So i have a ram module, Kingston HyperX KHX3200C16D4/8GX
I set up an xmp to run it at 3200, but aida shows that it runs on 1500mhz: http://ipic.su/img/img7/fs/Ram.1588584820.jpg
And cpu-z shows that it runs at 1200: http://ipic.su/img/img7/fs/ram2.1588585114.jpg
Also in bios settings i cannot enable core performance boost for cpu. Maybe it's because of the ram? What's going on?
Posted May 4, 2020, 12:01 PM UTC
Install he monitor and play a game or do a benchmark and watch the clock speed, cpu should be doing his thing if is on auto.
Ah, so it changes frequency on the run? It does not affect cpu in negative ways to constantly do it instead of working on set frequency all the time?
Yes, if it doesnt reach a thermal limit it will boost, if it reaches clocks down a little, but should hover at the base clock speed. You should be able to change base clock in BIOS. For example, when I built my system my ryzen 5 2600 showed 0.8ghz and I went to BIOS and changed it to spec 3.4ghz, but the CPU is always boosting. Sometimes hits 4.5ghz while on boost for single core. Normally amd advertises all core boost, not single core.
Thanks for the help! I will look if i can change base clock.
AMD advertises the single core max boost.
"Max boost for AMD Ryzen processors is the maximum frequency achievable by a single core on the processor running a bursty single-threaded workload. Max boost will vary based on several factors, including, but not limited to: thermal paste; system cooling; motherboard design and BIOS; the latest AMD chipset driver; and the latest OS updates. Learn More."
The only way a 2600 is hitting 4.5 GHz on auto is if you are using HWMonitor or Speccy as they are error prone in their reporting.
My CPU in games is constant 3.9 GHz on all cores but hits single core 4.4-4.5, hw is not perfect but it wouldn't show such margins.
There are several programs that cause mis-reporting of BCLK and or ram sped with various reporting programs. Someone posted about Vanguard being one this morning, and I have seen several others in the forums - unfortunately I can't remember them.
Looks like it’s running at 2400mhz in both screenshots. I would almost bet that the xmp isn’t stable and it’s resetting when it tries to save and boot.
Cpuz shows speed in half, if you want to make sure, use this: 1.Windows key+R and type cmd 2.in cmd type this command
wmic memorychip get speed
There are other commands that you can use to show the timings, but if it shows in BIOS after you loaded the XMP profile it should be fine. If the ram speed doesn't show in task manager it will show in cmd.
Yeah, it shows 3200. So the ram is fine, and it's the monitoring programs that are bugged?
They aren't bugged. This is how it works, DDR = Double Data Rate. So you take the value in cpuz and multiply by 2, that is the speed that the ram is running at. My ram speed isn't even showing in task manager, I recommend using cpuz and the cmd values when using XMP profiles or overclocking ram in general. Your ram is fine and good to go.
> So you take the value in cpuz and multiply by 2, that is the speed that the ram is running at.
But value in cpu-z is 1200. Even if multiplied, it's only 2400, not 3200, right?
Also, not being able to set cpu clock in bios not connected to ram? I can only chose between auto (and it sets default frequency) and disabled when i pick the cpu boost clock option.
CPU clock in bios should be the clock that is advertised, for example if a cpu is 3.4 GHz, it should be 3.4ghz or lower. I don't know if it's a ram problem. In cmd it showed the correct ram speed?