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DO I NEED A NEW MOTHERBOARD?

By pcguru09 ·
I'M REPAIRING A HP PAVILION a6300f THE OWNER HAS HAD IT FOR ABOUT 2-3 YEARS AND HAS HAD TO CHANGE THE MOTHERBOARD 3 TIMES THAT SOUND A LITTLE FUNNY TO ME BUT YOU CAN NEVER TELL, IS THIS SOMETHING THAT IS NORMAL? WHAT THE PC IS DOING IS I TURN IT ON AND IT SOUNDS LIKE IT WANTS TO BOOT UP BUT THE ONLY THINGS THAT WORK ARE THE FANS, THE POWER LIGHT FRONT AND BACK, NO MONITOR AND NO HD ACTIVITY MEANING NO AMBER LIGHT COMING ON OR FLICKING COULD THIS BE ANOTHER BAD MB OR MAYBE THE POWER SUPPLY THIS TIME. FROM WHAT I HAVE READ ON DIFFERENT POST MOST SAY THE MB IS A CHEAP MODEL OH BY THE WAY IT'S A FOXCOMM MB ANY SUGGESTION?

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All Answers

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It certainly could be the M'Board

by OH Smeg In reply to DO I NEED A NEW MOTHERBOA ...

But then again it could just as easily be the Power Supply which is killing the M'Board.

Both of those are cheap items and both could be causing this to happen.

You can try reducing the unit to the least that will run the computer so 1 RAM Module no HDD no Optical Drive and just the Monitor, Keyboard and Mouse connected and see if that does anything different.

If you can get to the POST Screen reattach the Optical Drive and fit something like the Ultimate Boot CD to perform some Diagnostics it's available free here

http://www.ultimatebootcd.com/download.html

Just remember click on the ISO Download not the add on the web page.

If you can not get a POST Screen to appear I would try changing the Power Supply with a Known Good one. Of course if the M'Board is toast it could destroy the replacement power supply.

Of course if you can not get any POST Screen to appear remove all but the CPU and then try powering on and see if the Error Beeps that the M'Board gives out correspond with the No RAM message. If that doesn't work at that stage change the M'Board.

Col

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It is like this:

by popova71 In reply to DO I NEED A NEW MOTHERBOA ...

1. No fans, no nothing:
Problem with PSU 100%

2. Fans work, no display, no HDD activity LED, no beeps
MB problem in 90%, try flashing BIOS, check for loose connections on power supply connectors - and be ready to buy new MB. Dead MB does not give you beeps.

3. Fans work, no display, HDD activity LED turned on (not blinking) , no beeps
In 90% memory related problem - defective memory card, slot on MB, wrong type of RAM - try using another slot in MB, another memory (in every slot), if there are multiple memory cards take all out but one. Most MB does not give you beeps when RAM not installed (or dead RAM). Try those RAM modules in working MB. If RAM is OK - MB is in fault, probably...

4. Fans work, no display, HDD activity present (or not), beeps a beeping
You got lucky.... Listen to the beeps, how many long, short beeps, google it. Yeah, beeps will tell you if it is VGA, CPU or something else problem

5. Fans work, got stuck on POST screen only, can (or can not) enter BIOS settings, resetting (or not)
This one is not easy... Bad, but still working PSU; or CPU overheating (bad contact with cooler); or bad CPU; or bad MB; or defective RAM; or bad BIOS. Try clearing BIOS.

For full low-tech MB troubleshooting you will need (from some working system):
1. PSU (so you could eliminate PSU problem)
2. RAM (so you could eliminate RAM problem)
3. VGA (so you could eliminate VGA problem)
4. CPU contact paste - this one you must buy

Whatever you do, first disconnect everything not necessary: HDD-s, PCI cards, USB thingies...

Good luck

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Reponse To Answer

by pcguru09 In reply to It is like this:

MORNING THANK YOU FOR YOUR REPLY
OF THE CHOICES YOU GAVE ME NUMBER 2 IS THE ONE THAT IS THE PROBLEM,
ANY IDEA AS TO WHY THIS SYSTEM KEEPS BLOWING MB THIS IS THE 3RD ON WITHIN 2 YEARS

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It keeps killing MBs?

by seanferd In reply to DO I NEED A NEW MOTHERBOA ...

Then I suspect the power is very "dirty" at the location where this system is used (assuming it isn't an environmental problem like dust, smoke, heat, or humidity). The system should be using some sort of power filter, like a UPS battery backup.

Could be that the PSU is the problem. If it is bad, it could be damaging the board.

Could be that the boards are horribly defective by nature as well. It happens.

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if you overclock past the system's high end you'll **** the MOSFETs

by CG IT In reply to DO I NEED A NEW MOTHERBOA ...

every time.

While overclocking has a cool factor, usually ends up costly. If you don't overclock, I would look at heat related issues. Heat is a computers worst enemy.

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Hard to tell

by popova71 In reply to DO I NEED A NEW MOTHERBOA ...

@pcguru09

There can be several reasons for repeating MB failure, maybe poor engineering on that particular model? Are there any addons, PCI cards, modems, TV/FM cards, USB junk?

PSU is first suspect, but power supply (from cheap or defective extension cords) can cause damage, but usually on PSU itself. Is PSU working? Working fans means that 12V is present, but what about 5V an 3V3 channel?

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Reponse To Answer

by pcguru09 In reply to Hard to tell

HI THANKS THERE IS NO ADDONS EVERYTHING IS BUILT IN TO MB
I CHANGED OUT THE POWER CORD DIDN'T DO ANYTHING ONLY THE
FANS, POWER LIGHT ON BACK AND FRONT WORK BUT NO AMBER LIGHT FROM HD AND NO MONITOR ACTIVITY AND NO BEEPS

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Physical damage

by PFKThorin In reply to DO I NEED A NEW MOTHERBOA ...

You may have already done this, but it bears mention that a visual inspection of ALL internal components (paying particular attention to the PSU and cables) has merit here. Please pardon me for stating the obvious, but I have seen my share of burnt PSU cables blowing motherboards.

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Reponse To Answer

by pcguru09 In reply to Physical damage

Thanks i checked all cables inspected the psu, checked the MB didn't see or smell anything that was burnt from what the owner told me was that the original MB was doing the same thing wouldn't start up just like it is doing now, so maybe the psu was the original problem and installing the 2 new MBs it just burnt them out to, I'm going to try changing the psu first seeing that's the original one thank you

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STOP YELLING

by Spitfire_Sysop In reply to DO I NEED A NEW MOTHERBOA ...

What the **** is wrong with you? Is your CAPSLOCK broken too?

Yes the motherboard is the problem. It was made by Foxconn. Buy a new motherboard from any other vendor. Connect this PC to a UPS before you power it up next time. This will protect your PSU and MB from further damage. You may find that the PSU is eating MBs for lunch. They do that.

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