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November 29th, 2021 09:00
Ram Speed Dell 5480
I all, I have a dell latitude 5480 s/n 3rh70n2.
I was able to upgrade with 1tb ssd.
But I cannot upgrade with RAM: 16x2 -> kingston fury DDR4 2666Mhz CL15
I thought I could use 32gb but a lower speed as the machine seems to read up to 2444Mhz
Anyone did this upgrade before?
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ejn63
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November 29th, 2021 10:00
The issue is likely with the aggressive timing (low latency) -- this RAM is designed for gaming systems that allow speed adjustments for memory. Your system does not -- you'd be better off buying RAM tested and certified to work in your system:
https://www.crucial.com/compatible-upgrade-for/dell/latitude-14-(5480)
dho
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December 3rd, 2021 12:00
Thank you for your answer.
Interesting and strange at the same time.
The ram you suggested:
DDR4 PC4-21300 • CL=19 • Dual Ranked • x8 based • Unbuffered • NON-ECC • DDR4-2666 • 1.2V • 2048Meg x 64 •
The one I have:
Kingston FURY Impact DDR4 2666MHz 32GB; 2x16GB, DDR4, 2666MHz, CL15 SODIMM 2666 MHz (PC4-21300)
Notice they have same Mhz and same type PC4-21300, whats the difference and why mine are not working? just curiosity at this point.
ejn63
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29.4K Posts
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December 3rd, 2021 13:00
See the answer above -- the cache latency is too aggressive for the system board.
dho
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December 5th, 2021 00:00
The CL of the ram you suggested is 19, the one I have is 15 , how can it be more aggressive?