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What's DOS?
Posts: 2
Registered: ‎07-28-2018
Location: TW
Views: 777
Message 1 of 3

Lenovo B590 CPU Upgrade

Good day 

I have a Lenovo B590 

Upgrades done 


8GB Ram 

CPU i5-3210m Lenovo (FRU list)


How ever after I reset my bios and activated Hyper V on Windows 10 it still only reads one CPU with two threads 

But on Device Manager it shows 4 cpu's.

But in task manager it only shows one CPU and two threads.


Any help would really be appreciated.

Thanks in advance.

Posts: 2,363
Registered: ‎11-07-2014
Location: US
Views: 733
Message 2 of 3

Re: Lenovo B590 CPU Upgrade

That is a "Dual Core" chip that uses HT to provide 2 additional "software driven CPU cores" for additional performance boosting.

Device manager (windows app) will show 4 cores (both hardware and software driven CPU's) but Task Manager will only show the 2 cores from "hardware" and ignore the "software" ones.


I do not work for Lenovo, I only provide suggestions based on my personal willingness to help others. All advice and comments are based on my experience, and do not reflect Lenovo policy, terms or conditions.
What's DOS?
Posts: 1
Registered: ‎11-25-2018
Location: BE
Views: 636
Message 3 of 3

Re: Lenovo B590 CPU Upgrade

Lenovo B590

Mainboard: 62742QG 

i3 cpu
Also Working Upgrade to Core(TM) i5-2540M

8Gb Ram

Hard Disk: P3-256 ATA Device (236GB) "kingspec"

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