Laptop Repair Reballing Machine
1. Model: DH-A2. 2. Laptop repair reballing machine with optical alignment and touch screen. 3. Infrared laser positioning help fast fix motherboards. 4. Available in stock. Welcome to order.
Automatic Optical Laptop Repair Reballing Machine
1.Application Of Automatic Optical Laptop Repair Reballing Machine
Work with all kinds of motherboards or PCBA.
Solder, reball, desoldering different kind of chips: BGA,PGA,POP,BQFP,QFN,SOT223,PLCC,TQFP,TDFN,TSOP, PBGA,CPGA,LED chip.
2.Product Features of Automatic Optical Laptop Repair Reballing Machine
3.Specification of Automatic Optical Laptop Repair Reballing Machine
4.Details of Automatic Optical Laptop Repair Reballing Machine
5.Why Choose Our Automatic Optical Laptop Repair Reballing Machine?
6.Certificate of Automatic Optical Laptop Repair Reballing Machine
UL, E-MARK, CCC, FCC, CE ROHS certificates. Meanwhile, to improve and perfect the quality system, Dinghua has passed ISO, GMP, FCCA, C-TPAT on-site audit certification.
7.Packing & Shipment of Automatic Optical Laptop Repair Reballing Machine
8.Shipment for Automatic Optical Laptop Repair Reballing Machine
DHL/TNT/FEDEX. If you want other shipping term, please tell us. We will support you.
9. Terms of Payment
Bank transfer, Western Union, Credit Card.
Please tell us if you need other support.
10. How DH-A2 Automatic Laptop Repair Reballing Machine work?
11. Related knowledge
Motherboard type classification
In the third year after the launch of the PC, in 1984, IBM announced PCAT. The size of the AT motherboard is 13" x 12", and the board integrates a control chip and eight I/O expansion slots. Due to the large size of the AT motherboard, the system unit (chassis) has been increased by 2 inches in the horizontal direction and by 1 inch in height. This change is also to support the new larger format AT format adapter card. The 8-bit data, 20-bit address XT expansion slot is changed to the 16-bit data, 24-bit address AT expansion slot. In order to maintain backward compatibility, it retains the 62-pin XT expansion slot and then adds a 36-pin expansion slot in the same column. The XT expansion card still uses the 62-pin expansion slot (31 feet on each side), and the AT expansion card uses two identical expansion slots of 98 feet. This PC AT bus structure evolution strategy allows it to still function on any PC Pentium/PCI system today.
The initial design of PC AT is to let the expansion bus run at the same clock rate as the microprocessor, that is, 6MHz 286, the bus is also 6MHz; 8MHz microprocessor, the bus is 8MHz. As the speed of the microprocessor increases, the speed of the expansion bus is also simple. Later, some PC AT systems achieved an expansion bus speed of 10 and 12 MHz. Unfortunately, some adapters don't work at this speed or work very well. Therefore, most PC ATs still use 8 or 8.33MHz as the speed of the expansion bus, and most of the adapters cannot work stably at this speed.
The AT motherboard is larger in size and can hold more components and expansion slots on the board. However, as the degree of integration of electronic components increases, motherboards of the same function no longer require full AT size. So in 1990, the Baby/Mini AT motherboard specification was introduced, referred to as the Baby AT motherboard.
Baby AT motherboard
It is inherited from the earliest XT motherboard. Its size is 15" x 8.5", which is slightly longer than the AT motherboard, and the width is much narrower than the AT motherboard. The Baby AT motherboard follows the I/O expansion slot of the AT motherboard, the peripheral interface of the keyboard socket and the placement of the components, and the internal component structure such as the memory slot is tightened, and the LSI is used to make the internal components. The reduction makes the Baby AT motherboard more compact and functional than the AT motherboard.
However, with the further development of computer hardware technology, there are more and more integrated functions on the computer motherboard. The Baby AT motherboard is a bit burdensome, and the AT motherboard is too large. So many motherboard vendors have adopted another compromise solution, namely one. In terms of canceling the use of fewer components on the motherboard to compress space (such as reducing the I / 0 expansion slot to 7 or even 6), on the other hand, the Baby AT motherboard is appropriately widened to increase the use area, which has formed a large number of Different sizes of Baby AT motherboards. Of course, these motherboards do not change the basic I/O slot, peripheral interface and motherboard mounting holes, making even the smallest Baby AT motherboards available on standard chassis. The size of the Baby AT motherboard is 3/4Baby AT motherboard (26.5cm × 22cm or 10.7" × 8.7"), using 7 I / 0 expansion slots.
Due to the irregularity of the Baby AT motherboard market and the obsolete AT motherboard structure, Intel announced the extension of the AT motherboard structure in January 1995, namely the ATX (AT extended) motherboard standard. This standard has been supported by the world's major motherboard manufacturers and is now the most widely accepted industry standard. In February 1997, the ATX version 2.01 was released.
