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post #101 of 103
Thread Starter 
I have a XFX 4870 1GB XXX Edition.







Alright I've figured a few things out.



The reason the video card flickered wasn't because of the 950 DRAM speed.....it was because of how it was setup.
clock ids
00 = boot (doesn't matter I will leave it alone)
01 = low (single monitor?)
02 = medium (single monitor?)
03 = high (single monitor?)
04 = UVD (video decode)
05 = UVD (video decode)
06 = UVD (video decode)
07 = low (dual monitor?)
08 = medium (dual monitor?)
09 = high (dual monitor?)



Defaults clocks on original XXX BIOS:
01 = 600 core / 900 dram
02 = 600 core / 900 dram
03 = 775 core / 950 dram

04 = 775 core / 950 dram
05 = 775 core / 950 dram
06 = 775 core / 950 dram

07 = 600 core / 900 dram
08 = 600 core / 900 dram
09 = 775 core / 950 dram



Rule #1 all dram speeds in a set
(01-03, 04-06, 07-09)
MUST match to avoid flicker.

Rule #2 if the core / clock speeds of clock id 04, 05, and 06 match 03 and 09 then performance will increase.

01 = 600 core / 950 dram
02 = 600 core / 950 dram
03 = 775 core / 950 dram

04 = 775 core / 950 dram
05 = 775 core / 950 dram
06 = 775 core / 950 dram

07 = 600 core / 950 dram
08 = 600 core / 950 dram
09 = 775 core / 950 dram



So....set clock id 01 through 09 DRAM speed to the same number.....it just makes life simpler.
And....set clock id 03, 04, 05, 06, 09 CORE speed to the same number....it improves performance. They got this right in the original BIOS.

Currently I am running 830 CORE and 1025 DRAM speeds and I adjusted the fan profile for 45C to 101C.

I tested 820 core speed with 900, 925 (medium improvement), 950 (medium improvement), 975 (medium improvement), 1000 (small improvement), 1025 (large improvement), 1050 (almost no improvement).
So I ended up with 1025 DRAM speed.

The original fan profile was 58C to 101C. In a Furmark test the maximum temperature dropped from 72C to 68C.
The fan speed gets to about 42% at 70C. This is enough to make the fan audible.
Only at 50% does the fan start to become annoying.

In a 3dmarkvantage test the temperature does not go above 65C (even better).
I already disassembled the card and applied new Prolimatech PK1 heat dope.

I'm not sure how much higher the core speed will go on this model.
I don't want to push it too hard.
I reached my goal already of just over 12,000P in 3dmarkvantage.
Edited by Cancer - 3/10/13 at 9:01pm
    
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post #102 of 103
hahah.. nice job.. now go over to the amd gpu mod section and throw a closed loop cooler on that card to give you some headroom and lower noise. ;>

http://www.overclock.net/t/1203636/official-amd-ati-gpu-mod-club-aka-the-red-mod

there is even a cpu/gpu kit for 69.99 on ebay from asetek that has a seperate gpu and cpu pump but would prob need zip ties or a different mounting bracket..it has a 49mm rad and you can move it to a different system if you ever upgrade. ;>

asetek makes the kits for many companies.
here is that link if you are interested.. but like i said the bracket for the gpu prob wont fit but will come off..these dont come with fans either but they work very nice with pwm fans or fans that are controlled by the motherboard. the gpu pump has a 4 pin male female connector that looks like it would work well on that video card. but without seeing the board with the cover off i i obviously dont know if there is room for the pump..

http://www.ebay.com/itm/Asetek-760GC-Combo-Liquid-Cooler-NVIDIA-GTX-470-480-570-580-/280965116990?pt=US_CPU_Fans_Heatsinks&hash=item416ad3743e

no matter what great job.
sunset1
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wd black 1 terra wd black 1 terra corsair 256gig ssd external usb3 wd 3 terra 
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blu-ray burner Thermaltake water 2.0 Extreme (cpu) Thermaltake water 2.0 pro 2gpu 1clc with corsai... windows7 home pro 
MonitorKeyboardPowerCase
samsung T260 25" ms gamer  Seasonic 750x gold Coolermaster Haf 22 Modified 
MouseMouse PadAudioAudio
Logitech MX-518 Duh this is nonsence. belkin onboard but will install sb titanium logitech 5.1 thx 
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wd black 1 terra wd black 1 terra corsair 256gig ssd external usb3 wd 3 terra 
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blu-ray burner Thermaltake water 2.0 Extreme (cpu) Thermaltake water 2.0 pro 2gpu 1clc with corsai... windows7 home pro 
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samsung T260 25" ms gamer  Seasonic 750x gold Coolermaster Haf 22 Modified 
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post #103 of 103
Thread Starter 
Quote:
Originally Posted by sunset1 View Post

hahah.. nice job.. now go over to the amd gpu mod section and throw a closed loop cooler on that card to give you some headroom and lower noise. ;>

http://www.overclock.net/t/1203636/official-amd-ati-gpu-mod-club-aka-the-red-mod

there is even a cpu/gpu kit for 69.99 on ebay from asetek that has a seperate gpu and cpu pump but would prob need zip ties or a different mounting bracket..it has a 49mm rad and you can move it to a different system if you ever upgrade. ;>

asetek makes the kits for many companies.
here is that link if you are interested.. but like i said the bracket for the gpu prob wont fit but will come off..these dont come with fans either but they work very nice with pwm fans or fans that are controlled by the motherboard. the gpu pump has a 4 pin male female connector that looks like it would work well on that video card. but without seeing the board with the cover off i i obviously dont know if there is room for the pump..

http://www.ebay.com/itm/Asetek-760GC-Combo-Liquid-Cooler-NVIDIA-GTX-470-480-570-580-/280965116990?pt=US_CPU_Fans_Heatsinks&hash=item416ad3743e

no matter what great job.
sunset1

Hmmmmmmmmmmmmmmmmm.......well that's not a bad idea.
But I wouldn't use an Asetek....I'd probably go custom as to weed out any undesirable components.
I heart.gif cherry-picking components.

I have kicked around the idea of giving a first try at watercooled OC with this machine because it is NOT my main rig but it is pretty fast.
Most of the parts are leftovers so the total cost of the system makes for a lessened risk should something go wrong.

But before I do that I want to finish the LED fan project on the main rig.
    
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