Desktop Computer Motherboard Memory Slot 2x DDR4 DIMM Memory RAM Test Diagnosis Adapter With LED Indicators Long Latch Test Card
Brand Name:BQZYX
Model Number:ZYX088
Minimum Order Quantity:50-100PCS
Delivery Time:10-15 work days
Payment Terms:T/T, Western Union
Place of Origin:CHINA
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Shenzhen China
Address:
3rd Floor, Building C, Jingchengda Industrial Park, Keji Fourth Road, Tangtou Community, Shiyan Street, Bao'an District, Shenzhen
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within 29 hours
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Product Details
Desktop Computer Motherboard Memory Slot 2x DDR4 DIMM Memory RAM Test Diagnosis Adapter With LED Indicators Long Latch Test Card.
Product specifications:
1. Applicable Scene: Desktop computer DDR4 memory test card is suitable for desktop computer DDR4 memory.
2. Computer Memory Failures: The failures of computer memory are mainly due to poor contact of the gold pins, wear and tear of the gold pins, broken PCBs, damage to the data line exclusion, open and short circuits in the video memory, and poor memory performance, etc.
3. LED Indicators: LED indicators are used to test all data lines of the memory, and the normal brightness is regarded as normal. When a hardware fault occurs in the loop of these data lines, bright or no light is abnormal.
4.Uses: If the test indicator flashes, it means that the gold pin is in poor contact. If there is no indicator light, it means that the hardware has an open circuit failure. Check the wear of the gold pin, whether the exclusion is damaged, and whether the PCB is disconnected.
5.Easy To Use: Insert the CR2032 battery into the battery holder of the test card, or connect the type C cable , and then insert the memory card to test.
Product Overview:
This product is a specially designed tester for desktop DDR4 memory
module testing needs, with significant features of precision,
efficiency, and convenience. It is equipped with two slots that
meet the specifications of desktop DDR4 memory modules, and
provides two flexible and diverse power supply modes: TYPE-C data
cable power supply and 3.6V button battery power supply. Combined
with an independent testing switch and an LED indicator system that
corresponds one-to-one with the gold finger pins of the memory
module, whether it is a computer repair technician, computer
hardware DIY enthusiast, or computer hardware manufacturer's
quality inspection process, it can quickly and accurately
troubleshoot various faults of desktop DDR4 memory modules,
ensuring the stable operation of the memory module and even the
entire computer system.
DDR4 memory slots typically contain 288 pins, divided into a main pin group and an auxiliary pin group | ||
| Power Pin | VDD | The main power supply voltage pin, typically 1.2V ± 0.060V, is used to power the core logic circuit of DDR4 memory. |
| VDDQ | The data signal power supply voltage pin, also 1.2V ± 0.060V, is specifically used for supplying power to data signal lines to reduce signal interference. | |
| VPP | The DRAM activation voltage pin, typically ranging from 2.5V to 0.125V/+0.250V, is used to provide additional voltage support during read and write operations in DRAM. | |
| VREFCA | The reference voltage pin is used to control, command, and address the reference voltage of the lines, ensuring that these signals maintain a stable voltage level during transmission. | |
| Ground pin | Examples such as VSS, VSSQ, and VSSR are used to convert signals into reliable digital signals, avoiding interference and errors. They are respectively connected to the system's ground plane to provide a stable grounding reference. | |
| Control signal pin | CS_n | Chip selection signal pin, used to select the DDR4 memory chip currently being operated on. |
| ACT_n | Activate command input pin, when low, it indicates that the DDR4 memory chip is in an active state and can accept read and write commands. | |
| RAS_n/A16,CAS_n/A15,WE_n/A14 | When CT_n is at a low level, it serves as the row address input pin; When ACT_n is at a high level, it serves as a command input pin, corresponding to the row select (RAS), column select (CAS), and write enable (WE) signals, respectively. | |
| ALERT_n | The alarm signal output pin is used to send an alarm signal to the system memory controller when the DDR4 memory chip detects an error or specific event. | |
| RESET_n | When the reset signal pin is low, the DDR4 memory chip will perform a reset operation. | |
| Clock signal pin | The differential clock signal (CK_t/CK-c) is used, provided by the DDR controller, to provide a timing reference for DDR4 memory operations, ensuring synchronization between the DDR4 memory chip and the system clock. | |
| Address signal pin | A(17:0) | Row and column address signal pins, used to specify row and column addresses in DDR4 memory, some pins can be functionally reused. |
| BA(1:0) | Bank address line pin, used to specify the bank address in DDR4 memory. | |
| BG(1:0) | Bank group address line pin, used to specify the Bank group address in DDR4 memory. | |
| Data signal pin | It usually contains multiple sets of data signal pins, each set having data input/output pins (DQ) and data mask pins (DM). For example, DQ (0:15) represents a 16 bit data line, UDQS_t/UDQS_c and LDQS_t/LDQS_c represent two sets of differential data gating signals, corresponding to the data transmission of DQ (15:8) and DQ (7:0), respectively. UDM-n/LDMn is the data mask pin associated with DQ (15:8) and DQ (7:0), used to control the mask operation of data transmission. | |
