Playing the cuda version of leela chess zero on lenovo flex 14' with NVidia GeForce 840

I thought my laptop was not supported by CUDA version of Leela Chess Zero, the AI powered open source chess engine. But today, I have managed to run it on my old lenovo laptop.

Before this cuda build, i have been using the cpu version, opencl build and the last the directx 12 build. 

To run this, first i download the latest lc0 from lc0 download page. Then, I update my NVidia GeForce driver to the latest release. Unpack the cuda build of leela chess zero and add the engine to my Arena Chess GUI. And it work out of the box.

lc0 running on Arena GUI, with NVidia GeForce 840

Setting Up Leela Chess Zero lc0 25.1 directx 12

this version of lc0 was intended to use with directx 12 card. From Leela's page, this variant is for non NVIDIA card windows 10. but when you try to run the engine on dual graphic card laptop, for example, mine, using NVIDIA Geforce 840 and Intel Graphic, it would spit "Dx error: Unspecified error (c:\projects\lc0\src\neural\dx\shader_wrapper.cc:122)". That error would disappear when you set lc0 to use NVIDIA High performance from NVIDIA control panel Settings.

change lc0 settings from NVIDIA control panel, use High-performance NVIDIA processor

Installing additional RAM on my Lenovo Flex 2 14 inch

In this tutorial, I will show you how to install additional RAM on Lenovo Flex 2 14". The RAM that I was using for this project is team elite 8GB DDR3 PC3L piece from team. It operates on 1600 MHz. On the laptop, there have already 4 GB RAM from Skynix.
The seller told me that it is OK to install them together.
So, lets do that!
I open the laptop case, and install the RAM on the available slot. Put the case back and run some test. The installation went success, and performance boost have been noted.
Please watch the video for more detail.

How to fix touchscreen not drag and drop when playing at chess.com live

Hello Everyone!
I just notice today that i cannot do the drag and drop action with my laptop touchscreen when playing live chess game at chess.com. I've looking the net for some solution but failed to find one.

For your information, I was using latest Mozilla Firefox. When using google Chrome, did not encounter this problem.

So, I went to look at Mozilla Firefox configuration, at about:config that will give out this kind of warning:

I went to click "I accept the risk" and searching for touch_event, and my screen looked like this:

I doubled click the key named "dom.w3c_touch_events.legacy_apis.enabled" so the value went from false to true.

When I open a new live game at chess.com, the drag and drop has worked once more.
I hoped this log help anyone.

What to try when (3D Viewer) mixed reality not recognising your laptop built-in camera

Finally, it works :)

Today I try to use 3d viewer and then try to used the 3d model in mixed reality. But the app (mixed reality) always ask me to setup camera first. But another application can use my laptop built in camera normally.
I then search the web, of course, looking for other user with same problem. I found a couple, but no solution could cure my finding.
But, then I try to update the camera driver via windows device manager. It appear that windows find more updated driver and install it. When I open 3D viewer again, tap on mixed reality, it does recognize my camera. May be, you can try that to if you have same problem. Hope this help.

How to use your old CanoScan Lide 20 on Windows 10 64 bit

If you happen to have that old flatbed scanner,  Canoscan Lide 20, and intend to use it with windows 10 64 bit, you might find it difficult to get a working driver.
Well, there is a work around. Use VueScan, a scanning program that will automatically install your CanoScan driver. This software is developed by Hamrick.
It enable me to keep the functionality of my old Canoscan, which is no longer supported by Canon. You can program the Button on the scanner to meet your preference.
This software is stright forward, easy to understand user interface. It allow you to adjust various setting, it saves to pdf and tiff.
But the price is not cheap. More than a half price of the Scanner it self. I hope someone find this post useful. Thank you

Playing Throne Rush on Your Advent Vega

This week throne rush has make me addicted. This war game is really has effect on my time management, I must warn you before you decide to play. Hehehe. The game play is like Stronghold or Warcraft or Battle realm or even the great Civilization. You start the game with a ruined castle along with minimal support for a village. How have to make your way to gain enough support to build an army. Buliding minery, windmill, barn and barrack. When you finally has your army. Try attacking real player to get morale, gems, and even ruines on some occasion. There is also a rarity fair which I think a genius addition to the game play, make it even more addictive to me.