ekwb EK-Velocity sTR4 User manual

USER GUIDE
2nd Revision, July 29th 2021
EK-Velocity sTR4
CPU WATER BLOCK

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 important notice, disclosure, and
warranty conditions that are printed on the back of the box.
Before you start using this product, please follow these basic guidelines:
Please carefully read the manual before beginning the installation
process.
Please remove your graphics card from the computer to assure the
safest mounting process and prevent any possible damage to your
GPU and/or graphics card 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 corrosion inhibiting coolants is always recommended
for liquid cooling systems, and mandatory for nickel plated
water blocks!
Do not use pure distilled water! For best results EK recommends the
use of EK-CryoFuel coolants.
Make sure to thoroughly bleed air out of your water block, or you will
not reach optimal performance.

QUICK INSTALLATION GUIDE
- 3 -
INSTALLING THE WATER BLOCK 9
CONNECTING THE RGB LED STRIP (for full nickel version) 11
CONNECTING THE RGB LED STRIP 11
CONNECTING THE D-RGB MODELS 12
CONNECTING THE DRGB LED STRIP 12
TABLE OF CONTENT
GENERAL INFORMATION ON WATER BLOCK COMPATIBILITY 4
BOX CONTENTS 5
WATER BLOCK DIMENSIONS 6
TECHNICAL SPECIFICATIONS AND WATER BLOCK PARTS 7
SUPPORT AND SERVICE 13
SOCIAL MEDIA 13

- 4 -
GENERAL INFORMATION ON WATER BLOCK COMPATIBILITY
This CPU liquid cooling unit is pre-assembled for use with modern AMD
desktop socket type motherboards. By default (out of the box) this water
block supports the following CPU sockets:
- AMD TR4 socket
- AMD SP3 socket

- 5 -
BOX CONTENTS
EK-Velocity sTR4 CPU water block (1 pc)
Thermal grease (1 pc)

- 6 -
WATER BLOCK DIMENSIONS
85.4 mm
117.3 mm
30.8 mm
14.3 mm

- 7 -
TECHNICAL SPECIFICATIONS AND WATER BLOCK PARTS
Technical Specification:
- Dimensions (L x H x W): 117x85x31 mm
- D-RGB cable length: 500 mm
- D-RGB LED count: 6
- D-RGB connector standard 3-pin (+5V, Data, Blocked, Ground)
Position EAN Description Quantity
1100612 TOP PLATE - Acetal 1
100611 TOP PLATE - Plexi
2100618 STICKOUT - Black 1
100617 STICKOUT - White
3100620 MOUNTING BRACKET - sTR4 1
4100685 COLDPLATE - Nickel 1
5100621 JE T P L ATE 1
6100883 D-RGB LED Strip 1
78201 M3 x 10 DIN7991 Screw 4
88207 M4 x 14 7991DIN Screw 6
98616 Washer POLYAMID M4 x 0.8 mm 4
10 100158 Spring 4
11 100663 EK RGB Badge 1
12 104307
SEALING GASKET 1 – sTR4 - OR 72x2 EPDM70 1
13 101554 SEALING GASKET 2 - sTR4 1
14 9048 M2.5 x 5 AX1 Screw 2
15 100694 Thumb Screw Velocity sTR4 4
16 9033 Seegerring 3.2 DIN 6799 4
LED light is not included in all versions.
1
11
6
2
12
8
15
10
3
5
9
14
13
4
7
16