ATX structure motherboard
The Baby AT structure standard is first manifested in the fact that the lateral width of the motherboard is too narrow (typically 22 cm), so that the space directly from the motherboard is too small. The number of external interfaces is greatly limited, which is an insurmountable shortcoming for a microcomputer with a stronger function and more external interfaces. Second, the location of the CPU and I/O slots on the Baby AT motherboard is unreasonable. Early CPUs had low performance due to low performance and low power consumption. Today's CPU performance is high, power consumption is large, in order to make its work stable, it must have a good heat sink, add heat sink or fan, thus greatly increasing the height of the CPU. In the AT structure standard, the CPU is located below the expansion slot, so that many full-length expansion cards can not be inserted or plugged in to hinder the CPU fan from running. The location of the memory is not reasonable. Early computer memory size was fixed and there were no special requirements for the installation location. The Baby AT motherboard is structured to put the memory slot under the power supply of the chassis. It is inconvenient to install or replace the memory module. The memory module has poor heat dissipation conditions. In addition, since the soft hard disk controller and the soft hard disk bracket have no specific position, the soft hard disk cable is too long, which increases the confusion of the internal connection of the computer and reduces the reliability of the computer. Even because the hard disk cable is too long, the speed of many high-speed hard disks is affected. The ATX motherboard has the following improvements for the shortcomings of the AT and Baby AT motherboards:
The shape of the motherboard was rotated 90 degrees on the basis of Baby AT, and its geometry was changed to 30.5cm × 24.4cm.
With 7 I/O slots, the CPU and I/O slots and memory slots are more reasonable.
Optimized the location of the soft hard drive interface.
Improve the compatibility and expandability of the motherboard.
With enhanced power management, the software's software on/off and green energy saving functions are realized.
The Micro ATX maintains the peripheral interface location on the ATX standard motherboard backplane and is compatible with ATX.
MATX structure motherboard
The Micro ATX motherboard reduces the expansion slot to 3-4 and the DIMM slot to 2-3. The board width is reduced from the lateral direction, and the total area is reduced by about 0.92 square inches, which is more compact than the ATX standard motherboard structure. According to the Micro ATX standard, graphics and audio processing should also be integrated on the board. The Micro ATX standard is used in many branded motherboards, and the Micro ATX motherboard is often seen in the DIY market.
BTX is short for Intel's new motherboard architecture, Balanced Technology Extended, which is a replacement for the ATX architecture. This is similar to ATX's replacement of AT and Baby AT in previous years. The revolutionary change is that the new BTX specification can achieve the smallest volume without sacrificing performance. The new architecture will have new requirements for interfaces, buses, and devices. What's important is that all the messy, messy, and noisy PCs will quickly become obsolete. Of course, the new architecture still provides some degree of backward compatibility in order to achieve a smooth transition of the technological revolution.
BTX has the following characteristics
Support Low-profile, that is, narrow-board design, the system structure will be more compact; for the heat dissipation and airflow movement, the circuit layout of the motherboard is optimized;
The motherboard will be easier to install and the mechanical properties will be optimized.
Moreover, BTX provides good compatibility. There are already several derivative versions of BTX available, divided into standard BTX (325.12mm), microBTX (264.16mm) and Low-profile picoBTX (203.20mm), and future Extended BTX for servers, depending on the width of the board. Moreover, the popular new buses and interfaces, such as PCI Express and Serial ATA, will also be well supported in BTX architecture motherboards.
It is worth mentioning that the new BTX motherboard will optimize the cooling system through the pre-installed SRM (Support and Hold Module), especially for the CPU. In addition, the heat dissipation system is also referred to as a thermal module in the terminology of BTX. Generally, the module includes a heat sink and an air flow passage. There are two types of thermal modules that have been developed, namely full-size and low-profile.
Thanks to the continuous application of new technologies, the future BTX motherboards will completely eliminate the traditional serial port, parallel port, PS/2 and other interfaces.
Mini-ITX is the motherboard specification that is mainly driven by VIA Technologies. The Mini-ITX motherboard can be used in a microATX or ATX chassis and measures 17 x 17 cm, just four mounting screws and one expansion slot. Due to the lack of scalability, Mini-ITX is mainly used in embedded systems. Intel also introduced a desktop system board that uses the Mini-ITX specification, which measures 171.45mm x 171.45mm, but is labeled "uATX" instead of Mini-ITX on the web page.
The ITX motherboard is much smaller and has more features than the normal ATX and mATX motherboards. ITX motherboard with integrated CPU can greatly reduce the cost of platform construction. Take Intel's integrated ATOM ITX motherboard as an example. The motherboard price is 499 yuan, plus 2G memory is about 150 yuan, and the power supply is about 150 yuan. For different users, the hard disk requirements. If the download user is equipped with a 1TB hard drive 599 yuan, the entire platform cost 1398 yuan, far more expensive than assembling a low-cost computer, and the price may be cheaper than the 1TB NAS sold in the market, the function More powerful than NAS.
