Bykski Durable 3x120mm 4U Server AIO Liquid CPU Cooler For Intel Copper Lake/Ice Lake (LGA 4189) - Continuous Usage

Bykski Durable 3x120mm 4U Server AIO Liquid CPU Cooler For Intel Copper/Ice Lake (LGA 4189) - Continuous Usage
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B-FRD4189-SR-360-V3 Pre-order
$349.99USDFree shipping, lower 48

US import duties and tariffs are included in every price.

Ships directly from our Idaho inventory. You avoid overseas sellers, processing delays, international shipping, customs hold-ups and additional fees.
Pre-order — normally stocked
Expect dispatch in about 20 business days
Latest 24 business days. Cancel any time before it ships for a full refund.
A regular catalog item — we're between shipments. Your order is filled before any stock goes back on the website.
What this works with

Check these against your build before you order. If anything here does not match what you have, ask us first — it is cheaper than a return.

  • INTEL XEON SCALABLE 3RD GEN - ANY 83XX / 63XX
Not sure? Send us your model/part number and we'll confirm it for you.
Which socket is my CPU? Find your CPU's generation and read the socket and the mounting pattern.
Not ready to pre-order?
Why buy it here
US warranty, handled in Boise
Claims are settled here, by the people who sold it to you.
Exclusive US distributor
The official US source for Bykski, so every part is genuine.
Bykski Durable 3x120mm 4U Server AIO Liquid CPU Cooler For Intel Copper/Ice Lake (LGA 4189) - Continuous Usage
Inline pump 360 radiator, 63 mm with fans Sealed, filled, bled
Server CPU AIO · Intel Copper Lake/Ice Lake LGA 4189

Sealed. Filled. Bled.

A complete liquid cooler for Intel Copper Lake/Ice Lake LGA 4189, sealed at the factory. One copper block sits on the IHS; the 360 mm radiator carries the heat out with its own three fans, in a 4U chassis or a tower. Fit the block, mount the radiator, plug in. No filling, no bleeding, no leak test.

IHS
One flat copper plate
Inline
Pump, nothing mounted
360 mm
Radiator mount needed
The 360 mm kit installed in a 4U chassis: two blocks on the sockets, the radiator and its three fans at the rear
Warm air out through the radiator
Where the heat goes

Heat leaves through the radiator, not into the rest of the machine

A stock heatsink only moves the heat the case fans push through it. This kit takes the heat off the IHS into the coolant and out through a 360 mm radiator with its own three fans. In a 4U chassis it goes across the airflow path; in a workstation tower it goes where the 360 mount is, and the socket stops depending on case airflow.

The noise moves too. Three big fans turning slowly on a radiator replace a stack of small fans screaming through a heatsink.

Built for a socket that never gets a break. A Intel Copper Lake/Ice Lake LGA 4189 at full load for hours is what this cooler is sized for.

The inline pump, exploded: housing, impeller and the two tubing connections
The part you cannot see in a photo

The pump is inline, not on the block

On most all-in-one coolers the pump is built into the block. On this kit it is inline, in the tubing between the block and the radiator, and nothing is mounted to the board. The round cap on the block is a logo, not a pump.

There is nothing to mount and nothing vibrating against the socket. Because the pump is not pressing against anything, it runs quieter than a pump built into a block, and the block stays a flat plate held at even pressure by the socket's own retention frame.

It is compact and powerful: a 40 mm can, 51 mm tall, moving 450 liters an hour, at 7000 RPM on a 4-pin PWM header.

Pump6 specs
TypeInline
Speed7000 RPM
Flow Rate450 L/h
Head7 m
Connector4-pin PWM
Dimensions40 mm diameter x 51 mm height
Everything on the loop, by the number

Radiator, fans, block

360 mm aluminum radiator, top view
63 mm
Thickness with fans
The same 360 radiator as our GPU kits: 12 water channels, aluminum, fans already mounted. More metal than the standard part, because this socket runs at full load all day.
Radiator3 specs
Dimensions396 x 120 x 38 mm
Assembly Thickness63 mm (with fans)
MaterialAluminum
120 mm PWM fan, front view
101.65 CFM
Per fan, at 3000 RPM
Three 120 mm PWM fans, built to push air through a thick radiator. They spin down to quiet when the socket is idle and ramp up only when it is working.
Fans6 specs
Dimensions120 x 120 x 25 mm
Quantity3
Speed3000 RPM
Airflow101.65 CFM
Static Pressure5.27 mmH2O
Noise Level45.6 dBA
The CPU block on its tubing, numbered mounting screws at the corners
0.35 mm
Copper between IHS and coolant
A nickel-plated T2 copper plate sits on the IHS with a 0.35 mm section over the chip, held at even pressure by the socket's own retention frame. No backplate to fit and no thermal pads: paste on the IHS, four numbered screws, done.
Block4 specs
Dimensions123.73 x 76.00 x 27.00 mm
MaterialT2 Copper
PlatingElectroless Nickel
Base Thickness0.35 mm

About this part

The Bykski B-FRD4189-SR-360-V3 is a factory-sealed server liquid CPU cooler built for Intel LGA 4189 processors. The loop arrives pre-assembled, pre-filled, and pre-bled, connecting a 360 mm radiator to a nickel-plated copper cold plate.

Sustained high-core server workloads generate heavy thermal output that saturates standard passive heatsinks. This closed loop transfers heat away from the CPU IHS directly to a 360 mm radiator, venting thermal load out of the chassis to keep system memory and storage drives cool.

