techPowerUp! posted a review on the ASRock 775XFire-eSATA2 motherboard

ASRock is a subsidiary of ASUS and manufactures low-cost motherboards. The ASRock 775XFire-eSATA2 for Intel Socket LGA775 is based on Intel's i945 chipset and can run ATI Crossfire. Due to a lack of PCI-E lanes in the Intel chipset this is only possible in x16/x4, but this board costs only USD 80.

ASRock 775XFire-eSATA2 Review