HP ProLiant Motherboard Jumpstart Pinout

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • IamPritesh
    Badcaps Veteran
    • Aug 2017
    • 356
    • India
    #1

    HP ProLiant Motherboard Jumpstart Pinout

    I have this HP ProLiant ML10 motherboard which is bricked as of now. This has a 10 pin front panel. For me its usually the 6 and 8 pin that needs to be shorted to start your mobo.
    This is a server motherboard so its bit different I assume, does anyone know which pins needs to be shorted to imitate switching of power button?
    I have attached the pics if that helps.

    P.S - Pin number 8 is not connected to ground.

    Also is there a schematic available for the same ?
    Attached Files
    Tags: None
    • IamPritesh
      Badcaps Veteran
      • Aug 2017
      • 356
      • India
      #2
      Re: HP ProLiant Motherboard Jumpstart Pinout

      Anyone ? Thanks

        Comment

        • momaka
          master hoarder
          • May 2008
          • 12175
          • Bulgaria
          #3
          Re: HP ProLiant Motherboard Jumpstart Pinout

          With the motherboard plugged into a power supply and the power supply plugged into the wall, use a multimeter to see which one of these pins reads high (over 3.3V). Then short to ground with a 100-330 Ohm resistor each one of these pins (one by one) until mobo turns on - that's your PWR_SW pin. I use this method quite often on proprietary HP and Dell mobos.

            Comment

            • IamPritesh
              Badcaps Veteran
              • Aug 2017
              • 356
              • India
              #4
              Re: HP ProLiant Motherboard Jumpstart Pinout

              Originally posted by momaka
              With the motherboard plugged into a power supply and the power supply plugged into the wall, use a multimeter to see which one of these pins reads high (over 3.3V). Then short to ground with a 100-330 Ohm resistor each one of these pins (one by one) until mobo turns on - that's your PWR_SW pin. I use this method quite often on proprietary HP and Dell mobos.
              That is a great idea. Why a 100-300 ohm resistor in this case ? On usual boards you just short it with the screw driver

                Comment

                • momaka
                  master hoarder
                  • May 2008
                  • 12175
                  • Bulgaria
                  #5
                  Re: HP ProLiant Motherboard Jumpstart Pinout

                  Just because it's an HP OEM board and it might have jumper pins on there connecting directly to the power supply's 5VSB/3.3VSB rail. This leaves the possibility of sending 5V/3.3V to a signal line that is not designed to take that much and damage something. With a 100-300 Ohm resistor (actually probably anything from 20 Ohms to 470 Ohms will do), you don't risk shorting anything.

                    Comment

                    • IamPritesh
                      Badcaps Veteran
                      • Aug 2017
                      • 356
                      • India
                      #6
                      Re: HP ProLiant Motherboard Jumpstart Pinout

                      Originally posted by momaka
                      Just because it's an HP OEM board and it might have jumper pins on there connecting directly to the power supply's 5VSB/3.3VSB rail. This leaves the possibility of sending 5V/3.3V to a signal line that is not designed to take that much and damage something. With a 100-300 Ohm resistor (actually probably anything from 20 Ohms to 470 Ohms will do), you don't risk shorting anything.
                      Thanks for the clarification. I checked the voltage on the pins and there are two pins that shows some kind of voltage and one is 0.25 and another one is 0.35 volt. How should I proceed ?

                        Comment

                        • momaka
                          master hoarder
                          • May 2008
                          • 12175
                          • Bulgaria
                          #7
                          Re: HP ProLiant Motherboard Jumpstart Pinout

                          The two pins that show a voltage - short them to ground with a resistor, as I mentioned above. One of them should turn on the motherboard.

