Urgent: Can I use 2 RAMs of different speed?

• Fire Star

  9 Mar 07, 15:07

  Can I use a RAM running at 333mhz with another running at 533mhz? What if one is 256mb and another 512mb?
• Fire Star

  9 Mar 07, 15:10

  I mean in a laptop of 2 slots?
• ndmmxiaomayi

  9 Mar 07, 15:34

  Generally, RAMs of different speeds MAY BE used together. If it is possible, your motherboard will automatically fall back on the slowest speed available.
  
  You will need to find out your motherboard's model and the type of RAM it supports before using RAMs of different speeds.
  
  RAMs of different sizes can be used together, provided that they are of the same type.
  
  If you have your motherboard's manual with you, read through it. Otherwise, download CPU-Z. It will tell you your hardware configuration.