Can't Format SSD

I have a custom built PC. Running windows 8.1 pro. Asus z87-k. haswell i5. 16GB corsair Ram.
Hi, I have a 40GB corsair SSD. I used it once for a few days but I upgraded to a 240GB. I put the 40GB away and now I want to use it for something else.
I had my OS on the 240 but I did an update and drivers weren't available (I was using windows technical preview) (Windows 10) So I used in an old 120 gig Sata hard drive and put windows 8 on it to do my testing until I get things working.
When I plug it in my computer via sata cable nothing would show up, even though it always used to. So I put my motherboard in ACHI mode. Now it shows up (sometimes). Sometimes after going into properties in disk management, it will disappear and I have to
restart my PC. It doesn't always show up too. I'm using windows disk manager to manage it by the way.
It says the file system is RAW. I've read about this a bit and I know this isn't good. All I want to do is format the ssd and be able to use it again. I don't have any data on it so I don't care what happens to it I just want to use it again.
I've also tried diskpart in an elevated command prompt. Still nothing.
Any help would be appreciated I hope I gave enough info, thanks.

Drive Partition and Format
1. Open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area.  If it does not say "Verified" then the drive is failing or has failed and will need replacing.  SMART info will not be reported  on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Apply button and wait until the process has completed.

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    If you have any feedback on our support, please send to [email protected]

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