LULU cooling system (cm cool pad)
hack2you's machined cooling pad for the compute module, sold on Tindie alongside the trackpad keyboard and NVMe modules.
What it takes
- Disassembly
- Purchase required
Difficulty 2 of 3 — moderate.
Details
Announced on the forum in September 2025 with a Reddit teaser, the LULU cooling system is a machined cool pad that sits between the compute module and the shell. The Tindie listing has the current details; other cooling threads point to it as a low-effort option for CM5 owners.
Links
Open at Tindie — uConsole cm cool pad- Forum threadForum
Related mods
Two layers of 0.5 mm thermal pad and a small aluminium heatsink on the CM5 SoC, held with thermal tape — about 10 °C cooler under load.
A CM4 socket protection adapter lifts the CM5 so a 0.5 mm pad reaches the back shell instead of the thick stock pad.
Replace the ~4 mm stock pad, which is sized for the A-06, with a thinner high-quality pad or paste that matches the real CM4/CM5 gap.
A ~3 mm copper block bonded to the BCM2711 so a 0.5 mm pad can bridge the remaining gap, adding thermal mass.
The adapter board's PWM fan header runs a Raspberry Pi, Waveshare or EDATEC CM5 cooler; printed back covers make the room.
A cheap magnetic gaming-phone cooler clipped to the aluminium back pulls heat out of the whole console when a CM5 is working hard.