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

LtMatt said:
As you don't have a HIS boost card you'er probably better off asking the OP of this thread to create you one.

All you need to do is give him the bios and tell him the clocks you want and that you want it to be non boost.

Try and find out what you card requires to be stable at 1050/1500 and tell the thread OP and he will create you one. That's where we got the non boost his bios from.

The his bios might not work with yours as you have a msi card and the memory timings might be different. Didn't think of that initially when i made the suggestion.

The bios probably won't make your card a better clocker, but it will bring temps down and take away the annoying boost element and high boost voltage giving you full control, as it should be.

You could try flashing a msi 7970 twin frozr bios to your card, don't know if it will work or not. Just take a backup and reflash the old one if you get problems.
Click to expand...

Cheers for that Matt - I used to hex edit .rom files quite a bit, so might have a tinker meself rather than get kahboom to do it for me :)

Anyhow - thanks again :)
 
LtMatt said:
What were the temps like? Artifacts can either be the core/vrm/vram chips getting too hot or the core has just reached its maximum. My 7950's can only do 1150 core before they start to produce artifacts.
Click to expand...

Temps were good. 63C max.
So I should just leave the GPU well enough alone and see if I can get a little more from the memory ?
 
Hey guys, great thread!

I'm just chiming in to ask for any advice.. The maximum my Core Votlage will go to is 1.225 and that is the same for all the tweaking tools. Have I done something wrong or is that just the limit for my card? Using Sapphire 7850 2gb OC edition currently sitting at 1150mhz core clock and 1250mhz memory clock. Any advice would be great.

http://tinypic.com/r/u8ql0/5
 
Thought id post in here as received my HIS 7950 Boost on tuesday and have tried my hand at overclocking but could do with a few tips.

I did initially try to run it at 1200Mhz core, def memory and 1.25 but this produced artifacts in Heaven so I reduced the clock to 1150MHz as it was already 70-75c and I kept the fan around 80% max, it ran Heaven fine so I ended up lowering the volts to 1.175 and it ran it fine again.

Cut to today and playing BF3 it crashed fairly quickly with the above and reset the driver so after a reboot I upped the voltage to 1.225 which lasted longer but again crashed and reset the driver after about 15 minutes. I decided to lower the clock to 1100MHz and leave the voltage but have yet to test fully. Couple of questions:

Are there any automated benchmarks similar to Heaven or Heaven itself that are as accurate at testing stability as me being here playing a game myself. I ask as i'd like to leave a test running most of the night etc to test stability without actually being at the computer.

and

My Asic quality is 59.5% so this means I would generally require on average a higher voltage. I am keen to hit that 1200MHz core but is it worth risking it by going up to the 1.3v limit? Also as it was artifacting but not crashing in Heaven at 1200MHz 1.25v is it likely that the core simply can't run at that speed regardless of temp?

Cheers.

Edit:
And to add an additional question. I have a Coolermaster Silent Pro 600w this one http://www.coolermaster.com/service/support/model/RS-600-AMBA-D3/ - in the future would it be possible to run crossfire using this bearing in mind I have my SSD + 4x SATA Drives.
 
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Thanks

Thank you LtMatt. :) Great article.

Got my Powercolor 7950 PCS+ stable to core : 1200 @ 2.18v and VRAM : 1650 @ 1.613v (seems can go up more but just left it) running at 55C with 85% fan.

However decided to be less aggressive, because the voltage grew by almost 0.70v for the last 100mhz, so settled at 1100 @ 1.150v/1550 1.6v (stock vram voltage) running at 50C / 65% fan under full load.

By the time I finished, BF4 was ready :D and gave it a spin without trouble (only the HBAO bug - DirectX device removed error, so I deactivate it from BF4)

And because I was getting annoyed that had to restart all the time after awhile, I did the following trick, that might help others to speed up the process a bit.

I put the Valey benchmark, to 1600x900 - window. And used step by step 25mhz intervals until I hit 1225 core. When it was crashing, if I was quick, only the window had to close not the whole PC (happened 5-6 times though).

Windows 8.1 (Enterprise since I have MSDN account) were holding well, restarting the ATI drivers on the crash automatically.

Then when hit the 1200/1650 running fine, I run Valey (and 3dmark) at full screen on extreme, and run perfectly twice :)

Time today to crack up the new 8350 :D
(under a H50 atm, until I get the AM3 bracket to put the H100)
 
Panos said:
Thank you LtMatt. :) Great article.

Got my Powercolor 7950 PCS+ stable to core : 1200 @ 2.18v and VRAM : 1650 @ 1.613v (seems can go up more but just left it) running at 55C with 85% fan.

However decided to be less aggressive, because the voltage grew by almost 0.70v for the last 100mhz, so settled at 1100 @ 1.150v/1550 1.6v (stock vram voltage) running at 50C / 65% fan under full load.

By the time I finished, BF4 was ready :D and gave it a spin without trouble (only the HBAO bug - DirectX device removed error, so I deactivate it from BF4)

And because I was getting annoyed that had to restart all the time after awhile, I did the following trick, that might help others to speed up the process a bit.

