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Intel Extreme Series DX48BT2

X48 Motherboard Comparison, Part 2

Who would know a chipset better than the manufacturer? No longer simply a key player in OEM circles, Intel’s branded parts have been creeping into enthusiast markets for a few years. Will their better understanding of the underlying technology help them take the leadership role away from market partners?

x48 motherboard comparison

Layout and Features

Anyone who didn’t think that Elitegroup’s black treatment went far enough should love Intel’s DX48BT2, with barely a scattering of white, blue and silver to lighten up the otherwise serious looking part.

x48 motherboard comparison

Anyone who thinks that ASRock’s lack of heat pipes was a poor compromise towards lower cost might be shocked to see that Intel itself sees no need for such luxuries. Unlike lower-cost parts, however, Intel covers all of its CPU VRM MOSFET’s with sinks. Our apologies for the alphabet soup that made up the last comment.

The DX48BT2 provides the usual “two- -and-an-eighth” PCI Express 2.0 x16 slots, since the third slot is handicapped by both first-revision PCI-Express transfers and a maximum of four pathways. Unlike its partner brands, Intel has designed its board to assure that all four PCI-Express 1.0 pathways are available to the third slot at all times. That third slot might not be worthy of a gaming graphics card, but it’s certainly fast enough for most other duties.

Intel chipsets may no longer support Ultra ATA drives, but that didn’t keep the company from putting a connector on its board by way of a third-party controller. The Ultra ATA connector is ideally located in the top front corner, making it easy for cables to reach the top bays of even the tallest of “ordinary” cases. Likewise, ATX/EPS and ATX12V/EPS12V power connectors are within easy reach of top-mounted power supplies.

The DIMM slots are located relatively low on the DX48BT2, so removing memory with a graphics card installed is a little tedious. And if that graphics card happens to be super-sized, its cooler might also block the first Serial ATA port.

Intel has in fact moved the CPU, Northbridge and memory slots as a group away from the top edge of the board, which limits the number of expansion slots to six. There are no PCI-Express x1 slots, but the third x16 slot will support x1 cards nicely.

x48 motherboard comparison

A power button is located on the DX48BT2’s bottom edge, making bench testing easy. Next to it is Intel’s traditional BIOS blocking jumper, which can be enabled from within BIOS to prevent average users from accessing BIOS without opening the case. To the left of the power button are Consumer Infrared Transmitter and Receiver device headers.

There is no floppy header in the DX48BT2, so Windows XP users who would like to install their OS on a RAID array must either slipstream the drivers onto a copy of their CD or use a USB floppy drive to install them at the F6 prompt. Intel is likely looking ahead into the not-to-distant future when XP is no longer available through standard channels.

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