New disc, a lot of errors in event log?


I have a new Western Digital RED (WDC WD30EFRX-68AX9NO (IDE)) 3 TB SATA discdrive on a Marvel controller in my Windows 8 64 bits environment.

Already from the beginning I was getting these in the event viewer : 

The IO operation at logical block address 0xe96f30f8 for Disk 1 (PDO name: \Device\00000034) was retried.

 This have been getting worse, now the the disc has about 700 GB free space and these errors is everywhere in the system log!? When moving files to this disc it will start off fast but after a short wile it will go down to 0 kb / sec and nothing will work in Windows!?

I have runned the WD diagnostics, even the extended text without any problems!? What should I do?

The motherboard is a Asus P8Z68-V PRO GEN3.

Replaced the SATA cabel and all works fine again.