CSS LABORATORIES, INC.
PREFERRED 590 PCI ESP SYSTEMS, MB-5861
Processor | Pentium |
Processor Speed | 75/90/100MHz |
Chip Set | Intel |
Max. Onboard DRAM | 384MB |
Cache | 256/512KB |
BIOS | Unidentified |
Dimensions | 330mm x 218mm |
I/O Options | 32-bit PCI slots (3), floppy drive interface, IDE interface, parallel port, PS/2 mouse interface, serial ports (2), cache clot |
NPU Options | None |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | J37 | IDE interface LED | LED |
Power LED & keylock | J81 | Non green monitor connector | MON |
Auxiliary keyboard connector | J82 | 32-bit PCI slots | PC1 - PC3 |
Reset switch | J83 pins 1 & 2 | Floppy drive interface | PJ1 |
Turbo LED | J83 pins 3 & 4 | Parallel port | PJ2 |
External drive LED | J84 | Serial port 1 | PJ3 |
Front panel connector | J85 | Serial port 2 | PJ4 |
PS/2 mouse interface | J108 | IDE interface | PJ5 |
Turbo switch (not used) | JP12 | Cache slot | SL1 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | CMOS memory normal operation | JP7 | Open |
| CMOS memory clear | JP7 | Closed |
» | Cache type select write back | JP11 | Open |
| Cache type select write through | JP11 | Closed |
» | Pipeline enabled | JP13 | Closed |
| Pipeline disabled | JP13 | Open |
» | Cache parity disabled | JP14 | pins 1 & 2, 3 & 4 closed |
| Cache parity enabled | JP14 | pins 1 & 3, 2 & 4 closed |
» | Factory configured - do not alter | JP17 | N/A |
» | Factory configured - do not alter | JP18 | N/A |
» | Factory configured - do not alter | JP19 | N/A |
» | Factory configured - do not alter | JP23 | N/A |
» | On board mouse disabled | JIR12 | Open |
| On board mouse enabled | JIR12 | Closed |
» | Factory configured - do not alter | PJ8 | N/A |
Note: The location of PJ8 is unidentified. | |||
DRAM CONFIGURATION | |||
Size | Bank 0 | Bank 1 | Bank 2 |
2MB | (2) 256K x 36 | NONE | NONE |
4MB | (2) 256K x 36 | (2) 256K x 36 | NONE |
4MB | (2) 512K x 36 | NONE | NONE |
6MB | (2) 256K x 36 | (2) 512K x 36 | NONE |
8MB | (2) 512K x 36 | (2) 512K x 36 | NONE |
10MB | (2) 1M x 36 | (2) 256K x 36 | NONE |
12MB | (2) 512K x 36 | (2) 1M x 36 | NONE |
14MB | (2) 256K x 36 | (2) 512K x 36 | (2) 1M x 36 |
16MB | (2) 1M x 36 | (2) 1M x 36 | NONE |
16MB | (2) 2M x 36 | NONE | NONE |
18MB | (2) 2M x 36 | (2) 256K x 36 | NONE |
18MB | (2) 1M x 36 | (2) 1M x 36 | (2) 256K x 36 |
20MB | (2) 1M x 36 | (2) 1M x 36 | (2) 512K x 36 |
20MB | (2) 2M x 36 | (2) 512K x 36 | NONE |
22MB | (2) 2M x 36 | (2) 512K x 36 | (2) 256K x 36 |
24MB | (2) 2M x 36 | (2) 1M x 36 | NONE |
24MB | (2) 1M x 36 | (2) 1M x 36 | (2) 1M x 36 |
26MB | (2) 2M x 36 | (2) 1M x 36 | (2) 256K x 36 |
28MB | (2) 2M x 36 | (2) 1M x 36 | (2) 512K x 36 |
32MB | (2) 4M x 36 | NONE | NONE |
32MB | (2) 2M x 36 | (2) 2M x 36 | NONE |
34MB | (2) 4M x 36 | (2) 256K x 36 | NONE |
38MB | (2) 4M x 36 | (2) 256K x 36 | (2) 512K x 36 |
40MB | (2) 4M x 36 | (2) 1M x 36 | NONE |
DRAM CONFIGURATION (CON'T) | |||
Size | Bank 0 | Bank 1 | Bank 2 |
40MB | (2) 4M x 36 | (2) 512K x 36 | (2) 512K x 36 |
42MB | (2) 4M x 36 | (2) 1M x 36 | (2) 256K x 36 |
