Anyone had similar issues on my prob?
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When i edit bios , fan speed is ok but GPU clock max to 700 and vGPU doesnt change.
@Battlestar: I am also missing the area indicated by red box, however, I just used the graph and bumped the minimum up, and steepened the slope some. However, Sensors (page in GPU-Z) doesn't accurately report GPU speed when operating in 3d mode, just sits at 500 all the time... Not sure if this is just cause its early, or what.
Also, my down clock to Power State 1 (power play 2d setting) doesn't change clock speed at all. So I'll try another setting... Perhaps I just have to use the right numbers. Can anyone confirm if changing voltage in Bios with RBE actually works? Or are we bound to mod for voltage tweaks?
@Battlestar; just PM me and I'll email you one of what I have that works fine for my fan speeds. I don't have power play under clock working yet.
I was wondering, does the voltage control actually work? If so then hard-vmodding would be absolete, right? Nice! :up::clap:
I have tried putting the voltage adjustments up to 1.4v but this results in only 1.21v...which is still .05v over stock so it's a small increase and allows you to go to 725-750 core.
Okay, good to know :) before hard modding, I want to find out what the max is of my core.
Take a look at this shot. it's my bios for 710core and Powerplay at 160/500 in 2D.
http://img204.imageshack.us/img204/6666/7101125gq0.jpg
Just replace al of the 710's with 800's (and giveup your corresponding voltage) and it should work. And disable Overdrive in Windows, or it wil override your setting of 800
For me the vgpu only allowed me to go up to 1.21v through the bios
I put 1.400v actually and it only got me to 1.21v
What drivers are you guys using? The Hotfix I presume?
@biftek: Yep. Although, I never really encountered any stability issues with 8.6.
i got my visiontek 4850 doing 725/1050 no problems so far. what benches are you guys using for stability on these cards since ati tool doesn't work? I remember using the fur renderer when i had my 8800gt and it killed 2 of my cards and i know of several other people that had their cards die on them, so i don't really want to use that for stability testing.
For anyone who is interesed, I have modded the 4850 MSI bios....not only have I raised clocks and voltage under load, but I have improved on the powerplay feature as well as the fanspeeds. IMO this is how it should have been shipped from the factory...it is a bit loud while gaming and such but this way the cooler is actually effective!:
Quote:
Originally Posted by gurusan
The fan will only go down to around 25% in idle and 2d clocks, but it's pretty much inaudible and during 3d clocks should keep it under 70c full load, more like mid-low 60s.
All the reference 4850s should be able to do this, but if you are getting crashes then I can make you up a slightly less aggressive profile, or you can edit it yourself with the RBE tool. I recommend stress testing with rthdribl and some Crysis benches.
http://img233.imageshack.us/img233/9156/23160743ls1.jpg
Hi Gurusan,
It seems your pretty active on this thread :) Can I ask a favor? Could you make me one that comes with:
GPU Clock: 675Mhz
Memory: 1000Mhz
FanSpeed 60% on Load and 25% on Idle?
Clock Info1:160/500?
Clock Info2:500/750?
You may DL the stock BIOS of my card here: http://www.techpowerup.com/vgabios/i...ace=&memSize=0
Thanks-Battlestar
Great work people! How about putting in some benches? The memory can hardly be overclocked and I wonder if with such aggressive core clocks (such as 925MHz :O) the card is bandwidth starved?
For example, a comparison benchmark between 800-900MHz would do the trick
Thanks gurusan!! this will come very handy!! I did my own profile with RBE too, but I couldn't fiddle with vgpu settings. I might give this one a try after lowering the core and mem freq. to a more acceptable 680/1075 (these ones I know my card can handle...)
:)
One could explain me what is the difference between State 1 and State 3 in RBE ?
And now much can we increase Vgup ? Is there a limit ?
Try this, the fan profile may not be exactly as you want it, you can play with the slope using RBE:
http://rapidshare.com/files/12540238...phire.rom.html
The stock bios is 1.15-1.16 load, my bios is 1.20-1.21v load so you should be able to do much more than 680mhz on 1.2v :) No harm in being conservative though
I have a small problem with RBE: every time I mod a bios and save it, i lose all the voltage settings, they re replaced with ---
For example if I open an official bios file or your bios Gurusan in RBE, i see the voltages, but when I save the file and reopen it all the voltages are gone (---).
Noob question here, but how do you flash the bios onto the card without using winflash. For some reason it doesn't start for me:shrug:.
