MICRONICS MOTHERBOARD IDENTIFICATION AND CONFIGURATION INFORMATION

06/06/1998

This is an independent and UNOFFICIAL Micronics support page and is not an endorsement of products manufactured by Micronics Computers Inc. This page originated back in '95 as a source of information for 386/486 Micronics and Gateway2000 products before Micronics had a WEB presence. If you don't find your info here check their site especially for new product information as I will not be adding any new Micronics products to this page.

Micronics Home Page Official Micronics Web Site

Contact Micronics List of domestic and International telephone #'s and mailing addresses.

Click here to E-mail me.

This document contains information downloaded from the Micronics BBS regarding motherboard identification and configuration information. Older Micronics motherboards may not have a part number stenciled on the board for identification. Use the identification characteristics in the first paragraph of the description to ID the board.

Micronics uses a part number scheme of 09-xxxxx-yy for their motherboards.

09-xxxxx is their part number

yy is the shipping configuration of the board.

(IE a MB with an AT keyboard conn and a MB with a PS2 keyboard conn may have the

same part number and a different -yy configuration number)

08-xxxxx is the artwork number of the PCB

 

Micronics recommendation for the mixing of GOLD/TIN SIMM's and sockets

Micronics recommends matching GOLD SIMMS with gold sockets and TIN SIMMS with silver sockets for long term reliability of their system boards.

Click here to go to AMP Inc's technical paper on Tin vs Gold contacts. This a VERY technical paper but does a good job of describing just what causes the problem.

 

Micronics SIMM size dependencies

Not all Micronics MB's support 2MB, 8MB and 32MB SIMM's. These SIMM types are "dual density" SIMM's that are effectively two 1MB, 4MB or 16MB banks mounted on one SIMM PCB. Memory controllers MUST support the dual RAS/CAS addressing required by dual density SIMM's in order to handle them correctly. Check the memory matrix in the manual for the SIMM sizes supported by your motherboard. If 2/8/32 MB SIMM's are not listed in the matrix the MB does not support dual RAS/CAS and the SIMM will only be sized as 1/2 their capacity if detected at all. A rule of thumb is that a dual density SIMM will have chips mounted on both sides of the SIMM PCB.

 

Processor UPGRADE Report

I have requested reports from users who have successfully upgraded Micronics MB's to DX4, POD63/83, 5x86 CPU's. When these reports are received the appropriate MB manual has been updated. Any special considerations such as BIOS changes, CMOS settings, voltage regulator requirement are included when they are reported. This report appears on the first page of the manual.

If you have successfully upgraded a Micronics MB to a newer CPU please Email me with the information and I will add it to the appropriate manual.

Micronics 486 MB upgrade FAQ
Upgrade processor report for Micronics/Gateway2000 motherboards compiled by Ben Myers at Spirit of Performance.

Ben's document on using 5V and 3V processors in Micronics' MB's.

Click here to Email Ben for upgrade processors, cache chips or new Micronics motherboards.

Email Dennis Lou for info on upgrading the LX30WB motherboard for DX4 and AMD 5x86-133 CPU's.

 

BIOS upgrade download site

This is C/net's download site for BIOS upgrades. Many GW2k BIOS's here, laptops, 486, Pentium as well as device drivers.

www.download.com.

Gateway 2000's download site for hardware drivers and BIOS DL's.

http://www.gw2k.com/ftp/0.htm

 

Micronics/Diamond Multimedia FTP site.

This is Micronics/Diamond Multimedia's FTP site. Snoop around here for manuals and assorted documentation for "legacy" Micronics and Diamond Multimedia products, Motherboards, Memory cards, Video cards, MAC etc. Also some new product info as well.

http://www.diamondmm.com/default.asp?menu=support&submenu=choose&family_name=Legacy_Motherboards&subitem=contact_info/micronic/ (USA site)

http://www.diamondmm.com/default.asp?menu=support&submenu=choose&family_name=Legacy_Motherboards&subitem=contact_info (German site)

ftp://ftp.chips.com.au/PUB/DRIVERS/DIAMONDMM/ (Australian site)

 

EISA motherboard configuration utility information

Micronics does not make their EISA configuration utility available for download on their web site. However Gateway2000 does have the utility available for DL from their web site. Click here for instructions on making your own EISA configuration diskette.

Here is a link to the Micronics EISA configuration utilities on Micron's tech support DL page.

Here is a link to the AMI EISA configuration utility dated 07/14/97 from Expert computer's page.

NOTE! I am not aware of any differences between Micron, Gateway2000, and OEM Micronics MB's but be aware that there could be some subtle variations in BIOS's or MB functions. Use these EISA configuration utilities at your own risk as I am just the channeler of this information..

