ThinkPad E580: PCIe speed – is it x2 or x4? Need help


I have ThinkPad E580 20KS001QIV with 256GB M.2 SSD.

Speed tests show 1700 MB/s on sequential read and 1000 MB/s on sequential write.

Few days ago I bought a new Samsung 960 EVO M.2 SSD that’s supposed to be ~2 times faster than my original SSD: 3200 MB/s read and 1800 MB/s write.

I cloned my SSD and replaced with new one.

But speed test showed me 1700 MB/s read and 1500 MB/s write, not 3200 MB/s as advertised by Samsung.

I installed Samsung Magician to explore the drive and it showed me drive configuration: PCIe Gen. 3 x2.

Accoring to wiki (  ), max transfer rate

PCIe Gen. 3 x2 – 1,97 GB/s

PCIe Gen. 3 x4 – 3,94 GB/s

So, if E580 has Gen3 x2 onboard then I never can get 3200 MB/s speed :(((

I cannot find any documentation for E580 that specifies PCIe type and speed (Gen. X, number of lanes – x2 or x4).

BIOS/UEFI doesn’t show PCIe info as well as it has no any related configuration parameter, just nothing.


I’d like to find out the onboard PCIe type. I know it’s Gen. 3 but how many lanes – is it x2 or x4 ?

Do I miss some driver or software option that can switch PCIe from x2 to x4 mode and hopefully reach the desired speed 3200 MB/s ?

I have Windows 10 Pro, I installed all latest packages suggested by Lenovo Vantage and upgraded firmware.

Thanks for any help.

External object like microphone

When I connect microphone in my mobile then not supported this problem is creat after when I update my mobile in Oreo 

COSU app doesn't restart after self-updating

My company is designing an Android app that will run in COSU mode (i.e., device owner/admin, lock task mode). Since the tablet is essentially locked down, the app will need to be able to update itself. I can accomplish this by downloading an APK from my private server and installing it using PackageInstaller; no problem.


The issue is that after installation, the app doesn’t restart itself (a big problem for my particular application). I found several posts on StackOverflow about it, but unfortunately nothing solved the problem. So I decided to test it on another tablet (a Huawei MediaPad T3) and the app restarted after updating as it should. At this point I realized it was an issue with the Lenovo tablet and not the app. I made a call to Lenovo’s tech support and was told that they don’t provide support for software, only hardware.


I came here to get help and found this post in a quick search. The solution given does fix the issue and will work as a temporary workaround, but my company won’t be able to do this on every single device we deploy to our customers. We love the Tab4 8 and would like to stick with it, but this is a show-stopper for us if we can’t get it resolved.


Any help would be much appreciated!


Some technical details:


Here is the broadcast receiver in AndroidManifest.xml:


<receiver android_name="com.mycompany.UpdateReceiver" android_enabled="true" android_exported="true"> <intent-filter> <action android_name="android.intent.action.MY_PACKAGE_REPLACED" /> </intent-filter> </receiver>



This is the warning I see in logcat after the updated package is installed:


10-31 13:20:20.499 LENOVO TB-8304F1 Warning 713 BroadcastQueue Unable to launch
app com.mycompany/10372 for broadcast Intent { act=android.intent.action.MY_PACKAGE_REPLACED
flg=0x4000010 pkg=com.mycompany (has extras) }: process is not granted


Tablet specs:

Model: Tab4 8 (TB-8304F1)

Build Number: TB-8304F1_S000006_180327_ROW

Sofware version: TB-8304F1_RF01_180327

Android version: 7.0


ThinkCentre E73 Tower Hangs on reboot after CPU upgrade



I upgraded the CPU from a i5 4440S to a i7 4790S which was listed a supported CPU. 


Now everything works fine EXCEPT rebooting. When i shut down the machine and start it boots normally. But when i reboot it the screen stays black and the machine does nothing and i have to hold the power button to turn it off and then it boot normally.


So far i tried:


Ran prime95 to check stability of the new CPU. All fine.

Ran the build-in hardware checks. All fine

Did a completly clean instal of Windows 10.

Reset the BIOS by taking out the battery.


This issue is driving me up the wall and i never had anything like this. 


Any help would be greatly appriciated.

Does the ThinkPad X1 Extreme support USB-C Charging? If so, what chargers are compatible?

Does the ThinkPad X1 Extreme support any sort of charging over USB-C, be it trickle/regular/fast(er) charging?

To clarify, does it support receiving a charge via USB-C in the case that the (slick) 135W charger is not in my bag?


A) If it does support charging, where can I find:

specificationsdetailed instructionsdescription of expected behaviors (e.g. one port is "better" than the other, or "never plug in the Lenovo charger while charging via USB-C", or "to charge via USB-C the X1 Extreme must be sleeping")

B) Will any/all of these work in a pinch, or better than a pinch?

Anker wall chargers?Anker power banks?Apple MacBook 87W power adapter?Nintendo Switch default AC adapter? (5V*1.5A) or (15V*2.6A)Plugging into the Thunderbolt3/USB3-C port on my gigabyte motherboard tower PC?

C) Bonus question: What are the specifications on providing a charge to other devices via USB-C?






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