主板的通病维修 集合（Motherboard common maintenance set）.docVIP

主板的通病维修 集合（Motherboard common maintenance set） Motherboard common maintenance set Feel this should be helpful for everyone to repair, turn to share with you! Hope to be useful to everyone... 1. brand models: 815EPT (long red plate) GML The repair of Internet cafes about dozens of blocks, USB power supply problems, plug USB devices are easy to burn, the probability of 50%, the Internet of the one hundred machines, now about fifty or sixty Taiwan I changed the USB, and the BIOS circuit board is easy to leakage, is generally a problem with more than half a year, to boot, a measuring BIOS battery, change after the fault is more frequent, after one or two months or not, only the maintenance of BIOS circuit, the diode to replace it. 2.MS-6566 Brand models: MS6566845 series motherboard (MSI), This board CPU block extremely easy to empty welding, the probability accounts for 70%, the phenomenon is on the false load test point normal, on the CPU, however, show CO or FF, remove the fan, boot with hand pressure CPU, go yards! The majority of CPU empty solder, a few Beiqiao! This kind of board heart is more convincing in flying, ha ha! 3. ONDA 845 series motherboards Brand model: ONDA 845PE, blue board This board used for a period of time, about a year or so, there will be a serious problem, whether your power is good, it is very easy to the main power supply capacitor drum kit, then Q1 is easy to breakdown, then remember, must first measure the Beiqiao wear didnt wear this board before repair, I have taken more than 30, only to Q1 short, short circuit caused by 12V power protection, then Beiqiao will wear, some friends told Q1 not to burn the breakdown of Beiqiao, I want to say is, in the 845 series of the motherboard, Beiqiao needs three groups of power supply, including a group of CPU main power supply, Q1 output Q1 12V CPU, short circuit, main power supply at the same time in Beiqiao, Beiqiao at this time in my hands for at least 100% breakdown, the ONDA 845 series motherbo