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In addition, some microATX cases require the use of low-profile PCI cards [7] and use power supplies with non-standard dimensions. [ 8 ] Compared to Mini-ITX , microATX motherboards have a maximum of four expansion slots and four DIMM slots, as opposed to the single expansion slot and two DIMM (or SO-DIMM [ 9 ] ) slots on Mini-ITX motherboards.
Inside a gaming case during gameplay. 360° photograph. A full tower case. Accessories shown include: a fan controller, a DVD burner, and a USB memory card reader.. Cases can come in many different sizes and shapes, which are usually determined by the form factor of the motherboard since it is physically the largest hardware component in most computers. Consequently, personal computer form ...
A 20 % shorter variant of the ATX form factor. Compatible with most ATX cases, but has fewer slots than ATX, for a smaller power supply unit. Very popular for desktop and small form factor computers as of 2017. Mini-ATX: AOpen: 2005 150 × 150 mm (5.9 × 5.9 in) Mini-ATX is considerably smaller than Micro-ATX.
Holes on the edges of the plate fit over these bolts and the cover is fastened down with nuts or dogs. Vapor accidents can occur when pressure builds up in the tank below and the Butterworth cover is carelessly removed. [5] Butterworth hatches have been responsible for a number of marine losses. [6]
Comparison of the form factors for motherboards ATX, μATX (micro-ATX), DTX, mini-ITX and mini-DTX The DTX form factor is a variation of ATX specification [1] designed especially for small form factor PCs (especially for HTPCs) with dimensions of 8 × 9.6 inches (203 × 244 mm). [2]
Mini-ITX boards can therefore often be used in cases designed for ATX, micro-ATX and other ATX variants if desired. Mini-ITX motherboards have only one expansion slot. Earlier Mini-ITX motherboards had a standard 33 MHz 5V 32-bit PCI slot, whereas newer motherboards use a PCI Express slot.
That pressure difference moves air through the chassis, with air flowing to areas of lower pressure. Fans generally have two published specifications: free air flow and maximum differential pressure. Free air flow is the amount of air a fan will move with zero back-pressure.
The relationship between pressure and leakage air flow rate is defined by the power law between the airflow rate and the pressure difference across the building envelope as follows: [16] q L =C L ∆p n. where: q L is the volumetric leakage airflow rate expressed in m 3 h −1; C L is the air leakage coefficient expressed in m 3 h −1 Pa −n