partitioning - windows 8 and 0x84 partition

I have a Samsung serie9 (ultrabook NP900X4C-A01IT). I have just one 256GB SSD divided in 4 primary partitions. The OS is Windows 8. No UEFI bios enabled and no GPT partitioning.

I wish to install Ubuntu 12.10 in dual boot with windows 8 and I need a free primary partition (eventually to transform in extended partition for Ubuntu)

The partitions now are:

1. 100 MB active, boot,system partition , NTFS ,0x27 (windows 8)


2. 200 GB active, system partition , NTFS, 0x27(windows 8)


3. 0x84 partition , not formatted (all zeroes on the surface) , OEM? Hibernate?.I don't know....What is it?


4. 30 GB PQ_SERVICE partition , 0x27.

I wish to delete the 3) partition...the 0x84...and to shrink the others.

What is that 0x84 partition? Is it a OEM partition?
And what is an OEM partition?

Is it an Hibernate partition?
I' dont believe because I have my "hiberfil.sys" file in c:\ as it should be.

Do I need it?

P.S.= I can't use GPT partitioning according to some linux distributions, and I wish not.