PCChips/Hsin Tech M577
Chipset
Socket 
FSB speeds 60MHz66MHz68MHz75MHz83MHz95MHz100MHz
Form factorBaby AT (max 220 x 330 mm)
Dimensions254mm x 218mm
Cache
1MB
Max RAM size
768MB
RAM types 72-pin FPM72-pin EDOSDR UDIMM168-pin EDO UDIMM168-pin BEDO UDIMM
PSU connector
Also known as
I/O ports1x
AT Keyboard
1x
Floppy interface
1x
Gameport
2x
IDE interface
1x
IrDA
1x
PS/2 mouse
1x
Parallel
2x
Serial
2x
USB 1.x
Expansion slots2x
16-bit ISA
1x
3.3V AGP
3x
32-bit PCI
Notes
Supports HDDs larger than 128 GB and K6-2/3/+ with patched J.3 BIOS
If you have Kapton or similar tape, it is worth taping a little strip under the CPU socket tabs of this board. The soldermask is not very thick and easy to scratch with heatsink socket clamps.
It is easily possible to accidentally damage the VRM on this board by jumpering it to the P55C setting (dual voltage plane) with two mismatched voltages for Vcore and L2 cache if inserting a single voltage plane processor like the original Pentium, AMD K5 and Cyrix models.
Last updated 2025-02-20T14:36:17Z
Board info score is 9.8/10
Chips
-
Chipset part
-
Clock Synth / PLL
-
Super I/O
7 BIOS files available
Award - 7 entries
POST string
Note
Core Ver.
BIOS Ver.
Logs
POST string
03/09/1999-PM9900+ITE866-2A5LEH0AC-00
Note
patch J.3 07/19/2022 K6-2+/III+ & HDD up to 128GB (Latest)
Core version
4.51PG
BIOS version
Logs
POST string
09/14/1998-577+ITE8661-2A5LEH0AC-00
Note
Core version
4.51PG
BIOS version
Logs
POST string
07/15/1998-577+ITE8661-2A5LEH0AC-00
Note
Core version
4.51PG
BIOS version
Logs
POST string
06/08/1998-577+ITE8661-2A5LEH0AC-00
Note
Core version
4.51PG
BIOS version
Logs
POST string
03/09/1999-PM9900+ITE866-2A5LEH0AC-00
Note
Amptron PM-9900 Patched BIOS for K6 Plus and 32 GB fix
Core version
4.51PG
BIOS version
Logs
POST string
03/06/1999-M577+ITE8661-2A5LEH0AC-00
Note
M577 BIOS 03/06/1999 with K6-2+/III+ & HDD up to 128GB
Core version
4.51PG
BIOS version
Logs
POST string
03/07/1999-M577+ITE8661-2A5LEH0AC-00
Note
03/06/1999 S
Core version
4.51PG
BIOS version
Logs
13 drivers available
Name
Version
OS support
Size
Filename
Name
Version
2.6
OS support
Windows 9x
Size
1.4MB
Filename
Name
Version
4.10.0.00152
OS support
Windows 9x
Windows NT 4.0
Size
35.9MB
Filename
Name
Version
4.10.00.0152
OS support
MS-DOS
Windows 3.1x
Windows 9x
Windows NT 4.0
Size
27.2MB
Filename
Name
Version
4.10.00.0200
OS support
Windows 9x
Size
3.7MB
Filename
Name
Version
4.10.00.0164
OS support
Windows 9x
Size
3.7MB
Filename
Name
Version
4.10.00.0130
OS support
Empty
Size
863.1KB
Filename
Name
Version
1.3
OS support
Windows 9x
Size
19KB
Filename
Name
Version
1.3
OS support
Windows NT 4.0
Size
16.5KB
Filename
Name
Version
1.2
OS support
Windows 2000
Size
31.9KB
Filename
Name
Version
2.1.24
OS support
Windows 9x
Windows NT 4.0
Size
1.4MB
Filename
Name
Version
4.43V
OS support
Windows 2000
Windows 9x
Windows NT 4.0
Windows XP
Size
1.1MB
Filename
Name
Version
4.38V
OS support
Windows 2000
Windows NT 4.0
Windows XP
Size
1.1MB
Filename
Name
Version
4.35V
OS support
Windows 2000
Windows 9x
Windows XP
Size
973.7KB
Filename
4 board documents available
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
2004-08-04
File
Logs
Chip
Release date
File
Logs
Chip
Release date
1997-05-13
File
Logs
Chip
Release date
File
Logs
Family
Release date
File
Logs
Family
Release date
2000-09
File
Logs
Family
Release date
1999-12
File
Logs
Family
Release date
2000-04
File
Logs
Family
Release date
2000-11
File
Logs
Family
Release date
1997-06
File
Logs
Family
Release date
1997-08
File
Logs
Image 1 of 6 (evasive)
Image 2 of 6 (Carlos S. M.)
Image 3 of 6 (sss123)
Image 4 of 6 (Clous)
Image 5 of 6 (Microhouse)
Image 6 of 6 (Rigo "0xCats" Reddig)
Disclaimer
The info found in this page might not be entirely correct. Check out this guide to learn how you can improve it.