Overclocking my RAM after adding two sticks

[zman12255]

hello, i just purchased 8 gigs of ram (same make and speed as my other two sticks).

before i had 16 gigs of 2666mhz set to that speed, i put the two new sticks in the dual channel slots (total of 4 slots) its the GIGABYTE H370 HD3

and now i cant over clock them to 2666 they are stuck in base clock, my pc crashes when i use the xmp profile.

the ram is the Corsair LPX 8GB DRAM 2666MHz C16  (2 sticks of 8 and two sticks of 4)

if anyone can help that would be great!

[TwilightRavens]

23 minutes ago, zman12255 said:

hello, i just purchased 8 gigs of ram (same make and speed as my other two sticks).

before i had 16 gigs of 2666mhz set to that speed, i put the two new sticks in the dual channel slots (total of 4 slots) its the GIGABYTE H370 HD3

and now i cant over clock them to 2666 they are stuck in base clock, my pc crashes when i use the xmp profile.

the ram is the Corsair LPX 8GB DRAM 2666MHz C16  (2 sticks of 8 and two sticks of 4)

if anyone can help that would be great!

Usually mixing different types and capacities of RAM is a bad idea, this is why. It’s also a LOT harder to stabilize 4 sticks of RAM over 2.

 

The only thing I can suggest is setting the timings to the kit with the worst timings and upping the RAM voltage, but theres not much else you can do outside of that. A command rate of 2 will sometimes help.

 

Other than that I would just take the two 4GB sticks out and set it back to XMP, run it at default 2133MHz with all 4 sticks, try XMP but with a lower speed like 2400MHz or get the exact same kit with the exact same capacity next time.

[Applefreak]

So you now have 4x 4 GB SD-DDR4, right? Why didn't you go for a kit of 2x 8 GB at a faster base speed. As @TwilightRavens already mentioned, OC on 4 DIMMs is difficult.

[zman12255]

i have 2 sticks of 4 gig 2666 and 2 sticks of 8 gig each in there right channels, thank you for the feedback, i might just return the new sticks and get the 2x 8 gig stick so its all matching.