motherboard - Front Panel Connector problems

08
2014-07
  • ArcaneExplosion

    I just built a new computer with an ASRock z87 in an NZXT case. The motherboard has a 9pin front panel connector, but my case only has 8 pins, the 2LEDs for HD, 2 for Power, and the switch for the powerbutton and the reset button, each with two pins. My LED lights won't even light up and I'm not sure if the problem is that there is one unused ground pin.

    I know the power supply works as the motherboard's ethernet light and the GPU light blinks once when I turn the supply on, but otherwise nothing.

    • Answers
  • miggy

    Pin #10 (ground) in the System Panel Header is normally not used. If you have correctly connected the case connectors, the system should power ON. You can also use the Smart Switch (Power Switch) on the motherboard (you might like to disconnect the the System Panel Header first). If the system still does not power ON, the problem lies somewhere like 1x8 ATX 12V not connected to the PSU, 24 pin Power connector not properly connected, etc.


    • Related Question

    led - HP DX5150, MS-7050 v. 1.3 Motherboard front panel pin connectors
  • Daniel

    I recently purchased and installed a MS-7050 v. 1.3 motherboard into a regular non-HP case and thus the front panel connectors are different than the original OEM connectors which are all bundled together. The HP support website does not have this information available and someone from HP indicated in response to a support forum question that this information is not available.

    What is the motherboard pin schematic for the front panel i/o connectors (power, reset, hdd led, and power led)?


    • Related Answers
  • KCotreau

    Boy this was hard to find. I hope it is what you are looking for.

    F_P1 PinOut

    17 15 13 11 9 7 5 3 1
18 16 null 12 10 8 6 4 2

    SHORT:

    HDD led op 1/3
Power led op 2/4
Power Sw op 6/8
Reset Sw op 5/7

    LONG:

    Pin Signal name Motherboard signal Implementation

    1 HDLEDPWR HDLEDPWR Pulled up to Vcc through 330ohm resistor
2 BLINK-GRN GONE-2_SLEEP* and MESSAGE_WAITING* Routed to both GPIO ports and PIIX4
3 HDACT* HDACT* Routed from pin 39 of primary and secondary IDE ports. Signal pulled high.
4 BLINK-YEL GONE-2_SLEEP* and MESSAGE_WAITING* Routed to both GPIO ports and PIIX4
5 Ground Ground Routed to ground
6 SWITCH_ON SW_ON Routed to PWRBT* signal on PIIX4 and pulled up to SB3V
7 FP_RESET* FP_RESET* Connected to motherboard PWRGD_ITP signal power good) and pulled up to Vcc3 
8 Ground Ground Routed to ground
9 Vcc Vcc Routed to Vcc
10 FPSLP COMATOSE* Routed to SMBALERT/GPI11 on PIIX4
11 IRRX IRRX Routed to IRRX pin on SIO
12 FPSLP_PWR N/A Routed up to Vcc
13 Ground Ground Routed to ground
14 KEY
15 IRTX IRTX Routed to IRTX pin on SIO
16 Vcc Vcc Vcc

    http://h30499.www3.hp.com/t5/Business-PCs-Deskpro-EVO/DX5150-F-P1-pin-id/td-p/927407

    http://bizsupport.austin.hp.com/bc/docs/support/SupportManual/c00307105/c00307105.pdf

  • Silverloz

    I spent a long time tracking down the info on the headers for the MS-7050 motherboard. It's an OEM version exclusively used in the HP DX5150 desktop (SFF) and mini-tower PCs, so there is no information on it from the MSI website. To help others find this more easily, I've posted it online and also made it available as a PDF here: http://homepage.ntlworld.com/loz-saunders/MS-7050/

    Hope this helps someone.