PCChips/Hsin Tech M915i
Logs
chipChipset
cpuSocket
Socket 3 (PGA237)
speedFSB speeds
25MHz33MHz40MHz50MHz
moboForm factor
Baby AT (max 220 x 330 mm)
dimDimensions
330mm x 218mm
chipCache
64KB128KB256KB512KB1MB
ramMax RAM size
256MB
ramRAM type
72-pin FPM
pwrPSU connector
AT (6-pin P8 + 6-pin P9)
tag Also known as
connI/O ports
1x 
AT Keyboard
2x 
IDE interface
cardExpansion slots
4x 
16-bit ISA
4x 
32-bit PCI
2x 
32-bit VLB
wrench Known issues
  • Fake cache

The motherboard may include a non-functional or counterfeit SRAM cache, which can adversely affect performance. Signs of fake cache often include soldered DIP-chips and no jumpers to set the chache size. Cache functionality can usually be restored by installing proper chips, jumpers and a BIOS update/mod.

notes Notes

The jumper settings to set the amount of cache on the v1.x M919 motherboards turns out to be identical to the cache jumper settings for the PCChips M915i. The jumper banks are designated as JP9, then 10-13 on the M915i, which correspond to JP8 and then JP9A-D on the M919 v1.x.

Unofficial homepage for the 80486 VIP board

Last updated 2025-07-30T18:01:03Z
Board info score is 9.6/10
chip Chips
-> Chipset part
UMC UM8881F UMC UM8886BF
-> Clock Synth / PLL
UMC UM9515
-> Real-Time Clock
(multiple brand) 6818A
cpufam CPU family support
bios 3 BIOS files available

vendor Award - 1 entry

POST string
Note
Core Ver.
BIOS Ver.
Logs
POST string
Note
Core version
BIOS version
Logs

vendor AMI - 3 entries

POST string
Note
Core Ver.
BIOS Ver.
Logs
POST string
41-P400-001437-00101111-101094-486AVIP
Note
Core version
101094
BIOS version
Logs
POST string
41-P400-001437-00101111-101094-486AVIP
Note
Core version
101094
BIOS version
Logs
POST string
41-P100-000000-00101111-072594-VIP486-H
Note
Core version
072594
BIOS version
Logs
drv 2 drivers available
Name
Version
OS support
Arch
Size
Filename
Name
Version
3.2
OS support
MS-DOS OS/2 2.x
Arch
Size
275.2KB
Filename
Name
Version
3.3
OS support
OS/2 Warp 3.x Windows 3.1x
Arch
Size
Empty
Filename
doc 4 board documents available
Release date
File
Logs
Release date
File
Logs
Release date
File
Logs
Release date
File
Logs
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
1984
File
Logs
Chip
Release date
1994-10
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Family
Release date
File
Logs
Family
Release date
1996-03
File
Logs
Family
Release date
1995-07
File
Logs
Family
Release date
1995-10
File
Logs
Family
Release date
1995-12
File
Logs
Family
Release date
1989-04
File
Logs
Family
Release date
1990
File
Logs
Family
Release date
1992-10
File
Logs
Family
Release date
1992-02
File
Logs
image1 Image 1 of 7 (Microhouse)
image2 Image 2 of 7
image3 Image 3 of 7 (Horun)
image4 Image 4 of 7 (thrill_fr)
image5 Image 5 of 7 (ThisOldTech)
image6 Image 6 of 7 (old_pc_parts)
image7 Image 7 of 7 (ThisOldTech)

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