Question about Dual-Channel ram, Crucial, A-Data ?

RICKDICK69

Honorable
Jan 17, 2014
4
0
10,510
Hello, i am upgrading a little my old computer and I think of adding ram too, problem is I have 2 dual channel slots(4 slots in total) for ram.
MY MB - Gigabyte p35-s3g
Now I have installed 2gb kingston ram at slot 1 and ocz 1 gb ram in slot 3
So I have 2 more free slots.

As I understand I need the same memory, speed, bus rams to work at dual channel, brand mixing theoretically shall not be a problem as far as specs fit and MB do not refuse it.

So I think what would be better ?
Putting single 2gb ram and possibly trying to risk making it go dual channel with my current 2gb ram or just buy 2x 1gb rams to fill in empty places knowing it will definitely go together ?
Will it cause any problem if I have 2x 2gb rams what do not go together as dual channel ?
For example I buy 2gb ram and I have 2x2gb and 1x 1gb.

For now I am looking at :

Crucial, 2GB, 240-pin DIMM, DDR2 PC2-6400 800MHz ram for 26 euros
A-DATA DDR2 2GB 240-pin DIMM 800MHz ram for 30 euros
Transcend DDR2 2GB 800MHz JM800QLU-2G for 24 euros
Corsair 2GB, 667MHz DDR2, non-ECC CL5 SODIMM for 28 euros
Generally looking 2x1gb ram result in same or little higher price if taking a-data ddr2 1gb ram.
There are some cheap Komputerbay rams at amazon, but I heard some bad bad reviews for them.

As I know corsair is pretty good ram, not sure about the rest.

I do not want to buy something too expensive too, because in a year I plan on changing MB, processor and the most of remaining things in my pc. For now better RAM is just temporary solution to get rid of bottleneck my current 3gb ram is, I am sure even with upgrading it to 5gb it will be much better.
 
Rams golden rules
1) least amount of sticks of ram
2) most matched pairs of ram

Generally dont mix different brands and models of ram that's just asking for trouble especially in dual channel

Ram purchase - make sure your buying DESKTOP ram not LAPTOP (SODIMM) ram

Personally i would stick with good old cheap standard Kingston ram - cheap reliable compatible, it just works

Also the difference between 3gb and 5gb of ram will be next to nothing, and 3gb/5gb is NOT dual channel

You are running a 64 bit install right? and please dont tell me your running Windows XP...
 

RICKDICK69

Honorable
Jan 17, 2014
4
0
10,510
I know that 1gb and 2gb will not run as dual channel.
I think I will better try to find pair for my 2gb kingston and leave the remaining 1gb in other slot channel .
Getting the same kingston one as I have already will clear all compatibility problems with current kingston ram. Price difference is really small too.

p.s
The reason I now have 3gb of ram is because some time ago I had only 2gb (2x1gb dual channel), then one failed, so I replaced it with 2gb one, had no problems with that configuration so now when upgrading I am not getting 4gb, but I am getting 5.
So basically this upgrade is from 2gb to 4gb while having 1gb as bonus in other slot, in worst case I may get discounted another fitting 1gb ram and then have 6gb in total.

 

Tradesman1

Legenda in Aeternum

________________________________

Prob not in this case, but if mobo supports flex mode - (newer mobos) it can..... i.e. 2x4GB in channel A and a single 8GB stick in channel B - this is just for clarification so others won't take the above statement as an across the board given (and it also depends on if the sticks will play nice)