Overclock.net › Forums › Graphics Cards › AMD/ATI › ATI Cooling › Stock RAM sinks on Sapphire 6850 good enough?
New Posts  All Forums:Forum Nav:

Stock RAM sinks on Sapphire 6850 good enough? - Page 2

post #11 of 24
I just put some Zalman ramsinks on my Sapphire 6850s ram, however 2 of the chips, the ones directly under where the heatpipes comeout of the heatsink, wont fit. BUT these 2 chips have direct airflow(unobstructed even by the heatsink) from the fan. Do you think this is a bad thing? Or will they be alright. I'm trying to overclock my ram and these are the shortest ramsinks I could find.

Sorry to hi-jack your thread lol.
post #12 of 24
could you shorten the heatsinks and fit them?
post #13 of 24
Quote:
Originally Posted by thrasherht;12184146 
could you shorten the heatsinks and fit them?

I would have to hack off pretty much every fin, they are only 6MM tall, It seems to be a design flaw in the card. I even tried offsetting the sinks a little with no luck. These are the heatsinks I got:

http://www.frozencpu.com/products/3285/ram-21/Zalman_ZM-RHS1_VGA_RAM_Heat_Sinks.html?tl=g40c18s236&id=ZR3U6og2
post #14 of 24
Thread Starter 
Quote:
Originally Posted by Bryst;12184134 
Sorry to hi-jack your thread lol.

I don't mind, it's a good question.
My gaming desk
(14 items)
 
Miner
(15 items)
 
 
CPUMotherboardGraphicsRAM
AMD FX-8350 ASUS Sabertooth 990FX Sapphire 290x Patriot Viper Extreme Division 4 
Hard DriveHard DriveCoolingCooling
OCZ Vertex 460 WD 1TB Blue Koolance 380A EK-FC R9-290X 
OSMonitorKeyboardPower
Windows 8.1 64-bit Monoprice 27" IPS-Glass Pro Panel DUCKY! Antec HCP 850W 
CaseMouse
Hand built wooden desk Logitech G700S 
CPUMotherboardGraphicsGraphics
AMD A10 7850K ASUS A88X-Pro Sapphire 280x Sapphire 280x 
RAMHard DriveHard DriveCooling
Patriot Viper Xtreme Div4 1866mhz 60GB Vertex2 WD Caviar 500AAKS XSPC Rasa 
OSPowerCase
Windows 7 64 bit EVGA 1000W G2 Thermaltake Level 10 GTS 
  hide details  
Reply
My gaming desk
(14 items)
 
Miner
(15 items)
 
 
CPUMotherboardGraphicsRAM
AMD FX-8350 ASUS Sabertooth 990FX Sapphire 290x Patriot Viper Extreme Division 4 
Hard DriveHard DriveCoolingCooling
OCZ Vertex 460 WD 1TB Blue Koolance 380A EK-FC R9-290X 
OSMonitorKeyboardPower
Windows 8.1 64-bit Monoprice 27" IPS-Glass Pro Panel DUCKY! Antec HCP 850W 
CaseMouse
Hand built wooden desk Logitech G700S 
CPUMotherboardGraphicsGraphics
AMD A10 7850K ASUS A88X-Pro Sapphire 280x Sapphire 280x 
RAMHard DriveHard DriveCooling
Patriot Viper Xtreme Div4 1866mhz 60GB Vertex2 WD Caviar 500AAKS XSPC Rasa 
OSPowerCase
Windows 7 64 bit EVGA 1000W G2 Thermaltake Level 10 GTS 
  hide details  
Reply
post #15 of 24
Hacked up an old northbridge heatsink and put it on 3 of the chips. Hopefully this will help keep the 2 chips cool that couldn't fit the Zalman heatsinks.
0130111726.th.jpg
0130111726a.th.jpg
0130111727.th.jpg
0130111727a.th.jpg
post #16 of 24
Thread Starter 
Ha, nice. See a big difference?
My gaming desk
(14 items)
 
Miner
(15 items)
 
 
CPUMotherboardGraphicsRAM
AMD FX-8350 ASUS Sabertooth 990FX Sapphire 290x Patriot Viper Extreme Division 4 
Hard DriveHard DriveCoolingCooling
OCZ Vertex 460 WD 1TB Blue Koolance 380A EK-FC R9-290X 
OSMonitorKeyboardPower
Windows 8.1 64-bit Monoprice 27" IPS-Glass Pro Panel DUCKY! Antec HCP 850W 
CaseMouse
Hand built wooden desk Logitech G700S 
CPUMotherboardGraphicsGraphics
AMD A10 7850K ASUS A88X-Pro Sapphire 280x Sapphire 280x 
RAMHard DriveHard DriveCooling
Patriot Viper Xtreme Div4 1866mhz 60GB Vertex2 WD Caviar 500AAKS XSPC Rasa 
OSPowerCase
Windows 7 64 bit EVGA 1000W G2 Thermaltake Level 10 GTS 
  hide details  
Reply
My gaming desk
(14 items)
 
Miner
(15 items)
 
 
CPUMotherboardGraphicsRAM
AMD FX-8350 ASUS Sabertooth 990FX Sapphire 290x Patriot Viper Extreme Division 4 
Hard DriveHard DriveCoolingCooling
OCZ Vertex 460 WD 1TB Blue Koolance 380A EK-FC R9-290X 
OSMonitorKeyboardPower
Windows 8.1 64-bit Monoprice 27" IPS-Glass Pro Panel DUCKY! Antec HCP 850W 
CaseMouse
Hand built wooden desk Logitech G700S 
CPUMotherboardGraphicsGraphics
AMD A10 7850K ASUS A88X-Pro Sapphire 280x Sapphire 280x 
RAMHard DriveHard DriveCooling
Patriot Viper Xtreme Div4 1866mhz 60GB Vertex2 WD Caviar 500AAKS XSPC Rasa 
OSPowerCase
Windows 7 64 bit EVGA 1000W G2 Thermaltake Level 10 GTS 
  hide details  
Reply
post #17 of 24
Quote:
Originally Posted by Krusher33;12203202 
Ha, nice. See a big difference?

