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Ram not performing at its advertise speed

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Hey guys I need some help here, my 16gb (2x 8gb) Corsair vengeance LED is running at 2133 mhz instead of 3200 mhz. I checked before that my motherboard supports 3200 ram, do I have to twerk things in bios in order to achieve the speed? 

 

Spec:

Cpu: Ryzen 7 1700x

Mobo: B350 PC Mate 

Ram: Corsair Vengeance LED 3200mhz 16 GB (2x8gb)

Gpu: GTX 1060

ram.jpg

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You need to enable XMP.

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If nothing eventually fixes it, it's fine because ram speed won't make any difference other than a few things loading a millionth of a second faster, so it doesn't really matter.

 

edit: took out some dumb shit

only the tips

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2 hours ago, waterjug said:

Make sure the ram is in the right slots bc sometimes only some slots support that speed.

 

If nothing eventually fixes it, it's fine because ram speed won't make any difference other than a few things loading a millionth of a second faster, so it doesn't really matter.

Nothing here is accurate.

 

2 hours ago, Enderman said:

You need to enable XMP.

This is correct.  

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31 minutes ago, waterjug said:

If nothing eventually fixes it, it's fine because ram speed won't make any difference other than a few things loading a millionth of a second faster, so it doesn't really matter.

 

edit: took out some dumb shit

 

RAM speed on the AMD Ryzen platform impacts performance quite significantly.

The Infinity Fabric, the communication bus between each CPU core module, runs at the same speed as the DRAM frequency.

Not only that, other internal CPU components are also sync'ed with the memory speed, including the CPU's L3 cache, and parts of the PCI-E bus, etc. 

 

One game example...Deus Ex: Mankind Divided.

2133 MHz = 95 FPS

3200 MHZ = 110 FPS

 

deus-ex-gaming.jpg

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1 hour ago, -rascal- said:

 

RAM speed on the AMD Ryzen platform impacts performance quite significantly.

The Infinity Fabric, the communication bus between each CPU core module, runs at the same speed as the DRAM frequency.

Not only that, other internal CPU components are also sync'ed with the memory speed, including the CPU's L3 cache, and parts of the PCI-E bus, etc. 

 

One game example...Deus Ex: Mankind Divided.

2133 MHz = 95 FPS

3200 MHZ = 110 FPS

It's probably a greater difference with JEDEC 2133MHz timings.  That chart is using 12-12-12 when JEDEC is either 14-14-14 or 15-15-15 I think.  And that makes a big difference too.  Also the 3200MHz is using 16-16-16 and b-die kits can do 14-14-14 on Ryzen.  That would also widen the gap between 2133MHz and 3200Mhz.  

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2 minutes ago, nick name said:

It's probably a greater difference with JEDEC 2133MHz timings.  That chart is using 12-12-12 when JEDEC is either 14-14-14 or 15-15-15 I think.  And that makes a big difference too.  Also the 3200MHz is using 16-16-16 and b-die kits can do 14-14-14 on Ryzen.  That would also widen the gap between 2133MHz and 3200Mhz.  

 

Good point.

 

I guess I'll add this in as well.

LegitReviews did some more memory testing with their Ryzen 2700X.

This time, same memory timings throughout, while changing just the DRAM frequency.

 

farcry5-ddr4-clock-speeds-low-645x583.pn

 

farcry5-ddr4-clock-speeds-normal-645x583

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Read reviews on your board.

Specifically,.. Did they have issues with ram speed.

 

Ryzen first gen (Motherboards) had some compatability issues with faster memory. Usually sorted via Bios updates to motherboards, but not a complete solution as it helped but never cured every board.

 

Make sure your Motherboard is on it's latest bios.

Retest.

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2 hours ago, -rascal- said:

 

RAM speed on the AMD Ryzen platform impacts performance quite significantly.

The Infinity Fabric, the communication bus between each CPU core module, runs at the same speed as the DRAM frequency.

Not only that, other internal CPU components are also sync'ed with the memory speed, including the CPU's L3 cache, and parts of the PCI-E bus, etc. 

  

 One game example...Deus Ex: Mankind Divided.

2133 MHz = 95 FPS

 3200 MHZ = 110 FPS

i mean yeah a few extra fps is nice, but I was basically just saying was everything will still work just fine, and its not the end of the world if the frequency is a bit lower, unlike how a cpu or gpu running slower can seriously impact the gameplay.

only the tips

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Update: I found the solution! I enable the XMP, select profile 1 and exit bios but nothing changes, it still remain at 2133 mhz. I figure out you have to change the DRAM frequency from AUTO to 3200 mhz. Enable 'Memory Try it!' (latency) and select 16-18-18-18-36. Set the voltage to 1.35V and save changes and exit bios. PC will keep rebooting for a while then once it booted up, it's done. 

IMG_20181023_153505.jpg

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