Pin Connector Problem?  | |
April 5th, 2004, 01:42 PM
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#1 (permalink)
| | Junior Member
Join Date: Mar 2004
Posts: 1
| Pin Connector Problem?
I am building a PC with an Intel D875PBZ board. I *thought* I had all the pin connectors to the "front panel* connected properly. Apparently, I don't. There are four connectors: "Reset SW", "H.D.D. LED", "Power SW", and "Power LED." I looked at the MB documentation and followed it very closely. But something is wrong -- I just can't figure out what it is. Here's the issue: When I power on the computer, all LED lights come on but when I push the button to turn the computer off -- it doesn't go off. I am forced to turn it off using the "off-on" button in the back by the power cord. I know that's not right. I should be able to use the same buttton in the front to turn it off and on. I must have some connector pinned incorrectly but I can't figure it out The *documentation* isn't very helpful -- it's a bit confusing.
The other problem which *may* or may not be related is that I've attempted to install the monitor, mouse and keyboard. The monitor indicates "No video signal." Plus, the floppy drive is getting power but the Lite-On DVD is not -- no green lights, it won't open nor close. I have all the power connectors connected on the DVD player. This is *so* frustrating. Could these issues be related to my failure to get the Power connector connected properly or does this sound like a separate issue?
Any and all help is appreciated. I'm at wits end with this -- I've been at it for days. Thanks for any suggestions you may offer.
Last edited by Unrelenting : April 5th, 2004 at 01:46 PM.
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April 5th, 2004, 02:07 PM
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#2 (permalink)
| | Ultimate Member
Join Date: Apr 2003 Location: Texas
Posts: 2,194
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Try turning the power connector 180 degrees. The connector has letters on it turn it so that it faces the opposite direction.
Take your video card out and reinstall it. Make sure that it is well seated.
If you have the power connected to the DVD drive properly then it may just be a bad drive.
Edit:
I am inclined to go with zeppers idea. The fact that you can turn the pc on with the button means that it is connected properly at the pins. ATX systems have what is called soft power off. You need to hold the power button in for 4-6 seconds to power off.
Last edited by Jarhed7276 : April 5th, 2004 at 04:22 PM.
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April 5th, 2004, 02:20 PM
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#3 (permalink)
| | Ultimate Member
Join Date: Sep 2002 Location: Finger Lakes area
Posts: 2,373
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You may have your power switch connected to the "Standby Power" pins instead of the Power On/Off pins - some are marked very confusingly. And most power switch circuits are on a four second delay to prevent accidental bumps of the switch from turning off the machine. So you have to press and hold the power switch for about four seconds to actually power down. Some more tips...
Boilerplate-01:
. Common causes of failure to boot (no video, no beeps):
1- RAM, CPU and/or AGP video card not seated properly, or a bent pin.
2- Drive data cable on upside down or only on half the pins or shifted . a pin or two (usually Floppy or Zip drives).
3- CMOS needs to be cleared (AC power must usually be disconnected or attempts to clear CMOS may fail, unless your mobo does not use a power-off CMOS clear) - check your mobo manual for specific info. I always clear the CMOS on new mobo installs - has saved untold hair pulling.
4- On some new mobos there is a CPU protection feature (esp. on Asus/Asrock Athlon/Socket A mobos) that will not allow the system to start if there is no fan (or a fan without a working speed sensor wire) connected to the fan power connector on the mobo (specifically marked "CPU Fan"). If you tried to start your machine without a fan properly connected, you have to attach a proper and working fan and clear the CMOS before it will boot.
.bh.
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April 5th, 2004, 02:28 PM
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#4 (permalink)
| | Supporting our military
Join Date: Oct 2002 Location: Bottom left of U.S.
Posts: 9,197
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I agree with Jarhed7276 about the 180 thing.
It's happened to me.
Zepper's suggestion is also valid.
Don't believe the problems are related.
Bill |
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