F5F Stay Refreshed Hardware Desktop Understanding memory XMP and overclocking for 3200G RAM: key points to know.

Understanding memory XMP and overclocking for 3200G RAM: key points to know.

Understanding memory XMP and overclocking for 3200G RAM: key points to know.

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Slender_PvP
Junior Member
24
06-17-2016, 07:23 PM
#1
I'm expecting a 3200MHz to not function properly with the XMP profile. Given the Zen+ CPU core, I'm thinking a RAM controller like the R2000 would be better than the 3000 series, which sometimes struggles at that speed. I understand there are timing details that matter, but I'm unsure why they're important or what they do. I believe the SOC voltage might drop to around 1.18V, which could cause XMP profiles to start working if it reaches 4400MHz (though a 2:1 clock ratio might not help much). I should try a 1:1 frequency instead. I don't know the exact timing values, but can you check if reaching 3600MHz is realistic for this setup? Is that a reasonable target for a Zen+ chipset?
S
Slender_PvP
06-17-2016, 07:23 PM #1

I'm expecting a 3200MHz to not function properly with the XMP profile. Given the Zen+ CPU core, I'm thinking a RAM controller like the R2000 would be better than the 3000 series, which sometimes struggles at that speed. I understand there are timing details that matter, but I'm unsure why they're important or what they do. I believe the SOC voltage might drop to around 1.18V, which could cause XMP profiles to start working if it reaches 4400MHz (though a 2:1 clock ratio might not help much). I should try a 1:1 frequency instead. I don't know the exact timing values, but can you check if reaching 3600MHz is realistic for this setup? Is that a reasonable target for a Zen+ chipset?

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Freakiiianyx3
Senior Member
694
06-17-2016, 08:05 PM
#2
Red is the main setting, green covers the rest. XMP simply means a preset that ensures your RAM operates at its advertised performance and timing. It involves pushing your RAM beyond its standard speed or using faster clock settings than the original design allows. If XMP fails, it’s likely you’re not overclocking properly. When XMP doesn’t function, adjusting timings, lowering data rates, or testing with different voltage levels for your SoC becomes necessary. Be very careful—SoC is highly sensitive to voltage; avoid using Zen2 values and stick to recommended settings. Extremely rare cases might see Zen+ memory controllers reaching 3000-3200mhz. This guide provides clear instructions on RAM overclocking techniques. https://github.com/integralfx/MemTestHel...guide/DDR4 OC Guide.md
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Freakiiianyx3
06-17-2016, 08:05 PM #2

Red is the main setting, green covers the rest. XMP simply means a preset that ensures your RAM operates at its advertised performance and timing. It involves pushing your RAM beyond its standard speed or using faster clock settings than the original design allows. If XMP fails, it’s likely you’re not overclocking properly. When XMP doesn’t function, adjusting timings, lowering data rates, or testing with different voltage levels for your SoC becomes necessary. Be very careful—SoC is highly sensitive to voltage; avoid using Zen2 values and stick to recommended settings. Extremely rare cases might see Zen+ memory controllers reaching 3000-3200mhz. This guide provides clear instructions on RAM overclocking techniques. https://github.com/integralfx/MemTestHel...guide/DDR4 OC Guide.md

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Woody_JuX
Member
130
06-18-2016, 08:17 PM
#3
There’s no freedom to adjust the FCLK completely—it stays fixed at one-to-one. Before Zen 2, APUs don’t boost memory performance as much as CPUs do. Keeping it low is preferable because you lose TREFI control, unlike Intel chips.
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Woody_JuX
06-18-2016, 08:17 PM #3

There’s no freedom to adjust the FCLK completely—it stays fixed at one-to-one. Before Zen 2, APUs don’t boost memory performance as much as CPUs do. Keeping it low is preferable because you lose TREFI control, unlike Intel chips.