Second RAM slot is not working! I try put there 2 different DDR3 (original Samsung and Kingston). Both of them working fine in the first slot. But not working in the second one. Not working separate in second one, and not working together with the first slot. First slot separate working fin. Asus M5A78L-M LX3 Desktop Motherboard - AMD 760G Chipset - Socket AM3+ Number of Memory Slots: 2×240pin Memory Standard: DDR3 1866/1600/1333/1066 PCI Express 2.0 x16: 1 x PCI Express 2.0 x16.

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DDR3 vs DDR4

This article presents you a comparison between DDR3 and DDR4, highlighting the important differences between both RAMs. However, before delving into the difference between DDR3 and DDR4, let us see the specifications of both RAMS. As a matter of fact, DDR, which stands for Double Data Rate, is a specification used for RAM. DDR4 is the successor of DDR3 and hence consists of improvements in factors such as power consumption, size, speed and efficiency. DDR4, which was released this year, is still not much famous in the market but, in the next year, it will soon outstand DDR3. DDR4 RAMs consume less power than DDR3, but their speed is much higher. Also, the memory density allowed is higher in DDR4. The physical length of DDR3 and DDR4 are the same, but they are not backward compatible as the standard is different. Therefore, the notch in DDR3 and DDR4 are at different places and a DDR4 module will not fit into a DDR3 socket and vice versa.

Memory Standard: DDR3 1333/1066/800 The chipset officially supports the memory frequency up to DDR3 1066MHz. Tuned by ASUS Super Memspeed Technology, this motherboard natively supports up to DDR3 1333MHz; Number of Memory Slots: 4×240pin; PCI Express x16: 2 x PCI-E x16 (blue @ x16 mode, black @ x4 or x1 mode) Audio Chipset: ADI AD1988B.

What is DDR3?

DDR3, which stands for Double Data Rate Type 3, is a type of Dynamic Random Access Memory (DRAM) that came as the successor of DDR and DDR2. It was released to the market in 2007 and today almost all computers and laptops in the market uses DDR3 as the RAM. The voltage specification for DDR is 1.5 V and, therefore, it consumes very less power when compared to its predecessors. DDR3 standard allows chips up to capacity 8 GB. DDR3 RAM are available for different frequencies such as 800, 1066, 1333, 1600, 1866, 2133 MHz. A DDR3 RAM module used for personal computers has 240 pins and the length is 133.35 mm. The DDR3 modules used on laptops are called SO-DIMM and its length is much smaller with a length of 67.6 mm and less number of pins that is 204 pins. There is a special version of DDR3 RAMs called DDR3 low voltage standard, which uses just 1.35 V instead of 1.5 V and is used in some mobile devices to achieve better battery life.

What is DDR4?

DDR4 was introduced this year (2014) as the successor to DDR3. Still DDR4 is not much famous in the market because it was just released a few month ago and hence the motherboards in the market still supports only DDR3. However, after a few months , DDR4 will surely take over DDR3. DDR4 stands for Double Data Rate Type 4 and it has several advancements and improvements over DDR3. DDR4 supports higher memory densities up to 16 GB. The frequency in which DDR4 modules are available is higher than what DDR3 supports and the values available are 1600, 1866, 2133, 2400, 2667, 3200 MHz. The power consumption is further reduced as the voltage specification is 1.2 V. The lengths of DDR4 modules are same as the respective lengths of DDR3 module, but the number of pins is increased. The version used for PCs have 288 pins while the SO-DIMM modules used for laptops have 260 pins. A Low voltage standard DDR4 RAM, which would use about 1.05 V, will be available targeting for mobile devices that needs better power efficiency.

What is the difference between DDR3 and DDR4?

• DDR4 is the successor of DDR3.

• DDR3 was introduced back in 2007 while DDR4 was introduced in 2014.

• DDR3 supports memory densities only up to 8 GB, but DDR4 supports memory densities up to 16 GB.

