HD4850 modded bios working with cat 8.8!

[steve30x]

Ive just been trying to get the new 8.8 catalyst 8.8 drivers installed with my 4870 modded to 830 / 1100 with RBE but the driver refuses to install until I reflash my bios back to the original. Ive spent the best part of 3 hours trying different things to get it to work.

First I tried editing the original bios without the fan settings changed but that didnt work. So I tried a modified inf and that failed. So I am now back to the original bios which works. Ive tried a few different bios settings and a few inf. settings but nothing worked for me. Am I the only one with this problem?

[po-chi]

same goes for me. now im using the stock bios for my 4850 toxic..

thats a known problem, right only way to install these is to use stock bios .

[aquax]

I'm using an HD4850 With a bios fan fix modded by RBE1.13 and cat 8.8 installed fine, I think you guys are using the UPPER CCC clocks feature in RBE ?

[M^LiBuQ]

aquax you are right my HD4870@Stock Overdrive Clocks and Fan Fixed Bios works with the Catalyst 8.8 no problems with install , maybe ATI has protect the new Catalyst with the Stock Overdrive Clocks ^^

cu

[steve30x]

Yes I was using the fix to raise the clocks in the CCC overdrive. That may have been the problem. I have to use ati tray tool o set the fan in my card because without it my GPU idles at 80 celcius.

[M^LiBuQ]

hmm my Fans working with the Bios Settings only problem is if you are raising the Default Overdrive Limits the Catalyst won't install , back 2 the AMD GPU Tool or hacking the Drivers , i have to look in the Install ini maybe there are the Default Overdrive Limits in there .

sry 4 my Bad English .

cu

[steve30x]

You can overclock with ATI Tray tools also.

[EastCoasthandle]

This is the risk of flashing. That a newer Cat won't work correctly or install.
That's why I created this thread making sure that whatever bios surfaces it works with newer Cats. This is not the first time I've seen this.

-make sure that using other Cat drivers doesn't adversely effect your card when you using standard or overclock settings to play your games

[LuxZg]

You can use Ati tray tools with stock bios, or you can test the new bios that is supposedly comming from ati themselves that has unlocked CCC! and upped voltages even. Not tested yet, not at hom for another 6-7 hours

oh right, and forgot to say that my bios tweaked with rbe 1,13 works fine. But only thing I did was that "one click" fix that turned my stock bios to -RBE bios with low voltages..

[steve30x]

I got mine to work with the 8.8 driver lastnight after about 6 hours of modding and testing. I didnt change the CCC limit in the bios and the 8.8 installed but if I overclocked to 830 / 1100 some of the functions (3D , Display manager and Overdrive) didnt show in the CCC so I set my bios to 780 / 1050. It works fine now.

[BAGZZlash]

My first guess is that the new catalyst now checks if clocks are set to values beyond the overdrive limit. If not, it rejects the card.
So, RBE v1.14 with working method one overdrive hacking is all the way more important. The good news is that it is to come very soon as it is ready to go now. I got two approves on working fan control for 4870X2, so as soon as W1zzard finds the time to upload the program, just open your BIOS with v1.14, mod the overdrive limit using method one (working now) and be happy!

[steve30x]

Thank yoy BAGZZlash. Ive found that the bios LuxZG posted works perfectly and all it needed was for the fan to be adjusted with RBE. I would like to thank you for your work with RBE

[akatitan]

guys.

i just got this working.

all the voltages on this bios need to be left at "---" apart from the 01,and 02 clocks which i needed to lower to .94v so not to overvolt when going into windows vista (the black screen problem!) you can problibly change it back to 1.048v if your not hard moddied and lower clocks on 03,06,09 to wherever you card is stable. i think powerplay 2.0 does'nt like you messing with the voltages. (soft or hard moddied.)

i have'nt got overdrive working have'nt tryed bios overclock is good enough for me. maybe i will try later...

anyway enjoy!!

[akatitan]

guys,
i got 8.8 working, for moddied 4850! check this thread...!

http://forums.techpowerup.com/showthread.php?t=69322

[steve30x]

Ive found a workaround for the Control Centre not working if the bios is modified. What Ive done is started the driver install and waited for it to copy the files to the HDD. Then I canceled the install when the box comes up asking to install or cancel. Then I copied the CCC folder from the 8.7 driver to the 8.8 driver and started the install again. I havent found a work around for the driver not installing yet though.

[Flak]

even with RBE1.14 I can't get any kind of modified bios for HD4850 to let the cat 8.8 install. Even modifying the bios to keep the speeds within the original overdrive limits, no voltage tweaks, no fan tweaks... just overclocking and the cat 8.8s will not install for any of my HD4850s. However, my HD4870 is fine just so long as I set method 1 to have my overclock within range.

[steve30x]

Method 1 only unlocks overdrive for me it doesnt set the clock speeds of my GPU to 800 / 1100. Earlier I tried using method 1 and set the clocks manually but the 8.8 drivers failed to see my card.

[H82LUZ73]

I would suggest using the 105 bios for this.I will test it out for you guys.Or better yet use the Diamond XOC one.I two had problems setting the bios up and then installing the cat 8.7 and 8.8(beta).

[steve30x]

When I set my card up with RBE and install the XtremeG catalyst 8.7 drivers it works perfect. But if I do it with the 8.8 driver it fails to recognise my GPU. Thanks for trying to help H82LUZ73.

[akatitan]

bump! for update!

[steve30x]

Ill see if Semp will do an XG 8.8. Maybe the XG 8.8 might fix some of the problems. Give me a few days to get an update to you.

[ViciousXUSMC]

I'd consider yourself lucky they did not install due to you changing the profile limits. Because from what I can pull just like the 8.7beta's if you have overclocked the card past the limits in the bios (or maybe any overclock at all not sure on this tho) then you will be greeted with a nice big black screen and maybe your fans locking to 100% and its hard as heck to fix as you have to go about trying to uninstall the drivers in pieces in safe mode and put the old ones back on.

the 8.7 full release worked so I thought it was just an issue with the beta drivers, but on my other forums we had several people report the black screen bug with the offical 8.8's.

Now with the new software out that lets you overclock & change fan speed I guess it is not as big of an issue as it once was. I may flash back to stock bios (or try stock bios with only fan fix) but for now since 8.8 did not bring anything to the table I will stay at 710/1050 with the 8.7's

[summersend]

Guy's whats method 1 im having problems also.Had a nice overclock going but had to reflash to original bios for 8.8.Any1 gonna do a stiky for this?Wonder how many people are gonna try and RMA after 8.8?For now im stuk back at 700 1150.have the fanfix working in my profile but as soon as i set clocks in amdgpuclocktool the fan goes back to like 10%Like starting all over again.

[akatitan]

I Cannot understand why none of you have tried the method i have shown in an earlier post. there is also a screen shot to showing it working... oh well your loss i guess..