EK EK-Quantum Vector Red Devil RX 6800/6900 User manual

USER GUIDE
GPU WATER BLOCK
EK-Quantum
Vector Red Devil RX 6800/6900

Before you start using this product, please follow these basic guidelines:
Carefully read the manual before beginning with the
installation process.
Remove your graphics card from the computer for the safest
mounting process to prevent any possible damage to your
GPU or its circuit board (PCB).
EK Fittings require only a small amount of force to screw
them firmly in place since the liquid seal is ensured with the
rubber O-ring gaskets.
The use of quality market-proven corrosion-inhibiting
coolants is always strongly recommended for any liquid
cooling system.
Do not use pure distilled water as a cooling liquid! For best
results, EK recommends the use of EK-CryoFuel Coolants.
Make sure to bleed air out of your water block thoroughly in
order to reach optimal performance.

- 3 -
TABLE OF CONTENTS
BOX CONTENTS 4
WATER BLOCK DIMENSIONS 5
TECHNICAL SPECIFICATIONS AND PRODUCT PARTS 6
PREPARING YOUR GRAPHICS CARD 7
REMOVING THE STOCK BACKPLATE 7
REMOVING THE STOCK COOLER 7
CUTTING AND PLACING THERMAL PADS 8
CLEANING THE PCB 8
APPLYING THERMAL COMPOUND 9
INSTALLING THE WATER BLOCK 10
PLACING THE BLOCK ON THE GRAPHICS CARD 10
ATTACHING THE BLOCK TO THE GRAPHICS CARD 10
CHECKING THE CONTACT IN CASE OF HIGH TEMPERATURES 11
INSERTING THE GRAPHICS CARD INTO THE CHASSIS 11
INSTALLATION OF FITTINGS AND TUBING 12
CONNECTING THE D-RGB LED STRIP 12
TESTING THE LOOP 13
SUPPORT AND SERVICE 14
SOCIAL MEDIA 14

- 4 -
Allen Key 2 mm (1 pc)
BOX CONTENTS
4 mm
EK-Loop Multi Allen Key (1 pc)
M2.5 Nut (6 pcs)
Allen Key 2.5 mm (1 pc)
Thermal Pad F 1.0 mm (4 pcs)
Thermal Grease (1 pc)
M2.5x4 AX1 Screw (30 pcs)
EK-Quantum Vector Red Devil RX 6800/6900
PVC Washer M2.5 (28 pcs)
120 mm
16 mm
EK-Plug G1/4 (2 pcs)
Universal Mounting Mechanism – You may not need every
screw from this package. EAN: 3831109834688

- 5 -
WATER BLOCK DIMENSIONS
284.5 mm
193.9 mm
164.9 mm
135.3 mm
150.6 mm
16.9 mm
18.4 mm

- 6 -
TECHNICAL SPECIFICATIONS AND PRODUCT PARTS
Technical Specification:
- Dimensions: (L x H x W) – 284.5 x 150.5 x 18.5 mm
- D-RGB cable length: 500 mm
- D-RGB LED count: 9
- D-RGB connector standard 3-pin (+5V, Data, Blocked, Ground)
Position EAN Description Quantity
1, 2, 3 103431 Terminal cover 1
4103552 Top plate (plexi) 1
103553 Top plate (acetal)
5101290 LED D-RGB 1
6103555 Standout (plexi) 1
103557 Standout (acetal)
7103145 Standoff M4-M2.5 x 2.5 - L13.6 3
8101076 D-RGB Wire 1
9100663 EK RGB Badge 1
10 8533 Standoff M4/M2.5 x 2.5 12
11 103551 Coldplate (Nickel) 1
12 103558 Main O-ring 143 x 2 1
13 101340 Jet plate 1
14 103811 TOP Plexi Insert 1
15 9013 M4 x 8 Screw 14
16 5155 O-ring (FC Terminal 15 x 1) 2
17 101628 FC Terminal 1
18 8311 M4 x 20 Screw 3
14
13
1
5
9
3
6
10
7
8
17
18
15
16
2
4
12
11
STANDOFF M4/2.5 x 2.5
STAN DOFF M4-2.5 x 2.5 - L13.6

- 7 -
PREPARING YOUR GRAPHICS CARD
You will need the following tool:
Phillips Head Screwdriver
STEP 1
STEP 2
STEP 2
REMOVING THE STOCK COOLER
Use the Phillips head screwdriver to unscrew the fourteen (14)
marked screws – twelve (12) from the bottom side and two (2)
from the side of the I/O Bracket. Carefully detach the PCB from
the stock cooler and disconnect all cables connecting the stock
cooler to the PCB.
Always remove the stock cooler slowly - it might be firmly
glued to the PCB with thermal pads.
STEP 1
REMOVING THE STOCK BACKPLATE
Use the Phillips head screwdriver to unscrew the twelve (12) marked
screws. Evenly untighten four (4) retention bracket screws for easier
disassembly. Remove the Backplate and the Retention bracket from
the backside of the GPU.
BAC KP L ATE
RETENTION BRACKET

