Model-Type Chart of PS/55
Model | Type | CPU | RAM | MAX | Socket | BUS | Drive interface | Video |
PS/55 started with model 5571- S. this model should be listed first. | ||||||||
5571 | -Sxx | 386DX-16 | 2MB | 2 | 32Bit x3
16Bit x5 |
ESDI | Display Adapter | |
5571 | -Txx | 386DX-20 | 4MB | 8MB | 2 | 32Bit x3
16BIt x5 |
ESDI | Display Adapter -II |
5571 | -V0x | 386DX-25 | 4MB | 8MB | 2 | 32Bit x4
16Bit x4 |
ESDI | Display Adapter -II |
5571 | -V1x | 386DX-25 | 4MB | 8MB | 2 | 32Bit x4
16Bit x4 |
Long 16bit SCSI | Displaly Adapter-II |
Desktop Models | ||||||||
5551 | -Sxx | 386DX-16 | 8MB | 3 | ESDI | Displaly Adapter-II | ||
5551 | -Txx | 386DX-20 | 8MB | 3 | ESDI | Displaly Adapter-II | ||
5551 | -V0x | 386DX-25 | 8MB | 3 | ESDI | Displaly Adapter-II | ||
5551 | -V1x | 386DX-25 | 8MB | 3 | 32Bitx2
16Bit x2 |
ESDI | Displaly Adapter-II | |
5551 | -V2x | 386DX-25 | 8MB | 3 | 32Bit x3
16Bit x2 |
ESDI | Displaly Adapter-II | |
5510 | -Txx | 386DX-25 | x3 | ESDI | VGA | |||
5510 | -Sxx | 386SX-16 | Not MCA.
These have ISA BUS.
Clasified to PS/55Z |
VGA | ||||
5510 | -Zxx | 286-12 | ||||||
5540 | -Txx | 386DX-20 | 4MB | 4 | 32Bit x2
16Bit x1 |
ESDI | ? | |
5551 | -W0x | 486SX-20 | 4MB | 32MB | 4 | 32BIt x5 | Short 16Bit SCSDI | DBCS D/A /J |
5551 | -W2X | 486DX2-40 | 4MB | 32MB | 4 | 32BIt x5 | Short 16Bit SCSDI | DBCS D/A /J |
5551 | -N0A/NAB/NAE | 486DX2-66 | 4-16MB | 32MB | 4 | 32BIt x5 | 32Bit SCSI w Cache on the planar | DBCS D/A /J |
5551 | -NXB/NMB | 486DX2-66 | 8-16MB | 32MB | 4 | 32BIt x5 | 32Bit SCSI on the planar | XGA-2 |
5551 | -Yxx | 486DX-33 | 32MB | 4 | 32BIt x5 | 32Bit SCSI on the planar | DBCS D/A /J | |
5551 | -R1D | 486DX2-66 | 4MB | 32MB | 4 | 32BIt x5 | E-IDE | DBCS D/A /NI-J |
5551 | -RXD | 486DX2-66 | 8MB | 32MB | 4 | 32BIt x5 | E-IDE | XGA-2 |
5551 | -RXE/RED/RME | 486DX2-66 | 16MB | 32MB | 4 | 32BIt x5 | EIDE + SCSI/32A | XGA-2 |
5551 | -L1C | 486BL2-66 | 4MB | 32MB | 4 | 32BIt x5 | E-IDE | DBCS D/A /NI-J |
5551 | -LXC | 486BL2-66 | 8MB | 32MB | 4 | 32BIt x5 | E-IDE | XGA-2 |
5551 | -LEC | 486BL2-66 | 8MB | 32MB | 4 | 32BIt x5 | E-IDE + SCSI 32/A | XGA-2 |
5521 | -Y1B | 486DX-33 | 4MB | 32MB | 4 | 32BIt x5 | E-IDE | DBCS D/A /NI-J |
5521 | -YSX/YWB | 486SX33 | 4MB | 32MB | 4 | 32BIt x5 | E-IDE | SVGA, CL 28 1MB |
5561 | -W0x | 486DX-25 | 4MB | 64MB | 8 | 32Bit x 6 | SCSI /16A | D/A-B II |
5561 | -W1x | 486SX-25 | 4MB | 64MB | 8 | 32Bit x 6 | SCSI /32A w Cache | D/A-B II |
5561 | -W2x | 486DX2-50 | 4 -8MB | 64MB | 8 | 32Bit x 6 | SCSI /32A w Cache | D/A-B II |
5561 | -Nxx | 486DX2-66 | 8-16MB | 64MB | 8 | 32Bit x 6 | SCSI /32A w Cache | D/A-B II |
In-a-box, Integrated Display | 5530-S/T look like 8525 but all 5530 are MCA | |||||||
5530 | -S0x | 386SX-16 | 4MB | 16Bit x3 | ESDI | Stage-I | ||
5530 | -S1x | 386SX-16 | 6MB | 16Bitx3 | ESDI | Stage-II | ||
5530 | -Txx | 386DX-20 | 6MB | 32Bit x3 | ESDI | |||
5530 | -U0x | 386SX-20 | 3 | 16Bit x4 | ESDI | XGA | ||
5530 | -UAx | 386SLC-20 | 3 | 16Bit x4 | ESDI | XGA | ||
