SSD cache drive compatability?

[Dicky-Art]

I want a quickish system and thought a 120GB SSD for 1st drive OS
2nd drive a 2TB HDD vid and audio
BUT
for SSD cache drive Intel 313 series
nowthen!?
Do I need the SSD cache drive or can the 120GB 1st drive be used for this?

Processor (CPU)
Intel® Core™i7 Quad Core Processor i7-3770K (3.5GHz) 8MB Cache
Motherboard
ASUS® P8Z77-V LX: USB 3.0, SATA 6GBs, ATI®CrossFireX
Memory (RAM)
16GB KINGSTON HYPER-X GENESIS DUAL-DDR3 1600MHz, X.M.P (4 x 4GB KIT)
Graphics Card
2GB NVIDIA GEFORCE GTX 660 - DVI, HDMI, VGA - 3D Vision Ready
Memory - 1st Hard Disk
120GB KINGSTON HYPERX 3K SSD, SATA 6 Gb/s (upto 555MB/sR | 510MB/sW)
2nd Hard Disk
2TB 3.5" SATA-III 6GB/s HDD 7200RPM 64MB CACHE
SSD CACHE DRIVE
20GB INTEL® SSD 313 SERIES - SLC CACHE DRIVE FOR SYSTEM / 1st HDD
Operating System
Genuine Windows 7 Professional 64 Bit w/SP1

 

[keynes]

If you have the SSD as your primary drive you wouldn't need a cache drive.

 

[vanthus]

An SSD cache drive Is mainly used along with an HDD as a cache for frequently accessed data on the OS drive only,making it 4X faster than an HDD-only system.
As you selected an SSD drive for your OS,an SSD cache drive wont improve anything.

 

[Dicky-Art]

Thanks for the advice! Should save myself a bit of cash then.
Cheers