Installation and mounting manuals for EK-FC4890LT (Light) water block:
This product is intended for expert users. Please consult with a qualified technician for installation. Improper installation may
result in damage to your components. 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.
If you need to screw in the fittings, please use small amount of force otherwise the high flow
fittings might break. The fittings do not need to bi tightened with high force. Use spacer with o-
ring on all 4 G1/4 threads.
Fitting/barb
Plug G1/4
Spacer ring
O-ring
Picture 1: Spacer ring with o-ring placement.
Picture 2: Radeon 4890 PCB
Step 1. Remove the graphic card from computer.
Step 2. Remove original heat sink and remove remains of original thermal compound. So the graphic
card remains clean.
Step 3. Apply thermal compound: lightly coat the GPU, RAMs and Chip with for example Céramique™
thermal compound. Follow this link
http://www.arcticsilver.com/ceramique_instructions.htm
for detailed
instructions. EK Water Blocks recommends non-conductive Arctic Sylver Céramique™. (picture 3)
Step 4. Apply small amount of thermal grease around mounting holes and place standoffs so tht holes are
concentric. Thermal grease provides enough adhesive force for standoffs to stay in a place. (picture 4)
1 mm thick thermal pad
for power regulator chips
1 mm thick thermal pads for 8
RAM modules
Picture 3: Radeon 4890 series graphic card. Cut Picture 4: Apply small amount of thermal grease to
thermal pads on size that fits RAM modules and VRC.
fix the standoffs on right position
Place them as shown on picture. Thermal pads are
adhesive, so no extra glue is needed.
0,5 mm thick thermal
10 × 2,1 mm standoffs
