I have a 1st Generation MacPro 2.66ghz Quad with 3GB of memory (4x512mb CTO) plus an additional 2x512mb
RISER CARD A: 4x512 (2xfactory & 2xOther Apple Memory)
RISER CARD B: 2x512 (Factory)
Sometimes the top riser card will flash a red light (solid) i then pulled the ram and sometimes it will still show a solid red light and when i pulled them switched them it would appear then disapper on occasion
i ran the apple ahrdware test a few times in loop mode; here is the only error i got:
http://img294.imageshack.us/img294/5364/mpramerrorfd9.png
4MEM/42/40000001: B: 1 C: 1 R:0
all the sticks of ram were from Apple, the additional sticks of ram i purchased from a friend who was upgrading his macpro and they were working flawlessly since October 2007 (macpro was purchased in feb 2007)
I recently relocated and started right when i first got my new location set up, nothing was damaged in the transfer as far as i know the macpro was solidly packed as if it were originally sent and nothing on it or bumped into it.
im not sure if its a riser card or memory.
upon apple hardware tests it does detect all 3gb of memory but gives methat random error.
ive only had 3 BSODS and 2 Kernal panics since ive had this machine.
anytips or help would be appreciated

RISER CARD A: 4x512 (2xfactory & 2xOther Apple Memory)
RISER CARD B: 2x512 (Factory)
Sometimes the top riser card will flash a red light (solid) i then pulled the ram and sometimes it will still show a solid red light and when i pulled them switched them it would appear then disapper on occasion
i ran the apple ahrdware test a few times in loop mode; here is the only error i got:
http://img294.imageshack.us/img294/5364/mpramerrorfd9.png
4MEM/42/40000001: B: 1 C: 1 R:0
all the sticks of ram were from Apple, the additional sticks of ram i purchased from a friend who was upgrading his macpro and they were working flawlessly since October 2007 (macpro was purchased in feb 2007)
I recently relocated and started right when i first got my new location set up, nothing was damaged in the transfer as far as i know the macpro was solidly packed as if it were originally sent and nothing on it or bumped into it.
im not sure if its a riser card or memory.
upon apple hardware tests it does detect all 3gb of memory but gives methat random error.
ive only had 3 BSODS and 2 Kernal panics since ive had this machine.
anytips or help would be appreciated