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PCI Boards


Number
1
2
3
Note
PC #2
Has 2nd level cache problem.

Board

Printings on board upside
NX586
REFERENCE DESIGN 2
FAB REV. C1
NEXGEN INC.
COPYRIGHT 1995
ALL RIGHTS RESERVED
NX586
REFERENCE DESIGN 2
FAB REV. C1
NEXGEN INC.
COPYRIGHT 1995
ALL RIGHTS RESERVED
NX586
REFERENCE DESIGN 2
FAB REV. C1
NEXGEN INC.
COPYRIGHT 1995
ALL RIGHTS RESERVED
Printings on board downside
K2 V-0
94V-0
9531
SFL 40V0
94V-0
9532
K2 V-0
94V-0
9533
94V-0 = UL94 Flame Class
Sticker on ISA slot
FGB-MB00-009100 ALA59U00368
DEX00000282, QC OK
FGB-MB00-009100 ALA59X10716,
FGB-MB00-009400 AVC62001573
All Alaris product IDs start with "FGB-", and "MB" is for motherboard. What is "DEX"?
Stamps on board downside
TS11, QA3, UMAI 8, T2
none
ICT17, FT34, F9539
Sticker on board downside
none
MADE IN TAIWAN
SEMI-AQUEOUS
(NO CFC CLEAN)
none
Parts

U01
Quad Line Driver
(NatSemi) P53AD
DS1488N
MC1488D
XAC526
tbd
U02
Quad Line Receivers
(NatSemi) P53AB
DS1489AM
MC1489AD
XAA531
tbd
U03
(NatSemi) P53AD
DS1488M
tbd
tbd
U10, U11, U12, U13, U14,
U15, U16, U17, U18, U19
(NatSemi) P54AN
74F245
tbd
tbd
U20
HCT14A
(Motorola) XAA440
tbd
tbd
U21
(NatSemi) P53AL
74F32
tbd
tbd
U22
(NatSemi) P53AB
DM74LS05M
tbd
tbd
U23
Keyboard Controller
MEGAKEY™
©’94  AM MEG
RR L5261171
MEGA-KB-H-Q
(C)’85-’92 AM. MEGATRENDS
PR9530  45215890
MEGAKEY™
©’94  AM MEG
RR L5261006
(M)©’77
U24
Floppy Disk Controller
SMC®
FDC37C665GT
A9529-E247-AIC
6T76172-3
SMC®
FDC37C665GT
A9551-E247-AIC
6R78236-4
SMC®
FDC37C665GT
A9526-E247-AIC
6T75906-5
U25
(NatSemi) P53AB
DS1489AM
tbd
tbd
U26
(NatSemi) P53AB
DS1489AM
tbd
tbd
U27
Bus Master PCI-IDE Controller
(Symphony) SYMPHONY
SL82C105
25199020
9525  201  A2A
SYMPHONY
SL82C105
25212100
9539  201  A2A
SYMPHONY
SL82C105
25210290
9532  201  A2A
U28
Integrated Buffer and Frequency Generator
W48C60
-407G
ICS9159M
9533-07
520509
W48C60
-407G
U29
Northbridge
NexGen™
9528   B601361
VL82C501PSFC
© 1995    NxPCI
NexGen, Inc.
NexGen™
9536   B616842
VL82C501PSFC
© 1995    NxPCI
NexGen, Inc.
NexGen™
9531   B610242
VL82C501PSFC
© 1995    NxPCI
NexGen, Inc.
U30
Memory Controller
NexGen™
9528   B601352
VL82C500PSFC
© 1995    NxMC
NexGen, Inc.
NexGen™
9538   B620831
VL82C500PSFC1
© 1995    NxMC
NexGen, Inc.
NexGen™
9534   B612452
VL82C500PSFC1
© 1995    NxMC
NexGen, Inc.
U31, U33, U35, U37, U38, U39, U49, U50
Second Level Cache
EtronTech
Em51256C-12J
TZ24C1003
IS61C256AH-12JR
C1008300J6  9541
UM61256AS-12
9531S
N61132
U32
empty
empty
empty
U34
CPU
(socketed)
NexGen™
Manufactured by IBM
Nx586™ processor
with RISC86™ Microarchitecture
©® NexGen 94 95
PF100-E/E
Nx586-E  A-2DCPC-202,001
NXNX11002886-008
NexGen™
Nx586™ Processor
©® NexGen 94-95
Nx586-XXXX-4.0-CPC-202
AAP6407 P20B00XR P33004XR
NexGen™
Nx586™ Processor
©® NexGen 94-95
P100-4.5
Nx586-XXXX-4.0-CPC-202
AAO3883 P18F03XR P30013XR
downside
none
P90
E/E
tbd
Cooler/Fan
no markings
ENERTRON
PAT. PENDING
Nx586-02-15
E539
TAIWAN
ENERTRON
PAT. PENDING
Nx586-02-15
E540
TAIWAN
U36
empty
empty
empty
U40
74HCT00D
V4R15BME
(Philips) CRn9522 D
tbd
tbd
U41
(NatSemi) P53AB
DM74LS05M
tbd
tbd
U42
BIOS EEPROM
(socketed)
tbd
SST PH29EE010
150-3CF
952333-E
SST PH29EE010
150-3CF
953421-E
BIOS sticker
AMIBIOS
AMERICAN MEGATRENDS
NexGen Nx586™ PCI BIOS
AA0082491 © ‘86-’95
AMIBIOS
AMERICAN MEGATRENDS
NexGen Nx586™ PCI BIOS
AA0051450 © ‘86-’95
AMIBIOS
AMERICAN MEGATRENDS
NexGen Nx586™ PCI BIOS
AA0134096 © ‘86-’95
U43
Southbridge
intel
PCIset
S82378ZB
S Z905
17ILRW9517
(Intel) AB8242.1
© ’92  Taiwan
intel
PCIset
S82378ZB
S Z905
27ILC4 9527
(Intel) AC1918.1
© ’92  Taiwan
intel
PCIset
S82378ZB
S Z905
19ILB5 9529
(Intel) AB8924.1
© ’92  Taiwan
U44
(NatSemi) P54AN
74F245
tbd
tbd
U45
Realtime Clock
(socketed)
(Clock) DALLAS DS12887A
REAL TIME
9530A2 064582
DALLAS DS12887A
REAL TIME
9544A2 069436
DALLAS DS12887A
REAL TIME
9531A2 064988
U46
(NatSemi) P53AJ
74F138
tbd
tbd
U47
(NatSemi) P53AY
74F08
tbd
tbd
U48
Dual Operational Amplifier
LT519
1431
LT532
1431
tbd
Q2
SMP50N06
-25 (Delta)
T524BS
IRFZ44
IR 9524
4Q   3U
tbd
Jumper

