Single CPU and a number of power supply diagram 不指定
mahmoud
Single CPU and a number of power supply diagram 不指定
1, single power supply diagram
2, a number of power supply diagram
Note: Figure in the Q1, Q2 a lot of motherboards for the field control, a number of power supply in a group of Q1Q2 make a bad CPU is not working properly, causing restarts fault, if there is a group of abnormal, small power IC damaged more; bad a group of other two groups may heat large, one by one demolition troubleshooting
3, a number of power role
A number of groups of single power supply is in parallel can increase the stability of power (current), a number of power can be an average load, the average heat; current is likely to cause smaller CPU heat, job insecurity
4, identifying a number of power supply
By the number of coil inductance on the motherboard to identify, single power supply two inductance coils, two power supply three inductance coils, three-phase power supply inductor coil 4
5, fault phenomenon
Most of the main power supply filter capacitor leakage bulge; 12V-to-ground short circuit, there is the phenomenon of power protection, CPU power supply to ground short-circuit test points, the normal value when the test point on Earth for more than 30, combined with CPU after the land value may be 20 about. Failure phenomena may be made by the breakdown Q2, Northbridge bad (80%)
3, a number of power role
A number of groups of single power supply is in parallel can increase the stability of power (current), a number of power can be an average load, the average heat; current is likely to cause smaller CPU heat, job insecurity
4, identifying a number of power supply
By the number of coil inductance on the motherboard to identify, single power supply two inductance coils, two power supply three inductance coils, three-phase power supply inductor coil 4
5, fault phenomenon
Most of the main power supply filter capacitor leakage bulge; 12V-to-ground short circuit, there is the phenomenon of power protection, CPU power supply to ground short-circuit test points, the normal value when the test point on Earth for more than 30, combined with CPU after the land value may be 20 about. Failure phenomena may be made by the breakdown Q2, Northbridge bad (80%)
Author:Computer repair enthusiasts@Computer repair enthusiasts
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Address:http://www.itstrip.cn/read.php?162
All rights reserved. Must be reproduced in the form of annotated links the author and the original source and this statement!