• The speeds or the frequency of DDR4 RAMs are much higher than the frequency of DDR3 modules. This makes DDR4 much faster by providing better transfer rate.

• DDR3 works at a voltage of 1.5V while DDR4 works at a lesser voltage, which is 1.2V making it more power efficient.

• There is a special version of both DDR3 and DDR4 called low voltage standard, which uses lesser voltage hence lesser power. The low voltage standard of DDR3 uses 1.35V while it is 1.05V for DDR4.

• DDR3 modules have only 240 pins, but DDR4 modules have 288 pins.

• Both DDR3 and DDR4 have a smaller sized module known as SO-DIMM used for mobile devices such as laptops. SO-DIMM DDR3 has 204 pins while SO-DIMM DDR4 has 260 pins.

• DDR3 memory modules are not compatible with DDR4 slots and DDR4 modules are not compatible with DDR3 slots.

• The notch in the DDR3 and DDR4 is placed at different places so that they will not be mistakenly fixed to wrongs slots.

• DDR3 supports only 8 internal memory banks, but DDR4 supports 16 memory banks.

Summary:

DDR4 vs DDR3

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DDR4 being the successor of DDR3 has various improvements. The speed or the frequency of the RAM modules have been much increased in DDR4 giving better transfer rate. A DDR4 module can have a size of 16 GB while this limited to 8 GB for DDR3. However, the power consumption of DDR4 is much less with a 1.2 V voltage used instead of 1.5 V. Therefore, it would be much power efficient providing better battery life for mobile devices. DDR4 memory modules are not compatible with DDR3 slots and vice versa hence the slot on the motherboard determines which type of RAM must be fixed. Currently, the board manufacturers use DDR3 slots but , in the next years, it will transform to DDR4.

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Images Courtesy:

1. DDR3 via Pixabay

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2. Transcend_DDR400_TS64MLD64V4J By Solomon203 (Own work) [CC BY-SA 3.0 or GFDL], via Wikimedia Commons

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• - ASRock Cloud
• - Supports Socket FM2+ 95W / FM2 100W processors
• - AMD A78 FCH (Bolton-D3)
• - Dual Channel DDR3 Memory Technology
  - 2 x DDR3 DIMM Slots
  - Supports DDR3 1866/1600/1333/1066 non-ECC, un-buffered memory
  - Max. capacity of system memory: 32GB*
  - Supports Intel^® Extreme Memory Profile (XMP) 1.3 / 1.2
  - Supports AMD Memory Profile (AMP)
  

  *Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows^® 32-bit OS. For Windows^® 64-bit OS with 64-bit CPU, there is no such limitation.
• - 64Mb AMI UEFI Legal BIOS with GUI support
  - Supports 'Plug and Play'
  - ACPI 1.1 Compliant wake up events
  - Supports jumperfree
  - SMBIOS 2.3.1 support
  - DRAM, CPU Voltage multi-adjustment
• - Integrated AMD Radeon™ R7/R5 Series Graphics in A-series APU
  - DirectX 11.1, Pixel Shader 5.0 with FM2+ CPU. DirectX 11, Pixel Shader 5.0 with FM2 CPU.
  - Max. shared memory 2GB
  - Three graphics output options: D-Sub, DVI-D and HDMI Ports
  - Supports Triple Monitor
  - Supports HDMI with max. resolution up to 4K x 2K (4096x2160) @ 24Hz*
  - Supports Dual-link DVI-D with max. resolution up to 2560x1600 @ 60Hz
  - Supports D-Sub with max. resolution up to 1920x1200 @ 60Hz
  - Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI Port (Compliant HDMI monitor is required)
  - Supports Blu-ray Stereoscopic 3D with HDMI Port
  - Supports AMD Steady Video™ 2.0: New video post processing capability for automatic jitter reduction on home/online video
  - Supports HDCP with DVI-D and HDMI Ports
  - Supports Full HD 1080p Blu-ray (BD) playback with DVI-D and HDMI Ports
  

