700mhz wall on HD4850 is smashed.

[jzteam]

Well seeing one of my cards did not work well at 720 to 1.263Vgpu, I put the 2 to 700mhz wiht 1.263Vgpu, and work perfectly, without making vmode, which is the maximum voltage from the bios for this hd4850 ?
And thank you very much again from Barcelona.
This is my score whit the crossfire in 3Dmark06 :

[gurusan]

1.263vgpu results in only 1.2v actual.

[jimmyz]

jimmyz

I read other thread only a couple posts in it and it appears this program overrides the CCC file mod for the FAN, so what do ppl suggest.. FLASH bios ... ??? then use this program .... ???

Here is the thread you were talking about in Video Cards.

http://www.xtremesystems.org/forums/...d.php?t=193910

EDIT:

Just to add, does this program adjust the voltages properly???

Actually I am working on a fix right now....not me but a friend. but yes for now that should work fine.

[BeastNotro]

Great to hear someone is working on the FAN fix for this new program update. I assume if it is overclocking properly that it increases the voltages correctly. The only thing is the FAN override issue and i hope you guys can fix it, if not then we have to use RBE to adjust fan and the 2D speeds, then Flash Bios, then Overclock with this AMDGPUTOOL.

Now if it is doing the voltages correctly that means i or many others don't have to do any pencil mod or voltage mods.

[jimmyz]

Nothing besides a hard mod will raise the voltages. software will max out at around 1.25v tops. to get more either a pencil or hard mod will be needed. this software doesn't raise voltage.

[LuxZg]

Nice to hear things are progressing nicely, I've read this WHOLE thread, and I'm read to go to shop, buy me one 4850, mount my S1 on it, and than do some modding and clocking

I don't even mind this tool negating fan fix mod, since I'll be having 120mm fan on Accelero, so all I'll need is some luck And later on, perhaps a pencil mod for going over 1.2V if things won't be fast enough in games

I have to say a big THANKS to all of you that helped around clocking

EDIT: LOL! My first post! After a LOT of time lurking in here

[jimmyz]

Nice to hear things are progressing nicely, I've read this WHOLE thread, and I'm read to go to shop, buy me one 4850, mount my S1 on it, and than do some modding and clocking

I don't even mind this tool negating fan fix mod, since I'll be having 120mm fan on Accelero, so all I'll need is some luck And later on, perhaps a pencil mod for going over 1.2V if things won't be fast enough in games

I have to say a big THANKS to all of you that helped around clocking

EDIT: LOL! My first post! After a LOT of time lurking in here

Welcome and enjoy the Forum. I hope you enjoy your card and keep us posted.

[LuxZg]

Welcome and enjoy the Forum. I hope you enjoy your card and keep us posted.

Thanks for the welcome I'll sure keep enjoying the forum, like I did last few years, but I promise to contribute as well I'll be posting results of 4850 OC as soon as I get the card, I think it will be before end of the week, just in time for next weekend overclocking-frenzy

[ghost101]

Well I'm currently enjoying 830mhz core with 1329mV real. I was at 1283mV @ 800mhz and 720mhz with 1185mV(using bios mod only). It seems mine isnt a great clocker since its taking increasing volts to get small increases.

[gurusan]

1.33v at 830mhz core is not bad at all.

[ghost101]

1.33v at 830mhz core is not bad at all.

What voltage you running your memory at? And what resistance did it take? I dont accidentally want to shoot 2.3v through the RAM.

Thanks.

[gurusan]

i am running 2.13v, good for 1175mhz. I forgot the resistance, sorry....i think it's around 3.6ohms or something. Just bring it down a bit because it's sensitive.

[ibuycheap]

Once you install the voltmod, does adjusting the voltages for the bios change the voltage?

eg. would a card with a bios set to 1.08 but voltmoded to 1.4 be bumped to 1.5 if the bios were changed to 1.20.

[Ruiz]

Guess i am the only one with this problem here. I have a powercolor 4850 and i edited my bios using RBE. Clock and fans setting were fine, but then i tried to edit my voltage values from the default -- to 1.200 or 1.210 and now everytime i went to windows, my screen goes black, the red light in the card lits and the fan goes 100%. This only happens when windows are loading so i guess it happens when the driver is loaded. What could be my problem?

