After spending a considerable amount of time trying to work out why my 4870X2 wouldn’t boot up after installing the EK water block I finally nailed it last night.
The card wouldn't power up. Two LED's would light up on the 4870X2, these LED's were g13 and g14 which indicate the 6pin and the 8pin power isn’t connected.
The screw that causes the board to short circuit is this fella:
The fix is to use spacers on the card, if you don’t have enough to cover all the screws then make sure that the screw circled above has a spacer - the EK block only comes with 6 spacers for the RAMS, this is for the "L" shaped backing plate.
The actual cause of the problem is a screw that is shorting the board. If you have nylon screws then this will alleviate any problems and this is something I strongly recommend. You may notice your card bends slightly with this block, i found that thicker spacers can assist with keeping the card straight.
http://www.hardforum.com/showthread.php?t=1343401
Here's a thread with that issue
http://www.overclock.net/ati/388361-...functions.html
And yet another thread this one by an experienced LC modder with the same issue
http://www.ekwaterblocks.com/downloa...stallation.pdf
The EK PDF that mentions using the washers
http://ekwaterblocks.com/shop/produc...roducts_id=303
And a mention of the issue on the EK site.
I applied spacers to all screws
The EK water block is an awesome block for the 4870X2 once the spacers are installed. My idle temps have gone from 72°c to 28°c and my load temps increase by 4 degrees with stock clock settings.
Well I hope this post helps anyone installing this block, I know it's been a problem for many across the water cooling realm. :thumbup:
The card wouldn't power up. Two LED's would light up on the 4870X2, these LED's were g13 and g14 which indicate the 6pin and the 8pin power isn’t connected.
The screw that causes the board to short circuit is this fella:
The fix is to use spacers on the card, if you don’t have enough to cover all the screws then make sure that the screw circled above has a spacer - the EK block only comes with 6 spacers for the RAMS, this is for the "L" shaped backing plate.
The actual cause of the problem is a screw that is shorting the board. If you have nylon screws then this will alleviate any problems and this is something I strongly recommend. You may notice your card bends slightly with this block, i found that thicker spacers can assist with keeping the card straight.
http://www.hardforum.com/showthread.php?t=1343401
Here's a thread with that issue
http://www.overclock.net/ati/388361-...functions.html
And yet another thread this one by an experienced LC modder with the same issue
http://www.ekwaterblocks.com/downloa...stallation.pdf
The EK PDF that mentions using the washers
http://ekwaterblocks.com/shop/produc...roducts_id=303
And a mention of the issue on the EK site.
I applied spacers to all screws
The EK water block is an awesome block for the 4870X2 once the spacers are installed. My idle temps have gone from 72°c to 28°c and my load temps increase by 4 degrees with stock clock settings.
Well I hope this post helps anyone installing this block, I know it's been a problem for many across the water cooling realm. :thumbup:
