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- HP Community
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- Notebook Hardware and Upgrade Questions
- RAM clock speed of HP Probook 450 G5

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11-17-2018 01:11 PM
Hi. I have an HP Probook 450 G5 2XR60PA that has an i5-8250U CPU. It has 4GB RAM in default. The clock speed of this RAM is 2666MHz when I checked in CPU-Z. However, as I checked in Task manager, it only runs at 2400MHz.
So my question is, does my Probook only support 2400MHz RAMs? Or there's something wrong that my RAM didnt run at 2666?
And if I buy another RAM to upgrade, should I buy a 2400MHz RAM?
Solved! Go to Solution.
Accepted Solutions
11-17-2018 01:33 PM
Your memory bus only runs at 2400MHz.
i5-8250U CPU
https://ark.intel.com/products/124967/Intel-Core-i5-8250U-Processor-6M-Cache-up-to-3-40-GHz-
PC4, 2133-MHz, DDR4 SODIMMs (models with 8th generation Intel Core processors run at 2400 MHz)
Your manual here:
http://h10032.www1.hp.com/ctg/Manual/c05695301
Look at page 2:
REO
11-17-2018 01:33 PM
Your memory bus only runs at 2400MHz.
i5-8250U CPU
https://ark.intel.com/products/124967/Intel-Core-i5-8250U-Processor-6M-Cache-up-to-3-40-GHz-
PC4, 2133-MHz, DDR4 SODIMMs (models with 8th generation Intel Core processors run at 2400 MHz)
Your manual here:
http://h10032.www1.hp.com/ctg/Manual/c05695301
Look at page 2:
REO