- 8 -
STEP 3
CLEANING THE PCB
Wipe off the remains of the original thermal compound using a
nonabrasive cloth or Q-tip, as shown in the sample image, until the
components and circuit board are completely clean. EK recommends
the use of denatured alcohol for removing TIM leftovers. After that,
remove all remaining stock thermal pads from the PCB.
STEP 3
STEP 1
Your GPU water block comes with thermal pads that have to be cut
into smaller pieces to cover all the VRM components, such as COILs,
MOSFETs, and drivers.
You must remove the protective foil from both sides of the
thermal pad before installation.
Thermal pads:
4x Thermal Pad F 1.0 mm – (120 x 16 mm) EAN: 3830046996732
STEP 1
Thermal Pad F – 1.0 mm (120 x 16 mm)
CUTTING AND PLACING THERMAL PADS
120 mm
16 mm
1 mm

- 9 -
STEP 2
STEP 2
Once cut to size, thermal pads should be placed on the PCB, as
illustrated below. EK made sure to provide you with more than an
adequate quantity of thermal pads to complete this Step.
Thermal Pad F 1.0 mm
Thermal Grease
STEP 1
Apply the enclosed EK-TIM Ectotherm thermal grease (thermal
compound) on the GPU heat spreader – IHS – as shown in the
image. The layer of the thermal compound must be thin and even
over the entire surface of the IHS.
The excessive or uneven application of thermal grease
may lead to poor performance!
STEP 1
APPLYING THERMAL COMPOUND
For this Step, you will need:

- 10 -
INSTALLING THE WATER BLOCK
STEP 1
PLACING THE BLOCK ON THE GRAPHICS CARD
This procedure is the same for all full-cover water blocks. Carefully
position the water block with preinstalled standoffs on the
graphics card. During this process, make sure you have aligned
mounting holes of the PCB with holes of the water block (same
applies to other tops).
Pay attention not to use too much force when pressing
the block down to the PCB since chip dies are prone
to cracking.
STEP 1
For this Step, you will need:
M 2.5 PVC Washer
(15 pcs)
M2.5 x 4 AX1
Screw (15 pcs)
Phillips Head
Screwdriver
4 mm
STEP 2
M2.5 x 4 AX1 SCREW
M2.5 PVC WASHER
STEP 2
ATTACHING THE BLOCK TO THE GRAPHICS CARD
Use fifteen (15) M2.5 x 4 AX1 screws and fifteen (15) M2.5 PVC
washers. Tighten the screws evenly using the Phillips head
screwdriver. EK recommends you start tightening the screws
around the GPU core first and then continuing outward to prevent
damage to the GPU.

- 11 -
CHECKING THE CONTACT IN CASE OF HIGH TEMPERATURES
If necessary, temporarily remove the water block to check for
uniform surface contact between the block and components.
Pay special attention to the VRM section of the graphics card.
Check whether the water block makes contact with the intended
integrated circuit. Then repeat Steps from the previous section to
re-attach the block.
In case you fail to obtain good contact, please check
again or contact our support service at
https://www.ekwb.com/customer-support/.
INSERTING THE GRAPHICS CARD INTO THE CHASSIS
Carefully lift your graphics card with the installed water block and
insert it into your PC’s motherboard PCIexpress expansion slot.
Please keep in mind that your graphics card is heavier than before it
was equipped with the water block.
You need to be very careful when handling the
graphics card. Avoid all unnecessary manipulation
of the water block assembly that might damage your
card or water block.

- 12 -
INSTALLATION OF FITTINGS AND TUBING
STEP 1
Screw in two (2) G1/4 threaded male fittings. Attach the liquid
cooling tubes and connect the water block(s) to the cooling loop.
Do not forget to plug the remaining two openings with
enclosed EK-Plug G1/4 or its equivalent.
EK recommends using EK fittings with all EK water blocks.
CAUTION: When using connectors other than EK fittings,
pay special attention to the length of the fittings male G1/4”
thread - 5mm is the maximum G1/4” thread length allowed!
STEP 1
TUBING
EK- PLUG
G1/4 EK-FITTING
CONNECTING THE D-RGB LED STRIP
STEP 1
Plug the 4-pin D-RGB connector from the GPU water block to the
D-RGB Header on your motherboard or controller. The LED strip will
work only if the pin layout on the header is as follows: +5V, Data,
Empty, Ground.
Incorrect installation or installation to a wrong header can
damage to the LED strip or the header itself!
STEP 1
D-RGB HEADER
RGB HEADER

- 13 -
To ensure the installation of EK components was successful, we
recommend you perform a 24-hour leak test.
When your loop is complete and filled with coolant, connect the
pump to a PSU outside your system. Do not connect power to any
of the other components. Turn on the PSU and let the pump run
continuously.
Inspect all parts of the loop, and in case the coolant leaks, fix
the issue and repeat the testing process. To prevent possible
damage, please ensure all hardware is dry before the system is
powered on.
TESTING THE LOOP

In case you need assistance or wish to order spare parts or a new
mounting mechanism, please contact:
https://www.ekwb.com/customer-support/
For spare parts orders, refer to the page with “TECHNICAL
SPECIFICATIONS AND PRODUCT PARTS” where you can find the
EAN number of each part you might need.
Include the EAN number with quantity in your request. Mounting
Mechanism EAN can be found under “BOX CONTENTS”
Thermal pads are readily available in the EK shop
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SUPPORT AND SERVICE
SOCIAL MEDIA