Co., Ltd. MS-16F2 score: X2152 3DMarks

X2152

1025/1575 stock voltage.

Getting to the ballpark of you desktop guys

 

[wazza300]

I'd say you have an overheating problem there, that's a really high temp compared to others running at much higher clocks and voltages. My 7850 never gets above 65-66C at 1200/1350, 1.25V. You might be better off cutting your losses and selling the card, then buying another. It's a bit of a lottery, by all accounts, whether you get a good OCer or not.

id upp your voltage a little,mine can max ccc limits with 1.138v so id start there atleast

 

[McBain]

id upp your voltage a little,mine can max ccc limits with 1.138v so id start there atleast

Heat is an issue at the moment by the looks of it, not sure i'd look at upping the voltage until that's been brought under control a little. Would agree that his clocks are likely limited by his vcore, but hitting 79 degrees in BF3 @ 1.038v doesn't sound good. That's if you're talking to Nick, but looks like you've quoted someone else

Nick - is that with a custom fan profile? As others have said, might be worth trying to reseat the cooler, or setting a custom fan profile to bring those temps down a little bit.

I know my card doesn't like anything around 75 degrees @ 1200 core.

 

[HeX]

Yup that card is running way hotter than it should be.

At 1225/5800 @ 1.18V my card tops out at 69C.

 

[Nickjf20]

Heat is an issue at the moment by the looks of it, not sure i'd look at upping the voltage until that's been brought under control a little. Would agree that his clocks are likely limited by his vcore, but hitting 79 degrees in BF3 @ 1.038v doesn't sound good. That's if you're talking to Nick, but looks like you've quoted someone else

Nick - is that with a custom fan profile? As others have said, might be worth trying to reseat the cooler, or setting a custom fan profile to bring those temps down a little bit.

I know my card doesn't like anything around 75 degrees @ 1200 core.

Nope, it's just the automatic profile, but the fan does reach 80%. Any louder is ludicrous
I could try whacking the fan on 100% and seeing what temps I get then.

I didn't think the stock cooler was this bad, but maybe it is. If it is just a reseating problem, would I have to replace the thermal paste as I don't have any spare atm ?

Tempted to get the accelero twin turbo for £35

 

[McBain]

Nope, it's just the automatic profile, but the fan does reach 80%. Any louder is ludicrous
I could try whacking the fan on 100% and seeing what temps I get then.

I didn't think the stock cooler was this bad, but maybe it is. If it is just a reseating problem, would I have to replace the thermal paste as I don't have any spare atm ?

Tempted to get the accelero twin turbo for £35

Yeah you'd want to use some thermal paste definitely.

I wouldn't shell out just yet, i'd go down the reseat route with paste and see what happens. No point shelling out £35 for the sake of it, although by all accounts it's a very handy cooler on these.

 

[AlfBaxter]

On my MSI 7850 I can adjust Core voltage, VDDCI (auxiliary) and memory voltage independently using afterburner. The last two are set as offsets relative to Vcore. I run it at 1200 core, 1350 memory with 1.25 Vcore and at the moment have the offsets on 0.

Anyone think it's worth experimenting with setting VDDCI and memory at different values? I guess I could have the memory quite a bit lower than 1.25V since it's not OCd much, but I don't know what VDDCI does and can't find any real info on MSI's website.

 

[gaam]

Hey, anybody noticed buzzing sound from the card at really high FPS?
For example Max Payne 3 loading screens: 4000-8000 fps = loud high pitch buzzing noise from the card (not psu). It changes with the fps, at 100-200 I just hear it, at 4000-8000 its really loud
BF3: if you snipe, aiming on this building: IMAGE
I have a Sapphire one.

 

[Protomize]

Hello guys, what AMD partner is the safest bet to go with in terms of getting a highly over clockable HD 7850? Sapphire, Asus, MSI, Power Color? Thanks. Also, I'm typing to you guys on my first desktop build. I over clocked a Core i5-3450 from 3.1ghz stock to 3.9ghz if one core is used and 3.7ghz across all 4 cores. This CPU shouldn't cause any sort of bottlenecking to the HD 7850 in crossfire, right? Also, I have 8gb's of 1333mhz ram.

Thanks.

 

[YamiNoZero]

Well, I feel like I've finally pushed my XFX card to the limit:

1300/1500 at 1.3v


This was with fixed 100% fan, and was basically the furthest I could push the card. Temps stayed right around 70 C.

