HP 330 Service Information Manual

IF>>ower-Up Sequence Explained
1. Turn on test LEDs.
2. Test CPU.
3. Set up data structures.
4. Search for any Boot Extension ROMs and call any valid ones.
5. Determine CPU type (MC68010 or MC68020).
6. Initialize and test processor board timer.
7. Look for display RAM.
8. Reset all
I/O.
9. Initialize the video board circuits.
10. Checksum the Boot ROM.
11. Display CPU chip type.
12. Initialize keyboard electronics.
13. Drop
interrupt level.
14. If HP 98546A Compatibility Display Interface is found, initialize and clear graphics.
15. Test
HP-IB on processor board, if present.
16.
Find any Direct Memory Access (DMA).
17. Find accessory I/O cards. Report all found. Test the following:
a.
HP 98629 SRM Controller.
b. HP 98527 Color Output Card.
c.
HP 98624 (TI9914 HP-IB).
d. HP 98626 RS-232 Interface Card.
e. HP 98644 RS-232 Interface Card.
f. HP 98642 4-port Multiplexed RS-232 Card.
The HP 98628 RS-232 Interface Card, if found, will be reported but not tested.
18.
Checksum any ROMs in ROM address range and report any problems.
19. Test remaining RAM
and set up bottorn of memory.
20. Report any mernory failures and the amount of memory found.
21. Initialize
the bottom of memory (Boot ROM scratch pad).
22.
Output final LED value.
Boot
ROM Functions 123

HP 330 Specifications

General

Storage	500 GB HDD (7200 rpm)
Operating System	Windows 7 Professional 64-bit
Graphics	Intel HD Graphics
Dimensions	14.88 x 6.89 x 15.02 inches
Processors	Intel Celeron, Pentium, Core i3/i5/i7
Processor	Intel Celeron
USB Ports	4x USB 2.0
Optical Drive	DVD-Writer
Network	Gigabit Ethernet