Product features:
Dual slot design, efficient detection: equipped with two desktop DDR4 memory module slots, greatly
improving the efficiency of product use. The slots are designed and
manufactured strictly in accordance with the DDR4 memory module
standard specifications. The internal gold finger contact points
are made of high-quality conductive alloy material, which has been
finely gold-plated to have extremely low contact resistance and
excellent oxidation resistance, ensuring that the memory module can
be tightly and stably connected after insertion, and accurately
adapting to the electrical characteristics of DDR4 memory modules,
laying a solid foundation for precise detection,
Flexible power supply, adaptable to diverse scenarios: Innovatively providing two ways of power supply: TYPE-C data cable
power supply and 3.6V button battery power supply, fully meeting
the power needs of different usage scenarios. The TYPE-C power
supply method has strong universality and can easily connect
various power devices such as computer USB ports, mobile phone
chargers, and portable power banks, providing sufficient power
guarantee for long-term, high-intensity testing operations in
indoor environments with stable power supply; The 3.6V button
battery power supply highlights its portability advantage. In
outdoor mobile maintenance and emergency situations without
external power sockets, it can still ensure the normal operation of
the tester. Users only need to toggle the power selection switch to
the corresponding position according to the actual situation to
easily switch the power supply mode, and the operation is simple
and convenient.
Intuitive and visual, precise fault location: Each carefully arranged LED bead on the tester corresponds
precisely to each foot position of the memory module's golden
finger, creating an extremely intuitive visual fault diagnosis
system. After starting the test, users can instantly obtain the
health status information of the memory module by observing the
status of the LED beads. If the LED light bulb flashes, it clearly
indicates that there is a poor contact problem with the memory
module's gold fingers, which may be caused by oxidation of the gold
fingers, dust or foreign objects in the slot, etc; If the LED light
bead does not light up, it indicates that there may be a hardware
open circuit fault, such as severe wear of the gold finger contact,
PCB circuit board breakage, etc. It helps users quickly identify
the fault point without complex professional knowledge, and can
preliminarily determine the fault type with naked eye observation,
greatly improving the speed and accuracy of fault diagnosis.
Independent switch, convenient control experience: equipped with an independent test switch, its design fully
considers ergonomic principles, comfortable operation feel,
moderate pressing stroke, and sensitive feedback. After the memory
module is correctly inserted and the power supply is ready, the
user only needs to gently press the test switch, and the tester
will immediately start the detection process. The entire operation
process is simple and clear, without the need for complicated setup
steps. Whether it is professional maintenance personnel or
beginners who are new to hardware detection, they can quickly get
started and easily control it, greatly improving the convenience of
use.
Product Structure and Interface Introduction:
DDR4 memory module slot: Both slots are designed strictly according to the physical
dimensions and electrical specifications of desktop DDR4 memory
modules. The contact area of the gold finger inside the slot adopts
a special dovetail groove structure design, which not only
effectively fixes the memory module to prevent it from loosening or
displacement during testing, but also ensures that the gold finger
is tightly adhered to the contact point in all directions,
achieving reliable electrical connection. The slot is equipped with
sturdy and durable buckle devices around it. Through clever
mechanical structure design, when the memory module is inserted
into place, the buckle can automatically lock, ensuring that the
memory module is stable in the slot and convenient for users to
disassemble, providing convenience and reliability guarantee for
frequent memory module insertion and extraction testing operations.
Power supply interface and switch:
TYPE-C interface: Designed in accordance with the universal TYPE-C standard
specifications, its internal pin layout is precise and error free,
using high-quality metal materials to create contact points with
excellent conductivity and signal transmission capabilities. The
interface shell is made of metal material and grounded to
effectively block external electromagnetic interference, ensuring
power supply stability and data transmission integrity. At the same
time, in order to adapt to different types of TYPE-C power cables,
the external dimensional tolerance of the interface is controlled
within a very small range, making it easy for users to connect
various external power devices such as computers, mobile phone
chargers, etc., providing stable and continuous power input for the
tester.