5530 | -V0x | 386SLC-20 | 3 | 16Bit x4 | ESDI | |||
5530 | -V28/VAB/
-VX8/VXB |
486SLC2-40 | 4-8MB | 16MB | 3 | 16Bit x4 | ESDI | D/A IV
XGA-2 for -VXx |
5530 | -Wxx | 486SX-20 | 4-8MB | 32MB | 4 | 32Bit x4 | Short 16Bit SCSI | |
5530 | -W2x | 486DX2-40 | 4-8MB | 32MB | 4 | 32Bit x4 | Short 16Bit SCSI | |
5530 | -Lxx | 486BL2-66 | 4MB | 32MB | 4 | 32Bit x4 | E-IDE | DBCS D/A /NI-J |
5530 | -LXC | 486BL2-66 | 4MB | 32MB | 4 | 32Bit x4 | E-IDE | XGA-2 |
486 Tower ( Server Model ) | ||||||||
5580 | -Yxx | 486DX-33 | 4-8MB | 64MB | 8 | 32Bit x8 | Long 32Bit SCSI w/c | D/A B-II |
5580 | -W0x | 486DX-25 | 4-8MB | 64MB | 8 | 32Bit x8 | Long 32Bit SCSI w/c | D/A B-II |
5580 | -W2x | 486DX2-50 | 4-8MB | 64MB | 8 | 32Bit x8 | Long 32Bit SCSI w/c | D/A B-II |
8595 | -Jxx | 486DX-50 | 16MB | 64MB | 8 | 32Bit x8 | Long 32Bit SCSI w/c | D/A B-II |
9585 | -5Nx | 486DX2-66 | 8MB | 64MB | 8 | 32Bit x8 | F/W SCSI-2 on the planar. | XGA-2 |
9585 | -5Kx | 486DX-33 | 8MB | 256MB | 8 | 32Bit x8 | Ditto | XGA-2 |
9595 | -6Nx | 486X2-66 | 16MB | 256MB | 8 | 32Bit x8 | F/W SCSI-2 | XGA-2 |
9595 | -5PT | P-60 | 16MB | 256MB | 8 | 32Bit x8 | F/W SCSI-2 | XGA-2 |
9595 | -5QT | P-60 | 16B | 256MB | 8 | 32Bit x8 | F/W SCSI-2 | XGA-2 |
9595A | -8NT | 486DX2-66 | 16MB | 256MB | 8 | 32Bit x8 | Raid, Passplay | XGA-2 |
9595A | -8PT | P-60 | 16MB | 256MB | 8 | 32Bit x8 | Raid, Passplay | XGA-2 |
9595A | -8QT | P-66 | 16MB | 256MB | 8 | 32Bit x8 | Raid, Passplay | XGA-2 |
Model numbers in pink colored cells
are clasified to PS/55Z
For model 5538 PS/55E, Click Here
Laptops, NoteBooks, Lunch Box ...
Model | sub name | US, EMEA | CPU | RAM Max | Interface | Display | |
5523 | PS55/note | N33 ? | 80386SX-12 | 6MB | IDE, AT | 9.5" Mono VGA | |
5523 | PS/55note N23SX | N33SX | 80386SX-16 | 6MB *1 | IDE, AT | 9.5" Mono VGA | |
8551 | PS/55 note N51SX | N51SX | 80386SX-16 | 10MB | ESDI, MCA | 9.5" Mono VGA | |
8551 | PS/55 note N51SLC | ? | 386SLC-16 | 10MB | ESDI, MCA | 9.5" Mono VGA | |
5527 | PS/55note N27SX | CL57SX , 8554 | 80386SX-16 | 16MB
IC DRAM |
ESDI, MCA | 10.4" TFT, 16C | |
9552-Y | PS/55note C52 486SLC | TP700 | 486SLC-25 | 16MB
IC DRAM |
ESDI, MCA | 10.4" TFT, 256C | |
9552-J | TP720C | TP720C | 486SLC2-50 | 16MB
IC DRAM |
ESDI, MCA | 10.4" TFT, 256C | |
5535-Sxx | Poss None | 80386SX-16 | 9.5" Mono VGA | ||||
8543 | PS/55note L40SX | L40SX | 80386SX-20 | 18MB | IDE, AT | PS/55 Hi-Reso | |
5545-T | P70-386 | 80386SX-20 | MCA | Plusma, PS/55 Hi-Reso | |||
Cross reference of the models between PS/2 and PS/55
PS/2 | PS/55 | Remarks |
8570 | 5551-S/T/V | 5551 is wider than PS/2 for 1 added AVE BUS slot |
8580 | 5571 | Possibly same, except BIOS ROM |
8590/9590 | 5561 | 72pin SIMM sockets x8 are mounted on
the planar directly.
No XGA on the planar. |
8595-xKx | 5580-Yxx | All 5580 use 1S1P planar |
8595-xMx | 8595-Jxx | Same except coding. Type-3 50MHz complex. |
9585 | 9585 | Same except coding. |
9595 Type 4 | 9595-xxx | Coding is almost same between PS/2 and PS/55.
All PS/55 9595 use 2S2P planar and Type 4 complex. |