In the box
  • Bykski 360 mm server liquid CPU cooler (radiator, inline pump, tubing, and CPU water block pre-assembled)
  • Three 120 mm PWM fans
  • Intel LGA 4189 mounting hardware
  • Thermal paste
If the gallery shows a parts diagram, that diagram is the source of truth for what ships.
Datasheet
Technical specifications 5 specs
General
CPU Socket CompatibilityIntel LGA 4189
Coolant
Radiator Coolant Channels12
Tubing
Tubing MaterialEPDM Braided
Tubing Assembly Span530 mm
General
Warranty1 Year
Compatibility is decided by the socket, not the CPU model

Machined for Intel Copper Lake/Ice Lake LGA 4189

Every CPU on this socket shares one mounting pattern, so the block fits the socket, not a model number. This kit ships with the mounting kit for Intel Copper Lake/Ice Lake LGA 4189 and no other. Server and workstation sockets do not share patterns: if your board's socket is not the one on this page, it is not this kit. If you are not sure which socket you have, send us the board's model before you order.

ONLY Compatible with:

  • Intel Xeon Scalable 3rd gen Any 83xx / 63xx
The CPU block, top view, with its four numbered mounting screws
Dimension drawing of the 360 mm kit laid out straight: 396 mm radiator, 63 mm with fans, 530 mm overall, and the block
The second compatibility question

Measure before you order

Two things have to fit: a 360 mm radiator with its fans, and the block on the socket. The tubing is flexible, so the pump and the hoses go wherever the chassis or the case has room. Everything here is the same on every 360 kit we sell except the block, which is sized to the socket.

01Radiator, end to end396 mm
02Radiator width120 mm
03Radiator thickness with the fans on63 mm
04Pump, inline on the tubing40 x 51 mm
05Block for this socket, length x width123.73 x 76.00 mm
06Block height above the IHS27.00 mm
07Kit laid out straight, radiator to block (reference only)530 mm
Measure the radiator mount, not the whole kit. Your chassis or case needs a 360 mm radiator position with 63 mm of depth for the radiator and fans together. The 530 mm figure is the kit stretched out straight, not a clearance you need: the hoses bend, and the pump tucks wherever there is room.
Not sure this is the one?

Sealed kit, or just the block

Same cold plate, two ways to buy it, and what happens if you keep the heatsink the board shipped with.

This kit
B-FRD4189-SR-360-V3
 The bare block
Stock cooling
As the board ships
You already haveA chassis or case with a 360 mm radiator mount. Nothing else.A working water-cooling loop: pump, radiator, reservoir, fittings, coolant.The CPU and the heatsink it came with: a passive fin stack that depends on the chassis fans to move any heat at all.
Day onePaste on the IHS, fit the block, mount the radiator, plug in. Done.Same block install, then plumb it into your loop, fill and bleed.Plug it in. In a rack with a cold aisle it runs as designed. In a tower, the socket depends on case airflow alone.
ServiceableSealed. Nothing to fill, bleed or top up.Every part, because it is your loop.Nothing to service, and nothing to improve: the heatsink can only move the heat the chassis pushes through it.
Best forServers and workstations that need it running this week.A build that already has water in it.The rack it was designed for, with the airflow it assumes. Not a tower, and not a rack running its fans slow for the noise.

What buyers said

Left by people who bought this part here. Compatibility reports are the useful ones — if you installed it, say which board.

Customer Reviews

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Questions people ask about this cooler

Answers specific to B-FRD4189-SR-360-V3. If yours isn't here, ask — we'd rather talk you out of the wrong part than sell you one.

Do I have to build a loop?
No. It arrives sealed, filled and bled. Remove the stock heatsink, paste the IHS, fit the block, mount the radiator and plug in the fans and the pump. No filling, no bleeding, no leak test, and no coolant to buy.
What is in the box for the thermal interface?
Thermal paste for the IHS, and nothing else is needed: a CPU block has no memory or power stages to pad. The mounting kit for the socket on this page is in the box.
Will it fit my CPU?
Compatibility is decided by the socket, not the CPU model. Every CPU on Intel Copper Lake/Ice Lake LGA 4189 shares one mounting pattern, and this kit ships the mounting kit for that socket and no other. Server and workstation sockets do not share patterns, so if your board has a different socket it is not this kit. Part number B-FRD4189-SR-360-V3.
Will the radiator fit my chassis?
Your chassis or case needs a 360 mm radiator position with 63 mm of depth for the radiator and fans together: a 4U, or a workstation tower with a 360 mount. The tubing is flexible, so the pump and the hoses go wherever there is room. It is the same radiator as our GPU kits.
Why is the pump not on the block?
It is inline, in the tubing between the block and the radiator. Nothing is mounted to the board and nothing vibrates against the socket, so it runs quieter than a pump built into a block. The round cap on the block is a logo, not a pump. The loop is sealed, so the pump is not a part you service.
Can I cancel my pre-order?
Yes. A pre-order can be canceled any time before it ships, for a full refund. Nothing is committed until it leaves Boise.
Is liquid always worth it?
No, and we will say so. A socket with rack airflow designed around it is fine on its heatsink. It changes when the machine runs at full load for hours, when the chassis runs its fans slow, or when the board is in a tower that was never designed to push air through a server heatsink.
Who handles the warranty?
BYKSKI.US, the exclusive US distributor, from Boise, Idaho. Claims are handled domestically rather than returned to an overseas factory.

Ask us before you order

Send your exact hardware model and we'll confirm the right part before you spend $349.99 — or tell you honestly that this isn't the one.

Returns are accepted within 30 days and are easy to start in the support center. Unopened items can be returned for store credit with no restocking fee; other returns carry a restocking fee, higher for items that have been installed or used.

Ask about compatibility