Mixing RAM latency

[Yash Ballani]

Hi, I have bought a new Dell Inspiron 7559 with SK Hynix 8 GB DDR3L ram and I have another G. Skills ripjaws 4 GB DDR3L RAM with me. The problem is the both RAM work at different CAS Latency but on similar clock speed & voltage. Will it work as intended and cause no issue and is it a good option to mix both of them or should I just buy a new RAM?

[KeFy]

mixing ram is not really a good idea since it can cause compadibility issues 

 

get new

[Yash Ballani]

1 minute ago, KeFy said:

mixing ram is not really a good idea since it can cause compadibility issues 

what type of compatibility issues? Will it damage the system in any kind?

[79 Potatoes]

Just try it, it's not like the PC will blow, if it fails to boot first clear CMOS JIC it needs to load timing profiles, then if it doesn't boot remove that stick

#Done

[KeFy]

Just now, Yash Ballani said:

what type of compatibility issues? Will it damage the system in any kind?

i don´t think it will damage it but you will have issues with power if you have a motherboard that can´t deliver the right power becouse the sticks probably don´t require the same amout of power and yeah. more/less power is never a good idea

[Yash Ballani]

4 minutes ago, 79 Potatoes said:

Just try it, it's not like the PC will blow, if it fails to boot first clear CMOS JIC it needs to load timing profiles, then if it doesn't boot remove that stick

#Done

 

I will definitely try once.

2 minutes ago, KeFy said:

i don´t think it will damage it but you will have issues with power if you have a motherboard that can´t deliver the right power becouse the sticks probably don´t require the same amout of power and yeah. more/less power is never a good idea

 

But the operating voltage is the same 1.35v should the issue still persist?

[porina]

Power wont be a problem. The ram will take what it needs based on the voltage. Even if they were different spec, going over a bit doesn't hurt other than maybe in power consumption.

 

Timings are also unlikely to be a problem. The system should set the lowest common working set between them. For piece of mind you can run something like memtest to make sure there are no obvious errors.

 

Ideally you would match the new stick to the old as that would enable dual channel mode, which isn't possible with mismatched capacity sticks.

[Yash Ballani]

7 minutes ago, porina said:

Power wont be a problem. The ram will take what it needs based on the voltage. Even if they were different spec, going over a bit doesn't hurt other than maybe in power consumption.

 

Timings are also unlikely to be a problem. The system should set the lowest common working set between them. For piece of mind you can run something like memtest to make sure there are no obvious errors.

 

Ideally you would match the new stick to the old as that would enable dual channel mode, which isn't possible with mismatched capacity sticks.

 

will definitely try and post the result.

[79 Potatoes]

26 minutes ago, porina said:

Ideally you would match the new stick to the old as that would enable dual channel mode, which isn't possible with mismatched capacity sticks.

Mixed mode, not perfect but still give some extra performance

http://www.intel.com/content/www/us/en/support/boards-and-kits/000005657.html#flex

[porina]

2 hours ago, 79 Potatoes said:

Mixed mode, not perfect but still give some extra performance

http://www.intel.com/content/www/us/en/support/boards-and-kits/000005657.html#flex

I've heard of that but it isn't mentioned commonly. I'm not sure where it is supported or not.