In this section, we will get to have a guide for repair a dead desktop. how to repair a dead desktop? is one of the most asked questions asked by newcomers in the laptop/desktop repair industry.
There are different steps we can check for a guide to repair a dead desktop.
Step 1. Check #VSB Supply Coming On SIO for repairing motherboard
Firstly check whether the 3 VSB supply is getting reached to SIO. If it is not coming then check whether 5volt coming from SMPS purple wire. If not then check SMPS, or there is a possibility is that the 3volt regulator is bad.
Step 2. Check whether the RSMRST signal is coming on SIO for the dead motherboard
Secondly, if the 3VSB supply is coming on SIO Pin then check whether the RSMRST signal is coming on SIO. If it’s not coming then there is SIO of your computer is bad.
Step 3. RTC Clock On PCH on a desktop motherboard
In the third step for dead desktop repair checking and repair check for RTC clock signal is coming on SIO. If it is not coming then replace and check the 32.7khz crystal. IF even if the RTC clock signal is not coming then Replace PCH.
Step 4. Check RTCRST SIgnal
Check there the RTCRST signal is coming as the RTCRST signal is very important in desktop repairing check. RSMRST stands for ResumeReset Signal.
Step 5. SLP_S3 (SUSB) is coming on SIO
SLP_S3 stands for Sleep S3 signal. It is important to signal for the desktop to work. Check where it is coming from on the SIO pin. If it is not coming check the DPWROK signal to PCH. Then, If it is coming then replace PCH. Finally, If it’s not coming then replace SIO.
Step 6. PSON Signal Going To SMPS on a desktop motherboard
Even if the SLP_S3 signal is coming properly and the desktop is not starting then check for the PSON signal. Check whether the PSON signal is going to SMPS. If it is not going to SPMS replace SIO.
Step 7. Replace SMPS
Finally, if nothing works from the previous steps then replace SMPS. This is the final step of repairing a dead desktop repairing.
Learning Further For Chip Level Repairing
There is a basic guide for desktop repairing guide and some schematics diagrams available which you can use to trace the current flow.
Also, you can do repairing for laptop motherboard for basic repair and advance /chip level repair.
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