Solve : HP motherboard repair question?

1.	Solve : HP motherboard repair question?
Answer» I just picked up a known, non working Hp Pavilion, P7 1235, for parts. Pretty nice looking rig, so I thought I would check it out to see what its malfunction was, I feel sure it the motherboard, all fans come on, can hear the hard drive, but have no video from integrated ports or from a known working video card. No beeps. It has the MSI MS-7778 (Jasmine) motherboard. What goes wrong with the board to cause this, and could it be repaired at home. I have re-capped several boards with success...so, I would try and take it on, if its possible. thank youThere is no easy way to know if the capacitors are bad, unless if is visible. There are other things that make moboss go bad. A mobo can have hundreds of feed thru points trance. Any one could be damaged and not be visible. Rad this: http://www.sparepartswarehouse.com/blog/post/common-causes-of-motherboard-failure.aspx This might suggest one should try these tricks before giving up. That is true. Bu it does not mean most failures can be resolved. Quote When a laptop mainboard failure occurs, it is a very labor-intensive task to replace or repair it. One should also weigh the cost of replacement/repair against the cost of a new laptop, as replacing a motherboard is often one of the most costly repairs you can make. That can apply also to many desktop motherboards. A used reconditioned Desktop can be purchased for under $200 and comes with a warranty. Over the years I have had personal experience recovering older computers that have been abandoned. In fact, this Dell 745 is on I go off eBay real cheap. But it took a lot of work to GET it back to working condition. I did not save any money doing it myself. Thank you for the reply. Its showing no blown or bulged or leaking caps. I actually could put a refurb board in it, and still only have 175 in it. I picked it up because it had a lot of upgraded aftermarket parts in it. 16gb of Kingston ram, GTX 550 Ti 2 gb video card, big power supply, Sound Blaster, sound card. I originally FIGURED I would pickup an FM2 board and throw all the components in a generic case I have setting. But I SPOTTED the card readers, it has an internal wireless antenna built on to the board too..Allan, sorry, I wasn't quite sure which of the two sections to post in last night, so I chose 'Other'.Not a professional here, but a teacher from school gave me her desktop to fix and she told me it had just stopped working. I PLUGGED it up and all these error messages about Overvoltage came up, when I tried to restart it, it had the same problem as yours, fans spin, but no post beeps. Could this mobo have suffered the same fate?Let me add to what has been said. The likelihood of solidification of specific motherboard component failure is very poor: At best, failure can be divided into groups. http://www.tomshardware.com/forum/302132-31-most-failed-computer-part Capacitor failure has been documented and does not well represent the wide range of failures that might happen.Any of the inte4grated circuits can suffer a breakdown that could be traced to minor manufacturing defects. For example, any weak bond with a metal pin and a plastic body can lead to moisture entering the IC over f a period of time. Especially if the unit is in a high humidity area. This may cause in internal trace to break because of oxidation. There may be not be visible evidence. Sorry, I can't locate a specific article that deals with this kind of problem. The manufactures are aware of these issues, but do not share the information with everybody. Well, much to my surprise, I got this computer running a while ago. I pulled out all the ram and only using one stick, started installing them down the line. No boot in first slot, hit the second slot from cpu and on it came... . So I have two sticks of 4 gb in it now, system properties is showing the 8 gb of ram. So GOING to keep fiddling with it to see if it was a dead slot, or bad ram. I am thinking a dead slot though. Done for the night though. Good find. The rest should be easy. It is not always that easy. I guess I should re-phrase, its a bad slot, due to the fact, I used the same stick of ram going down the line of ram slots. Yes I lucked out. Glad I kept on digging a little more. Next task, will be to do a full system recovery on it. ( already accessed it, then backed out ) Get rid of any gremlins the PO might have had. If I had a windows 7 home premium disc, I would load it and use the product key on the case.There are Anti Virus programs that run on Linux and find malware on a Windows partition. These are called 'bookable AV CDs'You mean "bootable" .... Quote from: patio on March 17, 2015, 10:09:18 AM You mean "bootable" .... Sorry, spell checker wants it to be bookable.Actually, I just fired off the "Factory image Restore" . I will have a fresh start, that way. It had a lot of music files, video stuff. Quote from: Geek-9pm on March 17, 2015, 11:20:25 AM Sorry, spell checker wants it to be bookable. It no longer matters whether your spellcheck works...or not.I appreciate the responses to my question. Reloaded OS, so now to build it back up. thank you

Answer»

I just picked up a known, non working Hp Pavilion, P7 1235, for parts. Pretty nice looking rig, so I thought I would check it out to see what its malfunction was, I feel sure it the motherboard, all fans come on, can hear the hard drive, but have no video from integrated ports or from a known working video card. No beeps.

