Microsoft KB Archive/50190

IBM PS/2 Model 70-E61 Specifications PSS ID Number: Q50190 Article last modified on 02-13-1992 PSS database name: W_Win3

1.04 2.03 2.10 2.11 3.00 3.00a

WINDOWS

Summary:

PS/2 Model 70-E61, Feature/Specification Comparison to AT/339
The following table compares the standard and optional features, as well as technical product specifications, of the PS/2 Model 70-E61 with the AT Model 339, which it replaced. This comparison illustrates the major improvement in the PS/2 product line over the PC product line. The more significant enhancements are highlighted by asterisks (*). Footnotes are explained at the bottom of the table. Note: Change bars (|) in the right margin indicate revisions. Last Revision: 7/27/89.

Description 8570E61 5170339 ————————– ————– ————–

Architecture: MCA AT Microprocessor 80386 80286 Clock Speed 16 MHz 8 MHz Instruction Set 32 bit 16 bit Addressing 32 Bit 24 Bit I/O Channel Width 32/16 Bit 16/8 Bit Interrupt Levels 16 16 Type Level-sensitive Edge-triggered DMA Channels 8 7 Bus Masters Supported 15 No Matched Memory Cycle Yes No Page Memory Logic Yes No BIOS Date 01/29/88 11/15/85 BIOS Model/Submodel/Revis. F8/09/00 FC/01/00

Memory: Standard (Planar) 1MB(a) 512K Maximum (Planar) 6MB(a) 512K Maximum (System) 16 MB (a) 16MB Memory Chip Speed (ns) 100/85 (b) 150 Memory Chip Type DRAM DRAM Memory Cache Controller No No Wait States: Planar 0-2 1 Adapter 0-2 1 Memory Chips Used: Planar 1MB/2 MB SIP 256K Socketed

Planar Functions: ROM Size 128K 64K ROM Shadowing Yes No Opt. Math Coprocessor 80387 80287 Coprocessor Speed 16.0 MHz 5.33 MHz Standard Graphics VGA Optional (c) Maximum Graphics 8514/A (c) VGA (c) RS232C Serial Ports 1 1 (d) UART Chip Used NS16550A NS16450 Maximum Speed (bits/sec) 19,200 9,600 FIFO Mode Enabled Yes N/A Maximum Ports Supported 8 2 Pointing Device Ports 1 Optional (c) Parallel Printer Ports 1 1 (c) Bidirectional Yes N/A CMOS Clock Yes Yes Battery Life (yrs) 5 5 Replaceable Yes Yes Diskette Drive Support Yes Yes (e) Fixed Disk Drive Support Yes (f) Yes (g)

Disk Storage: Diskette Drives Standard 1-1.44MB 1-1.2MB Optional Diskette Drives 5.25&quot; 360K Optional (h) Optional (i) 5.25&quot; 1.2 MB Optional (h) Optional (i) 3.5&quot; 720K N/A (j) Optional (k) 3.5&quot; 1.44 MB Optional (i)(l) N/A Internal Drives Supported 2 2 External Drives Supported 1 1 Maximum # Diskette Drives 3 3 Fixed Disk Drives Standard 1-60MB 1-30MB Maximum # of FD Drives 1 2 Optional FD Sizes Avail. N/A 30MB Maximum Total FD Capacity 60 MB 60MB Average Access Rate 27 ms 40 ms Controller Type ESDI ST-506 Data Transfer Rate 8.4 Mbps 5 Mbps Interleave Factor 1:1 3:1 Disk Caching Yes N/A Auto Park Yes Yes Maximum # of DD & FD 4 4 Optical Disk Drives Optional (h) Optional (h) Storage Capacity 200 MB 200MB Maximum Adapters Suppt’d 3 1 Maximum Drives Supported 6 2 Maximum Storage Capacity 1200MB 400MB Maximum FD and OD Capacity 1360MB 460MB

Tape Storage: Internal Tape Drive Suppt’d Yes (l) No Tape Capacity (MB) 80 N/A External Tape Drive Suppt’d 6157 Mdl 1,2 6157 Mdl 1 Tape Capacity (MB) 60/150 60

Expansion: Total Adapter Slots 3 8 # of Long/Short Slots 3/0 8/0 # of 8/16/32-bit Slots 0/1/2 (m) 6/2/0 (m) Non-RAM use of 32-bit Slots Yes N/A Available Slots 3 (n) 3 (n) Max. RAM w/ Avail. Slots 16 MB 16MB Max. RAM Using Only 1 Slot 16MB(o) 12.5 MB (p) | # of Slots Req’d for Max. 1 2 | # of Slots Avail after Max. 2 1 |

Keyboard: 101-Key Enhanced Keyboard Yes Yes LED Indicators on Keyboard Yes Yes Fast Keyboard Speed Setting Yes N/A Keyboard Cord Length (ft) 3.0 9.0

Security: Keylock: Locks Cover Yes Yes Locks Keyboard N/A Yes Keyboard Password Yes N/A Power-on Password Yes N/A Network Server Mode Yes N/A

Physical Factors: Dimensions: Height 5.5&quot; 6.4&quot; Width 14.1“* 21.3” Depth 16.5“* 17.3” Weight (lbs) 21.0 43.0

Environmental Factors: Power Supply (Watts) 132 192 World-wide (110/60,220/50) Yes Yes Auto-Sensing/Switching Yes Manual Amperage at: 90-137 VAC 2.7 5.0 180-265 VAC 1.4 2.5 Heat (BTUs/Hour) 751 1229 Noise Level Classification 1 3 Noise (Avg dB, Operating, 1m) 40 N/A

Operating System Support: IBM PC/DOS Yes Yes IBM Xenix N/A Yes IBM OS/2 Yes Yes IBM AIX PS/2 Yes N/A

Miscellaneous: FCC Classification B B Warranty Period 1 Year 1 Year