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Card overheating in crossfire

post #1 of 8
Thread Starter 
Ok need some help - I have just changed my loop from a dual parallel EK bridge to a Triple because of the spacing on my new motherboard and now the top card is overheating.

The card will idle at 61*C and running Furmark just keeps climbing however the 2nd card is fine as it tops out at 48*C which is where it was before.

CPU is fine and I have not changed the block fitting in any way and both cards were fine before.

Nothing else in my loop has changed other than the bridge

loop goes - Res-Pump-RX240-CPU-RX360-Card 1-Card 2-Res
post #2 of 8
Spacing doesn't matter.
I am using a koolance single slot spacer

Case Labs th10
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Case Labs th10
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post #3 of 8
Perhaps the waterblock was not installed properly, or not enough TIM was applied.
post #4 of 8
Thread Starter 
I've been running these 2 cards as they are for weeks with no issues using an EK double bridge. Changed to the triple today and the 1st card is overheating so the blocks and TIM are fine.

Also the card cools down as quick as the 2nd one just not to the same temp
Edited by Riskitall84 - 8/6/11 at 11:07am
post #5 of 8
Most likely poor flow through the hot card, possibly some bubbles trapped in it also.
48ºC on the card that is doing ok isn't exactly great either, but is fine for a video card.
You don't really have what could be considered a high performance pump, so any little thing about the Ek bridge setup that causes the flow resistance to be lower through one card than the other could have a pretty big effect.

Do you have a picture of the setup you can post?
Grog
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Grog
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post #6 of 8
Thread Starter 
Quote:
Originally Posted by Caleal View Post
Most likely poor flow through the hot card, possibly some bubbles trapped in it also.
48ºC on the card that is doing ok isn't exactly great either, but is fine for a video card.
You don't really have what could be considered a high performance pump, so any little thing about the Ek bridge setup that causes the flow resistance to be lower through one card than the other could have a pretty big effect.

Do you have a picture of the setup you can post?
I didn't mention anything about my pump? But its an MCP355 which is a high performance pump. I'm thinking ill have to re do that part of my loop and check the flow.

I'll post a picture of my setup in a little while.
post #7 of 8
Quote:
Originally Posted by Riskitall84 View Post
I didn't mention anything about my pump? But its an MCP355 which is a high performance pump. I'm thinking ill have to re do that part of my loop and check the flow.

I'll post a picture of my setup in a little while.
Ahh, sorry, for some reason I was thinking you were using an XSPC res/pump combo.
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AquagraFX470 EK FC-88 Koolance RP402x2 MCP35x pumps 
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Grog
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TC Folding Gimp
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i7-950 Asus P6X58D-E Asus ENGTX470 BFG 9800GT 
RAMHard DriveOptical DriveCooling
Corsair Dominator GT Velociraptor 3000HLFS Lite On DVD burner EK Supreme HF 
CoolingCoolingCoolingCooling
AquagraFX470 EK FC-88 Koolance RP402x2 MCP35x pumps 
CoolingCoolingOSMonitor
Phobya Extreme 200 and Quad 480 radiators. 9x Akasa Viper fans Windows 7 Ultimate Old LG Flatron 1680x1050 
KeyboardPowerCase
Logitech G15 + Logitech G13 game pad Thermaltake 850W Corsair 600T 
CPUMotherboardGraphicsRAM
Phenom x4 9650 Cheap MSI board EVGA GTX580 SC Junk PC-800 DDR2 
Hard DriveOptical DriveCoolingOS
WD Blue Generic DVD Cuplex Kryos HF CPU block, Swiftech MCW82 GPU b... Windows 7 Home Premium 
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post #8 of 8
Thread Starter 
Solved - Was just air
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