RAM issues:4GB only 3 usable

[Daniel]

Hi all!I have a mother board GA-945GCM-S2L running on Windows 7 Ultimate 64 bit,ATI Radeon HD 545.I updated the BIOS at the version F8d (the last) and i didnt find nothnig about memory mapping or something like that.With Cpu-z,Ccleaner it say i have 4GB ram in dual channel BUT in Bios or System Proprieties i see only 3GB.
Any solution?
Thx in advance !!

[Dark Mantis]

Hi

Firstly are the programs you are using the latest versions ? It is important to keep them up to date otherwise errors can be reported. If theyt are then you need to check theat everything is installed properly and maybe run Memtest98 with one stick at a time to test the memory. Ten cycles on each stick is best.