How to Build a Pearl (PRL) Mining Rig

June 15, 2026 · 2 min read

A single GPU is a fine way to start mining Pearl, but a dedicated multi-GPU rig is how you scale. This guide covers the parts, the assembly gotchas, and the software to get several cards earning on one pool.

Parts list

GPUs — see best GPUs for Pearl mining. You can mix models; each card mines independently.
Open-air frame — open frames keep cards cool and accessible. Avoid cramming GPUs into a sealed case.
Motherboard — a board with enough PCIe slots (mining-oriented boards offer 6–12). One x16 slot per riser is plenty.
Power supply (PSU) — size it for total GPU wattage plus ~30% headroom. Two PSUs (with an add2psu adapter) are common for big rigs. Use quality units; this is not the place to cut corners.
PCIe risers — powered riser cards connect GPUs to the board and spread them out for airflow.
CPU, RAM, storage — modest is fine: any supported CPU, 8–16 GB RAM, and a small SSD for the OS.
Cooling — extra fans, and an air-conditioned or well-ventilated room. pearlhash runs cards hard.

Assembly tips

Build outside the frame first. Get the motherboard, CPU, RAM and one GPU posting before mounting everything.
Plug every riser into its own PSU lead — never daisy-chain power on a single cable across multiple risers.
Seat risers firmly and confirm each GPU shows up in the OS before adding the next one.
Stagger the cards for airflow; heat is the number-one killer of rig stability.
Label your power cables. Future-you will be grateful when troubleshooting.

Software setup

A clean Linux install (Ubuntu works well) plus current NVIDIA drivers is the most reliable base. Then:

Install the latest NVIDIA driver and confirm all cards appear in nvidia-smi.
Download SRBMiner-MULTI (see the mining guide).
Point the whole rig at one pool with a single command — SRBMiner uses every detected GPU automatically:

./SRBMiner-MULTI \
  --algorithm pearlhash \
  --pool stratum.pullsignal.co:3360 \
  --wallet YOUR_PRL_ADDRESS \
  --worker rig01

Give each rig a unique --worker name (rig01, rig02, …) so you can track them separately on the miner dashboard.

Keep it running

Downtime is lost earnings. Two things help: a watchdog to auto-restart a crashed miner, and rig-offline alerts so you know the moment a worker drops. PullSignal sends a free phone push when any worker goes quiet — set it up on your miner page after your first share.

Tune, then connect

Undervolting and modest memory tuning can improve performance-per-watt — change one setting at a time and watch stability. When you're ready, the connect page has copy-paste commands for both pool and solo mining at a flat 1% fee.

Mining returns depend on power cost, hardware, PRL price and difficulty. Build within your budget; this isn't investment advice.