ekwb EK-FB GA 990FXA-UD7 Manual

All disclosures, notices and warranty conditions are being written on EKWB web page. Please check terms of use. Released on 18hof August, 2011.
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 or our home page.
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. The use of corrosion inhibitors is always recommended for any liquid cooling system.
STEP 1: GENERAL INFORMATION Sample photo of Gigabyte GA-990FXA-UD7 motherboard
STEP 2: PREPARING YOUR MOTHERBOARD
1. REMOVING STOCK COOLER. Remove all encircled screws. There are 8
screws on the back of the motherboard that needs to be removed in order to
remove the factory installed NB/SB/MOSFET heatpipe cooling solution.
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 TIM leftovers.
3. APPLYING THERMAL COMPOUND. Apply thermal compound: lightly coat
the AMD 990FX (NB) as well as SB950 (SB) chip with electrically non-
conductive thermal grease - for example Arctic Cooling MX-2 ™or MX-4 ™.
EKWB recommends to apply thermal grease in cross form for best performance
(see sample picture).
4. CUTTING THERMAL PADS. Your block comes with one precut thermal pad (90x15x1mm)
which needs to be trimmed a bit in order to fit the voltage regulation area (VRM/MOSFET) on
the motherboard’s circuit board. 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 THE PROTECTIVE FOIL FROM BOTH
SIDES OF THE THERMAL PADS PRIOR TO INSTALLATION). EK recommends using small drops of electrically non-conductive (for example: Arctic Cooling MX-2 ™ or MX-4 ™)
thermal grease on each phase regulator (that is being covered with thermal pad; see picture below) in order to even further improve the thermal performance of the EK-FB GA
990FXA UD7 series water block.
Southbridge
Northbridge
Mosfets
CPU socket
Installation and mounting manual for EK-FB GA 990FXA-UD7 water block:
Place thermal pads in marked area and
make sure all mosfet chips are covered.

All disclosures, notices and warranty conditions are being written on EKWB web page. Please check terms of use. Released on 18hof August, 2011.
STEP 3: PREPARING YOUR WATER BLOCK
1. PLACING STANDOFFS ON BLOCK. Brass standoffs are necessary in order to attach
this water block to the printed circuit board of the motherboard. Please use the
enclosed key to screw them to the copper base of the water block. There is no need to
overtightening the standoffs as nickel plating or threads may get damaged (also be
careful with handling the key not to scratch the surface).
2. PLACING BLOCK ON MOTHERBOARD. Place the waterblock gently to the
motherboard or vice versa. Make sure that mounting holes are aligned. Repeat the
same with SB heatsink.
STEP 4: ATTACHING BLOCK TO MOTHERBOARD STEP 5: CHECKING FOR CONTACTS
Prior to fastening the screws please make sure the mounting holes on the
motherboard’s circuit board are aligned with the waterblock and SB heatsink. Tighten
the screws, beginning near the northbridge, and continue evenly outwards. Do not use
excessive force when tightening the screws!
Use the enclosed screws and washers as shown in picture below:
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 4 to reattach the block applying more or less pressure to the areas
where you have found it necessary.
6. POSITIONING FITTINGS AND CONNECTING TO WATER CIRCUIT
Please use the provided 1.8mm spacer along with the gasket only if you use fitting with G1/4 thread longer than 5mm (see left picture). Attach the liquid cooling tubes and
connect the water-block(s) into the cooling circuit. EKWB recommends using EK-PSC compression fittings with the EK-FB ASUS Crosshair V series water block. You can use any
opening as an inlet/outlet port.
REQUIRED TOOLS AND MOUNTING SCREWS:
scissors philips screwdriver thermal grease 6x screws M2.5x4 DIN7985 6x PVC washers
Standoff key
2.1mm brass standoff
EK-PSC fitting
Tubing
PVC washer
M2.5x4 screw
Waterblock
SB heatsink
Chip die thermal grease imprint
Thermal pad imprints