700mhz wall on HD4850 is smashed.

[jimmyz]

Hello thi is my first post in this forum, I am writing from Barcelona ( Spain ), I have been following the thread with the help of the google translator, I try to follow your advice
but I do not work for my 2 Asus HD4850, gurusan you can help me, I'm trying to change the bios by yours and i said winflash = do not match the id of the subsystems.
I tried to edit with RBE operating at 160/710 Vgpu 1.2, only this paramewters but not works fine,
nothing else fails start 3dmark06.

Sorry for my grammar and thanks to meet me.

To XS

some cards may not do 710 with only 1.2v not all cards will act the same. try dropping back to 700.

[I34z1k]

Sorry for a kinda OT, but has anyone had problems with the settings not sticking? I've flashed my 4870 twice now, the second time I changed all the values to 825 / 1150 respectively but now it just sits @ 500/900 or something pathetic like that :\

Any ideas guys?

[jaredpace]

Sorry for a kinda OT, but has anyone had problems with the settings not sticking? I've flashed my 4870 twice now, the second time I changed all the values to 825 / 1150 respectively but now it just sits @ 500/900 or something pathetic like that :\

Any ideas guys?

maybe reading 2d clocks?

[I34z1k]

Sheesh, I'm not sure. When I enable overdrive again I can set it and it reads correctly in gpu-z but still limited to only 790/1100

[wesleyclark]

Sheesh, I'm not sure. When I enable overdrive again I can set it and it reads correctly in gpu-z but still limited to only 790/1100

I have heard that you need overdrive off, and you cant have any profiles saved either. I dont know why but...

[jzteam]

To XS

some cards may not do 710 with only 1.2v not all cards will act the same. try dropping back to 700.

I try to push de Vgpu to 1,263 and the same history, it is impossible to start 3dmark06. You put some pictures of my bios modified, ¿ Some tips ?
Or is it possible that my card ( Asus HD4850 ) can not be overcloked ?

Gracias , Thanks.

[ghost101]

Ive used a custom bios to set 1.263v (which is the same as setting 1.2v i assume). The most I can get is 730mhz on the core. I am running an s1 with a 120mm fan with temps never going above 50C. Before this voltage increase the highest clock speed I could get was 680mhz.

Jzsteam, you should unlock all of it and change the voltages for clock info 7-9 as well. Also, use furmark stability testing to get the highest stress on the card.

Heres what I'm currently using

[jzteam]

Ive used a custom bios to set 1.263v (which is the same as setting 1.2v i assume). The most I can get is 730mhz on the core. I am running an s1 with a 120mm fan with temps never going above 50C. Before this voltage increase the highest clock speed I could get was 680mhz.

Jzsteam, you should unlock all of it and change the voltages for clock info 7-9 as well. Also, use furmark stability testing to get the highest stress on the card.

Heres what I'm currently using

Thank you for your help,¿ now this is how the image is correct ?


And as I change the values of fan ? Look the image of my fan settings, I am not leaving all options.

[ghost101]

Thank you for your help,¿ now this is how the image is correct ?


And as I change the values of fan ? Look the image of my fan settings, I am not leaving all options.

Create a more aggressive fan profile. Set Tmin to 50C and Tmax to 90C. If you dont like having the fan change speeds all the time, you can change the duty cycle min to whaever idle noise you feel comfortable with.

[jzteam]

Thank you ghost101, now works very well whit your help, tomorrow change fans by de Coolink GFXChilla and testing in the Crossfire

[AliG]

my card is pretty good in the respect that I got it up to 700/1100 with no problems and can probably go higher if I wanted to on stock voltage, just wondering, what's the pencil mod for the 4850? Last I heard changing the voltage in RBE doesn't get you very far and that you need a hard mod instead

[weirkved]

Im all stock, voltages and coolers, and i am at 725 / 1150

I think its very nice..

Although i cant run 3dmark too normally... but just add this to the shortcut and you can:

C:\Programas\Futuremark\3DMark06\3DMark06.exe -nosysteminfo

I would like if someone helps me to do some mods in the graph...
i have one 20kohm resistence..

[BeastNotro]

Hey guys been awhile since i have posted here.

I am getting a HIS 4850 and all i want is similar speeds as the 4870, can we just not flash it with a 4870 Bios?

Or

What do i have to do to get it to the speeds of the 4870?

I see Guru has a HIS card and Bios uploaded, can i just flash the card to that Bios and do nothing else?

Will i get 750mhz and whatever on the memory which Guru has set?

Should we wait for the Overclocked Versions of these cards to arrive and flash the bios with the overclocked Bios?

Thks

[jimmyz]

Hey guys been awhile since i have posted here.

I am getting a HIS 4850 and all i want is similar speeds as the 4870, can we just not flash it with a 4870 Bios?

Or

What do i have to do to get it to the speeds of the 4870?

I see Guru has a HIS card and Bios uploaded, can i just flash the card to that Bios and do nothing else?

Will i get 750mhz and whatever on the memory which Guru has set?

Should we wait for the Overclocked Versions of these cards to arrive and flash the bios with the overclocked Bios?