3.6V button battery holder: The design is compact and reasonable, fully considering the
installation convenience and stability of button batteries. The
battery holder uses highly elastic metal spring plates as electrode
contacts inside, which can ensure a tight fit of the button battery
after installation, prevent loosening and poor contact, and
facilitate users to quickly replace the battery. The shell of the
battery holder is made of insulating material, effectively
preventing safety hazards such as battery short circuits, and
providing reliable protection for using button batteries for power
supply in mobile scenarios.
Power selection switch: Select high-quality toggle switches with clear gear sense and
crisp operating feel. Through precise internal circuit connections,
the switching between TYPE-C power supply and button battery power
supply modes can be accurately controlled, ensuring that only the
selected power supply method is connected to the circuit, avoiding
power conflicts, and ensuring the safe and stable operation of the
tester. The external identification of the switch is clear and easy
for users to intuitively know the current power supply level,
making it convenient to operate.
LED bead array: composed of multiple high brightness, low-power LED beads arranged
according to specific rules, corresponding one-to-one with the foot
positions of the memory module's gold fingers. The lamp bead,
through carefully designed internal circuit connections, can
convert the electrical status of the memory module pins into visual
light signals in real time and accurately. The lamp beads are made
of long-lasting and highly stable packaging materials, ensuring
reliable illumination during long-term and frequent testing
processes, providing users with continuous and accurate detection
indicators, and helping users quickly determine the fault status of
the memory module.
Independent test switch *: Designed with a micro switch, it has
fast response characteristics and can trigger the testing
instrument to start the detection program at the moment of
pressing. The outer shell of the switch is made of insulating
material to prevent accidental short circuits. The internal
contacts are gold-plated to ensure conductivity and reliability
after multiple presses, ensuring smooth start-up of the testing
process. At the same time, the installation position of the switch
is reasonable, making it easy for users to operate. Whether
operated with one or both hands, the switch can be easily pressed
to start the test.
Independent testing switch: Designed with a micro switch, it has fast response characteristics and can trigger the testing instrument to start the detection program at the moment of pressing. The outer shell of the switch is made of insulating material to prevent accidental short circuits. The internal contacts are gold-plated to ensure conductivity and reliability after multiple presses, ensuring smooth start-up of the testing process. At the same time, the installation position of the switch is reasonable, making it easy for users to operate. Whether operated with one or both hands, the switch can be easily pressed to start the test.
Performance advantages:
Accurate fault diagnosis: With the LED indicator system that accurately corresponds to the
gold finger foot position of the memory module, it is possible to
quickly locate the faulty part of the memory module with extremely
high accuracy. Whether it is slight oxidation and wear of the
golden finger caused by daily use, or hidden faults such as PCB
circuit breakage caused by accidental collision, aging, etc., they
can be exposed in the first time through intuitive light bead
status, providing clear direction for subsequent maintenance and
component replacement, greatly shortening the fault investigation
time, improving maintenance efficiency, and effectively reducing
maintenance costs.
Wide range of scenario adaptation: The dual guarantee of TYPE-C data cable power supply and 3.6V
button battery power supply ensures that it is not limited to usage
scenarios. Whether in computer repair shops equipped with complete
power sockets, hardware laboratories, or temporary office spaces
without external power supply for outdoor repairs, users can
flexibly choose the power supply method according to the actual
situation, ensuring that the tester is available at any time,
enhancing the practicality and adaptability of the product in
different environments, and meeting the needs of various user
groups.
Efficient Batch Testing: The design of two desktop DDR4 memory module slots enables
simultaneous testing of two memory modules in batch testing
scenarios, such as quality inspection by computer hardware
manufacturers or when dealing with a large number of computers sent
for repair by computer repair shops. Compared to single slot
testers, the testing efficiency is greatly improved, effectively
saving time and costs, improving work efficiency, and providing
strong support for large-scale memory module testing operations.
Convenient operation experience: From inserting the memory module, selecting the power supply, to
starting the test, the entire operation process is simple and
clear. The independent test switch and intuitive LED light feedback
allow users to quickly complete the inspection without complex
professional knowledge and cumbersome settings, reducing the
threshold for use. It is especially suitable for novice computer
maintenance and scenarios that require frequent inspection of
memory modules, such as daily order acceptance inspection in
computer repair shops, greatly improving work efficiency.