-you download this:
http://www.techpowerup.com/downloads/1061/mirrors.php
-put it on a bootable usb stick (to make a bootable USB stick google "hp drive key boot utility"
-then boot from the usb drive
-type: atiflash -p 0 (newbios)
if the SSIDs don't match then type atiflash -p -f 0 (newbios)
Yeah, you're probably right, but in a previous test I tried 680/1100 and ATITool started giving me errors and artifacting, so I guess a higher mem overclock is somehow limited on my card. Furthermore I've been following some user reviews throughout the web and in most of the tests the jump from 1075 to 1100Mhz isn't giving higher performance in games or higher framerates, actually in some cases the performance lowered a bit, perhaphs the mem chips are encountering some gpu bottlenecking, I don't know...
Anyway, might try a 700ish on the core 'though :p:
winflash has never worked for me. Always freezes on launch and cpu usage goes to 100%.
Booting from a usb didn't work. It told me it can't boot. BUT, Winflash 2.0.0.7 worked for me - thanks!
Guru, I used your bios, and edditted it so that my ram is lower (It doesn't work well at 1100mhz) and when i flashed, my old overclocks were still the same as I had set from CCC....
Any thoughts.
That said, I forgot to back up my original bios :shakes:...sigh...
To follow that, there is a BUG in RBE 1.10 and 1.11 which misinterprets Voltage values if you are in countries where decimal separator is "," (comma).
So if you live in Europe (except UK), change your Regional settings to English(UK) in Control Panel, before modding bioses with RBE.
You need to disable overdrive otherwise CCC takes over.
could not get 950 mhz core stable.. no matter the volts... added some 2.5v uf800 caps to the back as well.. still should had a few more..
also..... in the voltage settings i had to change ALL(including the "---") of the voltages manually(in RBE) so i could even break 920 mhz.... the voltages would go from 1.58v to 1.43... once i changed all the voltages in RBE it was artifact free and droop free... i gave her all the way up to 1.7v on the core and no go still at 950. but 1.54v 920 is stable..... load goes to 1.59v from the 1.54v idle...
just an update... :up::yepp::cool::D:p:
K. I saw the clocks until ati took over.
I try to disable it from the CCC, and it re-enables when I click apply.... is there a registry key I need to change?
Thanks Gurusan, I'll keep this BIOS safely it woks like a charm for me :)
@miwo
temps were hitting 55c load, 38c idle.... the s1 does a great job... :up::yepp::D
w00t this has convinced me to buy a 4850! can you guys put up some 3dmark 06 scores?
thx, Ali
Glad to hear! I was scared I made the clocks a bit too aggressive but I'm glad someone besides me is getting it to work :D
hmm I don't know why it's doing that. If it were unstable then usually the driver will crash and then recover...or the computer will freeze.
Is something else taking priority of your CPU? Does it do it with the normal bios?
Hey guru I'm having an issue with the 2D profile working with your BIOS. It seems to run with the 3D settings all the time. I did, tweak it a little, but just for the Fan profile.
Also (possibly) unrelated, this is what happens to the Overdrive tab in CCC for me, it occasionally flashes to show what should be there, only with blank values. (see attached file) I don't think that should be normal :p:
This is with the Hotfix Driver. :shrug: I've tried reinstalling it, seems to only be a CCC issue, as the in game performance is solid so I dont think it's in the drivers. I'll try stressing it with the crysis bench and see if maybe it just isn't stable?
hmm that's odd, I don't know what to say as the 2d profiles are working fine for me? Perhaps it's a bad driver install? How about downloading a stock bios from the techpowerup database and editing it yourself to see if you have the problem again.
On another note, I just did a 3dmark06 run and am pleasantly surprised at the result. This was at 720/1200 with an E6750 @ 3.64ghz, 4gb OCZ @ 1090mhz 5,5,4,14
Not bad for a dual core and single card.
http://img406.imageshack.us/img406/6613/87981222an9.jpg
it is weird actually, cause i had a 725/1050 oc which ran fine, then i ran rthdribl and it would do that 2fps thing every once in a while. Then i flashed the bios to 750/1100 and when i restarted, the mouse was really lagging, i couldn't do anything in windows.
flashed back to my 725/1050 oc and it was doing the same, flashed back to stock bios and it still did the same. i turned everything off, checked connections to see if my raid sata cable was getting loose, turned off the psu completely, pressed the power button a few times, then restarted and it worked like normal with stock bios.
i gave the 750/1100 oc another try and now the computer is working flawless again and rthdribl is not doing the 2fps thing anymore.
not sure what the problem was exactly.
but thanks for the help. i have 44 load w/ the accelero.
Hi!
I figured what may be part of the problem. As you know, some clock info settings of RBE are locked by default. As this was helpful for 3xx0 cards, it might be disturbing for 4xx0 cards, which is why from RBE v1.12 on, it will be turned off by default.
In RBE v1.11, it's on by default and so, it kicks in: RBE loads the BIOS and displays the clocks, but due to the lock, all locked clocks are the same. Again, for 3xx0 cards, these clocks really were the same, but not for 4xx0 cards.
