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EK-FC680 GTX+ vs GTX without + - Page 2

post #11 of 18
11/11/12 at 7:22pm
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Think I figured out whats up and I appear to not be the only one.

http://www.overclock.net/t/1240214/gtx-680-ek-waterblock-with-evga-backplate-troubles

It seems the EVGA backplates are just not compatible with EKWB on 6xx cards. Therefor the "customer" verified fitment of the EKWB on my evga 2686 modeled GTX680 is incorrect. The 2686 model includes the evga backplate.

This brings me to 2 questions:
Can I use the WB without the evga back plate? I don't want the vram on the back to fry, but not sure if the back plate is necessary.
Also, would the EK backplate work with the vram on the back? That would solve my fitment issue as long as it works with the 4GB vram cards that have vram on the back.
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post #12 of 18
11/11/12 at 7:25pm
Quote:
Originally Posted by Strobe View Post

I'd be afraid to get ones that were to long and the head sizes vary so if the head was small enough to go into the backplate the screw length could be shorter.

Oh jeez, I was planning on getting the EVGA 2685 model w/backplate with this block... Now I'm rethinking things. I've heard about a lot of incompatability issue with backplates.
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post #13 of 18
11/11/12 at 7:32pm
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If I knew that EK backplate would work with the extra VRAM on the back of my card I'd be game to pay for it just to get rid of this nightmare, but thats not even a guarantee at the moment. On top of that, it seems no one has the EK backplate in stock. Just want to return this EKWB and 680 due to this frustration it has caused and stick with my trusty 580. Going to reach out to EK and try and get to the bottom of the GTX vs GTX+ WB difference and see what they can do about these screws/backplates.
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post #14 of 18
11/11/12 at 7:37pm
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Quote:
Originally Posted by DarkHollow View Post

Looks like there is no real difference, take a look:
GTX

GTX+

The difference is purely visual, the compatibility is the same for both blocks.
GTX Compatibility
GTX+ Compatibility

To top everything off, I just realized another difference in the CSQ design after looking at it 50x. The older design has the reversible barb setup so I can have one go up and one go down. CSQ design doesn't stick out past the PCB thus making them both down firing and changing my loop (need new fittings). Really want to return this block, but have already cut the thermal pads. This is terrible design by EK considering you can't find the non-CSQ anywhere.
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post #15 of 18
11/12/12 at 10:37am
Quote:
Originally Posted by Strobe View Post

Think I figured out whats up and I appear to not be the only one.
http://www.overclock.net/t/1240214/gtx-680-ek-waterblock-with-evga-backplate-troubles
It seems the EVGA backplates are just not compatible with EKWB on 6xx cards. Therefor the "customer" verified fitment of the EKWB on my evga 2686 modeled GTX680 is incorrect. The 2686 model includes the evga backplate.
This brings me to 2 questions:
Can I use the WB without the evga back plate? I don't want the vram on the back to fry, but not sure if the back plate is necessary.
Also, would the EK backplate work with the vram on the back? That would solve my fitment issue as long as it works with the 4GB vram cards that have vram on the back.

I believe you can use the WB without the backplate. From that forum, it seems a guy got away with just using the four screws around the processor with the backplate on; if you still want to try that. Also it looks like a guy also got some m3 screws long enough to fit from the hardware store. A lot of people were scared of stripping the block, so be careful. This is really a bummer though. The backplate is just for minimal heat dissapation 1-2cels and primarily aesthetic, so I wouldn't worry about the vram frying as long as you have case fans and decent case cooling.
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post #16 of 18
11/12/12 at 10:43am
Strobe, this forum could be helpful.

http://www.evga.com/forums/tm.aspx?m=1663457&mpage=1&print=true
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post #17 of 18
11/12/12 at 11:34am
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Quote:
Originally Posted by Arock5504 View Post

Strobe, this forum could be helpful.
http://www.evga.com/forums/tm.aspx?m=1663457&mpage=1&print=true

Good find. Looks like he only put one screw in besides the 4 around the gpu chip. That would probably be enough to hold it alright. Using just the 4 around the gpu it seems there is a SLIGHT sag towards the end of the block. Still makes contact, just can be pressed a little tighter which worries me. There is one M3x6 screw provided to secure the pci plate to the PCB and that extra 2mm longer screw might work good for putting it in that one in the end rather than securing the pci bracket. I can just use the 4mm long one for that probably.

I would try to leave the backplate off and let the vram just chill on the back, but I have a low airflow case. I have all my fans directed for the radiator so passive cooling doesn't work so well if its not covered by a waterblock. I have my fans turned down to about 750rpm during normal usage and if temps go up or I got a good gaming session going on i spin them up to about 1000rpm so I got pretty little airflow. Still manage to keep cpu under 60c and gpu (current gtx580) around 50-55c on load with a single RX240 and those slow fans.

EK did get back with me and offered to send me 8mm long screws but I fear those would be too long. 6mm probably would be just right from eyeballing it.

Still think I might try and return/sell the block and get a different one as I can't believe I overlooked the double down firing holes on the CSQ design. Screws my loop up big time.
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post #18 of 18
11/12/12 at 7:08pm
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Everyone, I have put my solution into a different thread with using 6mm long screws.
fitment solution thread

If anyone has any other ideas on the differences between GTX and GTX+ versions of the waterblock I'd like to know. Thanks!
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C300 128GB SSD, 1TB iSCSI Blu-Ray Combo Windows 7 Pro - 64bit 3x Dell U2412M 
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