ekwb EK-FB ASUS CROSSHAIR IV Guide

This product is intended for installation only by expert users. Please consult with a qualified technician for installation. Improper installation may result in damage to your equipment. EK Water Blocks assumes no liability
whatsoever, expressed or implied, for the use of these products, nor their installation. The following instructions are subject to change without notice. Please visit our web site at www.ekwaterblocks.com for updates.
Before installation of this product please read important notice, disclosure and warranty conditions printed on the back of the box.
The barb hose fittings require only a small amount of force to screw them in; otherwise the high flow fittings might break. These fittings do not need to be tightened with much force because the
liquid seal is made using o-rings.
STEP 1: GENERAL INFORMATION Sam
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STEP 2: PREPARING YOUR MOTHERBOARD
1. REMOVING STOCK COOLER. Remove all encircled screws. All stock
cooler assembly screws should be removed. There are 6 screws on the back of
the motherboard.
2. CLEANING THE PCB. Carefully detach the original stock cooler after removing all screws
securing it to the board. Wipe off the remains (by using non–abrasive cloth or qtip, as shown
on sample photo) of the original thermal compound until the components and circuit board are
completely clean. EKWB does not recommend using any liquids for removing paste.
3. APPLYING THERMAL COMPOUND
Apply thermal compound: put a small drop of thermal compound on the
Northbridge and Southbridge. For example Céramique™ thermal compound.
Follow this link http://www.arctic-
cooling.com/catalog/product_info.php?cPath=39_&mID=127&language=en for
detailed instructions. EKWB recommends non-conductive MX-2, which should
be applied in cross form for best performance (see sample picture).
4. CUTTING THERMAL PADS. Four thermal pads (90x15x1 mm) are enclosed with your
water block. (WARNING: DIMENSIONS ON PICTURES BELLOW ARE SCALED!)
5. PLACING THERMAL PADS ON MOTHERBOARD. Place thermal pads you cut on PCB as shown on picture bellow.
(PLEASE REMOVE FOIL OF THERMAL PADS PRIOR TO INSTALLATION.)
Installation and mounting manual for EK-FB ASUS CROSSHAIR I
V
water block:
Alldisclosures,noticesandwarrantyconditionsarebeingwrittenonthebackofthebox. Releasedon18thofJune,2010.
Southbridge
Northbridge
Mosfets
CPUsocket
Place thermal pads here and make sure
all mosfet chips are covered.
Apply thermal grease on
Northbridge and Southbridge.

Alldisclosures,noticesandwarrantyconditionsarebeingwrittenonthebackofthebox. Releasedon18thofJune,2010.
STEP 3: PREPARING YOUR WATER BLOCK
1. ATTACHING STANDOFFS. Apply small amount of thermal grease around mounting holes
and place acetal standoffs (thickness 2,5 mm) so the holes are concentric. Thermal paste
provides enough adhesive force for standoffs to stay in a place.
2. PLACING BLOCK OVER GPU. Place the motherboard on the inverted water
block or vice versa and attach it with enclosed screws as shown. Make sure that
mounting holes are aligned.
STEP 4: ATTACHING BLOCK TO MOTHERBOARD STEP 5: PREPARING YOUR NICKEL BACKPLATE
1. MOUNTING THE BLOCK.
Tightening the screws beginning in the center of the block near the
northbridge, and continue evenly outwards. Do not use too much
pressure
on screws, because motherboard might bend and either
cause bad contact with water block, or break a connection on the board.
Use the enclosed screws and washers as shown in diagram below:
1. ATTACHING STANDOFFS. Apply small amount of thermal grease around mounting
holes and place acetal standoffs (thickness 2,5 mm) so the holes are concentric.
Thermal paste provides enough adhesive force for standoffs to stay in a place.
STEP 5: ATTACHING BACKPLATE TO MOTHERBOARD 6. POSITIONING FITTINGS AND CONNECTING TO WATER CIRCUIT
Use M3x12 DIN965 screws in order to attach backplate to motherboard. Screws go into
full board block. Backplate provides better contact along mosfet chips, thus block
performs better.
Please use spacer on shown hole only if you use fitting with G1/4 thread longer than
5mm (see sample picture). Attach the liquid cooling tubes and connect the water-
block(s) into the cooling circuit. EKWB recommends using high flow fittings with the
EK-FB Crosshair 4 series water blocks. To ensure that the tubes are securely attached
to the barb/fittings, please use hose clamps or an appropriate substitute. The use of an
algaecide is always recommended for any liquid cooling system.
You can use any hole as an inlet/outlet hole.
STEP 7: CHECKING FOR CONTACTS
Temporarily r emove the water block to check for uniform surface contact between the block and the components. Note the pattern of contact on a piece of paper. Then repeat
steps 3 and 5 to reattach the block applying more or less pressure to the areas where you have found it necessary.
REQUIRED TOOLS AND MOUNTING SCREWS:
scissors philips screwdriver 4 screws M3x8 DIN7985 2 screws M3x12 DIN965 
Make sure both of these two surfaces are fully
covered with enclosed thermal pads, otherwise
you may cause circuiting of board and making it
useless!
Please use the enclosed insulating
washers on all M3x8mm screws.
M3x12 DIN965
Fitting/barb
Spacer
Washer