PCChips M577
chipChipset
cpuCPU socket
Socket 7 (PGA321)
speedFSB speeds
60MHz66MHz68MHz75MHz83MHz95MHz100MHz
moboForm factor
Baby AT (max 220 x 330 mm)
dimDimensions
254mm x 218mm
chipCache
1MB
ramMax RAM size
768MB
ramRAM types
72-pin FPM72-pin EDOSDR UDIMM168-pin EDO UDIMM168-pin BEDO UDIMM
pwrPSU connector
ATX 1.x (20-pin ATX) AT (P8-P9)
connI/O ports
1x 
AT Keyboard
1x 
Floppy interface
1x 
Gameport
2x 
IDE interface
1x 
IrDA
1x 
PS/2 mouse
1x 
Parallel
2x 
Serial
2x 
USB 1.x
cardExpansion slots
2x 
16-bit ISA
1x 
3.3V AGP
3x 
32-bit PCI

Also known as:

  • Amptron PM-9900
  • Protac MB 5770
  • Aristo AM-577
  • EURONE EM-5577S
  • EURONE EM-5577
  • Minstaple PM 577

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 2024-04-18T17:09:24Z
Board info score is 9.8/10
7 files available

Vendor: 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
drv 1 known good driver available
Name
Version
OS support
Size
Filename
Name
Version
4.43V
OS support
Windows 2000 Windows 9x Windows NT 4.0 Windows XP
Size
1.1MB
Filename
Name
Version
OS support
Size
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
Name
Version
4.10.0.00152
OS support
Windows 9x Windows NT 4.0
Size
35.9MB
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
doc 4 board documents available
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