I put the Valey benchmark, to 1600x900 - window. And used step by step 25mhz intervals until I hit 1225 core. When it was crashing, if I was quick, only the window had to close not the whole PC (happened 5-6 times though).

Windows 8.1 (Enterprise since I have MSDN account) were holding well, restarting the ATI drivers on the crash automatically.

Then when hit the 1200/1650 running fine, I run Valey (and 3dmark) at full screen on extreme, and run perfectly twice :)

Time today to crack up the new 8350 :D
(under a H50 atm, until I get the AM3 bracket to put the H100)
Click to expand...

Thanks for the tip Panos. Nice clocking card you have there. :)
 
Hi LtMatt,

Thanks very much for the guide, I had a go today and it made it a lot easier for someone who's never oc'd an AMD card. :)

This is the result I managed with a HIS 7950 Boost, I also installed the "boost disabled" BIOS today too (see http://forums.overclockers.co.uk/showthread.php?t=18519021):

nGghPtL.jpg

I couldn't get the core clock any higher with 1.225v and I didn't really want to increase the voltage higher.

Also the memory voltage is at stock 1.6v because if I increased it at all I got the "blue lines" crash, so 1675 MHz was as high as I could go.

What do you think? I'm thinking my card isn't that good for overclocking, but still a decent result. Seems to be about a 10 fps increase in games.
 
Looks good mate. Do you need the voltage that high for 1100 core? Not able to lower it further? I'd back off the vram a bit if i was you. I find higher vram needs more vcore. If i was you id aim for 1500-1575. I use 1500 typically. Its plenty of bandwidth for one 7950. Lowering the vram clock might bring your core voltage down a notch or two and this can help with temps.

I need 1.175v for 1100 core so you're in the right territory. You might be able to bring it down a bit, or you might not but always worth a shot.

I'm on crossfire so i can't clock my cards together that high for 24/7. Plus my cards don't appear to be the best overclockers. 1125/1575 is about the highest i can get in crossfire @1.2v per card with memory at 1.6. The problem i have with 1125 on the core is after temps get past 74c one of my card starts to give off a few little artifacts.
 
LtMatt said:
Looks good mate. Do you need the voltage that high for 1100 core? Not able to lower it further? I'd back off the vram a bit if i was you. I find higher vram needs more vcore. If i was you id aim for 1500-1575. I use 1500 typically. Its plenty of bandwidth for one 7950. Lowering the vram clock might bring your core voltage down a notch or two and this can help with temps.

I need 1.175v for 1100 core so you're in the right territory. You might be able to bring it down a bit, or you might not but always worth a shot.

I'm on crossfire so i can't clock my cards together that high for 24/7. Plus my cards don't appear to be the best overclockers. 1125/1575 is about the highest i can get in crossfire @1.2v per card with memory at 1.6. The problem i have with 1125 on the core is after temps get past 74c one of my card starts to give off a few little artifacts.
Click to expand...

Thanks for your advice.

Since posting I have tried Far Cry 3 and it crashed after 5 mins, so I put the vram back to 1500 to make sure that wasn't causing it. Just tried again and it lasted longer, like 15 mins before crashing again. What should I do? I guess I need even more core voltage? :confused:

edit: I'm wondering whether it's the BIOS. When I flashed it I got this message:

urlfcYz.png

Doesn't look quite right?

edit2: I have bumped the vcore voltage up to 1.231v and still get crashes @ 1.1GHz, so I reverted the clocks to stock and the game crashes even faster, before the game has loaded. So I am concluding that it must be the BIOS, hence why I'm going to post this in the BIOS thread for some help as I have no clue. >.<
 
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Amazing guide, but you forgot to mention that Sapphire Trixx 4.4.0b Mod is better for benching because it controls voltage better, and it lets you increase the voltage to 1.384v!
 
oL said:
Thanks for your advice.

Since posting I have tried Far Cry 3 and it crashed after 5 mins, so I put the vram back to 1500 to make sure that wasn't causing it. Just tried again and it lasted longer, like 15 mins before crashing again. What should I do? I guess I need even more core voltage? :confused:

edit: I'm wondering whether it's the BIOS. When I flashed it I got this message:

urlfcYz.png

Doesn't look quite right?

edit2: I have bumped the vcore voltage up to 1.231v and still get crashes @ 1.1GHz, so I reverted the clocks to stock and the game crashes even faster, before the game has loaded. So I am concluding that it must be the BIOS, hence why I'm going to post this in the BIOS thread for some help as I have no clue. >.<
Click to expand...

I don't know, you used winflash and not atiflash. You should have followed my bios flashing guide here.

Follow that guide and try using this bios if you have a HIS 7950 Ice-Q. If http://www.sendspace.com/file/5mv49f

If you have a different card maybe stick with the bios you've already got.

Try aiming for 1100/1250 using 1.2v vcore. If thats stable then try 1100/1400. If thats ok then move up to 1100/1500. Once you've got that fully game stable for several hours then worry about pushing the core further.

Rangerjr1 said:
Amazing guide, but you forgot to mention that Sapphire Trixx 4.4.0b Mod is better for benching because it controls voltage better, and it lets you increase the voltage to 1.384v!
Click to expand...

People that are going to use and benefit from this guide should not be putting that much voltage through their card imo.
 
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