Service manual

C-34 AlphaServer GS80/160/320 Service Manual
Test
# hex
ERROR #
<15:0>
FRU(s) Component Failure Description
Local directory error line test
Error# = LMNX
X = 1 CE testing
X = 2 UCE testing
N = 1 No IRQ<0>(CE) or IRQ<4> (UCE) interrupts posted to the CPU
N = 2 Incorrect IRQ interrupts posted to the CPU
M = 0 QSD Error Summary CSR (CPUx_CE/UCE_SUM) was correct
M = 1 Invalid CPU ID in CPUx_CE_SUM or CPUx_UCE_SUM
M = 2 No QBB_NUM bits set in CPUx_CE_SUM or CPUx_UCE_SUM
M = 4 Incorrect QBB_NUM set in CPUx_CE_SUM or CPUx_UCE_SUM
M = 8 More than one QBB_NUM bit set in CPUx_CE_SUM or CPUx_UCE_SUM
L = 1 FRU1 is likely the QSD, QSD->CPU path, or CPU
L = 2 FRU1 is likely IOA, QSDy, or IOA->QSDy path (where y=CPU# of Cpu running the test)
L = 4 FRU1 is likely the DIR, WFJ, or QSA->WFJ path
FRU2 is likely the WFJ, IOA, or WFJ->IOA path
Possible Test 30 Error Numbers (decode based on above chart)
101x, 102x
211x, 212x, 221x, 222x, 241x, 242x, 281x, 282x
411x, 412x, 421x, 422x, 441x, 442x, 481x, 482x
LMNX QBBx.DIR
QBBx
QBBx
DMA
WFJ
WFJ,IOA,path
LMNX QBBx IOA,QSDy,path
LMNX QBBx
QBBx.CPUy
QSDy
30
Parameters for all error numbers:
P1: Data read (FAST read) from CPUx_CE_SUM or CPUx_UCE_SUM
P2: Address of CPUx_CE_SUM or CPUx_UCE_SUM which was read in P1
P3: Data read from IOP_QBB_ERR_SUM
P4: EV6 ISUM ipr read data