I think I'm gonna go with this for 24/7
1250/1500 at 1.25 v


(sorry for the large image sizes)

Hey there, I have an XFX CORE edition, I dunno if yours is the DD edition or so, but I haven't been able to push my card beyond 1200 (Yes, I did try keeping the mem clock @stock) without the whole driver crashing.
I think the reason is the Vcore, I've used triixx as described in your post but, the problem is that NONE of the programs I use reports that the Vcore actually increases, did you ACTUALLY check the Vcore when you increased it via triixx? I mean, the idle voltage is like...860v and the moment the card starts processing something, the voltage jumps to 1213 and I haven't been able to increase it further, I tried flashing it to Asus's bios, but it didn't work, the display would completely disappear when I did so.
If you did and you're 100% sure it did change, would you mind sharing a bios @1.3V? I would REALLY appreciate it.
I'm SERIOUSLY frustrated 'cause, I got it on LC and I can't push the limits...Which is the damn sole purpose of LCing...

My regards to everyone, just to note, I registered here because of this VERY helpful thread.

 

[HeX]

Hey, anybody noticed buzzing sound from the card at really high FPS?
For example Max Payne 3 loading screens: 4000-8000 fps = loud high pitch buzzing noise from the card (not psu). It changes with the fps, at 100-200 I just hear it, at 4000-8000 its really loud
BF3: if you snipe, aiming on this building: IMAGE
I have a Sapphire one.

It's the stupid high FPS making the card squeal. You need to use D3Doverider, driver level vsync, or an FPS limiter to stop your card rendering ridiculously high fps.

That'll eliminate the squeal.

 

[Brian18741]

Hey Guys,

Been messing around with my Sapphire HD 7850. I was running Furmark and system froze, all fans came on 100% and I got a blank screen. I had to hold the power button down to get it to restart and know the system doesn't detect the graphics card. Using integrated graphics at the minute.

The last settings I had it at, I believe, were core 1160mhz and 1.165v. I think memory was stock. Again it's a Sapphire HD 7850 (non-OC one). Max temps were about 72°C, fans on auto hitting just under 50%.

I've restarted the PC a few times, reseated the gpu, tried it in the other PCIe slot, took it out it back in the first one. Looked in BIOS for PCIe graphics etc. Device manager doesn't see it at all, not even a yellow triangle for an unknown device.

Any ideas?

 

[Brian18741]

opps, double post, can't find the delete button!

 

[thedao]

Oc

Is this good i so far pushed my asus hd 7850 dc2 to 1150mhz core, 1400mhz memory, and 1.22 volt. I get temperature about 60-67 with fans on 40%. But i wanna ask if that is good? Because i need lot of voltage to push mine so far because if i have low voltage my driver stop answering and the screen freeze.
I see that lot of people in here easiely get 1200mhz with 1.2 etc.

 

[MonkeyKing]

Hello greetings,
I've been living under a rock when I came accross this thread in the forum. I'm a beginner you can tell.

So, I bought a Sapphire 7850 OC Edition a month ago. I've been having some experiment of overclocking with it. And here's what I got:

At core/memory/volt = 1215/1300/1210 with max temp reaching 82C.
The card survive 3DMark11 Extreme Setting, Unigine Heaven Benchmark 3.0 highest setting (except 3D), and Furmark. 3 times each, Furmark 20 minutes run once. But crashing on Lost Planet 2 Type A Benchmark and Crysis 2 HiRes DX11 single player mission after 3-15 minutes. In Just Cause 2 Desert Sunrise it crashes in 1 second!
The most stable oc of my card I concluded is at 1150/1300/1175 max temp at 76C.
Pass through hours of those benchmark softwares and game titles above without a single crash.
Question 1: What measurement of stable overclock should we hold on to, 3DMark11 & Unigine or real world gaming?

I've been enlightened to a "chirping" sound, it occurs only in overvoltage pass 1100. I'm pretty sure it's from my graphic card, positive.
Question 2: Is it bad to have a chirping? Is my card dying or can it take the average oc 1150/1300/1175 for daily gaming?

Question 3: Is oc-ing memory more risky dan oc-ing core? Since my card doesn't have memory heatsink. How much memory clock you guys think I should set it at?

Question 4: How significant does power supply affect Graphic Card overclocking?

Things you should know:
Instead of using TRIXX which set fixed clocks all the time, I actually use CCC overdrive limit hack so that it idles at (core/memory/volt) 0300/0150/0825 and multimedias at 0450/1250/0900. It's only bumped up to 1150/1300/1175 when I'm gaming 3-4 hours a day with temp 68C-77C, temp depends on games heaviness.

Thank you so much for your precious time, and hoping for some advice from seasoned and experienced in this forum

Where can I post my spec?
i3 2100 3.1GHz / Asrock H61M-HVS / Sapphire 7850 OC Edition/ 4GBx2 Corsair 7-7-7-20 / Seagate 7200rpm 1TB / 1080p / FSP Supersonic 550 watt

 

[MORE SPEED]

Hello greetings,
I've been living under a rock when I came accross this thread in the forum. I'm a beginner you can tell.

