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PC loading programs slower than normal after voltage change [closed]

I always turned on my PC at 220V, it always worked normally. Today I turned my PC at 110V and it was very slow to load any program. I turned it back on at 220V but it is still very low to load ...
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HDD is very slow after voltage drop

The HDD is Seagate Barracuda 7200.7 160 Gbytes Model ST3160023A. Of course it is not SATA. I once connected it to the USB via special adapter IDE-to-USB, and a separate power unit. The voltage drop ...