Even when you unlock after loading the BIOS, the information is gone. So, I made a screenshot with lock turned off by default and RBE shows this:
http://freenet-homepage.de/BAGZZlash/Unlocked.png
So maybe you should consider changing clock info 3 to 9 for overclocking (at least 3 and 7 to 9, for I'm pretty sure 4 to 6 are used in UVD mode only), clock info 1 for 2D mode and clock info 2 for low 3D mode (i.e. Vista aero).
A 4870 BIOS I loaded had "high" clocks at 3 and 9 only (besides 4 to 6 for UVD), so maybe this may be enough for overclocking. Clock info 8 is medium performance setting (i.e. for Vista aero) for state 3 then. See:
http://freenet-homepage.de/BAGZZlash/Unlocked2.png
Furthermore, clock info 7 may be the 2D setting if the card is at powerplay state 3.
Long story short - You maybe want to use this as a basis:
http://freenet-homepage.de/BAGZZlash/Unlocked3.png
I entered a GPU clock of 710 and a memory clock of 1030 MHz to denote "overclock here". Enter the values of your choice.
I'd be glad if anyone gave me an update about whether this was useful.
I'm currently testing with Gurusan's bios and i figured out that you don't need to set vgpu at 1.4v in bios to get 1.21v (read out with DM)
This is what I got:
1.40v set in bios gives me 1.9v ( 1865 milli v to be exact) on my DM
1.30v set in bios gives me 1.9v ( 1865 milli v to be exact) on my DM
1.25v set in bios gives me 1.9v ( 1865 milli v to be exact) on my DM
Right now I'm @ 750MHz with 1.9v, not bad I think, still haven't done a hardmod :)
Will do a bench in minute
Thanks bagzzlash...that makes things a bit more clear.
Am not impressed with your score unless itīs a vista score. I am not a fan boy and i will soon be picking up a HD 4870. With my old 8800GTS 320mb SC, i was able to get 15k in 3Dmark 06 check sig. Canīt you bump up the shaders clock a bit and try tighten up your mem clocks(ram) maybe 4-4-4-10.That may increase you score:yepp: Well nice score for a start, keep pushing:up:
I have a dmm hooked up to my card for testing. With a pencil mod done. I get just around 1.290v loaded regardless of what voltage I set in the bios. Is there any trick to getting higher voltages threw the bios? :confused:
BAGZZlash:
After I change clock info 3 and 9 to my OC value (715 MHz) and saves the bios only nr 3 stays at 715. Nr 9 changes back to 500. Whats even more weird is that clock info 6 changes to 715 MHz instead. :)
But it seems to work anyway. The GPU jumps up to 715 in rthdribl, so I guess it works in games too.
Should I edit the bios again and only keep 3 at 715?? Clock info 6 ain't for 3d right?
This is a Gigabyte bios btw, same one as Sapphire uses.
2D voltage is 1.046 and 3D 1.084.
ok i'm like pissed, man no friggen software to clock as high as we dare?
i topped out 700/1200 and no volt mod yet.
to have to bois flash to o/c is not what i'm used to
http://www.thermalright.com/new_a_pa...b/trad-4-1.jpg
http://www.thermalright.com/new_a_pa...ler_trad2.html
mmmm... mmmm.... might slap one of these on my 4850 :P
Would anyone care to bench something at 750 GPU and stock memory for comparing 4850/4870 GPU vs memory?: http://www.xtremesystems.org/forums/...d.php?t=192690 Been using games and settings used by the 4870 reviews in order to compare results.
Then write it. If you think what W1zzard and BAGZZlash ( and others)do is easy, write some yourself. Nobody pays these fine people, they do it to help the community and ask for nothing but the occasional thank you or other compliment. Many people have spent a great deal of time, effort and even money to bring this information to you on a silver platter. you should be thankfull there is even a way to get above 700, it took a lot of effort to get this far.
Thanks for that BIOS Gurusan. It works a treat for me :up: Its good to actually hear the fan doing some work under full load!
http://img73.imageshack.us/img73/4513/16465nz2.png
I think the fan is doing a bit to much work if ya know what i mean :rofl:
I'm gonna try and pick up an S1 over the weekend. :)
And did the 2d profile work for you? or am i alone in that issue?
I've reinstalled so many drivers today and yesterday I'm thinking of just doing a fresh windows install :/ I might have really jerked with some crap in the registry. :( it'd be nice to have an official driver actually.
Isn't that normal for using Aero Glass in Vista though? I know on my card, monitoring my system with Everest on my G15 LCD, that the GPU speed on my 8800GTX is always at "3D" speed, it never changes. That bugged me until I realized that it must be Aero Glass since the desktop is kinda always in 3D now, if I boot into my XP 32-bit install, I found that being at the desktop there, the GPU was running at "2D" speeds.
