Why after reboot, the PC does not see the SSD drive?

Question

Solid State Drives

There is a stationary PC. It has a 120Gb SSD and a 1Tb HDD. After checking the PC with 360 Total Security antivirus, the PC does not see the SSD after reboot until you plug the SATA cable into another SATA connector on the motherboard and reboot again. As soon as you use the computer - turn it off - start it again - again there is no SSD. Again you climb into the system unit, pull out the SATA cable from the connector and connect it to any free one (and there are 6 of them on the motherboard) - restart the PC again - Windows has booted. As if some settings are being reset. The SSD menu is not displayed in the Boot menu, neither in the BIOS. What is the problem - I will not put my mind to it. ALL pieces of iron in the computer are new. Without any damage. Cable integrity 100%. I assembled the PC myself from NEW pieces of iron. Everything worked flawlessly for a month.
Motherboard: ASUS M5A78L-M PLUS/USB3
SSD: AMD Radeon R3 R3SL120G 120GB
Hard drive: TOSHIBA P300 HDWD110UZSVA

Answer 1

Dumbly replace the SSD SATA cable and power it from a different power connector.
Well, that's it, the Chinese cable worked for a month, somewhere something went off and oxidized ... When poked, it is restored.

Answer 2

I encountered such a problem, a cheap SSD was to blame (and yes, it was new :().