Ekwb EK-FC4890LT Mode d’emploi

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.

Fittin

/barb

Plug G1/4 Spacer rin

O-rin

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

Step 5.

Place the graphic card on the inverted water block and attach it with enclosed screws as shown in

picture 5.

For

perfect thermal contact, the block does not use a spring mounting system; therefore

when attaching be very careful to tighten all screws equally. If the screws are tightened too much, the

graphic card board will distort and may be damaged.

To prevent warping of card please use enclosed standoffs and apply them as shown on

picture 4 above (prior to aligning standoffs with mounting holes, please apply some

thermal grease around the thread to prevent standoffs falling off).

Use enclosed screws like shown on picture below:

M3 x 8 screws

Picture 5: Mounting installation

Step 6. Remove the block and check for contact surface. Then repeat steps 3 and 4. And apply more

or less pressure on area where you have found it necessary.

Step 7. Connecting the water-block(s) to the cooling circuit and attaching the tubes:

The EK-FC 4890LT series are usually sold with enclosed high flow fittings. To secure the tubes stays

properly on the fittings please use hose clamps or appropriate substitute. The use of an algaecide is

nonetheless recommended in any liquid cooling system.

VERY IMPORTANT NOTICE:

Once the installation is completed, it is a recommended practice to test the cooling circuit for leaks prior to powering up

the computer. We recommend a 24 hour leak test prior to powering up the computer. Do not test the water block using

city water pressure. This will rupture the top of the housing and render the block unusable (and will void your

warranty).

WARRANTY:

Our products are warranted against defects in materials or workmanship for a period of 24 months beginning from the

date of delivery to the final user. During this period, products will be repaired or have parts replaced at our discretion

provided that: (I) the product is returned to the agent from whom it was purchased; (II) the product has been

purchased by an end user and has not used for commercial purposes; (III) the product has not been misused, handled

carelessly, or used in a manner other than in accordance with the instructions provided describing its installation and

proper use. This warranty does not confer rights other than those expressly set out above and does not cover any claims

for consequential loss or damage. This warranty is offered as an extra benefit and does not affect your statutory rights

as a consumer. This warranty is voided if the product comes in contact with aggressive UV additives.

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