DDR4 memory

[Omaha Steve]

I added two sticks to my PC. Is it ok to run the PC with these specs?

System memory 28 GB

Memory slot 1 8GB 859B 2400MHz

Memory slot 2 4GB Kingston 2666MHz

Memory slot 3 8GB SK Hynix 2666MHz

Memory slot 4 8GB 859B 2400MHz

[padfun]

1. Does it start up?

The key is to have the same speed in each bank. If slot 2 and 3 are one bank, then you might be OK.

check your manual or check the motherboard online and see which slots make up which banks. Sometimes they are color coded but you cant rely on that.

Edit: If it beeps when you turn it on, count them and then look up the error codes from the short/long beeps.

[Omaha Steve]

2. It starts up and is running fine

So far.

[padfun]

4. Then you should be fine,

It will only run at the slowest speed but unless you are playing a memory intensive game or using Photoshop to its max, you shouldn't notice.

[Omaha Steve]

5. Thank YOU!

[Omaha Steve]

3. Here is the info

[eppur_se_muova]

7. Not an expert, but I believe that "dual memory architecture" means DIMMs are best paired ...

Usually, slots 1 & 3, and 2 & 4, are paired. If both 2 and 4 were 8GB or both 4GB, some really memory-intensive applications might run faster. If you're not doing high-end image processing or scientific computation, you'll probably never notice. Routine Web browsing etc. should not be affected to any degree you could notice.

ETA -- Oops, didn't even notice the clock speeds. Try swapping DIMMs 3 & 4. Then you've got 2400's paired w/each other, and 2666's paired w/each other. Right now, NONE of your DIMMs match in both size and speed. If you at least pair them by speed they will run at their max rated speed; as it is the 2666's will probably be "clocked down" to run at 2400.

[Omaha Steve]

8. Thank YOU!

[ItsjustMe]

9. Do you need a SSD to speed up your system?

The Samsung 860 EVO 500GB 2.5 Inch Is on sale at Amazon for $54.00

[Omaha Steve]

10. Not a bad deal

But I don't need it for now.