So, I bought a Sapphire 7850 OC Edition a month ago. I've been having some experiment of overclocking with it. And here's what I got:

At core/memory/volt = 1215/1300/1210 with max temp reaching 82C.
The card survive 3DMark11 Extreme Setting, Unigine Heaven Benchmark 3.0 highest setting (except 3D), and Furmark. 3 times each, Furmark 20 minutes run once. But crashing on Lost Planet 2 Type A Benchmark and Crysis 2 HiRes DX11 single player mission after 3-15 minutes. In Just Cause 2 Desert Sunrise it crashes in 1 second!
The most stable oc of my card I concluded is at 1150/1300/1175 max temp at 76C.
Pass through hours of those benchmark softwares and game titles above without a single crash.
Question 1: What measurement of stable overclock should we hold on to, 3DMark11 & Unigine or real world gaming?

I've been enlightened to a "chirping" sound, it occurs only in overvoltage pass 1100. I'm pretty sure it's from my graphic card, positive.
Question 2: Is it bad to have a chirping? Is my card dying or can it take the average oc 1150/1300/1175 for daily gaming?

Question 3: Is oc-ing memory more risky dan oc-ing core? Since my card doesn't have memory heatsink. How much memory clock you guys think I should set it at?

Question 4: How significant does power supply affect Graphic Card overclocking?

Things you should know:
Instead of using TRIXX which set fixed clocks all the time, I actually use CCC overdrive limit hack so that it idles at (core/memory/volt) 0300/0150/0825 and multimedias at 0450/1250/0900. It's only bumped up to 1150/1300/1175 when I'm gaming 3-4 hours a day with temp 68C-77C, temp depends on games heaviness.

Thank you so much for your precious time, and hoping for some advice from seasoned and experienced in this forum

Where can I post my spec?
i3 2100 3.1GHz / Asrock H61M-HVS / Sapphire 7850 OC Edition/ 4GBx2 Corsair 7-7-7-20 / Seagate 7200rpm 1TB / 1080p / FSP Supersonic 550 watt

1) I used Unigine as it seems that if it's stable there, it's stable in real world scenarios.

2) It shouldn't be bad on the card at all, but if you're overloading the PSU that could cause some damage.

3) Overclocking the memory doesn't really do much in terms of fps, so 1350/1400 will be fine.

4) Not too sure on this one, but make sure you're using a quality 80 plus PSU.

Also, have you tried Asus GPU Tweak, as you can set 2D and 3D clocks in it.

EDIT: just realised you have a decent PSU, so thats fine. You can post your spec in your signature using the User CP button near the top.

 

[Brian18741]

Hey Guys,

Been messing around with my Sapphire HD 7850. I was running Furmark and system froze, all fans came on 100% and I got a blank screen. I had to hold the power button down to get it to restart and know the system doesn't detect the graphics card. Using integrated graphics at the minute.

The last settings I had it at, I believe, were core 1160mhz and 1.165v. I think memory was stock. Again it's a Sapphire HD 7850 (non-OC one). Max temps were about 72°C, fans on auto hitting just under 50%.

I've restarted the PC a few times, reseated the gpu, tried it in the other PCIe slot, took it out it back in the first one. Looked in BIOS for PCIe graphics etc. Device manager doesn't see it at all, not even a yellow triangle for an unknown device.

Any ideas?

Ok quick update .So I brought the GPU into a local PC hardware shop and they kindly stuck it into one of their machines and it was detected. They didn't have CCC drivers but it was detected none the less and they were getting a video signal from it.

I tried it again in mine since incase plugging it into their mobo "reset" it to default (from the OC'd voltage) but still nothing. Also deleted MSI Afterburner and ASUS GPU Tweak just in case the problem was the OC and they were loading it at the higher setting. Completely removed all ATI/AMD drivers and folders (even in registry) but that didn't help either.

Looks like it's my mobo (ASRock Z77 Extreme 4)? I don't have another card to test in it though.

 

[MORE SPEED]

Ok quick update .So I brought the GPU into a local PC hardware shop and they kindly stuck it into one of their machines and it was detected. They didn't have CCC drivers but it was detected none the less and they were getting a video signal from it.

I tried it again in mine since incase plugging it into their mobo "reset" it to default (from the OC'd voltage) but still nothing. Also deleted MSI Afterburner and ASUS GPU Tweak just in case the problem was the OC and they were loading it at the higher setting. Completely removed all ATI/AMD drivers and folders (even in registry) but that didn't help either.

Looks like it's my mobo (ASRock Z77 Extreme 4)? I don't have another card to test in it though.

Got another HDD to try a clean install?