Hi, the first thing I would do is check that the card works fione on another board.
Also when it gets stuck on the Intel screen, is there a POST code at all?
Sorry, forgot to mention the card works fine with a MSI IM-Q35 motherboard (Q35 chipset) but not with an Intel DQ35 motherboard. The only keys function when stuck on the Intel screen are Ctl+Alt+Del. Other keys pressed only retun a beep sound. I also have another server with identical hardware and it also can not go pass the logo screen.
I've got the exact same problem with a DQ35JO. It's a Core2 Duo 3GHz with 8GB Kingston DDR2 800 RAM and RAID 5. BIOS version is 'JOQ3510J.86A.1109.2009.0716.0319'.
Same story: if I put the card in, it freezes on the BIOS splash screen. If I remove the card, the system boots and works fine. I tried swapping which slot it was in too, but it doesn't work in either.
I ended up installing an Intel gigabit card and has been working with no problem.
Absolutely same problem after install TP-LINK TG-3468 - computer froze in BIOS on EB (Calling Legacy Option ROM)
I have board Intel DG33TL with legacy updated BIOS. Some idea? grrrrr