 

Gateway2000 Motherboard info

GATEWAY2000 primarily used Micronics system boards in their 386 and 486 systems except for the ALL-IN-ONE low profile systems which used an Anigma motherboard. This document covers their product line from the later 386-25/33 thru the 80486 product line. Confirm the part number stenciled on the board to be sure you are using the correct manual. The Gateway2000 part number such as DXLB486 was a "pseudo" number created by Gateway2000 for their assembly process and it is not a Micronics part number.

ANOTHER CAUTION!! The JX30 MB family (JX30, JX30G, JX30GC, JX30WB) used by Gateway2000 began with the standard AT keyboard and serial mouse. GW2K then modified their caseworks and motherboard to accommodate a PS/2 mouse and PS/2 keyboard at some point in 1994(?). The standard Micronics JX30xx series motherboards use an AT DIN Style keyboard and a serial port for the mouse. The Micronics OEM board and GW2K board are not completely interchangeable. If your system has a PS/2 kyb/mou, the standard Micronics JX30xx series MB will not fit your caseworks. (SEE -yy shipping configuration info above)

Gateway 2000 Anigma MB FAQ. These are the Anigma MB's used in many of the GW2k low profile systems This FAQ is the intellectual property of Ben Myers of Spirit of Performance

Micronics Motherboard Manuals

Motherboard description

Micronics part number

Micronics Memory Card manuals (ALL models)

This document contains jumper and configuration information for the Micronics add-on memory PCB's used in the 386/486 product lines.

80386-16 full size w/memory card

09-00003-xx

80386-20 full size w/memory card

09-00003-xx

80386-16 baby size w/memory card

09-00001-xx

80386-33 full size cache ASIC

N/A

80386SX-25 with cache, C&T chipset

N/A

80386-20 Weitek MB

09-00008-xx

80386-I cache motherboard

09-00010-xx and 09-00021-xx

80486-25 ISA full size

09-00025-xx

80386-25/33 cache baby size

09-00035-xx for 25MHZ and 09-00066-xx for 33MHZ

386 ASIC cache

09-00050-xx

80486-33 ASIC ISA full size

09-00054-xx

80386-25 baby size 0KB cache

09-00065-xx

386 SMT ASIC cache

09-00066-xx

80486-33 baby size Gemini

09-00081-xx and 09-00135-xx

80386-33 baby size (Gemini)

09-00086-xx

80486DX-25/33 EISA full size

09-00090-xx

80486SX-25 baby size Gemini

09-00093-xx

80386SX-20/25 no cache baby size

09-00105-xx

80486-33,50,DX2/66 EISA full size

09-00117-xx

80486-50 ISA baby size (Gemini)

09-00125-xx

80386-SX Chips and Technolgies .exe file

09-00127-xx

80486DX-50 EISA full size

09-00128-xx

80486DX2-50 baby size Gemini

09-00135-xx

80386SX-25 cache. Baby size

09-00140-xx

80486xx VL baby size Gemini

09-00144-xx

80486SX-25 baby size Gemini

09-00145-xx

80486SX Gemini (upgradeable) .exe file

09-00154-xx

80486xx EISA baby size

09-00159-xx

80486xx XCP ISA Mini size

09-00164-xx

80486xx VL MX30VL

09-00165-xx

80486xx 486V VL bus Baby AT

09-00169-xx

Mpower3 LPX form factor

09-00172-xx

80486xx EISA full size

09-00173-xx

80486 EISA 3 VLB Word for Windows format

09-00181-xx

80486xx JX30 VL baby size

09-00183-xx

M5PI manual in Adobe Acrobat format

09-00185-xx

80486xx VL JX30G

09-00189-xx

486-M4P

09-00190-xx

80486xx VL JX30WB

09-00192-xx

M5PE

09-00199-xx

Mpower4 LPX form factor

09-00202-xx

80486xx VL JX30GC

09-00203-xx

M54PI

09-00208-xx

M4Pi manual in Adobe Acrobat format

09-00209-xx

M54Pe manual in Adobe Acrobat format

09-00210-00 thru 116

M54E2 manual in Adobe Acrobat format

09-00210-118

M54SI PCI Pent 75,90,100,120,133

09-00211-xx

M4PE

09-00213-xx

LPX MP54-1 manual Zipped Adobe Acrobat format

09-00216-xx

LPX MP54-2 manual Zipped Adobe Acrobat format

09-00???-xx

M4Pe manual in Adobe Acrobat format

09-00218-xx

LX30WB manual in Adobe Acrobat format

09-00220-xx

LPX30(WB)

09-00226-xx

Mpower4 Plus LPX form factor

09-00229-xx

80486xx LPM30 low profile (LPX)

09-00232-xx

M54HI PCI Pent 75,90,100,120,133

09-00236-xx

M54HI Plus manual in Adobe Acrobat format

09-00253-xx

M6Mi manual in Adobe Acrobat format

09-00264-xx

M6Pi manual in Adobe Acrobat format

09-00257-xx

M55Hi Plus manual in Adobe acrobat format

09-00273-xx

D5 Cub manual Adobe Acrobat format

09-00287-xx