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AMD - How To Overclock The Official Way Using Afterburner + Step By Step Overclocking Guide + Comple

I got my MSI Twin Frozen 7950 and it seems to be furmark stable at 1150mhz 1500mhz on the memory. I set it to a fixed volt of 1.25 but on furmark it only went upto 1.164. Is this normal?

I am wondering if I can get it to 1200mhz on the core.

Try increasing the voltage more or less to see if it changes in gpu-z. That looks a bit too much to be called vdroop.
 
What do I need to be looking at in GPU-z? What table and what line?

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I initially overclocked using this guide and MSI afterburner. It's been fine until just now when I installed the new AMD beta drivers.

Now MSI afterburner does not let me overclock above 1200 / 1650 where as before I had 1237 / 1680 stable. Does your overclock reset each time you update drivers?

I see your guide has changed a little since before, should I just overclock again using the updated guide?

I think the drivers and afterburner have been updated since then. If you are using the latest beta of afterburner, which is beta 7 just tick 'Extend Official Overclock Limits' and restart your pc.

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Ah yes that did the trick. Thanks!

Do you think with new drivers and a new afterburner I could try to push the overclock a little more? I had reached my max on the non-beta afterburner and previous AMD drivers.

I actually found that the new beta of afterburner suffers less voltage drop so as a result you get a little bit more for your money so to speak. Nothing massive but another 10-20mhz on the core.
 
I've read through this thread and am trying my hand at my first ever gpu OC.

Got an MSI R7950 twin frozer through the post today.

It's core clock is 960mhz w/ 1125 volts. So far i have got it up to 1150mhz core without upping the voltage(temp 63'), but any higher and i get a driver crash.

Anyone know how far i can push the volts on this card?

BTW my ASIC score is only 52.1% how will this affect the OC?

Cheers

You probably need to now start increasing the core voltage to improve the core overclock, assuming the card is not voltage locked. You should be perfectly safe up to 1.25v, however if you wish you can go up to 1.3v.

Asic will play no part. You have a very low asic. This means your cards requires a higher voltage to reach the stock clocks. However your card will accept more voltage and will run cooler because of the high leakage with lots of voltage applied.
 
I understand when pushing a cpu overclock too far and your pc crashes you can do a bios clear cmos to get it to boot again safely but if you push a gpu overcolck too far how do you get back safely into windows at stock gpu speeds?

Restart your pc after every gpu crash when overclocking then you're good to go again.
 
Now that you've updated your drivers and installed afterburner you're ready to begin overclocking your AMD card. You will need the following.

Unigine Valley - http://www.techpowerup.com/downloads/2208/Unigine_Valley_Benchmark_1.0.html

GPU-Z - http://www.techpowerup.com/downloads/SysInfo/GPU-Z/

Before we actually begin overclocking lets just make sure your afterburner settings are correct. Copy these settings.

WCWp3Gz.jpg


You should also make sure that you're using an aggressive fan profile so that high gpu temps do not restrict your overclock. You can either create a custom profile in afterburner under the Fan tab.

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Or you can just set it manually to 100% or however loud you can tolerate during this overclock.

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Next we need to find out if your GPU is voltage locked. If you don't see an option to change the voltage in afterburner like in the picture below and you have ticked 'Unlock voltage control & monitoring' in afterburner then your card is voltage locked. Or afterburner is unable to change the voltage on your card.

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One other way to check if your card is voltage locked, and a much more reliable way is to use GPU-Z which we downloaded earlier. Simply run GPU-Z, go to the sensors tab at the top. At the bottom you should some voltages. The main one to look for is VDDC, this is the main core voltage for your card. MVDDC relates to memory voltage.

W16RY84.jpg


Your card should be running in a ULPS state. (Ulta Low Power State) So the clocks and voltage will be low. What we need to do is trigger 3d clocks to ensure you can make a change to the voltage in afterburner and then see if the voltage bumps shows up in the GPU-Z sensors tab. If it doesn't then you're voltage locked. To do this we will use the Basic Preset on Unigine Valley.

IqnSpqw.jpg


With Unigine Valley running in the background go into afterburner and increase your voltage to 1.3v. Now go back to GPU-Z and see if your voltage has increased above its stock value. For me that was 1.112v. Here is what mine looks like with 1.3volts applied through it.

9wtEX9I.jpg


Ok so now you should know whether or not you can change voltage. If you can great the force is strong with this one. If you can't lets hope you still have enough headroom at stock voltage to do some overclocking.


The Overclocking Guide - The Core

Put everything back to stock settings. Voltage, core and memory. Run Unigine Valley, use the extreme preset.

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Assuming you complete the benchmark safely and get to the final screen and get your score. Exit the benchmark, go back into afterburner and bump your core speed 25mhz.

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Now run the benchmark again. If you pass the next benchmarking run successfully with no crashes or anything, bump another 25mhz and do it again.

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At some point you will reach a stage where your overclock tops out. You suddenly start getting crashes, error messages, black screens, driver stopped responding messages. At this point you have two options. Back out and settle for what you've got or carry on but start adding voltage. If you're voltage locked and have to back out, reduce the core speed by 25mhz and go play some games. Generally games require slightly lower clocks than benchmarks to be stable, so backing off 25mhz should be enough to see you fully game stable.

Those of us with voltage unlocked cards may continue. Assuming you reached a stage where by the benchmark froze, crashed, black screen or you have a driver stopped responding message. Immediately restart your pc. Once back into windows apply your overclock settings and this time bump the voltage up a notch. I say a notch, its actually 6 clicks to the right of the voltage tab as seen in this picture below. Note my default voltage was 1.112v.

pI8jiXW.jpg


So with my voltage now bumped up a notch i complete the next benchmarking run successfully. I then rinse and repeat and bump my clocks another 25mhz.

z1fxWMa.jpg


Unfortunately this time the benchmark freezes and i get a black screen. So i immediately restart my pc, get back into windows apply my clock settings + fan settings and give the voltage another bump.

