ram running at wrong speed

[tuxedocat]

hi
i just upgraded my ram and cpu at the same time. when i first booted it restated once before it got to windows but been running for about an 1hr now without any issue.

the problem is i had 8gb of ram 4x2 brand was hynix pc3 12800u and it ran at 1600 mhz.
i upgraded to 16gb g.skil trident 1600 mhz but its only running at 1333 mhz.

my bios doesnt have any adjustable settings for ram it just says how much i have and at what speed it is.

pc is a dell inspiron 660

any way to fix this?

 

[Tradesman1]

Do you have the latest BIOS? and what mobo and CPU model?

 

[tuxedocat]

yes i have the latest bios update
the motherboard is 0xr1gt according to cpu-z
cpu is i7 3770

 

[Tradesman1]

I'm guessing here, you might contact Dell, but the 2x8GB Trident X are CL7 and I have strong doubts that a prebuilt's BIOS will be written to run the the 1600/7 sticks. Prob drop them to 1333/9 or maybe even 1333/10, at stock the BIOS might run 1600/11 or 10

 

[tuxedocat]

that must be it cause my last sticks were 1600 cas 11 and worked . would you switch them back to stock for gaming. any difference in 1333 cas 9 vs 1600 cas 11?
thank you

 

[tuxedocat]

i gues i should have googled that cause it been asked many times what i came up with is there shouldnt be any difference in game wise so not worth opening case.if im wrong please post back cause im starting a high demanding game (witcher 3) tonight.

thanks

 

[Tradesman1]

Gaming wise, there will be very little difference in your rig