By definition though it does matter as then there is no point paying over the top for super fast RAM if you're pairing it with something a lot slower?
I used to know I lot more than I do now but I would think it's better to just pick up two lots of the same 16GB and stick that in slot 2 and 4.
I will soon have to get back to speed as I want to upgrade my RAM and hard drive.
Yes but in an office/work PC you need to basically match them to the top of the mobo/CPU's spec (for Mhz and max capacity; in Tramps' case 32GB/3200Mhz DDR4). What's important is to check which slots are to be used for the dual channel, but if the limit is 32GB I suspect there's 2 slots anyway. Also RAM that's not DDR5 is currently quite cheap anyway - ADATA that I linked are a very good brand, Kingston and Corsair are the other two and the price difference is in the pennis, not in the pounds, so to say.
@Tramps_mate in a Command prompt window type "
wmic baseboard get product,manufacturer,serialnumber" and you'll get manufacturer, product ID and serial number. Using that you can find out what the spec for the motherboard is. Another way is to use "msinfo32", by opening "Run" (windows key + R as a keyboard shortcut) and typing "
msinfo32" but you'll wait a bit.
Using either you can find out a manual or the manufacturer's guide on this and you can check compatibilities, as GSG said.
If you go to task manager -> Performance and click on Memory it will show you how many slots are used/available (i.e. "Slots used: 1 of 2").
