Troublesome upgrade due to different revisions of Corsair Vengance LP (CML16GX3M2A1600C10)

Regert

Commendable
Mar 8, 2016
1
0
1,510
Hi guys (first time poster here). I'd really appreciate your help with this one:

I have motherboard gigabyte GA-Z68XP-UD3 (link here)and about 2 years ago I purchased 2 stick of 8GB RAM - Corsair Vengeance Low Profile — 16GB Dual Channel DDR3 Memory Kit (CML16GX3M2A1600C10) link here

Recently I tried to buy to 2 more sticks of the very same model (in order to have a total of 32GB RAM). But when using both the new and old RAM kits the system behaves strangely - it suffers micro freezes even when not doing anything hardware intensive. So I researched a bit and it seems that despite the 2 RAM kits being of the same model,manufacturer, type, clock speed, etc. - they are of different revisions and thus they are not really identical
here are some screenshots from CPU-Z & AIDA64 (link here)

The box states that all stick should be DDR3-1600 (800MHz) but it seems that the new kit is DDR3-1333 (667MHz PC3-10700) while the old one is DDR3-1600 (800MHz PC3-12800J). And the clock-speeds between the 2 kits are not identical either.

I'm not really and expert on the matter and I couldn't find an solution to the problem. But is it possible to make the new & old kit work together? (Maybe by adjusting BIOS settings like clock speeds, or something.) Or is the hardware manufacturer at fault for mislabeling different products as identical and I should return the new kit?

I was trying to troubleshoot this one but for time but to no avail. Any help on the matter would be greatly appreciated. Thanks a lot to everyone!

here are HW info screenshots