ATX 24-pin to 6-pin Power Adapter Cable HP Elite 8100/8200/8300/800G1/6300

Got a standard ATX PSU you want to fit into an HP Elite 8100, 8200, 8300, 800G1 or 6300? This 30 cm adapter cable converts 24-pin ATX to the proprietary 6-pin connector on the HP board, so you can replace a dead or weak original PSU with a regular ATX unit without modifications.

Specifications

• Connector 1: standard ATX 24-pin (female)
• Connector 2: HP 6-pin + small 6-pin white header
• Material: PVC sleeve with tinned copper 18AWG wire
• Length: approx. 30 cm
• Fits: HP Elite 8100, 8200, 8300, 800G1, 6300 (SFF/MT)
• NOT compatible with HP Z230/Z220 workstations
• Weight: approx. 41 g

Symptoms of a faulty part

• PC won't power on at all despite a known-good PSU
• Fans spin briefly and stop (PSU latches off)
• Random shutdowns under load (CPU/GPU power dip)
• Burnt smell or discolouration around the 6-pin connector
• Power LED blinks but system fails to boot

Installation

🟢 Easy · Estimated time: 15 minutes · Required tools: Phillips PH1, plastic spudger.
Open the side panel, unplug the original HP power cable from both 6-pin headers on the motherboard and plug in the adapter. Connect the 24-pin from your ATX PSU to the other end.

Frequently asked questions

Does this cable work on the HP Z230 SFF?
No. The Z230/Z220 use a different pinout — use the dedicated Z230/Z220 cable instead.

Can I use any standard ATX PSU?
Yes, any modern ATX PSU with a 24-pin motherboard connector works. Make sure the wattage covers your CPU and any discrete GPU.

Do I have to plug in the small 6-pin header too?
Yes, both connectors must be attached to the HP board — otherwise the system won't boot.