JP01
2-3
2-3
2-3
JP02
OUT
OUT
OUT
JP03
OUT
OUT
OUT
JP04
IN
IN
IN
JP05
IN
IN
IN
JP06
2-3
2-3
2-3
JP07
1-2
1-2
1-2
JP08
1-2
1-2
1-2
JP09
OUT
IN
OUT
JP10
IN
OUT
IN
JP11
OUT
OUT
OUT
JP12
IN
IN
IN
JP13
open
open
open
JP14
1-2
2-3
2-3
JP15
OUT
OUT
OUT
JP16
OUT
OUT
OUT
JP17
OUT
OUT
OUT
JP18
2-3
2-3
2-3
JP19
open
open
open
JP20
OUT
OUT
OUT
JP21
open
open
open
JP22
2R3
1.6 KOhm
2R3
tbd
2R3
1.6 KOhm
J01
open
open
open
J03
OUT
OUT
OUT
J07
horizontal
horizontal horizontal

Legend
tbd
to be done
(NatSemi)
the National Semiconductor Logo: N
(Symphony)
the Symphony Labs Logo: a clef
(Motorola)
the Motorola Logo: an M in a circle
(Intel)
the Intel Logo: i
(Clock)
logo: an old-style alarm-clock
(Delta)
the uppercase greek letter delta
1-2
jumper is between pins 1 and 2
2R3
resistor is between hole 2 and 3
IN
jumper is inserted
OUT
jumper is removed
open
only pads on the board, no pins, open
close
only pads on the board, no pins, closed


Author: Herbert Oppmann (email adress) updated: 2022-11-13