AvHjvIk.jpg


Now keep going until you reach a limit you're happy with. Or until you get to a stage where despite how much voltage you add the card will not remain stable. Your card might also artifact at high core speeds if it does not like them, or if its getting too hot. Generally the higher you go on the core, the more you need to keep temps in check. Try to stay at or below 75c for heavy overclocking. Ideally 70c or below is best for large overclocks. If the card gets too hot it will cause a driver crash.

Once you're happy with your final core speed and voltage settings, give it one extra bump of voltage to help ensure 100% stability when gaming. You might find you even need two extra bumps of voltage to be fully game stable. Get playing some demanding games to find out.

So this is the limit i reached on my card. Any higher and i struggle to keep the temps under control. I'm happy with this and this will be my maximum core overclock.

Zp3myro.jpg




The Overclocking Guide - The Memory


Now we will use the same procedure to overclock the memory. So we start with the memory at stock, we add 25mhz onto the memory and run unigine. Providing we complete the benchmark safely then we add another 25mhz onto the memory. Keep going until you get a crash, freeze, pc hang, or some weird stripes down the screen, or a decreased or lower benchmark score.

Sometimes memory has error correction built in so if you see your typical benchmark score lower, or you see reduced fps on the screen you will know your memory either needs more voltage or to be down clocked slightly.

Not all cards have memory voltage. If yours does you need to click this arrow button in afterburner.

MX07L6W.jpg


So we use the same method as before. Adding 25mhz onto the memory until we get stability problems. Then you can either add another notch of voltage like so. Note its also 6 notches to the right.

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Or you can back off the memory speed 25mhz and get on to some game testing if you don't have memory voltage control or you're happy with the speed you've reached.

As i pushed my memory up to 1750 i had a weird crash, with stripey lines on my screen.

rHijQ38.jpg


aY9RJfp.jpg


That means my memory has reached its maximum stable speed and exceeded it. So i bump the memory a notch, and another notch after that. After some more benchmarks, clock increases and voltage bumps i finally decide to settle on final clocks and voltage of 1825mhz and a memory voltage of 1.625v.

Hzzpfad.jpg



As before the same rules apply. I will probably need an extra notch of voltage on the memory to be fully game stable so i bump the memory voltage up to 1.631v and go off to test some games.


If you have any other questions, don't hesitate to ask. :cool:
 
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Thanks guys i wish i had reserved a post now at the start. That is one long winded OP. Gonna have to tidy that up at some point. :p
 
When analysing AMD entries using Driver Fusion, I couldn't delete some of them. It stated that I needed to upgrade to Driver Fusion pro in order to delete the rest. So I just went ahead and installed 13.5 beta anyway. Would it matter ?

No however if you use the version i posted in the OP and check the included rar file for more detail you won't encounter that issue ever again, if you get me...

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Is there still an extra step needed for people using crossfire? If so, can you update the first post with that information, or include a link to it?

Yes you should tick to disable ULPS. I will add that in somewhere as its not very clear now. Cheers Me.

What would be the highest acceptable temp when overclocking 5850 ?

Edit: I have noticed that even with using Extreme HD preset @ 1080p, my 5850 usage is only 55-60%. :confused:

Not 100% sure of that card probably around 90c.

What is your cpu? Probably a bottleneck.
 
Q9650@4Ghz


So far overclocking the core and it passes Extreme HD benchmark at 900Mhz comfortably. However upping the core to 925Mhz results in artifacts and black screen. So my 5850 is stable at 900Mhz core overclock. Will overclock the memory now and see how far it goes. Btw my non-reference sapphire 5850 is voltage locked.

Ah that cpu should be fine with that gpu then id imagine. Does seem strange you're not getting full gpu usage though. As you have an older AMD card probably best off using 13.4 WHQL drivers and 13.4 Caps file if you aren't already. Low gpu usage can also be a sign that the core clock is struggling as well so make sure you give it a good test of games to see if its ok.
 
A quick question I have wf3 7950 underwater with a aquacomputer block I'm currently running1150/1450 @1.225v for my 24/7
And 1240/1540 for my max @1.3v
Both run very similar temps which I believe (at work) to be around 45c core 47c 0n memory whilst gaming
My question is what is a safe voltage for 24/7 on water? And what are safe clocks for 24/7 to avoid damage?or are clocks irrelevant and only the volts and temps make the difference? And can I push further voltage wise or would this be unwise?

1.25v is perfectly safe and so should 1.3v be as well providing you keep temps in check. Your temps are excellent so i wouldn't worry too much. You can go higher than 1.3v i believe with some tools but that could potentially shorten the life span of your card. Maybe it will be ok for suicide runs but for 24/7 i wouldn't advise it.
 
I need to learn to overclock my 7970's memory,never really dabbled as I use trixx but need to learn to use afterburner so I can up the mem voltage

do you need much more than stock 1.6v? im limited to 1500mhz on stock v,up from standard 1375mhz

With a 7970 you can typically reach 1700+ or higher before you need to add voltage to the memory. I prefer not to go crazy on the memory voltage personally though and try and keep it below 1.638v if possible.
 
1700+ game stable?

I havn't tried with this new cooler and heatsinks yet but last time I couldn't go much above 1500mhz and it would lock up in games

I can do 1750 stable gaming without touching the voltage and my memory is only an average clocker in total. Uncle Pete's 7970 can go much higher than mine.
 
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