I already tried to uninstall completly, used driver cleaner and then install again but no luck. I am using the 8.7 beta nobody have this kind of problems here right?

One of my failed bios are attached. Thanks!!

[Rattle]

the 8.7 beta gave me much weirdness that the hotfix 8.6 did not, i ditched the 8.7. had big issues overclocking and black screens.

[regenade]

I am having issues like you with the 8.7 beta. Just use the 8.6 hotfix instead of 8.7 beta and everything should be fine
Uninstall the 8.7 beta and use the Guru3d driver sweeper before installing the 8.6 hotfix driver

[ghost101]

Guess i am the only one with this problem here. I have a powercolor 4850 and i edited my bios using RBE. Clock and fans setting were fine, but then i tried to edit my voltage values from the default -- to 1.200 or 1.210 and now everytime i went to windows, my screen goes black, the red light in the card lits and the fan goes 100%. This only happens when windows are loading so i guess it happens when the driver is loaded. What could be my problem?

I already tried to uninstall completly, used driver cleaner and then install again but no luck. I am using the 8.7 beta nobody have this kind of problems here right?

One of my failed bios are attached. Thanks!!

I had that exact problem with the 8.7 beta. Even safe mode wouldnt load. So I used system restore via the windows disc. Then used driver sweeper and reinstalled 8.6 hotfix. Luckily this was a new installation and I had forgotten to turn system restore off. Otherwise it would have been a long time reinstalling windows.

[Caped Crusader]

I had that exact problem with the 8.7 beta. Even safe mode wouldnt load. So I used system restore via the windows disc. Then used driver sweeper and reinstalled 8.6 hotfix. Luckily this was a new installation and I had forgotten to turn system restore off. Otherwise it would have been a long time reinstalling windows.

Actually, there is another way that I experienced myself. Before embracing all this let's-bios-mod-the-4850, I prepared a boot flash drive with an autoexec.bat containing a autoflash command, to revert to original BIOS. That's all it takes to make 8.7 beta to work: the original BIOS.

An then, it figures that the 8.7 isn't working very well: from what I hear, it's a beta driver for the 4870X2 ONLY.

[Ruiz]

8.6 works!! Thanks guys! Never thought a driver would do that

[Clemmaster]

I experienced that today too :| . Black screen, I had to recover my windows boot installation with the CD to get it working again. Powercolor card too, flashed with asus Bios for a while now.

BTW : AMDGPUClock tool is now about and working nicely, no need to flash our cards anymore

http://www.overclex.net/data/images/...cktool-9.8.rar Just envoy it

[RamIt]

BTW : AMDGPUClock tool is now about and working nicely, no need to flash our cards anymore

http://www.overclex.net/data/images/...cktool-9.8.rar Just envoy it

It does not increase voltages any and I "assume" most cards dont do over the limits that ccc gives us in overdrive. That being said it is an alternative for those with much better than average cards.

[BeastNotro]

It increases voltages to the max the BIOS can give, but you still need to use something for the stock FAN speed and this program overrides any XML profile... so basically you need to mod your bios for the stock FAN speed to what you want and also set the 2D speeds in the modded bios as this programs does not do that either. Then flash your bios stock speeds still ... and then use this program to Overclock to a max of maybe 750mhz on the MAX the bios will give on software Volts = around 1.2v is all.

If you want to try any higher OC then you have to pencil mod or resistor mod the card.

[zbomb5610]

just pencil modded my card, had the resistance on the resistor at .85, it is giving me 1.3 volts idle, 1.36 volts load, currently running 860/1150 w/ accelero s1. running stability tests to see if it is stable.

[RejZoR]

Is there any specific trick what to change? I've changed Clock info 3 and 7 and nothing really worked as i expected. Should i change clock info 0 too (especially the voltage part)?

[ghost101]

Is there any specific trick what to change? I've changed Clock info 3 and 7 and nothing really worked as i expected. Should i change clock info 0 too (especially the voltage part)?

Look at some of the bioses which have been posted and copy them. You need to change 3 and 6-9. Unlock all the states as well. The best you can get is 1.200v.