Problem with seagate sata-3 ST2000DL003, hiachi sata-3 7K1000.D HDS721010DLE630

Hello.

Having trouble installing FreeBSD 8,2 on the following configuration:
MB Gigabyte GA-Z68A-D3H-B3
Intel i5-2300
16G RAM
HDDs:
Seagate SATA-3 LP5900 ST2000DL003 - 2 pcs. (in RAID 1 Intel matrix)
Hiachi SATA-3 7K1000.D HDS721010DLE630 - 2 pcs.(in RAID 1 Intel matrix)
All components were tested.
When you install during partitioning observed periodic process of sticking a markup.

Then when you copy data from the installation disk copy of the data, then copy the stops, and the HDD light stays on - the system that something writes.

Then another piece of data - write - wait (but the HDD is something written). And so over the cycle.
Installing the base system in this mode "jerking" takes about an hour.

Then when you run some like portsnap extract - after that, it is impossible not to go to ssh, or perform the simplest of cat and ls.
Nothing happens until the system appends a cache to disk and then processes the commands.

One gets the impression that FreeBSD does not work properly with these HDD.
Tried all the options (RAID, single disk, AHCI on / off, etc) the result is the same.

Replaced the HDD of the same manufacturers, but the old type SATA-2 - all works fine.

If someone has encountered this situation - look forward to ways of possible solutions.
 
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