I have 2 of these cases and when properly connected to 2 different motherboards I get zero, nothing, notta. I jumped pin 4 and 7 and the power supply fires up. Anyone have a wiring diagram for the power supply so I can see if it matches my motherboard? It should be industry standard but I am at wits end trying to figure this out
An expert who has achieved level 2 by getting 100 points
An expert who has answered 20 questions.
An expert that has over 10 points.
An expert whose answer got voted for 2 times.
Re: powering up issue
Only guess I have is unplug the 4 pin connector from the MB if you used it, I had that problem with an Abit nf7-s, no joy until I found out the extra 4 from a 24 pin is NOT what hooks to the 12V boost connector on the MB when you only have a 20 pin main hook-up. Sorry if this doesn't help.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
> problem with barebone system
> asks for a password in the Setup
Turn the computer off.
Disconnect the AC power.
Look on the motherboard for three pins in a row, with a jumper between #1 and #2.
Move that jumper to connect #2 and #3. Count to ten.
Move that jumper back to #1 and #2.
The motherboard has been reset to its "factory" settings, i.e., NO password.
Connect the AC power.
Turn the computer on.
Press <DEL> to enter Setup.
It should NOT ask for a password.
Do you have the manual for your motherboard? If you do, there would be a section on connecting the power and reset buttons. If not, you can always google your motherboard's make and find a manual there. There is a group of pins in the lower right hand corner of your motherboard most times, and it is written on the board where the wires are meant to be plugged in. Just remember that the writing on the black plastic will face the bottom of your computer case when plugged in correctly.
Hope that helps.
Power supply is easier to troubleshoot my local pc shop has used ones for $5 or if you have one laying around make sure you have one with the proper mobo connector 24pin will sometimes fit 20 pin as long as there are no transistors to close to plug just turn pc off unplug all drives and mobo plug in good supply and turn on if it works thats the problem if not probably mobo
Due to the fact that the clock is working on the front panel I would say you at least have some power 1. If your power supply has 110/220 selection on the back make sure that is set to the appropriate setting. 2. Check to make sure the power is attached to the board right due to you changing the power supply make sure that the if the board requires the additional 4 pin and or any others from the power supply that they also are plugged into the mother board! 3. Check to make sure your switches from the power switch/ reset switch / hd lite / etc are all properly in the right spot and in the right direction observing positive and negativeorientation.
If all these are done and still nothing happens and the fan on the power supply is working you still can due further testing on the power supply using a multimeter and checking that the connectors to the board are functioning properly, if they are and you have done all the above things two possibilities remain, one your processor is installed wrong or not working or as you thought, your board could be malfunctioning..
I forgot to mention that you also have to make sure that the fan's are also plugged into the board properly (cpu fan, case fan, etc) this can also disable your computer from starting!
Note: I am going by the information above, if your computer made a sound or anything else please let me know!
I checked a known good spare motherboard with a VOM (continuity tester): pin 4 of the KB PS2 port, pin 1 of the rear USB, pin 1 & 2 of the front panel USB onboard connector, pin 3 of the infrared, pin 4 of the speaker connector, pins 4, 6,21 & 22 of the ATX 24-pin Power Connector are all interconnected (+5VDC). If that is an indication of the general +5 supply layout, you can probably hard wire a new +5 supply line to where the +5 is gone from where it is still available. Of course without a schematic, I might be off.
Determining the actual component position of the surface mounted fuse (or fusible link) might not be that easy since manufacturer do not publish such information loosely. A shotgun approach (test all) would be time consuming but of course challenging.
Your best bet would probably be as mentioned earlier, hardwire and install in series with the new +5 line a low amp (500ma or lower) smfuse. This article describes the power requirement of USB ports > http://pinouts.ru/Slots/USB_pinout.shtml.
Hope this be of some help to you. Pls post again how things turn up. Good luck and kind regards.