EK Quantum Momentum2 Pro WS W790-ACE User manual

USER GUIDE
MONOBLOCK
EK-Quantum
Momentum2Pro WS W790-ACE - Full Metal

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 website at www. ekwb.com for updates.
Before installation of this product please read the important notice,
disclosure, and warranty conditions printed on the back of the box.
Before you start using this product, please follow these basic guidelines:
Please carefully read the manual thoroughly before beginning
the installation process!
Please remove your motherboard from the computer to
assure the safest mounting process in order to prevent any
possible damages to your CPU and/or motherboard’s circuit
board (PCB).
The EK-Fittings require only a small amount of force to screw
them firmly in place since the liquid seal is ensured by the
rubber o-ring gaskets.
The use of quality, market-proven corrosion inhibiting
coolants is always strongly recommended for any liquid
cooling system.

- 3 -
TABLE OF CONTENTS
BOX CONTENTS 4
WATER BLOCK DIMENSIONS 5
TECHNICAL SPECIFICATIONS AND WATER BLOCK PARTS 6
PREPARING THE MOTHERBOARD 7
REMOVING THE STOCK COOLER 7
CUTTING AND PLACING THERMAL PADS 8
APPLYING THERMAL COMPOUND 10
PREPARING THE WATER BLOCK FOR INSTALLATION 11
ATTACHING THE WATER BLOCK 11
TESTING THE LOOP 14
SUPPORT AND SERVICE 15
SOCIAL MEDIA 15

- 4 -
BOX CONTENTS
5 mm
Tor x T30
M2.5x5 AX1 Screw (6 pcs)
Washer M2.5 0.5 mm (6 pcs)
EK-Quantum Momentum2Pro WS W790-ACE - Full Metal
Allen Key 2 mm (1 pc)
Thermal grease (1 pc)
Thermal Pad G 1.0 mm (120x24) (3 pcs) Thermal Pad G 2.0 mm (120x24) (3 pcs)
120 mm
24 mm
120 mm
24 mm

- 5 -
WATER BLOCK DIMENSIONS
172.3 mm
181.7 mm
152.1 mm
78.7 mm
106.7 mm
77.8 mm
135.5 mm
173.1 mm
32 mm

- 6 -
TECHNICAL SPECIFICATIONS AND WATER BLOCK PARTS
Technical Specification:
- Dimensions: (LxHxW) – 181.7x173.1x32mm
Position EAN Description Quantity
1103674 Nickel Core Coldplate 1
23831109861097 Mounting Plate - LGA4677 1
3106559 Nickel Midplate 1
4106564 Steel Midplate 1
5106557 TOP Acetal 1
6106265 Black Aluminium Cover 1
79019 Screw M3x18 DIN7984 10
89016 Screw M3x12 DIN7984 11
9106566 Aluminium EK sticker 1
10 106633 Steel Jet Plate 1
11 106561 Nickel North Coldplate 1
12 106563 Nickel South Coldplate 1
13 8533 Standoff M4/M2,5 x 2,5 Medenina 5
14 5125 OR 180x1.5 1
15 5209 OR 6x1.5 3
16 5089 OR 102x1.5 1
17 101395 OR 82x2 1
18 5159 OR 40x1.5 2
19 5099 OR 85x1.5 1
20 105163 Disc magnet 3x2 8
20
7
1
16
4
9
5
2
12
8
19
13
15
18
11
14
˝6
17
3
10

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PREPARING THE MOTHERBOARD
STEP 1
REMOVING THE STOCK COOLER
Important! Before starting, make sure to have a clean,
flat surface to work on. It is recommended to put foam
or soft material to lay the motherboard and the water
block on.
Additional five (5) screws and three (3) standoffs must be removed
in order to remove the original stock cooler above and below the
CPU placement.
After removing the screws and standoffs, carefully detach
the stock cooler and pre-applied thermal pads. EK provides
replacement thermal pads with the water block (Chapter:
CUTTING AND PLACING THERMAL PADS).
Save the screws and standoffs for later use ( Chapter: ATTACHING
THE WATER BLOCK).
STEP 1
REMOVE
CAREFULLY
DETACH THE
STOCK COOLER
CAREFULLY
DETACH THE
STOCK COOLER
REMOVE THE
PLASTIC
GUARD

