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Ryzen mem/uclk/fclk oopsie!

Soldato
Joined
30 May 2007
Posts
4,846
Location
Glasgow, Scotland
Hello, I used to be right into overclocking and these days I cant really be bothered.

So with the 5800X and some 3600Mhz RAM all I done was set the XMP profile for the RAM so it would run at 3600Mhz and the nicer timings.

BUT the 5800X fclk (infinity fabric) is 1900Mhz and since I set the XMP to 3600Mhz for the RAM (1800Mhz) and left the rest on auto, the uclk and fclk were brought back down to the 1800Mhz of the RAM.

It's been running like that for months, I didnt even think of it. I guess it keeping all 3 at the 1800Mhz was nicer since Ryzen likes the 3 matched but by that it was underclocking itself.

Just something to be weary of, might as well check that with XMP set it isnt pulling the rest of the system down!

(CPU-Z bench moved from 6638.2 (average of 3 runs) to 6689.8 (average of 3), big whoop I know, but shows it makes a difference and likely more elsewhere)
 
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