I came across this article that I found interesting as well

http://www.hardwarecanucks.com/forum...review-22.html

DFI Motherboard Owners….Take Note

Unfortunately it has come to our attention that the fix listed below is not working for some people while others have claimed it worked. Thus, until we have either heard from DFI regarding this issue or the community is given a fix we are recommending you AVOID DFI X38 and X48 motherboards if you intend to buy this card.

You may not believe it but we had much, much more planned for this review but unfortunately our DFI motherboard conspired to haunt us again and again. Other than the fact that our LanParty DK X38 T2R decided to mysteriously give up on our very slight memory overclock, it refused to cooperate when we installed the HD4870 X2 into it. An ASUS X48 P5E Deluxe worked without a hitch, as did a Gigabyte EP35 and ASUS P5Q Pro so we knew it wasn’t the chipset and had read of these same things happening to owners of the HD3870 X2 when pairing that card up with certain DFI boards.

Basically, what happened was that we installed it into the board and a BIOS splash screen would not display even though the LED indicators told us everything was booting fine. There just wasn’t any video signal coming through the card so we somehow deduced that there was an issue with the X2’s display output. Well, we popped in the second HD4870 X2 card and lo and behold, had the same issue. Somewhere within the ensuing flurry of BIOS flashes, the motherboard decided enough was enough and finally died leaving us without a board and an approaching deadline.

To cut a long story short, we brought in another DK X38 T2R along with a beastly LanParty LT X48 T2R and found both new boards to have the same video display issue so we immediately knew that it was the board itself and not the card. After searching through the DFI Beta site, a BIOS was found that completely resolved the problem with the incompatibility between the motherboard and the HD4870 X2.

At this time we have only experienced problems with DFI’s X48 and X38 boards. The P35 and P45 series seem to be fine but if you are having problems with either of these chipsets, please post in our HD4870 X2 comment thread and we will try to sort things out.

Below we have listed the motherboards which may be affected by this problem as well as links to their corresponding Beta BIOS pages. You should use the most recent BIOS file we indicate or the latest one available.

LANPARTY DK X38-T2R: X38D725

LANPARTY DK X38-T2RB: X38D7251

LANPARTY DK X48-T2RS: X48DD725

LANPARTY LT X38-T2R: X38AD725

LANPARTY LT X48-T2R: X48AD725

LANPARTY LT X48-T3RS: X48GD725

LANPARTY UT X48-T2R: X48CD725

LANPARTY UT X48-T3RS: X48BD725

If your motherboard is not listed here, please visit the main page to the DFI beta BIOS site and look for your motherboard in the drop-down menu.

Use beta BIOS at your own risk..they are Betas for a reason folks.

The main problem we can see with this is that if you are building a new computer and do not have access to another graphics card, you will be in a fair bit of trouble. This is because you will have no way to update the BIOS if you can’t get a video signal. So, we recommend that if you are planning on buying a DFI board and the HD4870 X2 that you buy a cheap PCI-E graphics card just in case you have the display problem that seems to pop up on these boards. On the other hand, if you are upgrading to the HD4870 X2, you should update your BIOS before installing your new card.