So I started to leak test my new build (log pending) and all seemed to go as planned. I had the reservoir filled and the loop running for about 2-3 minutes when I noticed a pool of water building on top of my PSU. I panicked and turned off the PSU and investigated where the leak was coming from. This is where I became stumped. Small water droplets were collecting on the bottom of the second water block. They were leaking very slowly and this is why I didn't notice it at first. I tried tightening the hex screws connecting the SLI bridge to the water block and had no luck. Could it be possible that the water block itself is leaking? Or is it a problem with the installation of the SLI water block bridge? First time water cooling attempt and first time poster. I'd really appreciate some help and I apologize for any problems with the pictures in the post. Here are links to the pictures if they weren't embedded above. http://s1276.photobucket.com/user/bhputsch/media/DSC_0235_zpsfcfe1ea3.jpg.html?sort=3&o=4 http://s1276.photobucket.com/user/bhputsch/media/DSC_0239_zps1be6e573.jpg.html?sort=3&o=0 http://s1276.photobucket.com/user/bhputsch/media/DSC_0238_zps25e5d68d.jpg.html?sort=3&o=1 http://s1276.photobucket.com/user/bhputsch/media/DSC_0236_zpsbee7d358.jpg.html?sort=3&o=3
Might be worth checking the o-rings on the bridge? In fact - probably worth checking all of the o-rings! I've also moved this to the w/c subforum for you, as you might garner more assistance there
In addition to what jinq-sea has suggested also check the rotary fitting(s). Have the blocks ever been dismantled as it's possible to kink the o ring when reassembling? Also some blocks have a tiny o ring for single screw holes that need replacing every time the block is opened.
Third vote for O rings, particularly the bridge, most likely suspect, the block itself could leak if it's faulty or not properly assembled but I'd suspect the bridge first. Also make sure there is no power to any components except the pump when leak testing, best to use a separate external supply, not only is it safer should you get a leak but you can also let it run while you identify any leaks (just make sure your boards are properly dry afterwards, and don't let your pump run dry). Sent from my GT-I9505 using Tapatalk
Thanks for all the advise guys. I drained the loop and disassembled the SLI bridge to find the culprit. A tiny O-ring that went between the SLI bridge and the water block was slightly out of the groove and created a microscopic space for water to leak out. The darnedest things... Anyways, thanks for all the help. Now I know what to look for next time.