Operation
Compaq ES40CSLP Rackmount System Installation/User/Service Guide 3–3
The primary CPU (usually CPU0) initializes and tests the B-cache and memory, then
loads the flash SROM code to the next CPU. That CPU then initializes the EV6 (21264
chip) and marks itself as the secondary CPU. Once the primary CPU sees the secondary,
it loads the flash SROM code to the next CPU until all remaining CPUs are loaded.
The Flash SROM performs various B-cache tests. For example, the ECC data test verifies
the detection logic for single- and double-bit errors.
The primary CPU initiates all memory tests. The memory is tested for address and data
errors for the first 32 MB of memory. It also initializes all of the “sized” memory in the
system.
If a memory failure occurs, an error is reported. An untested memory array is assigned to
address 0 and the failed memory array is de-assigned. The memory tests are re-run on the
first 32 MB of memory. If all memory fails, the “No Memory Available” message is
reported and the system halts.
If all memory passes, the primary CPU loads the SRM console and transfers control to
it.
Table 3-1 SROM Power-Up Status Messages
Status
Code
Full SROM Message
Corresponding
OCP Message
DF
SROM program starting
Power on
DE
Init and test PCI bus
PCI Test
DD
Bcache data tests in progress
BC Data
DC
Bcache address test in progress
BC Addr
DB
CPU parity and ECC error detection in progress
Par/ECC
DA
Bcache ECC data tests in progress
BC ECC
D8
Bcache TAG lines tests in progress
BC Tag
D7
Reloading SROM
Reload
D5
Memory sizing in progress
Size Mem
D4
Memory configuration in progress
Cfg Mem
D3
Memory data test in progress
Mem Data
D2
Memory address test in progress
Mem Addr
D1
Memory pattern test in progress
Mem Patt
D0
Memory thrashing test in progress
Mem thra
CF
Memory initialization
Mem Init
CD
Loading console
Load ROM
CB
Code execution complete (transfer control)
Jump to Console.
C5
Loading program from floppy
Load Flp
93
Starting secondary on CPU #3
RelCPU 3
92
Starting secondary on CPU #2
RelCPU 2
91
Starting secondary on CPU #1
RelCPU 1
90
Starting secondary on CPU #0
RelCPU 0
Содержание ES40CSLP
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