I have a dell inspiron 580 currently 3 used slots out of 4. 2 gb x 3. So one slot left and i'm planning to install an additional 4 gb of ram:
Samsung CAS latency:both 6-7-8-9
Mushking CAS latency: 6-8-9
Kllisre CAS Latency: 1333MHz=CL9 1600MHz=CL11
Kllisre Memory Timing 1333MHz=9-9-9-24 1600MHz=11-11-11-28
Samsung CAS latency:both 6-7-8-9
Mushking CAS latency: 6-8-9
Kllisre CAS Latency: 1333MHz=CL9 1600MHz=CL11
Kllisre Memory Timing 1333MHz=9-9-9-24 1600MHz=11-11-11-28