Details
The Barrow LTST-B is a direct-die CPU water block for Intel 12th and 13th Gen Core processors on LGA 1700. Your CPU must be delidded: the copper cold plate sits on the bare processor die, with the factory heat spreader removed. The block and its aluminum frame take the place of the motherboard's stock socket retention bracket.
Properties
- Socket
- Intel LGA 1700, delidded 12th and 13th Gen Core only
- Type
- Direct-die CPU water block with mounting frame
- Ports
- G1/4", 2 (IN and OUT)
- Size
- 72 x 61 x 17.85 mm
- Material
- Nickel-plated copper cold plate, brass top, aluminum frame
- Micro channels
- 0.5 mm
- Color
- Black
Direct die: delidded CPUs only
Direct-die means the cold plate touches the bare silicon die, so the heat passes straight into the coolant. Barrow lists the block for 12th and 13th Gen Core CPUs with the lid removed, and recommends liquid metal for the layer between die and cold plate. The block does not fit a processor that still has its heat spreader on.
A frame instead of the retention bracket
Barrow calls the LTST-B a direct-to-die frame water block and says it installs more simply than a usual CPU block. Barrow's install drawing shows the order: remove the stock socket retention bracket, put the backplate behind the motherboard, set the block with its frame over the socket and fasten it with four screws through the board into the backplate.
Copper, brass and aluminum
The bottom plate is nickel-plated copper with 0.5 mm micro channels, the top cover is brass and the frame is aluminum alloy. Barrow says the aluminum frame has an insulating pad built in.
Compact block
The block measures only 72 x 61 x 17.85 mm. The two G1/4" ports on top are marked IN and OUT and sit 26 mm apart. Barrow points out that IN and OUT must be connected the right way round, or cooling suffers.
Delid first
Barrow recommends that a professional removes the CPU lid and installs the block, and its warranty covers the block only, not damage from the modification. Need to delid a 13th Gen CPU first? Thermal Grizzly Intel Delid-Die-Mate For 13th & 14th Gen
Technical data
| Model | LTST-B |
| Socket | Intel LGA 1700 (direct die) |
| Compatibility | 12th and 13th Gen Core, delidded |
| Threads | G1/4" |
| Ports | 2 (IN and OUT, 26 mm apart) |
| Dimensions | 72 x 61 x 17.85 mm |
| Cold plate | Nickel-plated copper, 0.5 mm micro channels |
| Top | Brass |
| Frame | Aluminum alloy with insulating pad |
| Color | Black |
Notes
- Barrow recommends a filter in the loop before the block, so the fine micro channels do not clog.
- This block fits LGA 1700 only. It is a direct-die frame and does not fit LGA 1851. Barrow lists 12th and 13th Gen only.
- Barrow notes that it may update the look or construction of the product without notice; the product you receive is the current version.
In the box
- 1x Barrow INTEL Core 12/13 Generation Direct-Die CPU Waterblock
- 1x Backplate
- 4x Mounting screws




