When NVIDIA announced support
for SLI on motherboards sporting Intel's X58 chipset, there was something of a hidden catch -- manufacturers needed to pay to become "certified." Yes, you might have thought all you needed was a pair of parallel PCI-E slots and couple of matching video cards to get your SLI on, but non-certified boards find themselves shunned by NVIDIA graphics hardware. However, where there's a will there's usually a way, and for at least one of those woefully illegitimate mobos there's a workaround. GIGABYTE didn't bother to get certification for its EX58-UD4 motherboard, but it did for the EX58-UD4P, and it turns out the same BIOS works on both. Naturally it takes a little extra work to get the wrong version up in the right EEPROM, but the read link has all the details you need to re-flash with finesse.