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CUTTING AND PLACING THERMAL PADS
STEP 1
EK-Quantum Momentum2Pro WS W790-ACE - Full Metal water
block comes with Thermal Pads that have to be cut into smaller
pieces to cover all the regulation area (Mosfet) on the motherboard.
EK made sure to provide you with more than an adequate quantity of
Thermal Pads to complete this Step.
In case you are using processors Sapphire Rapids-
SP XCC, Sapphire Rapids-112L XCC, Sapphire
Rapids+HBM XCC or Airport Cove TTV use 2mm
thermal pads provided by EKWB. However if you are
using Sapphire Rapids-SP MCC, Sapphire Rapids-
MSWS MCC you need to first place the 1mm thermal
pads and then equally cut 2 mm thermal pads on top of
them. Before placing the 1 mm thermal pad remove the
foil from just one side. When in place carefully remove the
foil from other side as well.
Please remove the protective foil from both sides of the
thermal pads prior to installation!
Replacement thermal pads: Option 1
3x Thermal PAD G 2.0 mm - (120 x 24 mm) EAN: 3830046996794
For this step, you will need:
Scissors
STEP 1
Thermal Pad - 120 x 24 x 2.0 mm
G2
Option 1
Processors Sapphire Rapids-SP XCC, Sapphire Rapids-112L
XCC, Sapphire Rapids+HBM XCC or Airport Cove TTV

- 9 -
Replacement thermal pads: Option 2
3x Thermal PAD G 1.0 mm - (120 x 24 mm) EAN: 3830046996770
+ 3x Thermal PAD G 2.0 mm - (120 x 24 mm) EAN: 3830046996794
STEP 1
Thermal Pad – 120 x 24 x 1.0 mm + 120 x 24 x 2.0 mm
G1 + G2
Option 2
Processors Sapphire Rapids-SP MCC, Sapphire Rapids-
MSWS MCC

- 10 -
APPLYING THERMAL COMPOUND
STEP 1
Apply the enclosed EK-TIM Ectotherm thermal grease (thermal
compound) on the CPU heat spreader – IHS – as shown in the
image. The layer of the thermal compound must be thin and even in
thickness over the entire surface of the IHS.
The excessive or uneven application of thermal grease
may lead to poor performance!
STEP 1
For this step, you will need:
Thermal Grease

- 11 -
ATTACHING THE WATER BLOCK
STEP 1
Carefully place the water block onto the motherboard and align four
(4) mounting nuts with four (4) mounting screws on the motherboard.
Before placing the Water Block on the motherboard,
make sure all the Thermal Pads are placed correctly and
you applied the thermal grease! (Chapter: Cutting and
placing thermal pads).
STEP 1
PREPARING THE WATER BLOCK FOR INSTALLATION
STEP 1
Block needs to be installed without the aluminium top cover. Remove
the aluminium top cover and place it carefully on a clean surface.
STEP 1

- 12 -
STEP 2
When you mounted the water block in place push the clips to
the sides to its final position as seen in the following picture.
Take the TORX key provided by EKWB and tighten all 4 nuts in
described order.
Before placing the Water Block on the motherboard, make
sure all the Thermal Pads are placed correctly! (Chapter:
Cutting and placing thermal pads).
STEP 2
TORX KEY
1
2
4
3
MAX TORQUE:
0.6 Nm

- 13 -
STEP 3
Tighten the water block using five (5) ek provided AX1 M2.5 x 5
screws and five (5) washers. Do not use excessive force!
EK recommends using the EK-Loop Torque Screwdriver - 0.6Nm:
https://www.ekwb.com/shop/ek-loop-torque-screwdriver-0-6nm.
STEP 3
STEP 4
With the EK-Quantum Momentum2Pro WS W790-ACE - Full
Metal water block, it is mandatory to use the bottom port as the
INLET. Mixing the ports may result in poor thermal performance
of the water block.
Tighten the fittings in a clockwise direction until the gasket
underneath is compressed.
The installation of the water block is now complete.
STEP 4
For this step, you will need:
Phillips Head Screwdriver
MAX TORQUE:
0.6 Nm
1
2
4
5
3
OUTLET
INLET

- 14 -
To make sure the installation of EK components was successful, we
recommend you perform a leak test for 24 hours. When your loop
is complete and filled with coolant, connect the pump to a PSU
outside of your system. Do not connect power to any of the other
components. Turn on the PSU and let the pump run continuously.
It is normal for the coolant level to drop during this process as air
collects in the distribution plate. Inspect all parts of the loop, and
in the eventuality, that coolant leaks, fix the issue and repeat the
testing process. Ensure that all hardware is dry before the system is
powered on in order to prevent any damage.
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 WATER BLOCK 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