                            Comment

                            • IamPritesh
                              Badcaps Veteran
                              • Aug 2017
                              • 356
                              • India
                              #8
                              Re: HP ProLiant Motherboard Jumpstart Pinout

                              Originally posted by momaka
                              The two pins that show a voltage - short them to ground with a resistor, as I mentioned above. One of them should turn on the motherboard.
                              Thank you sir. Tried but it still does not turn on. Could you please look into this thread which gives a better picture of my motherboard issue.
                              https://www.badcaps.net/forum/showth...409#post853409

                                Comment

                                Previous template Next

                                Related Topics

                                Collapse
                                • glovecaps
                                  Asus ROG Strix Scar G533qm with a G733qm Motherboard, can I modify the Bios to accept G533 Bios
                                  by glovecaps
                                  Hello,

                                  I have a Asus ROG Strix Scar 15 (G533QM) that had a dead motherboard (Graphics card dead) and after trying to fix the motherboard with no success, I bit the bullet on a sale for a new motherboard. I ordered a motherboard for the 15 inch model which is the one that I have, and when the motherboard arrived it wasn't for a little while that I saw it was from the 17 inch model.

                                  My question is, can I update the Bios on this G733 motherboard to a G533 Bios.

                                  The reason for wanting to do this is that the keyboard isn't working as it should, and I think this...
                                  11-25-2024, 04:23 PM
                                • Docus
                                  Legion Y540 17irh motherboard issue ( need help to know how to diagnose my motherboard)
                                  by Docus
                                  Hi everyone 😀,

                                  I'm here today to ask for help with repairing the motherboard of a Lenovo Legion Y540 17IRH.

                                  To give you some context, I'm passionate about computer repair so much so that I've invested in a lot of tools and started practicing on dead and old hardware. I've been learning how to solder and desolder components, mostly focusing on phone repairs.

                                  Recently, I bought a broken Lenovo Legion Y540 17IRH for just €150, and there are two main reasons why I made this purchase:
                                  1. I already own the exact same model, but its plastic chassis is badly damaged.
                                  ...
                                  06-10-2025, 04:24 PM
                                • acedogblast
                                  Guide to transplant MEC1503 EC chip and EEPROM reprogamming for T14s gen 2 and X13 gen 2
                                  by acedogblast
                                  This is a guide that I am writing for helping others to replace their MEC1503 EC chip if it breaks (or to get around an inconvenient prompt to the BIOS). This forum has been extremely helpful to me so I would like to contribute to help others. I will tell you right now that this task is very difficult to do. You MUST have experience and tools to do precision micro-soldering, BGA reballing, trace repair, and general laptop repair skills.

                                  There are some specialty tools needed to do this task. The replacement MEC1503 chips can be acquired from Aliexpress. Do not buy the bare chips as...
                                  11-02-2024, 05:13 PM
                                • Archimedes
                                  HP Envy 17-3290NR 3D Blank Screen - motherboard Louis V1.1 6050A2489901
                                  by Archimedes
                                  Subject is a blank screen issue in HP Envy 17-3290NR 3D version laptop with motherboard Louis V1.1 6050A2489901 MB-A02. Production year is 2012. This one is a 2nd hand motherboard which I could use it for few months only. Suddenly no output from the internal display and also no signal from HDMI port then Windows out of order after few boots.

                                  Caps lock working normally and no HP's caps-lock warning blinks. Making a hard reset and replacing the RAM sticks or using different slots didn't help.

                                  Fans are spinning. Blindly could install windows11 and got the device manager...
                                  07-30-2024, 05:14 PM
                                • momaka
                                  ASUS P5GC-MX motherboard recap
                                  by momaka
                                  Here’s another motherboard that needed a full recap: an ASUS P5GC-MX.
                                  This one was gifted to me some years ago by user Pentium 4, along with a few other goodies. It actually came in working order with no bulging or leaking caps. However, I noted there were United Chemicon KZG caps everywhere on the motherboard. The CPU VRM output (CPU V_core) was the only exception: it had only 2x KZG. The rest was 6x UCC TMV 4V 680 uF caps… which aren’t any good news either.

                                  So here is what the motherboard looked like with its original caps:


                                  CPU VRM area up close…...
                                  01-27-2021, 11:59 PM
                                • Loading...
                                • No more items.
                                Working...