User Service Guide, Second Edition - HP Integrity BL60p Server Blade

Troubleshooting

Boot Process LEDs

Chapter 5

5. System Abstraction layer (SAL) code configures all platform central electronic complex (CEC) chips,

including shared memory and all responding I/O devices.

6. Firmware code and stack are relocated to shared memory, after all x4 DIMM ranks in shared memory are

configured and tested.

7. EFI shell is launched from shared memory, and cache lines are retrieved 128 bytes at a time by the

memory controller in Zx1.

8. HP-UX loader is launched using the EFI device driver.

9. HP-UX boots and starts its own device drivers.

10. HP-UX may use runtime PAL and SAL calls, and APCI features (these abstraction layers allow platform

independence).