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Service Hints & Tips

Document ID: GJAN-436S3V

PS/1 - 2155 - Technical specifications, Canada models E76, G54

Applicable to: Canada

Overview:
Source: Announcement Letter A92-726

The 2155-E76 was announced October, 1992. It is the only PS/1 that had an OS/2 preload. No French model was released. The 2155-G54 was announced Feb., 1993. It had IBM DOS 5.0 and MS-Windows 3.1 preloaded.
2155-E76 - 80486DX, 8MB, 211MB HD, 5/5
2155-G54 - 80486SX, 4MB, 170MB HD, 5/5

System Planar:

Microprocessor	486DX (G54 = 486SX)
Clock Speed	33MHz (G54 = 25Mhz)
CoProcessor Socket	N/A (G54 = Yes)
Bus Type	ISA/AT
Internal Bus	32-BIT
Address Bus	32-BIT
External Bus (I/O)	16-BIT
Int Cache	8K
Ext Cache	128K (G54 = 0K)
Max Ext Cache	N/A
Cache Sockets	None
Empty Slots	4
# of Bays	5
Empty Bays	2
Parallel Port	1 25-pin bi-directional
Serial Ports	2 (16450)
Serial Port Type	9-PIN RS232D AND N-FIFO
Power-on Password	Yes
Password Reset Jumper	J8
Shadow BIOS RAM	384K

Memory:
Note: All memory is Industry Standard and socketed. No chips are soldered on the planar.

Std on Planar	8MB
Speed	=< 80NS
Type	30-PIN TIN/LEAD
Planar Max	32
Upgrade Sockets	8
Open Sockets	0
SIMM Sizes	1 and 4MB
ROM Size	128K
Parity Checked	Yes

Banked Memory
1. The system has two banks of SIMM sockets and each bank holds four SIMMs. The possible values for each bank are 1M, or 4M for a maximum total of 32M.
2. Some of the 30-pin SIMMs on the market are taller than others and may interfere with the lower card slot. The SIMM must not touch the lower adapter card.
3. No POST error code will be displayed when a SIMM of a wrong value is installed. If SIMMs are installed in groups of 3 or less a POST error code of 201 will appear.
4. Two banks of four sockets to allow max of 32MB
5. Supported SIMMs: 1MB, 4MB
6. Must be installed in groups of 4 identical SIMMs
7. One or both banks must be occupied
8. Each bank must contain SIMMs of same size and speed
9. SIMMs must be 80ns or faster
10. SIMMs must be 9 bits wide

Media:
Diskette Drives.

3.5" 1.44 MB	Yes
5.25" 1.2 MB	Yes (G54 - CD-ROM may replace 5.25 floppy)
Max DD	2

Hard Drives.
Note: BIOS will support 2 internal hard drives.

Std Hard Disk	211MB (G54 = 170MB)
Max Hard Disks	2
Controller	IDE
Access	18MS
Cache	64K
Mfg	Maxtor
Auto Park	Yes

Hard Drive specifications.

Controller	IDE
Bytes/Sector	512
Sectors/Track	38
Cylinders	682
Heads	16
RPM	3551
Trsf Rate (m bits/sec)	9
Track to Track	4.0 ms
Average	17.0 ms
Maximum	30.0 ms
Interleave	1
Recording Method	RLL

Video:

Mode	SVGA
Manufacturer	Tseng
Chip	Tseng ET4000
Max Resolution	1024 x 768
Colors at Max Res	256
Dot Pitch	.28MM
VRAM	1MB (G54 = 512KB)
VRAM Upgrade	No (G54 = Yes)
Video Disable	Yes

Disable on board Video
JP305(IRQ9) must be 'open'(disabled). This is the mfg default.

Most cards, if they follow proper BIOS interface standards, will work automatically. If problems are encountered try the following:
1. Remove JP17 to disable MEMSC16.
2. Move JP10 from pins 2-3 to pins 1-2 (disables VGA chip).

Display:

Mfg	Samsung
Size	14"
BTU/HR	223
Interlace or NI	Interlaced
Voltage	120
Volt Sensing	No
Part Number	33G4577

Preloaded Software:
o OS/2 2.0
o MS-Works for Windows v 2.0

Physical Specifications:
Note: All measurements are approximate.

System Unit
Width	405 mm
Depth	421.5 mm
Height	148.3 mm
Weight	11 kg
Display
Width	356 mm
Depth	382 mm
Height	352 mm
Weight	11.5 kg
Keyboard
Width	45 cm
Depth	11 cm
Height	4 cm
Weight	1 kg

Warranty:
o One year from date of purchase.
o One year On-Site service if within 200km of a major city.
o One year Depot Service if outside 200km range. Customer bears cost of shipment to the depot, IBM covers return cost.
o Covers hardware, software, and media.

