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My laptop underclocks it's cpu from 2.7 ghz to 0.4

325 Views 2 Replies 3 Participants Last post by  Couriant
I have a dell laptop with a ryzen 7 2700u, now I know a little bit about computers, but my laptop confuses me. When unplugged it runs at the correct ghz which on average is 2.5-2.7 and when I plug it in it underclocks to 0.4 ghz. But here is the issue, it only does that SOMETIMES. If I am lucky I will plug it in then turn it on and it works fine. I have reset it completely except for the os around 2-3 times. It has the original power supply, I am unsure why it does this. I have tried poking around the bios to find the culprit but I wont lie I am not good with bios. The laptop I bought used around 3 months ago. If anyone could help me that would be greatly appreciated.

System specifications:

Tech Support Guy System Info Utility version 1.0.0.9
OS Version: Microsoft Windows 11 Home, 64 bit, Build 22000, Installed 20220208194209.000000-360
Processor: AMD Ryzen 7 2700U with Radeon Vega Mobile Gfx, AMD64 Family 23 Model 17 Stepping 0, CPU Count: 8
Total Physical RAM: 16 GB
Graphics Card: AMD Radeon(TM) RX Vega 10 Graphics, 256 MB
Hard Drives: C: 465 GB (363 GB Free);
Motherboard: Dell Inc. 05Y1V6, ver X01, s/n 9F4L9S2.CNCMC008BC0333.
System: Dell Inc., ver DELL - 1, s/n 9F4L9S2
Antivirus: Windows Defender, Enabled and Updated
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According to its support site and your log:
That Dell Inspiron 5575 laptop was purchased new about 3 years ago and came with Windows 10 Home 64-bit.
Windows 11 Home 64-bit was installed in it about 2 months ago.
Its 1 TB(931 GB) storage drive was replaced with a 500 GB(465 GB) storage drive.
Its 8 GB of RAM was increased to 16 GB.
It came with an AMD Ryzen 7 2700U processor.

You say you purchased that laptop in used condition about 3 months ago.
Did you upgrade it to Windows 11 and change some its hardware, or did its original owner do it?

BIOS update 1.5.0 was released for it about 2 months ago.
It has several fixes, including system stability, so you should consider installing it if an older BIOS version is being used.

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This seem to be normal as my son's dell did the same thing.

Check your power setting to see if it set to Balanced or Power Saver. If it's one or the other, try High Performance.
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