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How-To Geek Forums » Build Your Own PC

(Solved) ~ @rick - Wiring Mobo

(38 posts)
  • Started 7 months ago by mtalicarox
  • Latest reply from mtalicarox
  • Topic Viewed 652 times

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mtalicarox
Posts: 37

Rick, I'm trying to put together the motherboard, it does not specify what cables are positive and negative though on the case. One white cable is labeled as negative, should I assume the rest of them are negative? The case is a Thermaltake.

Posted 7 months ago #
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mtalicarox
Posts: 37

the wires also have a triangle on one of them and a G on the other

Posted 7 months ago #
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raphoenix
raphoenix
Posts: 5223

mtalicarox,
Are you speaking about the row of motherboard header pins and the multi-colored wires going to the push button and lights on the case and HD ????
Post me a link to the manual, motherboard and case.
Don't worry, you are not going to hurt anything here but best to get them spun around correctly are things won't work.
Best Regards,
Rick P.

Posted 7 months ago #
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mtalicarox
Posts: 37

Hey Rick, I would post a link to the manual.. but I don't have one I believe I have gotten it figured out.. white = negative, colored = positive. Seems to coincide with what I've read.

But yes I was referring to the row of motherboard header pins and multi-colored wires going to the push and lights on the case. Thanks for the quick respond I appreciate it. If I do encounter issues I will take pics and post it.

Posted 7 months ago #
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raphoenix
raphoenix
Posts: 5223

mtalicarox,
That is the way most cases are wired.
If the LEDs don't light, reverse connectors on the pins.
The pins on the header should have tiny markings silk screened on the MB.
I use a Magnifying Glass and strong Pen Light to see them.
Post back if you have problems and we'll Git'er Done !! (LOL)
Best Regards and Good Building,
Rick P.

Posted 7 months ago #
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mtalicarox
Posts: 37

Rick, the computer isn't booting up. i checked all the connectors and they seem fine. the first time tried booting, had a blue led on front of tower that disappeared when we connected the 12v cable to the mobo from the power supply, which we had forgotten at first. now nothing. do you have any ideas?

Posted 7 months ago #
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raphoenix
raphoenix
Posts: 5223

mtalicarox,
The Motherboard has a name, model and version number.
Post that info to me NOW.
Unplug PSU and DO NOTHING until I Reply Back after looking up Manual.
Regards,
Rick P.

Posted 7 months ago #
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mtalicarox
Posts: 37

GIGABYTE GA-MA790GP-UD4H AM2+/AM2 AMD 790GX HDMI ATX AMD Motherboard

Posted 7 months ago #
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raphoenix
raphoenix
Posts: 5223

mtalicarox,
Download, Save and Print Manual.
Read and Understand it tonight.
Re-Build Machine ACORDING to Manual tomorrow.
http://www.gigabyte.us/Product.....uctID=3004
Right Hand Side of page MANUAL and follow to download.
Post back (Hey Rick) Topic in the morning 9:00 CST.
Post link to Case.
Regards,
Rick P.

Posted 7 months ago #
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Budohorseman
Budohorseman
Posts: 761

One note with Gigabyte boards, they will not power up if the fan on your heatsink/cpu is not properly attached. The first time I had mine set-up, I had the fan power connection shifted by a pin and it would not boot until I tracked that little issue down.

Posted 7 months ago #
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mtalicarox
Posts: 37

we're not getting any power form the switch when we push it.. the cpu/heatsink is hooked up properly.

Posted 7 months ago #
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Budohorseman
Budohorseman
Posts: 761

The main things to check is that your CPU and RAM (all DDR2 RAM) are seated properly, unplug the ATX plugs (the long 24 pin one by the RAM and the 8 pin one by the CPU) and then plug them back in and make sure they are set. They can take a bit to get them to seat properly, and there is usually an audible click when they are set. Next unplug the heatsink/cpu fan and plug it back in, making sure it is properly seated as well. If you have at least all of that properly set up, you should at least be able to power up, and get some BIOS beeps telling you that you have no graphics card plugged in (unless it has onboard video, I don't recall right now).

Short of that, check the usual suspects, ie, make sure you didn't trip a breaker on your power strip/outlet, make sure the dog did not lay down under the desk and turn the power strip off (took me nearly two hours to track that one down once lol).

Oh, and make sure you have the Power Button connected to the mobo correctly, all those pins are jammed right next to each other, and there is no 'prevention' to keep you from having it flipped the wrong way.

Posted 7 months ago #
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mtalicarox
Posts: 37

thanks budohorseman, its very strange and have tried pulling out and reconnecting wires. still getting no response when hitting power button.

strange side note - with the connections from the case to the mobo, the only time we get any result is by switching up the wires. we can get a blue light on front of case (which denotes hdd activity), and that is all. and that comes from wires in the wrong pins.

Posted 7 months ago #
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mtalicarox
Posts: 37

is there any way to check for failure with the mobo? starting to wonder if thats the culprit

Posted 7 months ago #
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Budohorseman
Budohorseman
Posts: 761

Well, I'll take a fresh look at it tomorrow, actually, make that later on today, I'll open my case and take a look at the wiring inside.

Posted 7 months ago #
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mtalicarox
Posts: 37

thanks sounds great

Posted 7 months ago #
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Budohorseman
Budohorseman
Posts: 761

Just to confirm, all of the white wires carry the negative charge. Since my case does not have any LED's on it, I only have the Power Switch and Reset Switch hooked up. So on the Front Panel Header, on the bottom row for pins 3 and 4 I have the reset switch plugged in (white then colored wire) and on the top row for pins 3 and 4 I have the power switch (colored then white wire). All of the other connections on front panel header just provide activity (or lack thereof) info.

After that, assuming you have your 2x4 12V and 2x12 12V mobo connectors seated all the way (until the retainers click), when you push the power button you should get something, at the very least a series of BIOS error beeps. If you don't, odds are you have a problem with either your mobo or your psu.

Posted 7 months ago #
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raphoenix
raphoenix
Posts: 5223

mtalicarox,
Here is the picture out of the manual for the board.
Try switching PW connector leads 180 degrees if board fails to boot.
Wire colors are arbitrary so may always have to connect according to results.

Regards,
Rick P.

Posted 7 months ago #
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mtalicarox
Posts: 37

Thanks for the help. Yes we've got the wires hooked in correctly.. I'm beginning to think the mobo or cpu might have been DOA....

Posted 7 months ago #
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raphoenix
raphoenix
Posts: 5223

I have the manual downloaded.
Am flying on instruments.
Give us a clue as to what you actually see happening and what you have tried.

Posted 7 months ago #
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