Recently my computer became unstable. First a SATA port failed. When I connect a HDD to that port the case speaker beeps like crazy, and I have no idea why. These "beeps" are made after windows is loaded, not during POST, so I don't know what happens.
For a long time, I burned DVD using a SATA to USB adapter because there are not enough SATA ports in my mainboard. Everything worked good, until recently when I started to get a lot of errors
Failed to Write Sectors xxxxxx - xxxxxx - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32)
The strangest thing is that I can burn 4-5 DVD with no errors, then suddenly these errors appear. When verifying the burned disc (ImgBurn Verify mode --> Verify Against Image File) there are no errors, so I assume that the disc was written correctly.
To exclude a overheating problem, I put a 12 cm fan over the adapter, to keep it cool, but it didn't solve.
These errors appear only when using that specific SATA to USB adapter. I tried different drives and different media, but errors are still there.
If the adapter is damaged, errors should be always present. I tried to connect the adapter to different USB ports, but errors are still there, so I'm assuming that the mainboard is not faulty.
Any idea what can be the problem?