Technical Notes:

Creating Utility Diskettes.
Note: You will need two 2MB (high density) disks, if the service pack is installed you will need three HD disks.
1. Open the Welcome Folder
2. Select Configuration Utilities
3. Double-click on 'Create Utility Disks'
4. Follow the prompts

Recreating the Welcome Folder.
To rebuild a lost Welcome Folder:

1. Open the Templates Folder
2. Drag and drop a Folder to the Desktop
3. Rename it as the Welcome Folder
4. Open the new Welcome Folder
5. Create the following folders within the Welcome Folder
Configuration Tools
Applications
Features
Tutorials
Welcome & Quick Tour
6. Open the Configuration folder
7. Create program objects for the following:
c:\OS2\INSTALL\PRELOAD\BOOTDISK.EXE
c:\OS2\INSTALL\PRELOAD\CONFIG.EXE
c:\OS2\INSTALL\PRELOAD\UNINSTAL.EXE
8. Open the Applications Folder
9. Create shadows of the Productivity and Games Folders
10. Create a program object for the Application Installation
Overview
Program Name: c:\OS2\VIEW.EXE
Parameters: INSTALL.INF INSTALLING YOUR APPLICATIONS
Working Directory: c:\OS2\INSTALL\PRELOAD
11. Create a program object for Services and Support
Program Name: c:\OS2\VIEW.EXE
Parameters: SERVICES.INF SERVICE AND SUPPORT
Working Directory: c:\OS2\INSTALL\PRELOAD
12. Create a program object for Your System
c:\OS2\APPS\SYSINFO.EXE
13. Open the Tutorials Folder
14. Create a shadow of Application Installation Overview (use the one created in the Applications Folder as the original)
15. Create program objects for the following:
c:\OS2\INSTALL\PRELOAD\DOSUSER.EXE
c:\OS2\INSTALL\PRELOAD\SYSOVER.EXE
16. Open the Welcome and Quick Tour Folder
17. Create a program object for the following:
Program Name: c:\OS2\VIEW.EXE
Parameters: QTOUR.INF WELCOME
Working Directory: c:\OS2\INSTALL\PRELOAD

Installing Dual Boot.
DBPREP is a utility which allows DOS to be installed as a dualboot function on top of OS/2; and recover to OS/2 in case something goes wrong during the DOS Install. CAUTION: The DBPREP utility should only be used if OS/2 is already installed on the C drive.
1. Download DBPREP.ZIP from the Internet at ftp://ftp.infania.net/pccbbs/os2_util/dbprep.zip and copy DBPREP.COM to the OS/2 directory
2. Copy your OS/2 CONFIG.SYS and AUTOEXEC.BAT files to a diskette for safe keeping
3. Open an OS/2 Window or Full Screen session and type ?dbprep /prep? at the prompt
4. Shutdown OS/2 and re-boot from A: with the DOS install diskette
5. Install DOS WARNING!!! Do not select any options that ask you to update DOS files on the fixed disk, or, that ask you to backup existing system. If you have Boot Manager installed, DOS may change the C partition to startable, you will need to run FDISK under OS/2 to change this to bootable.
6. Once DOS is installed, you can boot up with OS/2 by executing the command c:\os2\boot /os2 or you can boot to DOS by executing the command
c:\os2\boot /dos
7. If any problems are encountered boot with DOS and execute c:\os2\dbprep /recover. This will restore the original OS/2 system.

Installing a Printer Driver.
1. Double-click on the OS/2 System Icon
2. Double-click on the Templates Icon
3. Drag a Printer Template onto the Desktop
4. Click on Install New Printer button
5. If the printer driver was shipped with OS/2, click on Printer driver shipped with OS/2 otherwise, click on Other OS/2 printer driver
6. Click on the desired printer
7. Click on the Install button

The printer object should appear on the DeskTop. To set the new printer as the default:

1. Click once on the object with the RMB
2. Click on arrow beside Set Default
3. Click on Printer Name

Note: If the new printer does not appear on the printer list when you click on Set Default, Shutdown and re-boot; the new printer should appear in Set Default list.

Installing a Windows Printer Driver.
The preloaded printer drivers for WINOS2 are stored in the directory C:\OS2\INSTALL\PRTDRVS\PMDD_x where 'x' is the number to the corresponding Windows disk.

When installing a driver through WINOS2, if Windows asks you to insert i.e. printer disk 4, enter the following: C:\OS2\INSTALL\PRTDRVS\PMDD_4

SVGA Display Modes.
If the Service Pack is NOT installed:
Note: SVGA is only supported in OS/2 Workplace, not WIN/OS2.
1. Open the Welcome Folder
2. Select Configuration Tools
3. Select Configure
4. Select Primary Display
5. Select Other
6. Click on 'OK'
7. Click on 'OK'
8. Change Source Directory to C:\display
9. Select Install
10. Select Exit
11. Close the Welcome Folder
12. Shutdown
13. CTRL+ALT+DEL to reboot

If the Service Pack IS installed:
1. Open the Welcome Folder
2. Select Configuration Tools
3. Select Configure
4. Select Primary Display
5. Select Primary Display SVGA
6. Select Tseng SVGA
7. Click on 'OK'
8. Select desired resolution
9. Select Install
10. Insert ServicePak Display Diskette 1
11. Insert ServicePak Display Diskette 2
12. Click on 'Cancel'
13. If a message is received about Bundle Missing click on 'OK'
14. Close the Welcome Folder
15. Shutdown
16. CTRL+ALT+DEL to reboot

	Search Keywords
	Document Category	Technical Specifications
	Date Created	14-12-98
	Last Updated	22-01-99
	Revision Date
	Brand	IBM Aptiva
	Product Family	PS/1
	Machine Type	2155
	Model	E76; G54
	TypeModel
	Retain Tip (if applicable)
	Reverse Doclinks and Admin Purposes