ram speed not what its set to in bios

mattcitko1999

Commendable
Jul 20, 2018
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1,510
I wanted to upgrade my ram in my fx 8350 build. I had 8gb of corsair vengeance pro and I bought 8more gb. at first when I added them I couldn't boot when using all 4 but no problem when using either new ones or the old ones. to fix it I went to bios and put dram speed to auto (msi 970 gaming carbon motherboard) and then it booted on 4 rams and then I went back to bios with all 16gb and changed to 1600mhz but now if I check ram speed withing the pc it says 800mhz. how can I correct this?
 
Solution


Mixing and matching different RAM, especially if they have different rated clock speeds or slightly different architecture, is a bad idea. It can lead to problems with stability and...

jerrylee22

Commendable
Aug 31, 2016
84
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1,710
If you're using DDR RAM, this is how it's supposed to be. It's called "double data rate" so essentially double the 800mhz and you get 1600mhz.
If you have Windows and use
wmic MEMORYCHIP
in the command prompt, it might/should show you 1600mhz.

For example, I have 16gb RAM overclocked to 3600mhz, and using a system reader likeHWiNFO64, it's reading as 1800mhz. This means 3600mhz. Using wmic MEMORYCHIP, for me it says Speed 3600, though.
 

mattcitko1999

Commendable
Jul 20, 2018
5
0
1,510


I checked in the comand prompt and its still saying that its clock speed at 800. Should I check bios?
 

jerrylee22

Commendable
Aug 31, 2016
84
0
1,710


Mixing and matching different RAM, especially if they have different rated clock speeds or slightly different architecture, is a bad idea. It can lead to problems with stability and performance. Sticking with dual-channel or quad-channel "kits" (they come together) is the best for RAM and system compatibility. Running two RAM sticks that came together will give you better luck, especially with clock speeds and stability. If they have different clock speed or CAS latency ratings, they might not work together properly or at all.

Also, is the RAM you purchased RATED at 1600mhz or 800mhz? If you bought RAM that is only 800mhz, it might not be able to overclock to 1600mhz stable with your motherboard and BIOS, especially if you're mixing different RAM together. If it's rated at 1600mhz, and you use RAM that came together, you should absolutely have no problems with it.

Otherwise... if you got 1600mhz RAM, make sure it's set to 1600mhz in the BIOS (should be by default, as your motherboard supports it) and that it's saved before you exit and reboot... and apparently it's normal or common, at least with DDR3 (which you should have), to show at it's "correct" halved rate in Task Manager and wmic... and as I said, generally, if DDR RAM is reading as exactly half of what it's supposed to, it's working fine (again, double data rate). I'm not sure why some programs and certain versions of them automatically multiply it and some don't.
 
Solution
Jun 7, 2018
15
0
20
I personally would use a RAM benchmarking tool such as AIDA64, or UserBenchmark.
I would then conduct online comparisons between your RAM and other people's 1600MHz kits. I agree with jerrylee22 on this one. Your ram is Double Data Rate, and as long as the bandwidth and latency line up with other 1600Mhz kits, you should have nothing to worry about.