****7950 (disabled) BOOST BIOS thread****

[IC3]

****7950 (disabled) BOOST BIOS THREAD****

I TAKE NO CREDIT FOR THIS, ALL CREDIT GOES TO kahboom from Overclock.net!

After a long research on various forums there's finally a way to get round annoying BOOST function which made your Overclocking unstable, kept constant 1.25v and the jumps underload which caused big FPS drops. This BIOS modded by kahboom from Overclock.net Forum disables the annoying BOOST function which allows you to have lower voltage's with higher clocks, there are 4 profiles with clocks 1Ghz+ and the good thing with this BIOS is it works like an update for your factory BIOS so you don't have to do anything accept from flashing. So what are the real advantages of this BIOS?
- Lower voltage in idle and load
- Lower temperatures with higher clocks
- No annoying FPS drops during gaming
- 50+ power and raised 1.30v voltage limit
- No need of running overclocking tools as you have 4 profiles with different clocks 1Ghz+ to choose from.

****kahboom official thread****

NOTE: If you card is not on the list and you would like to have an modded BIOS, you can kindly ask kahboom on overclock.net forum to make you a modded BIOS. You can also visit kahboom's thread for further explanation & info.

Overclocking Software
MSI AB Beta 14+ works with the modded bios code! ***UPDATE***
Guide on how to flash your card (windows & USB method)

Windows Method

Bootable USB Method

***Download***
Working Stable Daily Ghz Profiles

HIS7950 Boost Ghz bios.zip
HIS ICE-Q Boost HD 7950 Boost Edition, 1070core 1500memory, Voltage between 1.098v to 1.180v depending on ASIC, 50% powertune, Boost function disabled. Additional profiles added.
Only 1 profile with lowered voltage [BETA] 1070/1500, Voltage between 1.090v to 1.150v depending on ASIC
HIS 7950 IceQ low voltage.rar

MSIr7950.zip
Non Boost version Msi Twin Frozr III HD 7950 1070core 1500memory, Voltage scale between 1.090v to 1.150v depending on ASIC, 50% powertune.
UEFI MSI TF3 HD 7950 bios same as above just UEFI as well
MSI TF3 Non Boost HD 7950 UEFI.zip

MSI Boost TFIII Oc 7950.zip
MSI Twin Frozr III HD 7950 Boost Edition, 1070core 1500memory, Voltage between 1.098v to 1.180v depending on ASIC, 50% powertune, Boost function disabled. Additional profiles added.

Sapphire 7950 Ghz.zip
Sapphire HD 7950 Non Boost version 1070core 1500memory, Voltage scale between 1.090v to 1.15v depending on ASIC, 50% powertune

XFX7950.zip
XFX HD 7950, Model 795A-TDJC, 1050core 1325memory, Voltage Scale between 1.13v and 1.20v depending on ASIC, 50% powertune



Remember

Before flashing remember to have the switch at position 1!

!!!WARNING!!!

I am not responsible for any damage done to your card! You flash the card at your own risk!

 

[IC3]

Thanks IC3 I'm going to try this. However what is the default voltage of the bios? I know your cards asic is 79% but mine are in the mid 60's so i require a bit more voltage than you.

I asked kahboom, waiting for reply.
But it says 1.180v so it should be enough for yours as well but let me just check with him to be 100% sure

 

[IC3]

Yeah i checked the content looks like it'll be fine as i can run 975 core at 1.125v. Not tried for higher yet.

"HIS ICE-Q Boost HD 7950 Boost Edition, 1070core 1500memory, Voltage between 1.098v to 1.180v depending on ASIC, 50% powertune, Boost function disabled. Additional profiles added."

I run the 1070/1500 profile and tested it on BF3 64 map, Metro 2033 and 3dmark 11. With no problems...
Good luck with flashing

EDIT:

kahboom said that this modded BIOS works like an update for your current BIOS. So me thinking logicly is that the BIOS will recognises your ASIC and set the voltage automatically.

 

[IC3]

Bios flashed and working A ok. Need to test some games but everything has gone smoothly. I wonder if this fixes the TDP issue, so that you don't need more than 20% power control now? I suppose it must do with the super high boost voltage taken out. This is a big discovery for AMD Boost users, drink it in folks.

For the BIOS to work properly you don't have to run any Overclocking tools.
This BIOS works as it was a non boost.

A small cut out from the conversation on PM

"Plus your card runs stock at 1.25v as i see no matter what you had put. I have lowered to 1.18v and want you to try these, don't worry im making another one after this, but it seems to have worked well with boost cards. By making the card think this is the stock profile it manages to throttle under load and use the power savings feature that it is supposed to use, lowering temps under load, while gaming, and every day task. 1-2% loss in fps vs using an overclock tool and forcing voltage but, 4-6c lower temps, correcting check sum and zipping now."

 

[IC3]

LtMatt, What do you mean by "flying colours"? Artifacts?


EDIT:

The voltage (provided the VRM table was fully edited) should scale depending on ASIC.

In other words, stock voltage should still change based on ASIC value.

Exactly

 

[IC3]

No its just an expression. It works perfectly!!

Ok, finally a BIOS that shows what the card can do. I will get round overclocking tomorrow to see how the BIOS behaves when you overclock to 1200/1600 or similiar.

 

[IC3]

Yeah nice one.

It will be the moment of truth tomorrow as a brand new his 7950 ice-q arrives. Will see what the asic is on that one. I bet you pg tips life savings the asic is between 60-69.9%. Hopefully that will accept the new bios and then its happy days.

