Soldato
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** The Official ATI RV770/RV700 Series Review/Overclocking Thread **
- Thread starter gurusan
- Start date
Looks like they have a fan on it.
Sorry, I didn't follow the link! Even passively cooled, the accelero should improve the temps. Mine with the stock cooler was 74c idle...
Not that that's a problem in itself, the cards are obviously ok at this temp (a leaflet in my box says not to go over 110c), but I like things as cool as possible!
I disconnected the stock gpu fan and strapped on a 92mm.....now I get 44c idle and 58c load...even when clocked to 700mhz
It's obvious the stock cooler is plenty sufficient, it's just that the fanspeed is permanently stuck at only 14%!!! We need fan control!
It's obvious the stock cooler is plenty sufficient, it's just that the fanspeed is permanently stuck at only 14%!!! We need fan control!
since RBE v1.11 is released we have some fan control and can start clocking, so time to revive this thread!
So far I have achieved 820mhz/1100 on the stock cooler. I used a mixture of bios and pencil mod to get 1.17v idle and 1.33 load
Once you use RBE to change the fan profile it is actually quite a sufficient cooler.
And this is how I changed the fan profile in RBE:
So far I have achieved 820mhz/1100 on the stock cooler. I used a mixture of bios and pencil mod to get 1.17v idle and 1.33 load
Once you use RBE to change the fan profile it is actually quite a sufficient cooler.
And this is how I changed the fan profile in RBE:
Hey gurusan, did you use the msi BIOS or just edit your own one? When I edit the BIOS I have, fan control works like a charm but changing 2d clocks doesnt quite work properly. For example, I changed the 2d clocks from 500/750 to 160/500 to match the msi BIOS but after the flash in 2d mode the clocks remain at 500/900.
After flashing the msi BIOS, I still dont get 160/500 but 300/500.
Also, what voltage did you put in the 3d section? I would use a pencilmod instead by my multimeter's batteries run out.
edit: nvm you have to disable ati overdrive for the clocks to work properly
After flashing the msi BIOS, I still dont get 160/500 but 300/500.
Also, what voltage did you put in the 3d section? I would use a pencilmod instead by my multimeter's batteries run out.
edit: nvm you have to disable ati overdrive for the clocks to work properly
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It was ati overdrive taking control. Im guessing theres a minimum clock speed which overdrive has.
Also, do you know if voltage control works using RBE? If so, what have you set to get 1.33v?
I would advise disabling overdrive completely, it will screw with your clocks and won't allow you to clock over 700mhz.
And in RBE so far it has only worked to boost it up just a tad, to what are almost 4870 voltages.
Setting the 3d clocks to 1.4v got me from 1.16 (stock) to 1.21V...so I'm guessing that's the max voltage you can reach through BIOS flashing.
To reach 1.33 I flashed the bios to 1.21V and also pencil modded a bit.
Also just so you know, I have tested 1.21v up to 720mhz and it is stable through a few minutes of rthdribl and an hour or so of CoD4.....I'm hoping 1.21V will be enough for 750mhz because that would allow 4850 users to reach 4870 speeds with only a bios flash
And in RBE so far it has only worked to boost it up just a tad, to what are almost 4870 voltages.
Setting the 3d clocks to 1.4v got me from 1.16 (stock) to 1.21V...so I'm guessing that's the max voltage you can reach through BIOS flashing.
To reach 1.33 I flashed the bios to 1.21V and also pencil modded a bit.
Also just so you know, I have tested 1.21v up to 720mhz and it is stable through a few minutes of rthdribl and an hour or so of CoD4.....I'm hoping 1.21V will be enough for 750mhz because that would allow 4850 users to reach 4870 speeds with only a bios flash
I would advise disabling overdrive completely, it will screw with your clocks and won't allow you to clock over 700mhz.
And in RBE so far it has only worked to boost it up just a tad, to what are almost 4870 voltages.
Setting the 3d clocks to 1.4v got me from 1.16 (stock) to 1.21V...so I'm guessing that's the max voltage you can reach through BIOS flashing.
To reach 1.33 I flashed the bios to 1.21V and also pencil modded a bit.
Also just so you know, I have tested 1.21v up to 720mhz and it is stable through a few minutes of rthdribl and an hour or so of CoD4.....I'm hoping 1.21V will be enough for 750mhz because that would allow 4850 users to reach 4870 speeds with only a bios flash
Okay thanks. 1.21v via BIOS modding isnt great. It makes sense since they dont want people doing exactkly that, flashing straight to 750mhz. It might be possible that the so called HD4850+ cards have higher voltages, so theres still hope.
For anyone who is interested, 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!::
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.
gurusan said:
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.
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Sorry so are you saying that the original stock fan is stil attached, but you just strapped a fan to the cooler and got those temps?.. was this on a 4850 if so thats pretty fantastic?/..
I did that before briefly on the 4850...but now there's no need for it as there's fan control via the bios
Hi gurusan
posted in other thread, great work here but do you know which of the 9 clock/power settings in efect hi/low 3d and 2d or is ther a guide somewhere ?
Thanks
I'll pull down You Mod bios and have a play
It's a bit confusing, I know...I think I have some idea of which ones are which though.
I think Clock state:
0: boot clocks, I just left this one as is.
1: power saving mode, I changed vGPU to .99 to save even more power
2: low power 3d, or perhaps UVD? or both? left as is
3: High power 3d I believe.....changed to desired clocks and 1.4v to get
1.20v load
7:high power 3d, again? I don't know, I changed this to the same as clock state 3 though, I think one of these might be uvd.
Anyway those are the only ones you need to edit as the ones greyed out will automatically fill out according to what you put in the other boxes.
yes.
so its just very sneaky marketing by ati, and it's parteners?.. i think (because of lack of experience) i wont upgrade the bios, but i will definately strap a fan on there.. aswell as to squeeze a bit of overclock out of it, and mainly to extend lifespan