3 North Bridge Chip Editor
The North Bridge is the most important component of the motherboard chipset, also known as the Host Bridge. In general, the name of the chipset is named after the name of the Northbridge chip. For example, the Northbridge chip of the Intel 965P chipset is 82965P, the Northbridge chip of the 975P chipset is 82975P, and so on. The North Bridge chip is responsible for the connection with the CPU and controls the memory, AGP, PCI-E data transmission inside the North Bridge, providing the type and frequency of the CPU, the front-side bus frequency of the system, the type of memory (SDRAM, DDR, DDR2, DDR3, etc. With support for maximum capacity, AGP slot, PCI-E slot, ECC error correction, the Northbridge chip of the integrated chipset also integrates the display core. Usually on the motherboard near the CPU socket, this is mainly due to the fact that the communication between the Northbridge chip and the processor is the closest, and the transmission distance is shortened in order to improve communication performance. Because the data processing capacity of the North Bridge chip is very large, the heat is also getting larger and larger. The North Bridge chip is covered with a heat sink to enhance the heat dissipation of the North Bridge chip. Some North Bridge chips of the motherboard will also be used with the fan for heat dissipation.
4 South Bridge Chip Editor
South Bridge is also an important part of the motherboard chipset. Mainly responsible for communication between the I/O bus and control of IDE devices. For example, the South Bridge chip that Intel's P35 chipset is equipped with is the ICH9 series, which is slightly the same according to the needs and positioning of the South Bridge.
5CPU socket editing
We know that the CPU needs to be connected to the motherboard through an interface to work. After so many years of development, the CPU uses interface methods such as pin type, card type, contact type, and pin type. The CPU interface is a pin-type interface, corresponding to the corresponding slot type on the motherboard. Different types of CPUs have different CPU sockets, so if you select a CPU, you must select the motherboard with the corresponding slot type. The CPU socket type of the motherboard is different. The number, volume, and shape of the jacks vary, so they cannot be plugged into each other.
Socket 775, also known as Socket T, supports Pentium 4, Pentium 4 EE, Celeron D and dual-core Pentium D, Pentium EE and Core architecture Corne processor CPUs, with whisker pins, through the corresponding contacts on the bottom of the CPU Get in touch with the signal, which is the mainstream CPU slot of the InTEL platform.
Socket AM2 is a slot standard for AMD 64-bit desktop CPUs that support DDR2 memory at the end of May 2006. It supports AMD Athlon 64 FX/Athlon 64 X2/Athlon 64/Sempron and other processors. Socket AM2 has 940 CPU pin jacks, supports 200MHz FSB and 1000MHz HyperTransport bus frequency, and supports dual channel DDR2 memory.
The Socket AM2+ pin is exactly the same as the current AM2, except that the HyperTransport bus is up to 3.0 and supports a working frequency of up to 2.6 GHz. The data transmission bandwidth will reach 5.2 GT/s or 20.8 GB/s at this frequency, which is the standard for AMD K10 processors. The slot is compatible with AM2.
6 memory slot editing
The memory slot is where the memory is installed on the motherboard. It should be noted that different types of memory slots have different pins, voltages, and performance functions. Different memories cannot be compatible with each other in different memory slots.
SDRAM is the abbreviation of Synchronous Dynamic Random Access Memory. It uses 3.3V working voltage, 168Pin DIMM interface, 64-bit bandwidth, PC66, PC100, PC133 and other specifications. There are two SDRAM memory gold fingers. gap.
DDR should be called DDR SDRAM is the abbreviation of Double Data Rate SDRAM, using 2.5V voltage, 184pin, there is a gap in the memory gold finger.
DDR2 (Double Data Rate 2) is a new generation memory technology standard developed by JEDEC (Joint Commission for Electronic Equipment Engineering). It is a mainstream memory type with a voltage of 1.8V and a pin count of 240pin. Although it has the same gap as DDR Goldfinger. However, the positions of the gaps are slightly different, so they are not compatible.
The DDR3 (Double Data Rate 3) voltage is 1.5V and the number of pins is 240pin.
7PCI slot editing
The PCI slot is an expansion slot based on a PCI local bus (Pedpherd Component Interconnect). Its bit width is 32 bits or 64 bits, the operating frequency is 33MHz, and the maximum data transfer rate is 133MB/sec (32 bit) and 266MB/sec (64 bit). Pluggable graphics card, sound card, network card, built-in Modem, built-in ADSL Modem, USB2.0 card, IEEE1394 card, IDE interface card, RAID card, TV card, video capture card and many other types of expansion cards.