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7950 bios

P4Clock

P4Clock

P4Clock

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What is the best none boost bios for a reference board 7950.

Now i may be wrong and i would like to be for the easy of it, but am i right in thinking when overclocking the 7950's your best with a none boost model? that's what i was told back in the day when i had mine.
 
I have 7950 vapour-x's which have a boost button which switches the bios, the only difference between the bios's is that one has a extra 3d clock that it switches into under heavy load, where as if gpu usage isn't high it will just run the regular non boosted 3d clock speed.

Editing a 7950 bios is really easy heres how to do it:

Step 1, get GPU-Z and download your bios from the card,
Step 2, get VBE7.0.0.7b, load the bios and then you can change the clock speeds of the bios directly in there, and all the voltages, the default fan profiles etc the lot then save your new bios
Step 3, get ATIWinflash, load it up, load your new bios and click flash to your card.

Remember to make backups etc, What I do is, when I have my boost button pressed (ie, using the 2nd bios the boosted one) for the 3d clock, I just make the boost and standard 3dclock the same, so that the moment you open a 3d application the card is running full speed anyway and doesn't change down to a a regular 3d clock.

Hope this helps :)

Edit: heres a picture of what VBE7 looks like:
100710_pplay.png
Clock #4 is the 2d clock, clock #5 is the clock the card will default to when booting up etc so don't change the values of this clock,
Clock #6 is the 3d clock, Clock #0 is the Boost 3d clock, them two I set the same when editing a Boost bios so that the card is always at your overclocked speed you are wanting, a non boost bios wont have the extra clock, so just set it as you would

:)
 
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I have both card running the same oc bios but CCC keeps dropping card 1 to stock clocks is that just a problem with CCC and I need to reinstall or can it be reset is some way? I don't want to have to reinstall ever time I change the bios to change oc's
 
It down clocks when under heavy load? Try changing the tdp of the cards up to 250 and then see if that cures it, it sounds like it is being throttled. What are the temperatures like? Iv never had to reinstall ccc when editing a bios
 
This is at idle, in gpuz it reported the set clock speeds, it's there were it reported the clocks set to stock.

If I go to after burner and tell it to sync with card two it runs fine at my clock speeds, I did some benching before changing the bios so I had an idea of stable clocks
 
if you look at the tow CPU-z screen shots you can see that both cards have the same default GPU and ram clocks but cards one is running slower.

gpu1_zpsa5b98c70.gif

gpu2_zpsd03064b5.gif
 
P4Clock said:
This is at idle, in gpuz it reported the set clock speeds, it's there were it reported the clocks set to stock.

If I go to after burner and tell it to sync with card two it runs fine at my clock speeds, I did some benching before changing the bios so I had an idea of stable clocks
Click to expand...

So, you have it working fine then now using afterburner?

I only use bios editing for setting voltages really, iv got one Hynix and one elpida card, the elpida memory doesn't overclock at all hardly, it can only reach 1500 @ 1.65v (which is stock elpida memory voltage) where as the Hynix is 1.5v stock and reaches 1700mhz.

But both cores on mine reach 1200 nicely I have them both set at 1.2v vcore in the bios, and I have the bios clocks @ 1100/1400, then I use afterburner to set my overclocks and fan profiles etc, its easier than making a new bios just to overclock every time etc :)

But if you wanted, once you find the limit of your cards, just set that in the bios and no need for afterburner, but I like afterburners osd etc.

Your lucky with two Hynix's, you should be able to get 1200 core, and 1500 memory easy and if your lucky up to 1700mhz memory.

But with that said keep a eye on the Hynix's memory temperature in gpu'z for me though it clocks a lot lot better than the elpida, the elipda has a much better ventilated ram sink inside the gpu cooler, which isn't very usefull when it doesn't clock good on the elpidas memory lol
 
Right now I have the stock coolers with no ram cooling. I will be putting under water

That is some very interesting number from you. I need to spend some time working on the clocks

Also this may be silly but with out one bank of memory been used in CF can I just fined out what card as the better ram and under clock the other in position2
 
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P4Clock said:
Right now I have the stock coolers with no ram cooling. I will be putting under water

That is some very interesting number from you. I need to spend some time working on the clocks

Also this may be silly but with out one bank of memory been used in CF can I just fined out what card as the better ram and under clock the other in position2
Click to expand...

