SSD detected by BIOS, but not OS

[Justa Lol]

my SSD suddenly stopped working. my BIOS will detect the SSD as "3.0 GBps device" but in windows or ubuntu, it won't show up anywhere that I've looked so far, disk manager in windows and fdisk -l on ubuntu.

I'm not sure what information I'm supposed to give, so please do ask.

It is a Corsair Force Series GT 120GB. (CSSD-F120GBGT-BK)

EDIT:


I have a 2 TB HDD as secondary for storage, right now I'm using a 250 GB HDD as primary. i use a 16 GB USB to load ubuntu. I'm actually not sure what all this means:

root@ubuntu:~# fdisk -l

Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x4a3f74ed

Device Boot Start End Blocks Id System
/dev/sdb1 63 3907027119 1953513528+ 42 SFS
Partition 1 does not start on physical sector boundary.

Disk /dev/sda: 250.0 GB, 250000000000 bytes
255 heads, 63 sectors/track, 30394 cylinders, total 488281250 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000e529e

Device Boot Start End Blocks Id System
/dev/sda1 * 2048 488278015 244137984 7 HPFS/NTFS/exFAT

Disk /dev/sdc: 16.4 GB, 16355688448 bytes
19 heads, 50 sectors/track, 33626 cylinders, total 31944704 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0d777b9e

Device Boot Start End Blocks Id System
/dev/sdc1 * 8192 31944703 15968256 c W95 FAT32 (LBA)