Entry by Carlos S. M.

BCM SQ572 Revision 1.1


CPU support

Supported sockets:
  • Socket 7
Front Side Bus speed: 50/55/60/66/75/83 MHz
Supported architectures:
  • AMD K5 5k86
  • AMD K5 SSA/5
  • AMD K6 Little Foot
  • AMD K6 Model 6
  • Cyrix 6x86 M1
  • Cyrix 6x86L M1L
  • Cyrix 6x86MX / MII MII
  • Intel Mobile Pentium P54C
  • Intel Mobile Pentium P54LM
  • Intel Mobile Pentium MMX P55LM
  • Intel Mobile Pentium MMX Tillamook
  • Intel Pentium P54C
  • Intel Pentium P54CQS
  • Intel Pentium P54CS
  • Intel Pentium MMX P55C
  • Intel Pentium MMX Tillamook
  • Intel Pentium MMX Overdrive P55C
  • Intel Pentium Overdrive P54CS
Note! Some steppings might require updated BIOS/microcode to work properly.
Supports external cache up to 512 kB

System memory

  • Type: SDRAM 66 MHz
    2x 168-pin DIMM
    ECC memory is optional
Max supported: 256.00 MB


Northbridge/MCH: Intel 430TX
Southbridge/ICH/PCH/MCP: Intel PIIX4
SuperIO: ALi M5135

Power supply

Main board power: AT
Additional power sources: 20-pin ATX
1 3-pin DC fan header

Expansion slots

4 PCI slots
3 16-bit ISA slots

Rear I/O ports

AT-style keyboard DIN connector

Internal I/O headers

2x USB 1.0 (1.1 Mb/s)
2x RS232 serial
1x parallel
IrDA header


2 IDE channels, up to 33 MB/s
Floppy connector, up to 2 drives

Circuit board

Baby AT form factor


Also known as Kaimei KM-T5-T3 aka Informtech 533T-AT aka Mentor BN533T aka BCM SQ572 aka SanLi/Superpower SM-P5TX3.




All files are checked before upload to make sure no harmful software is included. If your antivirus software gets triggered, it's most likely a false positive.


The info you find here might not be 100% correct. This is due to a couple of reasons:
  • I'm an idiot and I misread/misspelled something
  • I have a different board revision from yours
  • The production date/plant is different and they might have used slightly different components
Feel free to improve the quality and quantity of this database by contributing with your entries. Use the contact links in the footer to get in touch.

Share this board

Latest motherboards

Gigabyte GA-EP45-UD3LR

Intel P45/Intel ICH10R motherboard for LGA775 CPUs.


VIA VT82C694X/VIA VT82C686B motherboard for PGA370 CPUs.

Gigabyte GA-EX58-UD4

Intel X58/Intel ICH10R motherboard for LGA1366 CPUs.

Latest articles

So... you want to build a Windows 98 retro PC?

By realismbro285, published 2021-05-20

A few notes on the hardware database

By bobosG, published 2021-04-19