Thks

no you will wind up with a 200 dollar paperweight, aside from using a similar core these cards have nothing in common with the 4870. the 4870 has GDDR5 memory VS GDDR3 for the 4850, they have different chips controlling speeds and voltages also.

you could wait for some 4850 OC editions and flash to their bios or use RBE 1.1 to set the clocks you want and do either a pencil or hardmod.

[BeastNotro]

jimmyz

So if i flash with Guru's do i have to do a pencil mod?

The bios he has uploaded is the 750mhz i downloaded it and have it currently opened with RBE, the only thing i would change is the fan settings... but to what SCALE should i do?

[ghost101]

jimmyz

So if i flash with Guru's do i have to do a pencil mod?

The bios he has uploaded is the 750mhz i downloaded it and have it currently opened with RBE, the only thing i would change is the fan settings... but to what SCALE should i do?

Unless you have a peach of a card. Yes, youll need the extra vgpu.

[BeastNotro]

ghost101

Ok i may have missed it, but did Guru actually do a pencil mod for this uploaded bios?

His is a HIS 4850 and mine will be of similar product/manufacturer.

[ghost101]

ghost101

Ok i may have missed it, but did Guru actually do a pencil mod for this uploaded bios?

His is a HIS 4850 and mine will be of similar product/manufacturer.

I know his card is pencil modded. Whether he did at the stage he made that bios I dont know. The brand wont matter since the bios he uploaded uses an MSI bios as a base. They are all reference cards as well.

[BeastNotro]

Ok i suppose Guru is needed here to explain further for me as if he did so before or after this bios.

Guru where are YOU???? .. LOL

[BeastNotro]

Ok i read this ... By Guru

pencil modding is pretty easy...but you can get 1.2v with a simple bios flash and that would allow you to go to 720-750


HERE:

http://www.xtremesystems.org/forums/....php?p=3112051

Hmm i will still wait for him to post before i do anything.

[ghost101]

Ok i read this ... By Guru

pencil modding is pretty easy...but you can get 1.2v with a simple bios flash and that would allow you to go to 720-750


HERE:

http://www.xtremesystems.org/forums/....php?p=3112051

Hmm i will still wait for him to post before i do anything.

Yep, thats exactly what people have been doing. Youll have to edit your bios to give 1.2v and then attempt to find the highest core clock you can get. Like I said before, not everyone is able to get 750mhz. Its precisely what jzteam was doing on this page. He was only able to get 710mhz while I got 730mhz. I cant remember if gurusan got 750mhz purely via editing the bios though. But even if he did, you want to gradually move up towards 750mhz flash by flash. Jumping straight to it may simply cause instability whenever the aero interface or something causes 3d clocks to kick in. I suppose if you use atiflash this isnt much of a problem though.

[D749]

Over the past few days I've flashed so many variations of 4850 BIOSs (no pencil modding, etc.) that my eyes almost started to bleed. I've taken the voltage up to 1.2, core from 625-720 and memory from 993-1050. As I ratchet up the numbers I also increase the cooling. Regardless of what I tried I simply could not get EITHER one of my two VisionTek 4850s to pass every test completely artifact free!

For instance... in 3DMark Vantage (Extreme mode) during the first test if I watch extremely closely I will notice a single artifact (looks like a 1/2" square that flashes once for a second in the middle of my screen) during the part where the girl jumps into the boat and drives it out from under the camouflage cover. This happens even on stock settings. Am I just being too anal here?

[jimmyz]

Over the past few days I've flashed so many variations of 4850 BIOSs (no pencil modding, etc.) that my eyes almost started to bleed. I've taken the voltage up to 1.2, core from 625-720 and memory from 993-1050. As I ratchet up the numbers I also increase the cooling. Regardless of what I tried I simply could not get EITHER one of my two VisionTek 4850s to pass every test completely artifact free!

For instance... in 3DMark Vantage (Extreme mode) during the first test if I watch extremely closely I will notice a single artifact (looks like a 1/2" square that flashes once for a second in the middle of my screen) during the part where the girl jumps into the boat and drives it out from under the camouflage cover. This happens even on stock settings. Am I just being too anal here?

possibly. i have had various atifacts like you describe. even at stock. it seems they are onscreen for 1 frame and then you don't see it again right? I also have 1 in 06 canyon flight that looks like a couple of steps but it only flashes for like 1 frame.

[D749]

possibly. i have had various atifacts like you describe. even at stock. it seems they are onscreen for 1 frame and then you don't see it again right? I also have 1 in 06 canyon flight that looks like a couple of steps but it only flashes for like 1 frame.

That sounds like what I'm talking about. I can go through all the 3DMark Vantage on Extreme and looking closely will only spot that one square each time at the same place. To me that meant unstable but I'm beginning to rethink things.

[bakalu]

My system :

Mainboard ASUS P5Q3 Deluxe
CPU Q6600 @ 3.78GHz
RAM 2x1GB DDR3 Corsair CM3X1024-1333C9DHX
ASUS EAH4850
Windows Server 2008 Enterprise SP1 32bit

My system's picture


3DMark Vantage Score of Asus HD 4850 @ 815/1111