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Memory not running at 3200mhz?

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quakebo

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Discussion starter · #1 ·
I have 4 sticks of Corsair Vengeance RGB PRO Black 32GB 3200 MHz DDR4 Dual Channel Memory Kit (CMW32GX4M2C3200C16 ) and it seems to be running at 2133mhz and not 3200mhz.

So how do I get it to run at 3200mhz?

My specs are
MSI b550 mpg gaming plus with bios version 7C56v16
AMD Ryzen 5800x
Corsair rm850x psu
 
#3 ·
The RAM wont run at their rated speed unless you turn on the XMP profile in the BIOS
 
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#6 ·
Did you remember to save that change or did you just exit the BIOS without saving?
 
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Discussion starter · #9 ·
oobymach said:
Try manually setting voltage in bios to what is printed on the ram sticker. Sometimes xmp doesn't do it. Also have you tried manually setting ram and fclk speed in bios? For 3200mhz ram speed set fclk to 1600mhz, and uclk==memclk.

View attachment 2513150
Click to expand...
Thanks I will give that a try.
 
Discussion starter · #12 ·
TwoCables said:
Where are you looking to see what your memory's clock speed is? In the BIOS? If so, where? In some program? If so, which one? Where are you looking?
Click to expand...
Now here is a screen shot of bios showing that if I select memory profile 1 or profile 2 the ram will be set to 3200mhz but it does not and stays on 2133mhz.
 
#13 ·
quakebo said:
Now here is a screen shot of bios showing that if I select memory profile 1 or profile 2 the ram will be set to 3200mhz but it does not and stays on 2133mhz.
Click to expand...
Check the program CPU-Z in the Memory tab. If you see 1600 MHz, then it's at 3200 MHz (because memory is double data rate). If you see 1066.5 MHz, then it's 2133 MHz.

Note: the memory frequency displayed by CPU-Z might vary slightly. My memory is at 3600 MHz, but CPU-Z shows 1799.6 MHz, which is 3599.2 MHz. This is normal.
 
Discussion starter · #14 ·
TwoCables said:
Check the program CPU-Z in the Memory tab. If you see 1600 MHz, then it's at 3200 MHz (because memory is double data rate). If you see 1066.5 MHz, then it's 2133 MHz.

Note: the memory frequency displayed by CPU-Z might vary slightly. My memory is at 3600 MHz, but CPU-Z shows 1799.6 MHz, which is 3599.2 MHz. This is normal.
Click to expand...
CPU-Z shows 1066.4mhz which is only 2133mhz and not the 3200mhz I would like.
 
Discussion starter · #16 ·
TwoCables said:
Are you sure you're saving and exiting the BIOS and not just exiting without saving?
Click to expand...
Yes I am saving and exiting the bios.. Now the bios has a memory feature call try it so I have used that and set the memory to 2800mhz and that works great but select 3200mhz and will not work.
 
#17 ·
quakebo said:
Yes I am saving and exiting the bios.. Now the bios has a memory feature call try it so I have used that and set the memory to 2800mhz and that works great but select 3200mhz and will not work.
Click to expand...
Are you trying to make two 32GB kits work together? Or is it one 64GB kit?

If it's two 32GB kits, then you will need to loosen the timings a little and maybe set the voltage above the rated spec for the kits.
 
Discussion starter · #18 ·
TwoCables said:
Are you trying to make two 32GB kits work together? Or is it one 64GB kit?

If it's two 32GB kits, then you will need to loosen the timings a little and maybe set the voltage above the rated spec for the kits.
Click to expand...
Yes it's two 32GB kits but all the numbers on them match. now much higher past 1.35v is safe for the memory?
 
#19 ·
quakebo said:
Yes it's two 32GB kits but all the numbers on them match. now much higher past 1.35v is safe for the memory?
Click to expand...
Yes they match, but the binning/quality of the modules isn't the same.

I don't know how much is safe. Look at the specs of the 64GB kit though. I'll bet the timings are looser.

This is why it's generally not recommended to mix kits. Even if both kits are from the same brand and series with the same specs, putting them together will require you to figure out how to make them work together.
 
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quakebo
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