IBM motherboards m50

G

Guest

Guest
who makes the newer p4 ibm motherboards they are newer type in the M50 thinkcentre computers I need pinouts for the front usb as they are not the standard types. thanks
 

ppuskari

Honorable
Sep 16, 2012
1
0
10,510
For anyone else searching after all this time like I was for the oddity that the M50 front usb board connector is. The answer goes along with the previous one.

Yes it's the standard usb 4 pin dual row pinout. When looking at the mother board port and the IBM screen print right side up

2 4 6 8
1 3 5 7 9

Port 2 Vcc U- U+ G
Port 1 Vcc U- U+ G G

Pin nine is indeed ground! BUT in order to sense this extra front port hub in bios, you MUST tie all ground together. I just short jumpered my stock case usb 2 port header so pins 7 8 and 9 were tied together.

The native OEM front port panel connector jumpers these in the black main shell....

My normal case ports now work perfectly!
 

FrostyWinnipeg

Distinguished
Jan 2, 2012
2
0
18,510
ppuskari is bang on. In my case the front panel USB block had the hole blocked off where the number 9 pin on the motherboard is so it was Dremel time to clear it.

Jumpered 8 to 7 and 7 to 9, enabled Front USB in the Bios and it worked. I never tried enabling Front USB in the bios only, worth a shot to someone. I'm not gonna take the jumper wires out now.

Now does anyone know how to hook up a Front Audio cable block to the AFP2 port?