I'm an administrator IT and also repair desktop computers & servers for many years.
We have an DL580 G7 whose warranty expired 12/31/2015. Originally supplied with Xeon E7530 and standard memory cartridges, we recently upgraded it to E7-4870 and E7 memory cartridges. Since then, we are in big trouble to ensure that it works. In order to locate the issue, I proceeded with a sequential test:
1) PROC1=A, PROC2=B, PROC3=X, PROC4=X, POST=TRUE
2) PROC1=C, PROC2=D, PROC3=X, PROC4=X, POST=TRUE
3) PROC1=A, PROC2=X, PROC3=B, PROC4=X, POST=FALSE
4) PROC1=A, PROC2=X, PROC3=X, PROC4=B, POST=TRUE
5) PROC1=A, PROC2=C, PROC3=X, PROC4=B, POST=TRUE
6) PROC1=A, PROC2=C, PROC3=D, PROC4=B, POST=FALSE
7) PROC1=E, PROC2=F, PROC3=X, PROC4=X, POST=TRUE
8) PROC1=E, PROC2=X, PROC3=F, PROC4=X, POST=TRUE
9) PROC1=E, PROC2=G, PROC3=F, PROC4=H, POST=TRUE
A,B,C,D are E7-4870 (SLC3T) 130W TDP
E,F,G,H are E7530 (SLBRJ) 105W TDP
X is empty socket
TRUE = Server post and run OS (WS2012 R2 DataCenter)
FALSE = Server hang before post (display last post code 4048 on ilo3, then post code disappear and no video, same result connected to VGA port)
Server parts:
DL580 G7 (584087-421)
Motherboard (512843-001/591196-001)
CPU Board (583367-001/591197-001)
I/O Board (512844-001/591199-001)
E7 ram cartridge (650761-001/647058-001)
Standard ram cartridge (617524-001/591198-001)
Micron 4GB ram dimm (500203-061)
4xPSU 1200W (438203-001/498152-001)
System ROM P65 10/01/2013 (reset to defaults)
iLO Firmware Version 1.85
According to Hp QuickSpecs for this particular ProLiant server, E7-4800 series are only supported in DL580 G7 CTO (643086-B2x) & Preconfigured models (6430xx-xx1/6967xx-xx1). From what I know, the main difference with a entry-level are E7 cartridges. Motherboard, CPU board and I/O board are the same part numbers.
To resume, it seems that server doesn't post when socket PROC3 is mounted with a E7-4870 (test all four 4870 on it, same result). I suspect a electrical/power issue on this socket because TDP is higher than E7530.
I plan to replace CPU board first, any advices are welcome.
Do any of you have already met such a problem ?