The P80DB1L card allows you to display motherboard debug information, even if there’s no such display on your motherboard. It uses an Altera/Intel Max V CPLD which decodes data sent to port 80 on the LPC bus, which is accessible on many motherboards using the TPM header. Pinouts of the card, cables and standard headers are available below.

P80DB1L pinout

P80DB1L LPC pinout

 

Pin# Function Wire color
1 LAD0 Gray
2 3.3V Red
3 LAD1 Purple
4 Not connected
5 LAD2 White
6 LPC Clock Green
7 LAD3 Blue
8 Ground Black
9 LPC Frame# Yellow
10 Not connected

Motherboard pinouts

Cable type A/G (2×5 2.0mm) M (2×7 2.0mm) AR (2×7 2.0mm)
Motherboard header 2×5 2.0mm (Asus LPC)
2×6 2.0mm (Gigabyte TPM)
2×7 2.0mm (Asus TPM)
2×7 2.0mm (MSI JTPM) 2×9 2.0mm (Asrock TPMS)
Header pinout
Asus TPM pinout
Asus TPM-header pinout. Asus LPC-header is the same but with pins 11-14 removed.

Gigabyte TPM-header pinout
Gigabyte TPM-header pinout

MSI JTPM-header pinout
MSI JTPM-header pinout

Asrock TPMS-header pinout
Asrock TPMS-header pinout
Header picture
Asus TPM-header
Asus TPM-header
Asus LPC-header
Asus LPC-header

Gigabyte TPM-header
Gigabyte TPM-header

MSI JTPM-header
MSI JTPM-header

Asrock TPMS-header
Asrock TPMS-header

 

Cable pinouts

All cables have a Type-A/G connector for the P80DB1L card and a second connector fitting the various motherboard headers.

 

Type-A/G 2×5 2.0mm (Asus/Gigabyte)

Pin# Function Wire color
1 LAD0 Gray
2 3.3V Red
3 LAD1 Purple
4 Not connected
5 LAD2 White
6 LPC Clock Green
7 LAD3 Blue
8 Ground Black
9 LPC Frame# Yellow
10 Not connected

Type-M 2×7 2.0mm (MSI)

Pin# Function Wire color
1 LPC Clock Green
2 Not connected
3 Not connected
4 3.3V Red
5 LAD0 Gray
6 Not connected
7 LAD1 Purple
8 Not connected
9 LAD2 White
10 Not connected
11 LAD3 Blue
12 Ground Black
13 LPC Frame# Yellow
14 Not connected

Type-AR 2×7 2.0mm (Asrock)

Pin# Function Wire color
1 LPC Clock Green
2 Not connected
3 LPC Frame# Yellow
4 Not connected
5 Not connected
6 Not connected
7 LAD3 Blue
8 LAD2 White
9 3.3V Red
10 LAD1 Purple
11 LAD0 Gray
12 Ground Black
13 Not connected
14 Not connected

 

Verified compatible motherboards

 

2 Comments

  1. Andy

    Ok, I’m sold – where is the PCB / where can I buy one of these?

    • elmor

      Shouldn’t be long until these are available. More info in 1-2 weeks.

Comments are closed.