In an ideal world, I'd like to be able to do something like run the GPU at something lower, maybe 500Mhz for starters by default, and then when I go to play a game, some app has a profile for that game and kicks in to OC the GPU/RAM.
That said, my 4850s that weren't supposed to show up until Tuesday showed up today :) So I need to crank out some benchmarks on the old card first just so I have some comparisons between a 4850 and 4850 CF.
I'm not using aero glass though ;) Windows classic look FTW! :up: I like my Vista to look like 98
The only reason it bothers me is because it makes the fan run loud (~70%) all the time. I wouldn't mind it if it were just in game but I like my silence the rest of the time.
I was eager to get down and dirty with RBE after having my card run stable (e.g., 3DMark Vantage/06, FurMark, Lightsmark) at 700/1000 (set via CCC). However, after one adventurous clock to 700/1100, where things started to crash, I can't get back to 700/1000 without crashing! :eek: I'm not sure what the hell is up.
Threw up a post about it here if anyone has any suggestions. :yepp:
http://www.xtremesystems.org/forums/...d.php?t=192821
OMG I finally figured it out.
Apparently having dual monitors forces the cards into 3D mode :p:
That better change with a new driver.
Anyways, I'm finally enjoying a quite computer sans one monitor, and once again low temps.
That better be fixed with the next driver, there is no reason two monitors should count as "3D".
sry to offend you
but i never said it was easy.
and i know that you had help from some of the best guys in the community getting where you are now.
i geuss i just took o/c programes for granted using nvidia products for the past few yrs.
but like i said bios flashing not for me since it voids my warrenty with the brand i use plus the fact i dont like to have high clocks all the time
again sry to get your wares in a knot
just a rant by me
Out of curiousty... how well do all of your overclocked cards hold up when running FurMark (http://www.ozone3d.net/benchmarks/fur/). I'm able to run 700/1000 at 1920x1200, with the fan cranked up a bit, in rthdribl (x16 multisample), 3DMark and games. However, running FurMark will bring my card to a halt.
just got my 4850 under water.
27c idle and 31c load :eek:
will be clocking later today
yes..it works with all reference 4850s
but is possible change the voltage?
you can change the voltage up to 1.20, that's the limit on the bios vmodding
and here's something nice:
http://img157.imageshack.us/img157/7479/28052235sz2.jpg
for comparison :) should beat the GTX 280 as the guy who has 1st has a 45nm quad @ 3.7ghz, I have a 65nm dualcore @ 3.64ghz
http://img511.imageshack.us/img511/6281/83392671aj3.jpg
yup i'm very pleased with this gpu.
http://img72.imageshack.us/img72/7038/95393812jm5.jpg
I'm using a dangerden maze4. my first time with this block and I've pleased. Low restriction and excellent performance.
Thanks for the bios GURUSAN, works good on both of my cards, these cards should be killer in crossfire now!!!
Mixture of pencil and bios modding for:
1.18V idle
1.48V load
I set .94v in the bios for the idle state so that it would stay at a low vGPU when not in use :)
I think 1.5ish under water would be fine if you keep it at a low idle voltage like I did so that it's not always getting 1.5v
haha, I bet that guy with the GTX280 below you is pissed :rofl:
These cards are incredible. I'm going to pick up some after market cooling today :) Probably an S1 for now and eventually one of those T-Rad2's when they come out. Hopefully then I can hit some higher 700 core numbers, I'm barely making it at 730 temp wise. :(
Cards already v-modded for it, i have 1.28V load and 1.04 idle :)
Guru, did you change the voltage on your memory at all? I can't get past 1050 stable yet.
yes i bumped it to 2.12v with the pencil mod.
how about for maximum core without using pencil mods, only using RBE?
Could messing around with BIOS flashing on a CF setup have any affect on whether the second card is utilized?
The reason I ask is that I had one 4850, flashed around with it (mostly just fan changes) after reading up on RBE, etc., and then threw in another 4850. Now the second 4850 will not fire up during gaming/benchmarking but it is detected by CCC and Vista. I even flashed both cards back to the stock BIOS.
http://www.xtremesystems.org/forums/...d.php?t=192864
Thanks.
Has the pencil mod for vmem been posted somewhere gurusan
Here you go: http://www.techpowerup.com/articles/...g/voltmods/151
Is it just me or are some of the mods unclear in this guide?
the mods seem pretty clear. what are you unsure of
Well, I was just looking over it. I already did all my wiring and just need to buy the resistors, but for some of the pencil mods I can't see where you're supposed to shade in.... maybe it's just me...:shrug:
OH GOD! I get it. hahaa. I feel so noob. I couldn't figure out that you have to shade around the resistor.
Amazing guide, though. Very clear.
look at where the tip of the pencil points? read the text below the image