RAM sticks not working

[Tongan]

I've just bought a 2GB set of RAM from Corsair to add to my current 2GB of Corsair RAM.

The two sets of sticks are identical in specs. (CM2X1024-8500C5D)
But for some reason they are not working together.

I've worked out that the RAM slots are fine, and all four sticks work fine as well. However I just can't get the computer to boot up when I mix the 'old' RAM with the new RAM.

On the side of the new RAM sticks it reads: '2.10V ver5.1'
On the old it reads: '2.10V ver4.1'
But other than that, they are completely the same.

Surely this small difference doesn't render these sets of sticks completely incompatible?

 

[kimsland]

completely incompatible

Not because of the different rating, but because they are just different
Many boards work best, when all Ram cards are identical.

 

[Tongan]

Ok.
So I'm stuck with 2GB unless I find those exact 'ver4.1' sticks' ?

 

[kimsland]

You are stuck on 2Gig, unless you purchase 4 Gig all at the same time, and exact same type

 

[Tongan]

ok...ffs.
Well thanks anyways Kimsland.

 

[kimsland]

Note there may still be a way to get them working together with some fine adjustments in CMOS settings.

My opinion, just get the same Ram

 

[Tongan]

You reckon I can return them to Corsair for some '4.1' sticks?

 

[kimsland]

Yes

If you are spending more money, I'm sure they will accept

 

[Tongan]

Ok, I've just got an RMA ticket on the Corsair site and waiting for a response.

Thanks again Kimsland.