680i C1 error code

[cozm01]

1. 4gig, posted C1.
2. So I removed 2gig.
3. 2gig posted fine,
4. Flashed p30 to p31.
5. C1 error come back, even though 2 gigs.
6. Reset Cmos, no difference.
7. Removed 1gig, no difference.

What Now?

 

[cozm01]

yes, tried all 4 sticks seperately, different combos. 2 sticks and old, 2 new.