First post, by Intel486dx33
Feel FREE to enter your Made in USA 486 Computer.
What I am bench marking
( Motherboard, cache, ram, CPU-486 any speed )
These parts must have been made in USA.
Buy American Act — Requires that a product be manufactured in the U.S. of more than 50 percent U.S. parts to be considered Made in USA for government procurement purposes.
https://www.ftc.gov/tips-advice/business-cent … de-usa-standard
Candidate #1
VEGA. VS486F-3VL Motherboard
http://www.elhvb.com/webhq/models/486vlb3/vs486f.html
AMIBIOS ID string 40-0700-006259-00101111-111192-SYMP-F
- 8-30 pin SIMM slots (1-32meg FPM DRAM)
- 3-32bit VESA Local Bus slots
- 8-16bit ISA slots
- 64k-1024k CACHE support in 8-32pin sockets + 1 TAG RAM socket
- AMI BIOS American Megatrends 486DX
- Symphony Chipset (MB-SYP243LV-V12)
- ZIF 3 CPU socket which supports these processors:
INTEL 80486SX/DX/DX2, ODP586SX
- Supports speeds of 25/33/40/50/66 MHz.
- Manufactured by: Young Micro Systems Inc. USA 1993
Candidate #2
Atrend 4GPV3 486 VESA Motherboard
http://www.elhvb.com/webhq/models/486vlb2/4gpv3.html
( A.K.A. VLB Galaxy 486V1 and MB-486-CONTAQ 012093 U4L2-0 )
( A.K.A. - Mecer B860 )
- BIOS ID string X0-0100-001117-00101111-060692-CTQ596-F
- 8-30 pin SIMM slots (1-128meg FPM DRAM)
- 2-32bit VESA Local Bus slots
- 8-16bit ISA slots
- 64-256k cache support in 8-28pin sockets + 1 TAG RAM sockets
- AMI/Award/MR Bios
- CONTAQ (German) 82C596 A Chipset
- Supports the following cpu's at 25/33/40/50/66MHz
INTEL 80486SX/80486DX/80486DX2, P24C, P24T
CYRIX CX486M6, CX486M7
AMD AM486DX/DX2
- Green PC Connector
- Manufactured by: Atrend Technology Co. Ltd. or VisionEx + CTL corp. USA 1993
Actually, This motherboard was branded by several USA companies including: Atrend, Mecer, and VisionEx.
Candidate #3
IBM PS/1 Multimedia
CPU - Intel 486dx2-50 ( original )
CPU - IBM Blue lighting ( A.K.A. Cyrix 486dx2-66 )
CPU - Intel dx4-100 Overdrive
Cache - 256kb
RAM - up to 64mb ram.
Motherboard chipset - VLSI
Video - Tseng ET4000
Hard-drive - IBM 710mb IDE
Assembled in USA
Candidate #4
Dell Optiplex 433/L
CPU - Cyrix 486dx2-66
Cache - 128kb
RAM - 16mb , -60ns
Motherboard chipset - Headland
Video - Tseng ET4000
Hard-drive - 540mb IDE
Made in USA
Candidate #6
Gateway 2000 4DX-33v
CPU - Cyrix 486dx2-66
Cache - 128kb
RAM - 16mb, -16ns
Motherboard chipset - Intel
Video - TSeng ET4000
Hard-drive - 540mb IDE
Made in USA
Candidate #7
AST Bravo LC2 4/33s
CPU - Cyrix 486dx2-66
Cache - 128kb
RAM - 16mb, 60ns
Motherboard - AST
Video - Cirrus Logic GL-5428
Hard-drive - 170mb IDE
Made in USA
Candidate #8
Mylex MVi486
CPU - Cyrix 486dx2-66
Cache 128kb
RAM - 16mb
Video - VLB
Hard-drive - 540mb IDE
Made in USA
ALL USA tests build computer specs:
486 VLB Motherboard USA
CPU - IBM Blue lighting 486dx2-66 USA
CPU - Cyrix - 486dx2-66 USA
CPU - ITS ST-486dx2-66 USA
CPU - Intel 486dx4-100 overdrive
CPU - AMD 486dx2-66
RAM - 16mb 60ns FPM 30-pin ( MT or Texas Instruments ) ( 4mb x 4 ) USA
Cache - 256kb -20ns
Hard-drive - Conner 540mb IDE USA
Controller - VLB Acculogic sIDE-4/VI ( Canada )
Video card - Tseng 1mb. ( ISA ) USA
Video card - Cirrus Logic CL GD-5426 USA
Video card - Diamond Stealth 24VL VLB S3 805 USA
Audio card - Media Vision PAS-16 USA
Network Card - 3com Etherlink III 3c509b USA
Other parts:
Case OEM and Lan Li Aluminum
CDROM - 32x
Floppy drive - 1.44