shintai reckons that 32 bit vista can use all 4gb of ram (i think?). some other guy said "theo wasn't sure if it was tri-fire". and someone else thinks HD 2900s use 256mb of system memory.

so, the system was running tri-fire, with 4gb memory detected, and each 2900 using 256mb. usable memory = 3.24gb. plausible?