Usage:
Choose power supply method: Based on the environment and actual needs, if you are indoors and
close to devices such as computers and power sockets, prioritize
the TYPE-C data cable power supply method. Connect one end of the
TYPE-C power cord to the TYPE-C interface of the tester, and the
other end to a suitable power device, such as the USB interface of
a computer or the TYPE-C output port of a mobile phone charger.
Then turn the power selection switch to the TYPE-C power mode; If
in an emergency situation where there is no external power source
in outdoor mobile scenes, use a 3.6V button battery for power
supply. Open the battery holder cover, place the button battery in
the correct positive and negative directions into the battery
holder, ensure that the battery is installed firmly, and then turn
the power selection switch to the button battery power supply
position.
Insert memory module: Gently open the DDR4 memory module slot buckle on the tester,
align the gold finger of the desktop DDR4 memory module to be
tested with the slot, and insert slowly and steadily, paying
attention to the correct insertion direction to avoid forcefully
inserting and damaging the gold finger. Until the memory module is
fully inserted and the buckle automatically tightens, ensure that
the memory module is tightly connected to the slot to ensure the
accuracy of the test results. To test two memory modules
simultaneously, repeat this step and insert the other memory module
into another slot.
Start test: After inserting the memory module and preparing the power supply,
press the independent test switch, and the tester will immediately
start the detection process. At this time, pay close attention to
the illumination of the LED bead array. Under normal circumstances,
all LED chips corresponding to the normal pins of the memory module
should light up steadily; If a flashing light bead is found, it
indicates that there is a poor contact problem with the
corresponding memory module's gold finger. Further inspection is
needed to check whether the gold finger is oxidized and whether
there are dust or foreign objects in the slot; If a certain LED
bead does not light up, it indicates that there may be a hardware
open circuit fault, such as severe wear of the gold finger
contacts, PCB board breakage, etc. Further disassembly and
inspection of the memory module is required.
Result judgment and subsequent processing: According to the LED indicator, if all the pins corresponding to
the memory module are lit up normally, it indicates that the basic
function of the memory module is normal; If there are abnormal
situations such as flashing or not lighting up of the LED, record
the corresponding pin number of the abnormal LED, and based on the
known DDR4 memory module circuit principle and common fault causes,
preliminarily determine the fault type, such as poor contact, open
circuit fault, etc. For poor contact faults, you can try using an
eraser to gently wipe the gold fingers of the memory module, remove
the oxide layer, and then reinsert for testing; For open circuit
faults, it is necessary to further inspect the wear of the gold
finger contacts, check for damage, and check if the PCB is
disconnected. If necessary, replace the memory module.
Applicable scenarios:
Daily operation and maintenance of computer repair shops: In computer repair shops, faced with a large number of desktop
computers sent for repair, repair personnel need to quickly
determine whether the memory module is faulty. This tester, with
its fast and accurate detection capabilities, can test DDR4 memory
modules of different brands and models of desktop computers in a
short period of time. Through intuitive LED indicators, it can
quickly locate faults, whether it is gold finger oxidation caused
by aging or overheating, or PCB damage caused by accidental
collisions, it can efficiently detect and greatly improve the
efficiency of repair shop order processing, reducing customer
waiting time.
Computer hardware manufacturer quality inspection: On the computer hardware production line, strict quality testing
is required after the memory module assembly process to ensure the
reliable performance of each memory module produced from the
factory. The dual power supply mode and dual slot design of this
tester enable it to seamlessly integrate into the production line,
meeting the large-scale and high-efficiency quality inspection
needs. Through automated or semi automated operations, defective
memory modules can be quickly screened to ensure product quality
and enhance brand reputation.
Computer DIY enthusiasts self check: DIY enthusiasts often worry about compatibility or quality issues
when upgrading or replacing desktop memory modules on their own. By
using this tester, they can easily check whether the memory module
is working properly at home. Whether it is upgrading the memory
module of an old computer or trying out a newly purchased memory
module, problems can be detected in a timely manner through simple
operations, avoiding the trouble of the computer not starting
properly due to memory module failures and improving the DIY
experience.
Package contents:
1 x DDR4 Memory Tester.
1x Type C cable.
4x PCB Spacer.
Desktop Computer Motherboard Memory Slot 2x DDR4 DIMM Memory RAM Test Diagnosis Adapter With LED Indicators Long Latch Test Card
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