It has the MSI MS-7778 (Jasmine) motherboard. What goes wrong with the board to cause this, and could it be repaired at home.

I have re-capped several boards with success...so, I would try and take it on, if its possible.

thank youThere is no easy way to know if the capacitors are bad, unless if is visible.
There are other things that make moboss go bad. A mobo can have hundreds of feed thru points trance. Any one could be damaged and not be visible.
Rad this:
http://www.sparepartswarehouse.com/blog/post/common-causes-of-motherboard-failure.aspx
This might suggest one should try these tricks before giving up. That is true. Bu it does not mean most failures can be resolved.
Quote

When a laptop mainboard failure occurs, it is a very labor-intensive task to replace or repair it. One should also weigh the cost of replacement/repair against the cost of a new laptop, as replacing a motherboard is often one of the most costly repairs you can make.

That can apply also to many desktop motherboards. A used reconditioned Desktop can be purchased for under $200 and comes with a warranty.

Over the years I have had personal experience recovering older computers that have been abandoned. In fact, this Dell 745 is on I go off eBay real cheap. But it took a lot of work to GET it back to working condition. I did not save any money doing it myself.
Thank you for the reply.

Its showing no blown or bulged or leaking caps.

I actually could put a refurb board in it, and still only have 175 in it. I picked it up because it had a lot of upgraded aftermarket parts in it. 16gb of Kingston ram, GTX 550 Ti 2 gb video card, big power supply, Sound Blaster, sound card. I originally FIGURED I would pickup an FM2 board and throw all the components in a generic case I have setting.

But I SPOTTED the card readers, it has an internal wireless antenna built on to the board too..Allan, sorry,
I wasn't quite sure which of the two sections to post in last night, so I chose 'Other'.Not a professional here, but a teacher from school gave me her desktop to fix and she told me it had just stopped working. I PLUGGED it up and all these error messages about Overvoltage came up, when I tried to restart it, it had the same problem as yours, fans spin, but no post beeps. Could this mobo have suffered the same fate?Let me add to what has been said. The likelihood of solidification of specific motherboard component failure is very poor:
At best, failure can be divided into groups.
http://www.tomshardware.com/forum/302132-31-most-failed-computer-part
Capacitor failure has been documented and does not well represent the wide range of failures that might happen.Any of the inte4grated circuits can suffer a breakdown that could be traced to minor manufacturing defects. For example, any weak bond with a metal pin and a plastic body can lead to moisture entering the IC over f a period of time. Especially if the unit is in a high humidity area. This may cause in internal trace to break because of oxidation. There may be not be visible evidence.
Sorry, I can't locate a specific article that deals with this kind of problem. The manufactures are aware of these issues, but do not share the information with everybody.

Well, much to my surprise, I got this computer running a while ago. I pulled out all the ram and only using one stick, started installing them down the line. No boot in first slot, hit the second slot from cpu and on it came... . So I have two sticks of 4 gb in it now, system properties is showing the 8 gb of ram. So GOING to keep fiddling with it to see if it was a dead slot, or bad ram. I am thinking a dead slot though.

Done for the night though. Good find. The rest should be easy. It is not always that easy.
I guess I should re-phrase, its a bad slot, due to the fact, I used the same stick of ram going down the line of ram slots.

Yes I lucked out.

Glad I kept on digging a little more.

Next task, will be to do a full system recovery on it. ( already accessed it, then backed out ) Get rid of any gremlins the PO might have had.

If I had a windows 7 home premium disc, I would load it and use the product key on the case.There are Anti Virus programs that run on Linux and find malware on a Windows partition. These are called 'bookable AV CDs'You mean "bootable" .... Quote from: patio on March 17, 2015, 10:09:18 AM

You mean "bootable" ....

Sorry, spell checker wants it to be bookable.Actually, I just fired off the "Factory image Restore" . I will have a fresh start, that way.

It had a lot of music files, video stuff. Quote from: Geek-9pm on March 17, 2015, 11:20:25 AM

Sorry, spell checker wants it to be bookable.

It no longer matters whether your spellcheck works...or not.I appreciate the responses to my question.

Reloaded OS, so now to build it back up.

thank you

Solve : HP motherboard repair question?

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