Category: Motherboard

 

Solution of VT-x/AMD-V hardware acceleration is not available on your system

Solution of VT-x/AMD-V hardware acceleration is not available on your system

solution of VT-x/AMD-V hardware acceleration is not available on your system

“VT-x/AMD-V hardware acceleration is not available on your system. Certain guests (e.g. OS/2 and QNX) require this feature and will fail to boot without it.”

The solution of that could be enabling the virtualisation option from the Bios, the next image is example of enabling the virtualisation on HP laptop.

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Practice a compTIA A+ 220-801&220-901 exam

Practice a compTIA A+ 220-801&220-901 exam

Click here to visit CompTIA test exam.

Northbridge vs Southbridge

Northbridge vs Southbridge
The northbridge is an chip, integrated circuit responsible for communications by Front-Side Bus or FSB between the CPU, AGP, PCI express, and the memory slot. The northbridge is coonnected directly to the CPU. The northbridge is usually paired with a southbridge, also known as I/O controller hub. The southbridge is connected to onboard graphic controller, the PCI slots, the IDE, SATA,Ethernet, audio codec, serial and paralel port, flopy disk, keyboard, mouse.

The AMD64 AMD and the Intel Nehalem processors the memory controller was moved from the northbridge to he processor die. Later, the Intel “Sandy Bridge” and the AMD Accelerated Processing Unit processors placed all northbridge functions onto the CPU.

 

Motherboard, expansion bus

Motherboard: expansion bus

An expansion bus enables the CPU to communicate with any device plugged into an expansion slot. The most common types of expansion slots are:

  1. ISA. is an Industry Standard Architecture bus is an older technology that has been phased out in favor of faster technologies. An ISA expansion slot is black and has two sections, one of which is longer than the other. It can operate at speeds of up to 8 MB/s.Bus ISA
  2. PCI. Peripheral Component Interconnect bus was introduced by Intel in Pentium and newer computers, and rendered the ISA bus obsolete. The PCI cards are mostly Plug and Play, which means that system resource allocation occurs automatically.  A expansion slot is split into two sections, and is 3 inches long. It can operate at speeds of up to 133 MB/s.Bus PCI
  3. AGP Accelerated Graphics Port expansion slot was developed to connect video circuittry directly to a computer’s memory. It was popular for graphics cards. AGP ports are dark brown and look like regular PCI slots, except that they’re shorter. They can operate at speeds of up to 2 GB/s. They’re rarely used today due to popularity of PCIe
  4. PCIe