Hmm what I meant was about vram sinks was the sink under the gpu cooler on the vaporx, you will see it if you look closely it's the width of the graphics card they all have them. But what I meant was though the gpu cooler is fantastic the vapor x the ram sinks aren't very good on them, try keep vram temperature below 100c when overclocking or you will throttle, throttling starts at 120c vram. And gpu throttling at 100c .My cards average 65c and 85c vram and Iv got my fan profiles so they both sit at 40% fan speed, they some times touch 70c when playing elder scrolls online for hours, also how I have my cards in my case using a riser both cards are always 100% identical temperature which is useful :) and they are a constant 40% fan speed in games because Iv got good airflow in my case. And idle fan speeds are set to the lowest
 
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Mmmm I am now more interested than I was at the start. I just wanted a bios to run my 975/1275 oc, because of the number you gave I just had a play and the card is stable at 1500 mem and 1175 core with a very ruff volt bump.
Mm thinks I need to get some blocks and have a real play. At the crunt price I may get a 3rd card
 
IceShock said:
then I use afterburner to set my overclocks and fan profiles etc, its easier than making a new bios just to overclock every time etc :)

But if you wanted, once you find the limit of your cards, just set that in the bios and no need for afterburner, but I like afterburners osd etc.
Click to expand...

Just curious why you dont use AB for everything? I've always used AB so set the speeds and voltages, is there some advantage to overclocking in the bios other that been able to change mem timings i guess.
 
BluD said:
Just curious why you dont use AB for everything? I've always used AB so set the speeds and voltages, is there some advantage to overclocking in the bios other that been able to change mem timings i guess.
Click to expand...

Always had problems, with my 290 there is a bug that will just make the gpu run at 100% till you power off the system. It uses a tone of system memory. Only good thing is the amount of info it can give you.

If you clock is solid why not bios flash it and let it run from boot without having a program running in the background

For over clocking most amd cards you better off with trixx's

I like that you can set all the clocks so you can have the ram a little lower when not boosting, playing a DVD with memory set to 1700 will make stupid heat for no reason, my 290 runs at. 87c with just a film on because it run with balls to the wall at all times
 
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P4Clock said:
Mmmm I am now more interested than I was at the start. I just wanted a bios to run my 975/1275 oc, because of the number you gave I just had a play and the card is stable at 1500 mem and 1175 core with a very ruff volt bump.
Mm thinks I need to get some blocks and have a real play. At the crunt price I may get a 3rd card
Click to expand...

Yep, I just did some digging in my benchmark results.

The result of a 1125 core clock on firestrike = Graphics Score 15870
and the results of a 1200 core clock = Graphics Score 16942

So that's 1100 points from just 75mhz each card, so compaired to the stock 950 or what ever the stock clock is, the gains are immence on these cards.

And the 3dmark average went up 7fps average from just 75mhz each cards.



You have to get a generic gpu block that fits a few different cards as they never ever made a full gpu block for a vapour-x 7950 as it isn't reference.



BluD said:
Just curious why you dont use AB for everything? I've always used AB so set the speeds and voltages, is there some advantage to overclocking in the bios other that been able to change mem timings i guess.
Click to expand...


The 7950 Vapor-x is voltage locked in AB unless you force a constant voltage at the amount you set, therefor the card doesn't go down to idle voltages if you force a constant voltage, So I edit the bios to set a higher voltage.

Also, I set the TDP higher in the bios so that my cards never run out of power and will never throttle and I removed murged the boost and regular 3d clock together so that it effectively just has one 3d clock @ the speed that I set it at.
 
P4Clock said:
Always had problems, with my 290 there is a bug that will just make the gpu run at 100% till you power off the system. It uses a tone of system memory. Only good thing is the amount of info it can give you.

If you clock is solid why not bios flash it and let it run from boot without having a program running in the background

For over clocking most amd cards you better off with trixx's

I like that you can set all the clocks so you can have the ram a little lower when not boosting, playing a DVD with memory set to 1700 will make stupid heat for no reason, my 290 runs at. 87c with just a film on because it run with balls to the wall at all times
Click to expand...

Yep, for watching dvds etc they use Clock #5, which is the same clock speeds the card uses in the booting phase before drivers etc kick in or a 3d application etc.

Edit, also pal how much 3dmark firestrike score are you getting? im scoring 12k, but iv got a old 2500k :p
http://www.3dmark.com/3dm/4625155
 
http://www.3dmark.com/3dm/5346339

Not that far ahead my overall score cause of my cpu :p

But the graphics scores:

Yours: 46257
Mine: 51916

I had to run 1150/1450, for some reason I got a few artifacts because of the really high fps on that test at 1200/1500, so I guess ill have to tinker with it when I have more time, but for games and firestrike it runs solid at 1200/1500

Also, im downloading the new 3dmark now didn't realise there was a update
 
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