44MB | (2) 4M x 36 | (2) 1M x 36 | (2) 512K x 36 |
48MB | (2) 4M x 36 | (2) 2M x 36 | NONE |
48MB | (2) 4M x 36 | (2) 1M x 36 | (2) 1M x 36 |
50MB | (2) 4M x 36 | (2) 2M x 36 | (2) 256K x 36 |
52MB | (2) 4M x 36 | (2) 2M x 36 | (2) 512K x 36 |
56MB | (2) 4M x 36 | (2) 2M x 36 | (2) 1M x 36 |
64MB | (2) 8M x 36 | NONE | NONE |
64MB | (2) 4M x 36 | (2) 4M x 36 | NONE |
66MB | (2) 8M x 36 | (2) 256K x 36 | NONE |
66MB | (2) 4M x 36 | (2) 4M x 36 | (2) 256K x 36 |
68MB | (2) 8M x 36 | (2) 512K x 36 | NONE |
68MB | (2) 4M x 36 | (2) 4M x 36 | (2) 512K x 36 |
70MB | (2) 8M x 36 | (2) 256K x 36 | (2) 512K x 36 |
72MB | (2) 8M x 36 | (2) 512K x 36 | (2) 512K x 36 |
74MB | (2) 8M x 36 | (2) 1M x 36 | (2) 256K x 36 |
76MB | (2) 8M x 36 | (2) 512K x 36 | (2) 1M x 36 |
80MB | (2) 8M x 36 | (2) 2M x 36 | NONE |
80MB | (2) 8M x 36 | (2) 1M x 36 | (2) 1M x 36 |
82MB | (2) 8M x 36 | (2) 2M x 36 | (2) 256K x 36 |
84MB | (2) 8M x 36 | (2) 2M x 36 | (2) 512K x 36 |
88MB | (2) 8M x 36 | (2) 2M x 36 | (2) 1M x 36 |
96MB | (2) 8M x 36 | (2) 4M x 36 | NONE |
96MB | (2) 4M x 36 | (2) 4M x 36 | (2) 4M x 36 |
96MB | (2) 8M x 36 | (2) 2M x 36 | (2) 2M x 36 |
98MB | (2) 8M x 36 | (2) 4M x 36 | (2) 256K x 36 |
100MB | (2) 8M x 36 | (2) 4M x 36 | (2) 512K x 36 |
104MB | (2) 8M x 36 | (2) 4M x 36 | (2) 1M x 36 |
112MB | (2) 8M x 36 | (2) 4M x 36 | (2) 2M x 36 |
128MB | (2) 8M x 36 | (2) 4M x 36 | (2) 4M x 36 |
128MB | (2) 16M x 36 | NONE | NONE |
128MB | (2) 8M x 36 | (2) 8M x 36 | NONE |
130MB | (2) 8M x 36 | (2) 8M x 36 | (2) 256K x 36 |
130MB | (2) 16M x 36 | (2) 256K x 36 | NONE |
132MB | (2) 8M x 36 | (2) 8M x 36 | (2) 512K x 36 |
136MB | (2) 8M x 36 | (2) 8M x 36 | (2) 1M x 36 |
136MB | (2) 16M x 36 | (2) 1M x 36 | NONE |
138MB | (2) 16M x 36 | (2) 1M x 36 | (2) 256K x 36 |
140MB | (2) 16M x 36 | (2) 1M x 36 | (2) 512K x 36 |
144MB | (2) 16M x 36 | (2) 2M x 36 | NONE |
144MB | (2) 16M x 36 | (2) 1M x 36 | (2) 1M x 36 |
146MB | (2) 16M x 36 | (2) 2M x 36 | (2) 256K x 36 |
DRAM CONFIGURATION (CON'T) | |||
Size | Bank 0 | Bank 1 | Bank 2 |
148MB | (2) 16M x 36 | (2) 2M x 36 | (2) 512K x 36 |
152MB | (2) 16M x 36 | (2) 2M x 36 | (2) 1M x 36 |
160MB | (2) 16M x 36 | (2) 4M x 36 | NONE |
160MB | (2) 16M x 36 | (2) 2M x 36 | (2) 2M x 36 |
162MB | (2) 16M x 36 | (2) 4M x 36 | (2) 256K x 36 |
164MB | (2) 16M x 36 | (2) 4M x 36 | (2) 512K x 36 |
168MB | (2) 16M x 36 | (2) 4M x 36 | (2) 1M x 36 |
176MB | (2) 16M x 36 | (2) 4M x 36 | (2) 2M x 36 |
192MB | (2) 16M x 36 | (2) 8M x 36 | NONE |
192MB | (2) 16M x 36 | (2) 4M x 36 | (2) 4M x 36 |
194MB | (2) 16M x 36 | (2) 8M x 36 | (2) 256K x 36 |
196MB | (2) 16M x 36 | (2) 8M x 36 | (2) 512K x 36 |
200MB | (2) 16M x 36 | (2) 8M x 36 | (2) 1M x 36 |
208MB | (2) 16M x 36 | (2) 8M x 36 | (2) 2M x 36 |
224MB | (2) 16M x 36 | (2) 8M x 36 | (2) 4M x 36 |
256MB | (2) 16M x 36 | (2) 16M x 36 | NONE |
256MB | (2) 16M x 36 | (2) 8M x 36 | (2) 8M x 36 |
258MB | (2) 16M x 36 | (2) 16M x 36 | (2) 256K x 36 |
260MB | (2) 16M x 36 | (2) 16M x 36 | (2) 512K x 36 |
264MB | (2) 16M x 36 | (2) 16M x 36 | (2) 1M x 36 |
