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ASUS R7 260X DC II 2GB - adding cooling for rams to solve Artifacts ?

post #1 of 3
Thread Starter 
This GPU at default settings start show artefacts in 3Dmark Time SPY bench, and once in Doom 4, after I reducing VRams from 1625 *(default) to 1400mhz solving this issue but reduce in performance is significant mad.gif
I also check Vram temps under this test when they pass 61C artefact start to show max temps on Vrams 64C * this value is not precise because I used cheap multimeter
I tested on one from this modules, anyway cooling this modules will be tricky * plan add and solder aluminium part to main heat-sink to have enough flat surface to apply thermal pad



My question Vrams SKHynix can only hold up to 60C, or this is Vram degradation ?

After rams heat up * few 3Dmark Time Spy Pass they also show square artefact when watching Yutube.

and two Videos with artefacts

https://vid.me/8baZ

https://vid.me/MHLB


Edit: ok I find answer for my question info about this Vrams operating temps 0C-70C

http://www.component.supply/en/index.php?main_page=product_info&products_id=1198938
Edited by Rabit - 8/7/16 at 7:30am
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post #2 of 3
Thread Starter 
I dissembled GPU and was terrified after see gpu core :



In middle was no contact to cooler this is 1,5mm ~ 11% GPU Core surface without of contact to cooler any idea how to fill this gap ?




I tried soldering *(ZN 60% - PB 40%) but not stick to surface mad.gif

Now I thing to cut small thermal pad and stick in this gap, and use thermal paste on core rolleyes.gif

To cool Vram I i see only one solution sandwich biggrin.gif: memory module - Thermal Pad 1mm /6W - Aluminium Pad 1,5mm - Thermal paste -Cooler * Distances between memory and cooler is 2mm and in other place 0,5mm


About naked VRM I need do some work with metal to make this size cooler redface.gif

Any suggestion will be welcome thumb.gif
Edited by Rabit - 8/10/16 at 2:17pm
Cheap VR bulid :)
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Cheap VR bulid :)
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post #3 of 3
Thread Starter 
After some metal working I make some heat-sinks for VRM and Vram smile.gif



I also use coper wire to fill gap between heat pipes smile.gif
Wire at beginning was too thick and crooked, but when it stretched, it has become straight and thinner and easily fit between gaps smile.gif




But and the end I need use bios from R7 260X XFX because have lower voltages on VRAM and lower memory clock to 1350Mhz to solve issue, and because I used different bios i lose posobility to change Vcore and removed Mosfets heat-sinks because is no longer needed, and I also removed black heat stinks and leave only this ones the card.




Final setting for this card was 1210Mhz on core and 1350Mhz on Vram :rolleyes:and of course solved artefacts issue.


Bottom end:
I sell this GPU a week ago and buyer who get this telling my that is not working form him and on his friends PC, before sending I intensively tested this GPU on FM2+, LGA 775 and LGA1156 and working perfectly for sending I packed it in antistatic bug + bubble wraps put to solid carton box and fill space with additional carton. * he tells that he received package intact any guess what what happened ?

Bonus Stage * making heat sink from old HDD smile.gif







Edited by Rabit - 9/27/16 at 12:49am
Cheap VR bulid :)
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CPUMotherboardGraphicsRAM
X4 860k ASUS A88XM-A Club 3d Series 13 7790 Corsair CMZ8GX3M2A1600C8R 
Hard DriveHard DriveOptical DriveCooling
Samsung HD502HJ 500GB ADATA SP550 LG GH22LS50 Scythe Mugen 
OSMonitorPower
Windows 7 Home 64 LG Flatron E2242 Silentium Deus M1 550W 
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Cheap VR bulid :)
(16 items)
 
   
CPUMotherboardGraphicsRAM
i5 3470 @ 4Ghz P67A-GD65 (B3) Gtx 970 Windforce Hynix HMT351U6BFR8C-H9 
Hard DriveHard DriveHard DriveCooling
ADATA SP550 Samsung HD502HJ 500GB ocz vertex 2 Zalman CNPS 10X Quiet 
OSMonitorKeyboardPower
Windows 10 AOC 2236Swa Techno-X Silentium Deus M1 550W 
CaseMouseMouse PadOther
Aerocool GT Advance Case Maxtek mouse China cheap :P Sharkoon Shark Zone H40 
CPUMotherboardGraphicsRAM
X4 860k ASUS A88XM-A Club 3d Series 13 7790 Corsair CMZ8GX3M2A1600C8R 
Hard DriveHard DriveOptical DriveCooling
Samsung HD502HJ 500GB ADATA SP550 LG GH22LS50 Scythe Mugen 
OSMonitorPower
Windows 7 Home 64 LG Flatron E2242 Silentium Deus M1 550W 
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