HP E2479A Manual

HP E2479A UPGRADE INSTALLATION PROCEDURES
MODEL 16500A-C OR 16500B-C
Tools Required:
lT10 Torx Screwdriver
lT15 Torx Screwdriver
lT25 Torx Screwdriver
lPosidrive Screwdriver
lSmall Slot Head Screwdriver
lLong Nosed Pliers
Tools Recommended:
lFrame protector (HP part # 5040-7231) to protect front frame from damage
lPadded work service to protect parts from breakage
lDouble-sided foam tape (HP part # 0460-1992) for cable management
Cables included in the HP E2479A Upgrade Kit are shown below and listed in the
HP E2479A Upgrade Kit Parts List on page 3:
10-pin
Front Panel
Cable
16500-61601
Video Control
Cable
16500-61605
Flexible Disk
Drive Cable
16500-61609
Hard Disk
Drive
Power Cable
16500-61612
Hard Disk
Drive
Data Cable
16500-61611
Flexible Disk
Drive Power
Cable
16500-61622
Video Signal
Cable
16500-61613
(10 x40)
source: /std/16500/cables.pre freelance
HP E2479A Upgrade Procedures 1

E2479A Upgrade Kit
The E2479A Upgrade Kit contains the following new assemblies, parts, and cables.
Part numbers for this kit are listed in the 16500C Upgrade Parts List table.
HP E2479A Upgrade Procedures 2

HP E2479A UPGRADE KIT PARTS LIST
16500A 16500B 16500C Description Step
Assembly/Part
Front Panel Assembly discard discard 16500-60202 New assembly for Model C 7
Front Panel 10-Pin Cable discard 16500-61601 16500-61601 Connects motherboard to front panel assembly 7
Video Control Cable discard 16500-61605 16500-61605 Connects front panel to color monitor 7
Rear Panel Assembly discard discard 16500-60203 New assembly for Model C 3
Side Fan Bracket Assembly discard discard 16500-01214 Attaches to side fan to frame 4
Flexible Disk Drive discard discard 0950-2656 New part for Model C 13
Rear Floppy Drive discard N/A N/A In Model A only
Flexible Disk Drive Cable discard 16500-61609 16500-61609 Connects to flex. disk drive and to CPU board 12
Flexible Disk Drive Power
Cable N/A N/A 16500-61622 Connects to flexible disk drive and CPU board 12
Flexible Disk Drive Shield N/A discard 16500-00606 New shield for Model C 12
Hard Disk Drive N/A discard 0950-2983 New drive for Model C 5
Hard Disk Drive Data Cable N/A 16500-61611 16500-61611 Connects to hard disk drive and to CPU board 5
Hard Disk Drive Power Cable N/A 16500-61612 16500-61612 Connects to hard disk drive and CPU board 5
CPU Board Assembly discard discard 16500-66524 New board for Model C (includes pre-installed LAN
module 7
Video Signal Cable (10x40) discard 16500-61613 16500-61613 Connects to color monitor and CPU board 8
HP E2479A Upgrade Procedures 3

Disassembly Procedure:
(See Figure 1 for Steps 1-6: Removing Outer Trim, Covers, and Panels)
1. Remove top trim from top front frame,using a small, flat blade screwdriver.
2. Remove 4 rear feet using a T10 Torx screwdriver.
3. Remove top cover using a T15 Torx screwdriver (one screw, at top of rear cover. Note that a
Posidrive screw was used on earlier units). Lift cover up and lift out.
4. Remove center screw in right side panel, using a T15 Torx (Note that a Posidrive screw was
used on earlier units).
5. Remove handle caps and handle straps from left side panel (1 screw on each end) using a T25
Torx screwdriver. Panel slides out.
6. Remove center screw in bottom panel and slide panel out.
ALL OF THE ABOVE PARTS WILL BE USED FOR REASSEMBLY
Figure 1. Removing Outer Trim, Covers, and Panels
HP E2479A Upgrade Procedures 4

(See Figure 2 for Step 7: Removing the Front Panel Assembly)
7. Remove front panel assembly including the thin metal shield. The assembly will not be
reused.
a. Remove 4 screws from top of front panel assembly with T15 Torx screwdriver.
b. Turn unit over.
c. Remove 4 screws from bottom of front panel assembly.
d. Disconnect 10-pin and Video Control Cable.
e. Remove front panel assembly.
f. Turn unit over (right side up).
Figure 2. Removing the Front Panel Assembly
HP E2479A Upgrade Procedures 5

(See Figure 3 for Step 8: Removing the Front Disk Drive and Shield)
8. Remove front disk drive and disk drive shield. Disk drive and shield will not be reused.
a. Remove disk drive shield (2 screws) with a T10 Torx screwdriver. Save screws for
reassembly.
b. Disconnect disk drive cable located at rear of disk drive.
c. Remove disk drive.
Figure 3. Removing the Front Disk Drive and Shield
HP E2479A Upgrade Procedures 6

(See Figure 4 for Step 9: Removing the Rear Fan Assembly)
9. Remove rear fan assembly (4 screws, left and right sides) using a T10 Torx screwdriver.
Disconnect (sideways) power cord to fan (may require pliers). Save screws and fan assembly
for reassembly. Will be reused.
Figure 4. Removing the Rear Fan Assembly
HP E2479A Upgrade Procedures 7

(See Figure 5 for Steps 10-11: Removing the Power Supply Rear Panel and Power
Supply)
10. Remove power supply rear panel (3 screws located by On/Off Switch), using a T10 Torx
screwdriver. Save for reassembly.
11. Remove power supply (4 screws, 2 in rear frame and 2 in bottom board of power supply)
using a T15 Torx screwdriver (slide toward rear of unit, lift up, then slide toward front of
unit). Disconnect 3-wire (5-pin) cable assembly at power supply end. Save for reassembly.
Figure 5. Removing the Power Supply Rear Panel and Power Supply
HP E2479A Upgrade Procedures 8

(See Figure 6 for Steps 12-13: Removing CPU cables and CPU Module)
12. Disconnect the following cables from the CPU board: video signal, flexible disk drive, hard
disk drive, and hard disk drive power cables (Model B only). If you have a LAN option,
remove LAN cable.
13. Remove CPU module (2 screws) using a T10 Torx screwdriver. Pull back and slide out CPU
module board. Save screws. CPU module will not be reused.
Figure 6. Removing the CPU Cables and CPU Module
HP E2479A Upgrade Procedures 9

(See Figure 7 for Step 14: Removing the 10-Pin Cable from the Motherboard)
14. Remove 10-pin cable that goes from motherboard to front panel assembly. Cable will not be
reused.
Figure 7. Removing the 10-Pin Cable from the Motherboard
HP E2479A Upgrade Procedures 10