Ram upgrading problem

[Striker051]

Hi guys. I need your help. I'm trying to upgrade my old dell computer. I'm currently running on intel i5-650, q57 mobo and 8GB(4GBx2) DDR3 1333MHz Kingston ram and trying to upgrade my ram. But i'm facing few questions.
1. Can i run with 4 rams? On internet if i'm not mistaken it says my cpu can support just 2 channel.
2. What if i use different brand than kingston?
3. Which spec is important? Speed(like 1333MHz) or capacity?

 

[Lutfij]

Is it possible to pass on the SKU for your Dell prebuilt or even the model number for the motherboard? If at all possible a picture of the motherboard would help out.

Technically any brand of ram will go into the slots on your motherboard but when we're talking about ram upgrades it's best practice to upgrade the rams using a kit/ matched pair to avoid and compatibility issues. Look at ram as you would when buying a pair of shoes. You won't find anyone(save a few places) where people/stores sell you one out of a pair, even if you lost one shoe, you end up buying a new pair, correct? Similarly, to avoid issue with ram manufacturing and timings it's good to buy the exact same stick of ram or better yet, go for a kit.

Unfortunately the Q57 chipset doesn't allow for speeds in excess of 1333MHz, so even if you got a good deal on a kit off of Ebay that is higher than 1333MHz, the kit would run at 1333MHz effectively.

 

[SgtScream]

You can use this crucial website to find details on upgrading your memory:
http://www.crucial.com/usa/en/compatible-upgrade-for/Intel/dq57tm
Double-check the make and model regarding the link above.