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Pump and stuff ordered but question about angle fittings in last post. - Page 2

post #11 of 57
Thread Starter 
Okay so is this everything I need?


multi-link: http://www.frozencpu.com/products/10743/ex-tub-668/Bitspower_SLI_Crossfire_Multi-Link_Adapter_Pair_-_Matte_Black_BP-MBWP-C47.html#blank

crystal link: http://www.frozencpu.com/products/10744/ex-tub-669/Bitspower_SLI_Crossfire_Crystal_Link_Tube_Set_-_2_Slot_Spacing_BP-CLTAC-S2.html

Pump: http://www.frozencpu.com/products/11740/ex-pmp-109/Swiftech_MCP35X_12v_PWM_Controlled_Water_Pump_-_Black.html

Reservoir: http://www.frozencpu.com/products/20924/ex-res-636/XSPC_Photon_270_Tube_Glass_Cylinder_Reservoir.html#blank

block: http://www.frozencpu.com/products/21663/ex-blc-1567/EK_Radeon_R9-290X_VGA_Liquid_Cooling_Block_-_Acetal_Nickel_EK-FC_R9-290X_-_AcetalNickel.html?tl=g57c599s2078#options
Edited by HardwareDecoder - 2/21/14 at 8:19pm
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post #12 of 57

You need a backplate, especially for the R9 290x. A full coverage waterblock is a huge chunk of copper and plastic, it's heavy. Having that on a device that has 300+watts of heat outputting at a single point can cause the PCB on the graphics card to warp, and bow. A backplate keeps that from happening.

Be sure to get enough crystal link fittings for your application, if you run in parallel you'll need 4 for two waterblocks, if you run in series you'll only need two.
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post #13 of 57
Thread Starter 
Quote:
Originally Posted by ZytheEKS View Post

You need a backplate, especially for the R9 290x. A full coverage waterblock is a huge chunk of copper and plastic, it's heavy. Having that on a device that has 300+watts of heat outputting at a single point can cause the PCB on the graphics card to warp, and bow. A backplate keeps that from happening.

Be sure to get enough crystal link fittings for your application, if you run in parallel you'll need 4 for two waterblocks, if you run in series you'll only need two.

good tip on the links, I never bought a backplate for my current 290x though and never had an issue?
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post #14 of 57
Uhh.. I thought backplates were cosmetic and at best provided a little passive cooling..

I don't think a backplate will really distribute the load anymore since all it is doing is adding a piece of metal between the screws and the block.
post #15 of 57
Thread Starter 
Quote:
Originally Posted by SlvrDragon50 View Post

Uhh.. I thought backplates were cosmetic and at best provided a little passive cooling..

I don't think a backplate will really distribute the load anymore since all it is doing is adding a piece of metal between the screws and the block.

thats what i thought. I don't really want to drop $60 on cosmetics, like I said I haven't had one since November or whenever I got this card and waterblock.
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post #16 of 57
Straight from EK's description
Quote:
Backplate cover the whole lenght of graphics cards PCB, serves as an aesthetic add-on and also provides passive cooling for the VRM (Voltage Regulation Module) on the backside of the circuit board.
post #17 of 57
Quote:
Originally Posted by HardwareDecoder View Post

good tip on the links, I never bought a backplate for my current 290x though and never had an issue?

Quote:
Originally Posted by SlvrDragon50 View Post

Uhh.. I thought backplates were cosmetic and at best provided a little passive cooling..

I don't think a backplate will really distribute the load anymore since all it is doing is adding a piece of metal between the screws and the block.

You're attaching a two pound chunk of metal and plastic, more once you add water, to a roughly 12" x 5" PCB where 80% of the 300+ watt heatload is generated in a 5cm x 5cm area, with pressure on the area generating heat. Heat and pressure will cause the PCB to warp.

It's not just cosmetic, google waterblock PCB warping and you'll find tons of stories.
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post #18 of 57
Yea, but the backplate isn't really moving the stress loads. You're just adding extra weight to the top of the PCB in addition to a load below the PCB.

I see what you're trying to say, but the load is still being exerted on the PCB.

Maybe EK has a different design than Heatkiller's, but unless there is another screw point attachment on the PCI side, the backplate won't help reduce the stress tensors on the PCB.
post #19 of 57
Quote:
Originally Posted by SlvrDragon50 View Post

Yea, but the backplate isn't really moving the stress loads. You're just adding extra weight to the top of the PCB in addition to a load below the PCB.

I see what you're trying to say, but the load is still being exerted on the PCB.

Maybe EK has a different design than Heatkiller's, but unless there is another screw point attachment on the PCI side, the backplate won't help reduce the stress tensors on the PCB.

It won't change the pressure true, but it prevents the PCB from bending. If it can't bend then it can't warp.
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post #20 of 57
I don't really see how it prevents the PCB from bending any more than the waterblock.

The waterblock is screwed onto the PCB at several points so you are eseentially screwing on the PCB to a stiff block.
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