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09-11-2020

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Legion 5 XMP

2020-09-11, 3:01 AM

So I just bought the Lenovo Legion 5, Ryzen 7 4800h, 16GB RAM, 1660TI, 512GB NvMe. I wanted to upgrade it as soon as it arrived with another 1TB NvMe and upgrade the RAM to 32GB. The storage upgrade was no problem, however the RAM installed fine, but is only running at 2667mhz, when it should be running at 3200mhz ( as per the manufacturer ). I know this is something that is easily fixed in the BIOS, but im not finding the option. Please Assist. 

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Re:Legion 5 XMP

2020-09-12, 9:37 AM

Bump till answered

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08-12-2018

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Re:Legion 5 XMP

2020-09-14, 8:30 AM

If this is Crucial Ballistix RAM, then it won't work. Example: Link1.

The reason is that "3200 MHz as per manufacturer" is actually "XMP 3200 MHz", which means that your motherboard should have support XMP (which laptops usually don't have).You can try Hyper X RAM, for example Link2. Its specs says 3200 MHz JEDEC, which is nominal memory speed, not XMP.

 

Also, pay close attention to CL (CAS Latency). Sometimes 3200 MHz has not best CL, thus it can be even slower than a lower speed memory with lower CL.To find out, calculate: CL*2000/memspeed (the result is nanoseconds, the lower the better).For example, HyperX's 3200 MHz with CL20 will give 12.5 ns.Crucial's 3200 MHz (XMP, if it worked) with CL16 would give 10 ns.

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08-12-2018

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Re:Legion 5 XMP

2020-09-15, 5:01 AM

Here is another useful thread: Link3.

 

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