1700X OC depends on RAM?

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Martin_163

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Mar 29, 2017
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Hey guys,

is it possible that Ryzen overclocking results depends on which RAM you have? I´ve got Corsair
Vengeance DDR4-2400 DIMM CL14 a-XMP enabled and its not possible to get the 1700X over 3.8 GHz. 1700X on 1,38V and the DDR4 at 1,35V is quite stable. 3.9GHz or higher whatever voltage crashes at OCCT stresstest.

The reason why I mention this is, OCCT shows me that my CPU is still at idle when the benchmark starts and just the memory starts to load - so it crashes at 70% memory laod or something above. The CPU dosen´t move at this point.

Best regards,
Martin
 
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Well, I have a 1700 (non-X) sitting at 3.8ghz on the stock Wraith Spire cooler and it runs just fine. I did that with out even getting into the RAM, and just basically took the multipliers up to 38. It's sitting around right now just being stable, and I have yet to try going higher since I am using just the stock cooler.

However, that's with the RAM at 2133 mhz.

My issue is with getting it faster than 2400mhz on the RAM - I've been completely unable to get it to post at anything faster than 2400 mhz (and I have the Corsair Vengeance LPX 3000mhz RAM, and running latest BIOS on an Asus B350 board).

My point I guess is that there isn't anything tied to RAM speed and OC speed. OC speed is independent - hence the benefit of unlocked...
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NateTech

NateTech

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Jan 4, 2016
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Hello!

No RAM doesn't change the way Ryzen overclocks, but it can take advantage of better RAM. The higher the memory speed, the faster Ryzen will perform as Ryzen is dependent on communication with the RAM due to CCX technology.

Hope this was of some help!
:)

- Nate of Ralleon Custom Built
 
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Rookie_MIB

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Jul 27, 2013
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Well, I have a 1700 (non-X) sitting at 3.8ghz on the stock Wraith Spire cooler and it runs just fine. I did that with out even getting into the RAM, and just basically took the multipliers up to 38. It's sitting around right now just being stable, and I have yet to try going higher since I am using just the stock cooler.

However, that's with the RAM at 2133 mhz.

My issue is with getting it faster than 2400mhz on the RAM - I've been completely unable to get it to post at anything faster than 2400 mhz (and I have the Corsair Vengeance LPX 3000mhz RAM, and running latest BIOS on an Asus B350 board).

My point I guess is that there isn't anything tied to RAM speed and OC speed. OC speed is independent - hence the benefit of unlocked multipliers. Some Ryzen CPUs are better than others - but the limits that we're finding is right around 4.0-4.1ghz.

Also - remember - this is a full 8-core 16 thread CPU on a brand new architecture... and you're trying to push it faster than it was designed. Your mileage will DEFINITELY vary.
 
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