Yep, make sure to report back on what temps and OC you get.
Who knows? You might be lucky and get a card with higher ASIC

 

[IC3]

LtMatt, Same here I could probably do 1225/1625 as at 1200/1600 while I had BOOST bios that was the max. Accelero is a very good cooler and it's so tempting but currently OCUK sadly don't have them in stock.
Watercooling whole system was something I wanted to do with my current build, but the costs are too big...

EDIT:

anyone had any issues with the memory clocks on these bios's? not tried clocking mine yes so still @1250, 1400 seems like it could be quite a bump.

There are 4 profiles with different clocks.

 

[IC3]

Me personally I flash through Windows as I'm lazy... But the dual BIOS saved my card 7 times now, lol. So if you don't have a dual BIOS switch do it through DOS, and I would say you do it through DOS as well.

If you want to flash through windows - http://www.overclock.net/t/1353325/tutorial-atiwinflash-how-to-flash-the-bios-of-your-ati-cards

 

[IC3]

I take that as a no then as stock clocks for the memory are 1250 and the bios's are either 1400 or 1500.

Just wanting to check before I flash

If you have overclocked your memory before you should roughly know what your card can do, nearly all of the cards reach 1400 from what I know.
Make sure to do a backup of your BIOS just in case

 

[IC3]

Make sure to not touch the voltage on memory, to see how high it will go on stock.
My went to 1600 on stock voltage. I currently run the profile with 1070/1500 1.180v and had no problems - http://scr.hu/0ozg/l9bti temps speed fan auto.

EDIT:

I'm glad that this works for you as well, BIG THANKS TO khaboom! He did all the work, I was just testing and reporting back to him.

 

[IC3]

Which profile did you pick?
I'm thinking of trying out 1000/1400 to see what voltage I might have. At the moment running Trixx to lower the voltage to 1.14v

 

[IC3]

The 1.180v 1100MHz one, AB is still working for oc'ing too, thought it wouldn't work?

Btw matt, mines would never fit behind the tree, the tip would protrude.

MSI AB is very glitchy with modded BIOS and even thou it shows you that OC it might still run stock 1070/1500 or whatever profile you picked.

 

[IC3]

Good to hear bodybag. Any idea what the problem was?

He set the 1500 clock on other profiles where the clock should have been 1400.
I also got a message from khaboom about lowering voltage on these profiles. Waiting now for him to finish modding the BIOS, as soon, as I get the BIOS will run some benchmarks.

 

[IC3]

Ah good stuff can you post a link to the new bios as and when its posted.

Yep, no problem I will update this thread once the BIOS will be ready

Hi

at 1500, I get tiny red dots in Metro. Now if I set it back down to 1450 all is ok. but as soon as I restart PC it jumps back up to 1500, the underclocking is not sticking.

In GPUZ, it reports 1500, but I flashed the 1400 mem bios..I also tried 1050 1400 and memory still shows as 1500. I have re-installed drivers/trixx aswell

It seems that no matter what bios I flash to it, it sticks on 1500 memory...

Fixed

EDIT:

I've tested the BIOS with lower voltage, kahboom will update the profiles in no time.

EDIT:

Before

Now (Lower Voltage)

 

[IC3]

I've been reading this thread with interest and I'm interested in giving this a go. Very daunting though, as I've never flashed a GPU before. Are there any good guides?

My card is a MSI 7950 TFIII Boost Edition and I've got it running at 1140/1500. As my ASIC is quite low at 67.7%, is there much benefit in flashing my card? I'd like to continue running my current overclock so will I be able to do so at a lower voltage? Can my overclock go higher with this new BIOS?

Thanks in advance, sorry if these are stupid questions.

Make sure to have the swithc at position 1 which you can find next to crossfire.

http://www.overclock.net/t/1353325/tutorial-atiwinflash-how-to-flash-the-bios-of-your-ati-cards

or

Flashing through DOS

http://www.techpowerup.com/forums/showthread.php?t=57750

I flash through Windows but lots of people don't like to do it that way. I never had any issues by using Windows Ati flash
After flashing make sure to reinstall drivers and OCing tools e.g. MSI AB

 

[IC3]

Don't thank me, but kahboom from Overclock.net

GPU-Z log from playing today for 30 min. http://wklej.org/id/1064997/

 

[IC3]

This bios makes msi afterburner work with my his cards. It also enables voltage control so i dont have to use that crappy his tool any more. Very happy.

I chaged Trixx to MSI AB as well, had problems with Trixx which were very annoying
kahboom still didn't upload the profiles with lower voltage but I will edit this post with a link to that BIOS as it works.

EDIT

HIS 7950 IceQ low voltage.rar

 

[IC3]

Is afterburner working with this bios?? Been using trixx but prefer afterburner to be honest.

Yes, MSI AB works with this BIOS

 

[IC3]

Correct the post in the OP shows bios 2 selected. You want to use bios 1 so flick the switch. Hopefully IC3 will update the picture when he see's this. Bios 2 is the protected one so never try to write to that.

Can some one just clarify for me, in the OP the picture of the bios switch is that in position 1?? the reason I ask is to me I would say that was position 2.

Just wanting to check before I flash.

It clearly says switch the BIOS to position 1

EDIT

Made it bigger, hope that helps

This is superb work guys

Sorry I couldn't help much IC, I was in the states on hols while we were emailing! But looks like you got there with Kahboom.

Can't wait to try out myself

No worries