Quick one really.
My desktop which I built four years ago now, has OCZ Vista Upgrade Gold Series 4GB (2 X 2GB) PC2-5400C5 Dual Channel DDR2 ram in it running on a Gigabyte GA-P35-DS3R DDR2 motherboard.
I would like to up the ram to 8GB but can't see any PC2-5400C5 ram available on the overlockers retail site.
So.... can I use PC2-5300C4/C5 or PC2-6400C5/C6 or PC2-8500C5 and what might the implications (if any) be?
Advice gratefully received!

My desktop which I built four years ago now, has OCZ Vista Upgrade Gold Series 4GB (2 X 2GB) PC2-5400C5 Dual Channel DDR2 ram in it running on a Gigabyte GA-P35-DS3R DDR2 motherboard.
I would like to up the ram to 8GB but can't see any PC2-5400C5 ram available on the overlockers retail site.
So.... can I use PC2-5300C4/C5 or PC2-6400C5/C6 or PC2-8500C5 and what might the implications (if any) be?
Advice gratefully received!
