| ASU21D4U5S8MB-8 | 9905428-087.A00LF | 9905402-664.A00LF | |
|---|---|---|---|
| For PC | Desktop | Laptop | Desktop |
| Interface | DIMM | SODIMM | DIMM |
| Size | 8192 MB | 8192 MB | 4096 MB |
| Type | DDR4 | DDR3 | DDR3 |
| Speed | 2133 MHz | 1600 MHz | 1333 MHz |
| Total Width | 64 bit | 64 bit | 64 bit |
What is DDR3 memory?
DDR3 is a computer memory specification. It belongs to the memory products of SDRAM family, providing higher operating efficiency and lower voltage than DDR2 SDRAM, and is the successor to DDR2 SDRAM.
CWD is used for write delay. Reset provides a command for super power saving function, which can stop the DDR3 SDRAM memory particle circuit and enter super power saving standby mode. ZQ is a new terminal resistance calibration function. This line pin provides ODCE (On Die Calibration Engine) for calibrating the internal termination resistance of ODT (On Die Termination). It also adds SRT (Self-Reflash Temperature) programmable temperature control memory clock function. The addition of SRT allows the memory particles to be optimized on temperature, clock and power management. It can be said that the power management function is performed in the memory, and the stability of the memory particles is greatly improved, ensuring that the memory particles will not be burnout due to high working clock. DDR3 SDRAM also added the Partial Array Self-Refresh (PASR) local bank refresh function, which can do more efficient data reading and writing for the entire memory bank to achieve power saving effects.
Many hardware names are usually named after the chip model, and each chip model has its own dedicated driver, so as long as you know the chip model used by the hardware, you can find the right driver. For example, if your graphics card is named: "AMD Radeon RX 580", while actually the core chip model used is: "Radeon RX 580", then enter "Radeon RX 580" or "RX 580" to find the driver.
If you have a laptop or an all-in-one PC, you can also use the product name to search, and then go to the download page which has all the drivers for this machine (including: graphics card, network card, sound card, etc.). For example, if your laptop product name is: "Dell A6-9220e Inspiron Flagship", then type "Dell A6-9220e" to find all the drivers for this laptop.
Search steps:1. Enter a keyword in the input box and click the "Search" button
2. In the query results, find the driver file you need, and click the download button
• Can't find the required driver files?
• Don't know how to find driver files?
• Unable to download driver files due to unstable network?
You can try using this driver file finder. The method of use is very simple. The program will automatically list all the driver files available for your current system. You can install drivers for devices that do not have drivers installed, and you can also upgrade drivers to the latest driver version for devices that have already installed drivers. Click here to download the driver finder.
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