  *Only FM2+ APU can support up to 4096x2160 resolution display VIA^® HDMI port
• - 5.1 CH HD Audio (Realtek ALC662 Audio Codec)
• - PCIE x1 Gigabit LAN 10/100/1000 Mb/s
  - Realtek RTL8111FR
  - Supports Realtek RealWoW! Technology
  - Supports Wake-On-LAN
  - Supports LAN Cable Detection
  - Supports Energy Efficient Ethernet 802.3az
  - Supports PXE
• - 1 x PCI Express 3.0 x16 Slot (PCIE1 @ x16 mode)
  - 1 x PCI Express 2.0 x1 Slot
  - 1 x PCI Slot
  - Supports AMD Dual Graphics
  

  *PCIE 3.0 is only supported with FM2+ CPU. With FM2 CPU, it only supports PCIE 2.0.
• - 6 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug
• - 1 x Print Port Header
  - 1 x COM Port Header
  - 1 x Chassis Intrusion Header
  - 1 x TPM Header
  - 1 x CPU Fan Connector (4-pin)
  - 1 x Chassis Fan Connector (4-pin)
  - 1 x Power Fan Connector (3-pin)
  - 1 x 24 pin ATX Power Connector
  - 1 x 4 pin 12V Power Connector
  - 1 x Front Panel Audio Connector
  - 2 x USB 2.0 Headers (Support 4 USB 2.0 ports)
  - 1 x USB 3.1 Gen1 Header by AMD A78 FCH (Bolton-D3) (Supports 2 USB 3.1 Gen1 ports)
• - 1 x PS/2 Mouse Port
  - 1 x PS/2 Keyboard Port
  - 1 x D-Sub Port
  - 1 x DVI-D Port
  - 1 x HDMI Port
  - 4 x USB 2.0 Ports
  - 2 x USB 3.1 Gen1 Ports (AMD A78 FCH (Bolton-D3))
  - 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
  - HD Audio Jacks: Line in / Front Speaker / Microphone
• - ASRock A-Tuning
  - ASRock APP Shop
  - ASRock Instant Boot
  - ASRock Instant Flash
  - ASRock APP Charger
  - ASRock XFast LAN
  - ASRock XFast RAM
  - ASRock Crashless BIOS
  - ASRock OMG (Online Management Guard)
  - ASRock Internet Flash
  - ASRock UEFI System Browser
  - ASRock UEFI Tech Service
  - ASRock Dehumidifier Function
  - ASRock Easy RAID Installer
  - ASRock Easy Driver Installer
  - ASRock Interactive UEFI
  - ASRock Fast Boot
  - ASRock X-Boost
  - ASRock Restart to UEFI
  - ASRock USB Key
  - ASRock FAN-Tastic Tuning
  - Hybrid Booster:
  - ASRock U-COP
• - Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar, Start8 (30 days trial)
• - Quick Installation Guide, Support CD, I/O Shield
  - 2 x SATA Data Cables
• - CPU temperature sensing
  - Chassis temperature sensing
  - CPU Fan Tachometer
  - Chassis Fan Tachometer
  - CPU, Chassis Quiet Fan
  - CPU, Chassis Fan multi-speed control
  - CASE OPEN detection
  - Voltage monitoring: +12V, +5V, +3.3V, Vcore
• - Micro ATX Form Factor
  - All Solid Capacitor design
• - Microsoft^® Windows^® 10 32-bit / 10 64-bit / 8.1 32-bit / 8.1 64-bit / 8 32-bit / 8 64-bit / 7 32-bit / 7 64-bit
  

  *Carrizo FM2r2 processor supports Windows^® 10 64-bit / 8.1 64-bit / 7 32-bit / 7 64-bit only.
• - FCC, CE
  - ErP/EuP ready (ErP/EuP ready power supply is required)