Don’t know about the ‘Intel 82571GB Gigabit Controllers’, they don’t list the PT on the support list, only the MT, maybe someone who has used this card before can chime in.
I recommend reconsideration the hard drive, thats a weak link that can/will fail. Do you need the storage space for something? I like using Transcend Flash IDE Solid State Disks, they come in all sizes from 256mb to 8gb. The OS only needs 64mb. I usually get the 512mb size. If you need larger they have the 2gb ($56), 4gb ($96), or 8gb. Less likely to fail than a spinning hard drive and generates no heat.
I will verify the function of Intel EXPI9404PT with MT ROS v3; as support was added when I requested it. If you check the change log it was added in 3.0rc6. We have several in full time service without any known issues in Dell PowerEdge 860 systems. If I remember correctly the EXPI9404PTBLK is the bulk pack version of the card.
I also recommend using a flash drive instead of a standard HDD with moving parts. I’d go with a CF-SATA adapter.
Lately we’ve been using Addonics CF adapters with great success.
They have several IDE and SATA versions available; with many internal and external mounting options. http://www.addonics.com/