272MB | (2) 16M x 36 | (2) 16M x 36 | (2) 2M x 36 |
288MB | (2) 16M x 36 | (2) 16M x 36 | (2) 4M x 36 |
320MB | (2) 16M x 36 | (2) 16M x 36 | (2) 8M x 36 |
384MB | (2) 16M x 36 | (2) 16M x 36 | (2) 16M x 36 |
CACHE CONFIGURATION | |
Size | SL1 |
256KB | Installed |
512KB | Installed |
CACHE JUMPER CONFIGURATION | ||
Size | JP5 | JP6 |
None | pins 1 & 2 closed | pins 1 & 2 closed |
256KB | pins 1 & 2 closed | pins 2 & 3 closed |
512KB | pins 2 & 3 closed | pins 2 & 3 closed |
CACHE TYPE CONFIGURATION | ||||
Type | JP4 | JP15 | JP16 | |
» | Standard cache | pins 1 & 2 closed | pins 2 & 3 closed | pins 1 & 2 closed |
» | Burst cache | pins 2 & 3 closed | pins 1 & 2 closed | pins 2 & 3 closed |
CPU SPEED CONFIGURATION | |||
Speed | JP1 | JP2 | JP10 |
75MHz | pins 1 & 2 closed | pins 1 & 2 closed | Open |
90MHz | pins 2 & 3 closed | pins 2 & 3 closed | Open |
100MHz | pins 1 & 2 closed | pins 2 & 3 closed | Open |
120MHz | pins 2 & 3 closed | pins 2 & 3 closed | Closed |
133MHz | pins 1 & 2 closed | pins 2 & 3 closed | Closed |
PARALLEL PORT CONFIGURATION | |||||
Address | IRQ | P0 | P1 | PRT | |
» | Disabled | Disabled | pins 1 & 2 closed | pins 1 & 2 closed | N/A |
» | 3BCh | IRQ7 | pins 2 & 3 closed | pins 1 & 2 closed | pins 2 & 3 closed |
» | 378h | IRQ7 | pins 1 & 2 closed | pins 2 & 3 closed | pins 2 & 3 closed |
» | 278h | IRQ5 | pins 2 & 3 closed | pins 2 & 3 closed | pins 1 & 2 closed |
SERIAL PORT 1 CONFIGURATION | |||||
Address | IRQ | PJ6 | S0 | S1 | |
» | Disabled | Disabled | N/A | pins 1 & 2 closed | pins 1 & 2 closed |
» | 338hh | Disabled | N/A | pins 2 & 3 closed | pins 1 & 2 closed |
» | 2F8h | IRQ3 | pins 1 & 3 closed | pins 1 & 2 closed | pins 2 & 3 closed |
» | 3F8h | IRQ4 | pins 1 & 2 closed | pins 2 & 3 closed | pins 2 & 3 closed |
SERIAL PORT 2 CONFIGURATION | |||||
Address | IRQ | PJ8 | S2 | S3 | |
» | Disabled | Disabled | N/A | pins 1 & 2 closed | pins 1 & 2 closed |
» | 238hh | Disabled | N/A | pins 2 & 3 closed | pins 1 & 2 closed |
» | 3F8h | IRQ4 | pins 2 & 4 closed | pins 1 & 2 closed | pins 2 & 3 closed |
» | 2F8h | IRQ3 | pins 3 & 4 closed | pins 2 & 3 closed | pins 2 & 3 closed |
ON BOARD IDE CONFIGURATION | |||
Setting | IDE | PJ10 | PJ24 |
Disabled | pins 1 & 2 closed | Open | Open |
Enabled | pins 2 & 3 closed | Closed | Closed |
ON BOARD FLOPPY CONFIGURATION | |||
Setting | FDD | PJ11 | PJ12 |
Disabled | pins 1 & 2 closed | Open | Open |
Enabled | pins 2 & 3 closed | Closed | Closed |
FLASH BIOS CONFIGURATION | ||||
Setting | JP20 | JP21 | JP22 | |
» | EPROM | pins 1 & 2 closed | Open | pins 2 & 3 closed |
» | Normal mode | pins 2 & 3 closed | pins 1 & 2 closed | pins 1 & 2 closed |
» | Program mode | pins 2 & 3 closed | pins 2 & 3 closed | pins 1 & 2 closed |
» | Recovery mode | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed |
ON BOARD I/O CHIP CONFIGURATION | ||||
Chip type | PJ20 | PJ21 | PJ22 | PJ23 |
FDC37C652 | Closed | Closed | Open | Open |
FDC37C663/664 (DRATE mode) | Open | Open | pins 1 & 2 closed | Open |
FDC37C663/664 (Media ID mode) | Open | Open | pins 2 & 3 closed | Closed |