Recently my friend had a problem with his system. The complaint was with the power supply , when turned there is no response in CPU . I removed the SMPS and after inspecting for a while , we found that the problem was with SMPS and we decided to buy new one instead of repairing it.
After connecting the new SMPS I switched on the computer but we found abnormal signs in monitor display , it flicked ,also many dots and vertical line were seen in the display. Ignoring that we proceeded but unable to boot in all modes including safe mode.
We once again checked for all connections and again restarted the system but there was no use.
So we decided to install new XP but that too ended in vain. While booting from cd we had the following error Setupdd.sys Could Not Be Loaded Error Code 4 , we found out that the problem was with RAM and I removed it and cleaned it after inserting ,same problem occured, so we replaced it with new RAM now system works fine.
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