- 8 -
Technical Specification:
- Dimensions (L x H x W): 117x85x31 mm
- D-RGB cable length: 500 mm
- D-RGB LED count: 1
- D-RGB connector standard 3-pin (+5V, Data, Blocked, Ground)
Position EAN Description Quantity
1100614 TOP PLATE - Nickel 1
2100618 STICKOUT - Black 1
3100620 MOUNTING BRACKET - sTR4 1
4100685 COLDPLATE - Nickel 1
5100621 JE T P L ATE 1
6102213 LED D-RGB PANEL 1
78201 M3 x 10 DIN7991 Screw 4
88207 M4 x 14 7991DIN Screw 6
98616 Washer POLYAMID M4 x 0.8 mm 4
10 100158 Spring 4
11 100663 EK RGB Badge 1
12 104307
SEALING GASKET 1 – sTR4 - OR 72x2 EPDM70 1
13 101554 SEALING GASKET 2 - sTR4 1
14 9048 M2.5 x 5 AX1 Screw 2
15 100694 Thumb Screw Velocity sTR4 4
16 9033 Seegerring 3.2 DIN 6799 4
1
11
2
12
8
15
10
3
5
9
14
13
6
4
7
16

- 9 -
STEP 1
Cleaning the CPU: Wipe the CPU’s contact surface (by using non–
abrasive cloth or Q-tip, as shown on sample photo).
Applying thermal compound: EK recommends blob or line method
of applying the enclosed EK-TIM Ectotherm (1g) thermal compound
to the CPU heatspreader (IHS)
Applying thermal compound: On a clean IHS, apply a line of
thermal compound and spread it over the whole CPU heat spreader
(IHS) with a credit card or equivalent - see sample photo on left
Non-abrasive
Cloth
IHS
STEP 1
INSTALLING THE WATER BLOCK

- 10 -
STEP 3
Tighten the fitting barbs in clockwise direction until the gasket underneath
is compressed.
The installation of the CPU water block is now complete.
With EK-Velocity series water blocks it is mandatory to use the port that
is nearest to the center of the water block as INLET port. Mixing the ports
may result in less than ideal thermal performance of the water block.
STEP 7
FITTING RING
FITTING
BARB
INLET PORT OUTLET PORT
STEP 2
Align the water block properly on the motherboard, because the screws
are not positioned in a square pattern.
Before proceeding with the installation, it is mandatory
to remove the protective foil from the backside of the
water block.
Start fastening two mounting screws at a time, preferably in cross pattern
and do not tighten them fully until all of them are partially screwed in. Then
- using your fingers only - screw in all four mounting screws until you reach
the end of the thread.
STEP 2
MOUNTING
SCREW
COILED SPRING

- 11 -
CONNECTING THE RGB LED STRIP (for full nickel version)
RGB LED CONNECTOR
CONNECTING THE RGB LED STRIP
STEP 1
Plug the 4-pin connector from the water block and fan’s RGB LED light
to the RGB HEADER on the motherboard. The LED will work if the pin
layout on the header is as follows: +12V G R B.
Please ensure that the arrow indicated on the connector
is plugged into the +12V line as indicated on your
motherboard.
Failure to do so will damage your motherboard or LED strip.
D-RGB HEADER
RGB HEADER
STEP 1

- 12 -
CONNECTING THE DRGB LED STRIP
STEP 1
Plug the 4-pin connector from the water block’s D-RGB LED light to
the DRGB HEADER on the motherboard. The LED will work if the pin
layout on the header is as follows: +5V, Digital, empty, Ground.
Please ensure that the arrow indicated on the connector is
plugged into the +5V line as indicated on your motherboard.
If you put LED Diode to the 12V RGB HEADER you can
damage the LEDs.
Failure to do so will damage your motherboard or LED strip.
Connector is the same on D-RGB and RGB versions,
but D-RGB version has 3 cables from connector to PCB;
RGB version has 4 cables. If you connect D-RGB LED to
ordinary RGB header you can damage your motherboard
or LED strip.
D-RGB LED Connector
Connector is same on D-RGB and RGB version but D-RGB
version have 3 cables from connector to light. RGB version
have 4 cables. If you connect D-RGB led to ordinary RGB
header you will damage your motherboard or LED strip.
CONNECTING THE D-RGB MODELS
D-RGB HEADER
RGB HEADER
STEP 1

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
EKWaterBlocks
@EKWaterBlocks
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SUPPORT AND SERVICE
SOCIAL MEDIA