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Contact: Lamwai (William)
Whatsapp +8618064461868

About Us

Are you interested in buying, using, testing or learning computers troubleshooting equipments for Desktop, Servers and Laptops?
If so, you've come to the right place. My name is William Yu, and for the last 14 years, I've specialized in helping my clients find the best hardware diagnostic, analyzer, debugger, POST checker or quick self test kits for motherboards. Please allow me to be your guide.
We have the best quality, nice unique featured and quick easy-to-use hardware repair tools for PC owners, technicians, IT classes students and parts traders.

PC Motherboard Analyzers

New Laptop DDR4 Memory RAM Slots and DDR4 Memory Module LED Diagnostic Analyzer Test Card for No POST no Boot Diagnosis

Shipping costs:
Fast Free Standard(STD) Shipping with tracking number

International standard postage: Free

International express postage: $16.95
Buy options:
USA - Free STD Int'l Shipping
Optional INT'L Express Postage
Other Listed Countries - click to select
Buy from my eBay Stores:
Video Demo:

Someday, we may find our laptops got the power button pressed but no display screen as usual, it is not showing anything, out of order!


Laptops no POST no Boot Blue Screen problems most of time could be caused by the system memory components


Simply checking on the laptop Memory Modules / RAM sticks is not enough.

So we may have done the RAM swap but still the same no POST no display problem.

Actually, we need to check on the motherboard RAM slots as well.


In order to get these laptops memory area issues quick troubleshooted, we need this nice right set of the hardware test kit to help us out.


This set of the test kit consists of the following items:    
    1. Laptop DDR4 memory RAM slot diagnostic card
           1. Laptop DDR4 memory RAM module diagnostic card
1. Nice handy elastic antistatic wrist band strap
This diagnostic kit covers both laptop DDR4 memory RAM slot and the DDR4 memory RAM modules checks without the professional equipment and tools as seen in the computer shops.
We can do the laptops troubleshootings our own!
The included nice antistatic strap can be easily worn on our left / right wrist to help discharge the static off our hands and to provide the extra care to our computers.

By using this combo set of the laptop DDR4 test kit,  we can quickly find out which part of the laptop RAM slots or RAM modules are having issue so we can focus on that faulty area without spending extra money on the unrelated hardware replacement or repair.

Great saving time and money in help making our laptop working again.


Must have for the laptop owners whose laptops are running one of the most mainstream DDR4 memory.


Get this ready so we can just like having a doctor for our laptops so we can start saving when we need to.


Brought to you by 28 years IT professional

Free life time support

Made of Quality Materials and High Tech Components

Essential for laptop owners , computer learning classes , computer teachers , computer shops owners and even the computer parts traders … etc.


Free Lifetime Supports from 28 years computer hardware IT professional!

Welcome to contact if any question!

From Paypal 22 Years Verified Seller!

Welcomed to contact if any question or need assistance anytime~


Official PayPal Seal


I'm PayPal Verified

This is William again from

Senior IT Consultant and Tech Support Manager



Legal disclaimer:

Do Not copy this ad description text or just partial content illegally without the owner's permission.

Copying is in violation of the protection of the intellectual properties. This  kind of plagiarism is a serious offense and can constitute copyright  infringement.



All parcels come with tracking numbers.

Parcels will be sent by either International Standard (STD) or Express carrier (EXP) such as DHL/FEDEX/UPS...etc.

International orders, CONTACT PHONE NUMBER IS NEEDED for the carrier. Please leave the phone number when making the Paypal payment. Parcels will be sent to the Paypal address.

The International Express shipping method takes about 3-5 business days. 

The standard Free international shipping is available to the following countries:

USA, Canada, Norway, Australia, France, Germany, England, Israel, Saudi Arabia, Ukraine, Russia, Thailand, Malaysia, Singapore, Vietnam, Turkey, Austria, Belgium, Switzerland, Denmark, Hungary, Italy, Luxembourg, Holland, New Zealand, Poland, Sweden, Finland, Ireland, Portugal, Mexico, Greece, Brazil, Spain, South Africa. No PO box, please. If your country is not listed here, please kindly contact for the latest update.

Any other countries please use the express method or please contact me at for the shipping info.