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No Green, Only Red and Blue??

By 412Know,1 Must Seek ·
Ok, I've got this p4 mobo (PC chips)and an Intel 1.5ghz CPU. I bought the machine as is at the time. I got around to checking it out, afer discovering the FDD cable was reversed, it seemed fine. I tested all the components and ran HD and RAM checkers...no problems. I go to close the machine and stand it up, The Green goes out and I have tried several known good Video cards I have on all available slots (all 2 of them)there is no AGP slot, just a small Video jack that plugs into a rectangular pin socket on the mobo. I know I had this problem with anoher mobo, but can't remember how I fixed it. Oh, and there is no setting in the bios to disable the on-board video, that I can see. Any suggestions? And while Im on that subject, I had a few that won't show video at all. How would I know if it is a bad mobo or a bad cpu without being able to swap them out? I use all known tested and working Video cards both pci and agp. Thanks!

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by Black Panther In reply to No Green, Only Red and Bl ...

You have tried different Video cards - have you tried a different monitor?

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by 412Know,1 Must Seek In reply to

Poster rated this answer.

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by Balbir In reply to No Green, Only Red and Bl ...

412Know is right, it is most likely monitor problem.
Check for a bent pin in the VGA plug on the lead to the monitor. But most likely it is the monitor.
Balbir

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by 412Know,1 Must Seek In reply to

Poster rated this answer.
That was the ticket, bad monitor cable. It wasn't a bent pin, but when it moved it would short out the green. I figured it out when I had just about given up on the one machine and started trouble shooting another... and then the green went out. I was like...No way. So I narrowed it down to that and viola! Thanks! You win the bing bing points..

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by ghimpe-- In reply to No Green, Only Red and Bl ...

Yea, sounds like a monitor problem.

Also, when you want to disable onboard video look both in BIOS for setings and on the mobo for pins.

Be aware that some of the first mobo's with onboard video do not have neither jumpers nor a seting in BIOS to disable the onboard video.

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by 412Know,1 Must Seek In reply to

Poster rated this answer.

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by 412Know,1 Must Seek In reply to No Green, Only Red and Bl ...

Hi Y'all.. Thanks for the quick response, and my additional clues are...
1. I did mention in the 1st post that I tried several video cards that I have that are good.
2. I didn't mention that I have several monitors that are all good (but I did try them, to no avail)
UPDATE TODAY:
I gave it another shot, turned it on, and viola, COLOR, once again I tried standing the machine upright (I usually turn them on their side's while working on PC's so I can see better) and the green went out, laid it back down and it went back on. I know it is a short of some type. I am going to check the pins as answer #3 suggested.

I did buy this machine with this existing problem of the color for $70.00 USD. I figured even If I could'nt get "it" running, the parts were worth well over that, having 512megs ram (pc133), a 40 gig HD, a DVD-r and a P4 1.5ghz CPU. I almost bought a new mobo yesterday, but they don't have anything that Sloooow brand new anymore here..
I guess the shelf life of thewe things is about 6 months tops these days. I know it was bought in 2003. My fastest system that is working is a P3 550 mhz system, so this is a big step up, if I can get it solid. I am now an a quest for drivers, but still am having a hard time finding that maker. I thought it was a PC chips, but I couldn't locate it at their website. A google search diredted me to Asus, but I didn't locate it their either. The most obvious markings are PC400 ib the center of the board on a gold heat sink, chipset says XP4 HT7961. AMIBIOS setup ver. 1.21.10. Any help there or do i need to post a new question for that??
Thanks again and keep the suggestions coming.
Oh.. the Monitors I have are a Princeton E090, a Sony Multiscan 400ps, a Hyama Vision master 450 and a Barco Reference Calibrator(Extremly high end)I think it was $7000.00 new in 2000. They all seem to work fine.

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by 412Know,1 Must Seek In reply to No Green, Only Red and Bl ...

Opps... let me correct myself... I'm going to check the Pins as number 2 (TWO) suggested, not 3, but I will scour the bios and cmos as well to look for more options. For now Im stuck with this baby on its side because it works.. but it can't stay this way for long. )

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by ozi Eagle In reply to No Green, Only Red and Bl ...

Hi,

Your problem could also be a faulty soldered joint on the mobo.

If you are confident with a soldering iron, try resoldering the pins from the video connector to the mobo. Just a quick touch with a hot iron and fresh solder wire.

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by ozi Eagle In reply to

Have you tried swapping the video cable?

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