The graphics processing unit GPU on most modern graphics cards also require a heatsink and one or more fans. The Molex part number of receptacle is While in earlier personal computers it was possible to cool most components using natural convection passive coolingmany modern components require more effective active cooling.
The Molex part number of the individual crimp contacts is It is not uncommon to find five or more fans in a modern PC.
Bearing types[ edit ] The type of bearing used in a fan can affect its performance and noise. The PSU is mainly bottom-mounted in modern PCs, having its own dedicated intake and exhaust vents, preferably with a dust filter in its intake vent.
Laptop computers lack large openings in the case for warm air to escape. Other purposes[ edit ] Fans are, less commonly, used for other purposes such as: As the PSU temperature rises, the conductivity of its internal components decrease.
Alternatives[ edit ] If a fan is not desirable, because of noise, reliability, or environmental concerns, there are some alternatives. The relative importance of static pressure depends on the degree to which the airflow is restricted by geometry; static pressure becomes more important as the spacing between heatsink fins decreases.
S2 B and C. Fans that use sleeve bearings are generally cheaper than fans that use ball bearings, and are quieter at lower speeds early in their life, but can become noisy as they age.
The bearing has a spiral groove in it that pumps fluid from a reservoir. The Molex part number of individual crimp contacts is Four-pin Molex connector This connector is used when connecting the fan directly to the power supply.
Decreased conductivity means that the PSU will convert more of the input electric energy into thermal energy heat. Fan control is not always an automatic process. Active cooling on CPUs started to appear on the Inteland by was standard on all desktop processors. Hard drives can produce considerable heat over time, and are heat sensitive components that should not operate at excessive temperatures.
This is the same connector as used on hard drives before the SATA became standard. The laptop may be placed on a cooler - somewhat like a tray with fans built in - to ensure adequate cooling. The size and spacing of the pin sockets is identical to a standard three-pin female IC connector and three-pin Molex connector.MBA Assignment- A Case Study on DELL.
may not necessarily provide a competitive edge like in the case of Dell. However other companies such as Wal-Mart, Target, Best Buy. Harvard & HBR Business Case Study Solution and Analysis Online - Buy Harvard Case Study Solution and Analysis done by MBA writers for homework and assignments.
All of the solutions are custom written and solved individually once orders are placed. A computer fan is any fan inside, or attached to, a computer case used for active cooling, and may refer to fans that draw cooler air into the case from the outside, expel warm air from inside, or move air across a heat sink to cool a particular component.
Generally these are found in axial and sometimes centrifugal forms. The former is sometimes. dell case study submitted to: submitted by:mr.
supratik ghatak raminder pal singh 2. INTRODUCTIONDell was founded in by Michael Dell, the computerindustrys longest-tenured chief executive officer, on a simpleconcept: that by selling computer systems directly tocustomers, Dell could best understand their needs andefficiently.
Get the latest science news and technology news, read tech reviews and more at ABC News. Case Study of Dell: Inspiring the leadership Inat the age of 19, Michael Dell founded Dell Computer with a simple vision and business concept—that personal computers could be built to order and sold directly to customers.Download