Overall I noticed a 1-2C drop in temp3 of gpu-z not sure if thats the memory, but is the only temp thats changed. Hoping it will get me to 4600mhz mclk speed. Funny thing, my temps hang at 63c under full load whether I clock my core at 850mhz or 900mhz. Right now im running 900/1125 on stock voltage.

I might try to mod some VRM heatsinks to get my Zalman VF1000 to fit and see what I get temps wise.
post #18 of 24
Thread Starter 
Using stock cooler and nothing on the RAM chips: I'm seeing 65C on the GPU2&3 at 920/1200 with stock voltage. At 950/1180 with voltage at 1.18 I was seeing 70C on the same sensors. That's with no sinks on the RAM.

I've still yet to try the Acellero but I'm not sure if I'm going to or not at this point. It would mean taking out a side fan in order for it to fit.

With the above OC, the fans were still only at 45% and pretty quiet (to me) with the GPU temp never reaching above 65C.
My gaming desk
(14 items)
 
Miner
(15 items)
 
 
CPUMotherboardGraphicsRAM
AMD FX-8350 ASUS Sabertooth 990FX Sapphire 290x Patriot Viper Extreme Division 4 
Hard DriveHard DriveCoolingCooling
OCZ Vertex 460 WD 1TB Blue Koolance 380A EK-FC R9-290X 
OSMonitorKeyboardPower
Windows 8.1 64-bit Monoprice 27" IPS-Glass Pro Panel DUCKY! Antec HCP 850W 
CaseMouse
Hand built wooden desk Logitech G700S 
CPUMotherboardGraphicsGraphics
AMD A10 7850K ASUS A88X-Pro Sapphire 280x Sapphire 280x 
RAMHard DriveHard DriveCooling
Patriot Viper Xtreme Div4 1866mhz 60GB Vertex2 WD Caviar 500AAKS XSPC Rasa 
OSPowerCase
Windows 7 64 bit EVGA 1000W G2 Thermaltake Level 10 GTS 
  hide details  
Reply
My gaming desk
(14 items)
 
Miner
(15 items)
 
 
CPUMotherboardGraphicsRAM
AMD FX-8350 ASUS Sabertooth 990FX Sapphire 290x Patriot Viper Extreme Division 4 
Hard DriveHard DriveCoolingCooling
OCZ Vertex 460 WD 1TB Blue Koolance 380A EK-FC R9-290X 
OSMonitorKeyboardPower
Windows 8.1 64-bit Monoprice 27" IPS-Glass Pro Panel DUCKY! Antec HCP 850W 
CaseMouse
Hand built wooden desk Logitech G700S 
CPUMotherboardGraphicsGraphics
AMD A10 7850K ASUS A88X-Pro Sapphire 280x Sapphire 280x 
RAMHard DriveHard DriveCooling
Patriot Viper Xtreme Div4 1866mhz 60GB Vertex2 WD Caviar 500AAKS XSPC Rasa 
OSPowerCase
Windows 7 64 bit EVGA 1000W G2 Thermaltake Level 10 GTS 
  hide details  
Reply
post #19 of 24
I just picked up a Twin Turbo Pro for my Sapphire 6850. The card is around 5c cooler at idle and 10c cooler on full load.

It is also way quieter than the stock Sapphire fan. On full load I would need to run the fan quiet high to keep the memory from overheating. It was VERY noisy.

The card overclocks higher now with better cooling. I think the biggest difference is the addition of RAM heatsinks.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 970 @ 3.2GHz Gigabyte X58A-UD3R Sapphire Radeon 6950 2GB Unlocked [880/1400@1.125] G.Skill 3x2GB 
Hard DriveMonitorKeyboardPower
OCZ Vertex 2 60GB, Western Digital Green 2TB DELL U2311h Steelseries 6Gv2 Corsair AX750 
Case
Silverstone Raven 2 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 970 @ 3.2GHz Gigabyte X58A-UD3R Sapphire Radeon 6950 2GB Unlocked [880/1400@1.125] G.Skill 3x2GB 
Hard DriveMonitorKeyboardPower
OCZ Vertex 2 60GB, Western Digital Green 2TB DELL U2311h Steelseries 6Gv2 Corsair AX750 
Case
Silverstone Raven 2 
  hide details  
Reply
post #20 of 24
Quote:
Originally Posted by bluetroll;12210518 
I just picked up a Twin Turbo Pro for my Sapphire 6850. The card is around 5c cooler at idle and 10c cooler on full load.

It is also way quieter than the stock Sapphire fan. On full load I would need to run the fan quiet high to keep the memory from overheating. It was VERY noisy.

The card overclocks higher now with better cooling. I think the biggest difference is the addition of RAM heatsinks.

I wanted to get a Twin Turbo Pro, but once I crossfire I wont be able to put one on my 2 card because of the PCI-e layout. So it would be pretty pointless.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: ATI Cooling
Overclock.net › Forums › Graphics Cards › AMD/ATI › ATI Cooling › Stock RAM sinks on Sapphire 6850 good enough?