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NexGen Chipset Markings

NxVL

VESA Local Bus (VLB) System Controller

NxVL

The first 4 digits seem to be year and week of manufacturing. The "Y" number could be the batch. Both are increasing in sync.
The letter F with the lines above and below is the logo of Fujitsu Microelectronics, Inc.

Always constant and therefore not listed in the table below:

Above.. Below.. Right of heatspreader Back
NexGen NxVL™ System Logic <date> <batch>
O11
JAPAN F

Date Batch
9409 PE01
9423 Y00
9424 Y01
9424 Y02
9424 Y03
9425 Y04
9425 Y05
9427 Y06
9431 Y07
9431 Y10
9431 Y11
9441 Y13
9442 Y14
9442 Y15
9442 Y16
9442 Y17
9442 Y18
9442 Y19
9443 Y20
9445 Y22
9445 Y23
9446 Y25
9446 Y26
9446 Y27
9447 Y30
9447 Y31
9447 Y33
9448 Y36
9448 Y38
9449 Y39
9449 Y40
9449 Y44
9450 Y46
9450 Y49
9451 Y51
9452 Y54
9501 Y56
9503 Y60
9508 Y71

NxMC (VL82C500PSFC)

Peripheral Component Interconnect (PCI) Memory Controller

NxMC

The first 4 digits seem to be year and week of manufacturing.
VL is the prefix of VLSI Technology, Inc. (VTI). Effective June 2, 1999, VLSI was fully acquired by Philips Semiconductors.

Top
NexGen
9520   B576212
VL82C500PSFC
(C) 1995      NxMC
NexGen, Inc.
NexGen
9528   B601351
VL82C500PSFC
(C) 1995      NxMC
NexGen, Inc.
NexGen
9528   B601352
VL82C500PSFC
(C) 1995      NxMC
NexGen, Inc.
NexGen
9534   B612452
VL82C500PSFC1
(C) 1995      NxMC
NexGen, Inc.
NexGen
9534   B614701
VL82C500PSFC
(C) 1995      NxMC
NexGen, Inc.
NexGen
9538   B618961
VL82C500PSFC
(C) 1995      NxMC
NexGen, Inc.
NexGen
9538   B620831
VL82C500PSFC1
(C) 1995      NxMC
NexGen, Inc.

NxPCI (VL82C501PSFC)

Peripheral Component Interconnect (PCI) System Controller

NxPCI

The first 4 digits seem to be year and week of manufacturing.
VL is the prefix of VLSI Technology, Inc. (VTI). Effective June 2, 1999, VLSI was fully acquired by Philips Semiconductors.

Top
NexGen
9528   B601361
VL82C501PSFC
(C) 1995      NxPCI
NexGen, Inc.
NexGen
9528   B600391
VL82C501PSFC
(C) 1995      NxPCI
NexGen, Inc.
NexGen
9531   B610242
VL82C501PSFC
(C) 1995      NxPCI
NexGen, Inc.
NexGen
9532   B612501
VL82C501PSFC
(C) 1995      NxPCI
NexGen, Inc.
NexGen
9536   B616842
VL82C501PSFC
(C) 1995      NxPCI
NexGen, Inc.
NexGen
9537   B620872
VL82C501PSFC
(C) 1995      NxPCI
NexGen, Inc.

Legend
no marking
marking unknown
? letter or digit unreadable


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