If you are using the SSD as a data drvie, please access the "Disk Management" to check whether the SSD is properly installed under Win XP/Vista/7/8/8.1/10 operating systems. If the SSD is used as OS drive, please double confirm if you install this SSD properly and if the SSD is compatible with your computer OS specification.Ģ. Please refer to the possible reason and soultion below:ġ. Why the computer cannot recognize the SSD? Use an eraser to clean the pins of dust or grime. How do I clean dust or grime on the contact pins? Please also be aware that you must turn the computer off before installing or removing the modules. Please make sure the memory module is correctly oriented that the notch of the module matches the memory slot, and then gently push the module straight down to the slot. How do I plug the memory module into the memory slot of the motherboard? Different chipsets support different maximum frequency. Please check the specifications of your motherboard to see if there is any limitation on memory frequency. Why can't the module perform at the stated frequency? It is not recommended to use different specification modules together since the system might go wrong or not boot when BIOS detects different module SPD settings. May different specification modules be used together if not under the dual channel purpose? Users must install the two modules in the specific DIMM slots to enable dual channel function to have a stable usage. Transfer speed increases as the memory bus capacity increases from 64 bit to 128 bit. Because a dual-channel memory is connected to the memory controller through a series of wires, it requires two sets of memory modules with the same capacity and electrical specification. What is a dual-channel memory module? Are there any limitations on the use?ĭual-channel memory modules are two memory modules with the same specification, capacity and serial number in the same package. In general, a module with a smaller CL value is made with more advanced manufacturing processes, and the price is relatively higher. One CL9 module takes 9 clock ticks to prepare to read or write data from when the command is received. We suggest that you inquire the manufacturer about the supported memory module specifications and maximum capacity.Ĭolumn Access Strobe (CAS) latency, or CL, is the time of delay or preparation when data is being read or written. System chipset may not support the memory IC's identity. Please make sure contact pins are clean and free from rust and dust.ģ. Please make sure if the memory modules are installed properly, if not, please try to reinstall.Ģ. Why does my computer become unstable and keep beeping after installing memory module?ġ. Secondly, the incompatibility also due to different voltages that DDR4, DDR3, DDR2 and DDR1 respectively works at 1.2V, 1.5V (or 1.35V for low-voltage version), 1.8V and 2.5V. Firstly, each module has different pin numbers (DDR4 with 288 pins and DDR3/DDR2 with 240 pins )and different notch positions, so they can be installed in repective socket only. No, DDR4 and DDR3 are not backward compatible with DDR2 and DDR1 for the following reasons. If possible, please try to install the suspected memory module on another laptop/desktop to check if the problem is related to the motherboard.Īre DDR4 and DDR3 backward compatible with DDR2 and DDR1? We recommend that you install the suspected memory module separately to check if the problem is related to the memory module or the compatibility.Ĥ. Please make sure the memory modules are installed properly by referring to the official user manual.ģ. Use the compatability tool on the Silicon Power website at does my computer only recognize half the DRAM capacity?ġ.
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