I am working to get an Intel 7120P up and running in an HP Z800 workstation with a 1110 W power supply. The board is plugged into a PCIe-x16 gen 2 slot and is connected to one of the PS' 6-pin connectors. As the PS has no 8-pin connectors, we are using a pair of IDE hard drive power cables paired together in an 8-pin adapter. All of this is in an (unfortunately) out of date Fedora Core 15 distribution running kernel 2.6.43.8-1.fc15.x86_64.
At first when booted, the board shows up via lspci as:
$ lspci -vvv
0f:00.0 Co-processor: Intel Corporation Device 225c (rev 20)
Subsystem: Intel Corporation Device 7d95
Physical Slot: 2
Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 255
...After about 6 minutes, lspci changes:
$ lspci -vvv 0f:00.0 Co-processor: Intel Corporation Device 225c (rev ff) (prog-if ff) !!! Unknown header type 7f
My first thought is that this is thermal in nature, but we have a large fan at high revs pointing down the board and an external fan blowing over the whole card. We've never gotten as far as getting the mpss service started. The power supply should also be sufficient.
Has anyone experienced this same or similar issues in the past? Does anyone have any suggestions on how to resolve it?