The fans are rotating, the power supply had been replaced but didnt help.
3 capisitores near by the separate 12vdc connectore been replaced due to
there bad looking, but still no good, also bios battery been taken out.
nothing get even warmup.
is it the processor or mother board?
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Re: that mother board want reboot
Lets say it like this...you have assambled..on table...motherboard..,processor,memory hard drive...all conected to teh monitor (you have video on board) and to the power suply. If you get the power in a board with a damaged processor...the board receive energy and ,depending of the problems of the processor..youl see a blu screen on monitor..or just hear some pcspeaker specific sounds..ussualy the msi mainboards come with a special feature called D bracket..it has some leds on it and indicates your problems... however..if you have other problems than blue screen or sounds..and the board is totally silent..well it is a board fault...and here..the reasons of malfunctioning are a lot..
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The fan is a brushless fan and very reliable but they do go wrong check to see if you have the supply to the fan assembly there are usually three wires two are the supply the other is the speed control wire tacho run the fan on a separate supply and see if the fan runs before you start checking the voltage on the mother board first.The most common fan for failure is the exhaust fan or heat output fan because it is always mounted near the lamp assembly and bearings do not like heat
That problem is usually have 2 causes..Its either power supply board or main board..
Please take this steps on how to determine the problem: 1. Open the back cover. 2. Check the power supply output...It should have 5vdc for the main board..12vdc or 16vdc for the audio and 24vdc for the back-light inverter.. 3. If those 3 voltage supplies have encountered voltage drop...The problem could be on power supply board.. 4. If the power supply output is normal..The problem could be on the main board... 5. If the problem is power supply you should check if the capacitors are bulged on the top and try to replaced it..If you can't do that you can purchased new power supply board.. 6. If the problem is on main board there is no D.I.Y repair on that so you need to buy a new main board that fits to your TV.. Hope this solution will be helpful..
did you check the power supply if it is working?.look for the exhaust fan if it is rotating. then look at the mother board if the fan at the processor is also rotating if not check the supply first at the PSU if ok.
ELECTRIC SHOK OR IMPROPER EARTHING IS DAMAGE POWER SUPPLY,MOTHERBOARD,PROCESSOR,RAM
HOW TO CHECK IT.
(WHEN CHECKING KEEP CAUTION :- REMOVE HARD DISK DRIVE POWER SUPPLY SOCKET)
1. check power supply watt 400/450 and same another power supply install and check it. if power supply change and system is working ok so problem in your power supply.
2. check CMOS cell on motherboard,(3 volt)
3. Bfore power supply changing check on mother board any capasitor is like as damaged or not.
OR check main chipset ic is marked as intel.whenpower on it is very hitting or
normal)if very hitting require to repair your motherboard.(intel chipset ic near cmos cell or pci slot,)
4. checking of ram on other pc (working or not)(one beeps coming or not,if one beep coming ram is working ok)