| Socket 478 | ||
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| Specifications | ||
|---|---|---|
| Type | PGA-ZIF | |
| Chip form factors | Flip-chip pin grid array (FC-PGA2 or FC-PGA4) | |
| Contacts | 478 (not to be confused with the new Socket P that also uses 478-pins) | |
| Bus Protocol | AGTL+ | |
| FSB | 400 MT/s 533 MT/s 800 MT/s |
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| Voltage range | ||
| Processors | Intel Pentium 4 (1. Flip-chip pin grid array ( FC-PGA or FCPGA) is a form of Pin grid array processor architecture package in which the die The Intel Socket P is the mobile Processor socket replacement for the new Intel Core 2 chips The Pentium 4 brand refers to Intel 's line of single- core mainstream desktop and Laptop Central processing units (CPUs introduced 4 - 3. 4 GHz) Intel Celeron (1. The Celeron brand is a range of X86 CPUs from Intel targeted at budget/value Personal computers €”with the motto "delivering great quality 7 - 2. 8 GHz) Celeron D (2. The Celeron brand is a range of X86 CPUs from Intel targeted at budget/value Personal computers €”with the motto "delivering great quality 13 - 3. 2 GHz) Intel Pentium 4 Extreme Edition (3. The Pentium 4 brand refers to Intel 's line of single- core mainstream desktop and Laptop Central processing units (CPUs introduced 2, 3. 4 GHz) |
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This article is part of the CPU socket series |
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In computing, Socket 478 is a type of CPU socket used for Intel's Pentium 4 and Celeron series CPUs. A CPU socket or CPU slot is a connector on a computer's Motherboard that accepts a CPU and forms an electrical interface with it Computing is usually defined like the activity of using and developing Computer technology Computer hardware and software. A CPU socket or CPU slot is a connector on a computer's Motherboard that accepts a CPU and forms an electrical interface with it The Pentium 4 brand refers to Intel 's line of single- core mainstream desktop and Laptop Central processing units (CPUs introduced The Celeron brand is a range of X86 CPUs from Intel targeted at budget/value Personal computers €”with the motto "delivering great quality Socket 478 was phased out with the launch of LGA775.
Socket 478 has been used for all of the Northwood Pentium 4s and Celerons, the first Prescott Pentium 4s, and some Willamette Celerons and Pentium 4s. Socket 478 also supports newer Prescott Celeron Ds, and early Pentium 4 Extreme Edition processors with 2MB of L3 cache and some Core Duos. In Computer science, a cache (kæʃ like "cash") is a collection of data duplicating original The Core brand refers to Intel 's 32-bit mobile Dual-core X86 CPUs that derived from the Pentium M branded processors The socket was launched with the Northwood core to compete with AMD's 462-pin Socket A and their Athlon XP processors. Socket A (also known as Socket 462) is the CPU socket used for AMD processors ranging from the Athlon Thunderbird to the Athlon is the brand name applied to a series of different X86 processors designed and manufactured by AMD. Socket 478, which accommodates high and low-end processors, was also the replacement for Socket 423, a Willamette processor socket which remained in the market for only a short time. Socket 423 was a CPU socket used for the first Pentium 4 processors, based on the Willamette core
Motherboards that use this socket support DDR, RDRAM, and in some cases SDRAM. In Computing, a Computer bus operating with double data rate transfers data on both the rising and falling edges of the Clock signal. Direct Rambus DRAM or DRDRAM (sometimes just called Rambus DRAM or RDRAM) is a type of synchronous dynamic RAM, designed by the Rambus SDRAM refers to synchronous Dynamic random access memory, a term that is used to describe dynamic random access memory that has a synchronous interface However, the majority of boards are DDR based. Initial motherboards supported only RDRAM. However, RDRAM is quite expensive compared to DDR and SDRAM and consumers demanded an alternative; thus DDR and SDRAM boards were made. Later revisions to chipsets that support Socket 478 added higher FSB speeds, higher DDR speeds, and support for dual channel DDR.
Like the previous Socket 423, Socket 478 is based on Intel's Quad Data Rate technology, with data transferring at four times the clock rate of its front side bus. As such, the 400 MT/s bus was based on a 100 MHz clock signal, but was still able to provide 3. 2 GB/s of data to the chipset. At its release, no SDRAM product was capable of supporting so high a data rate, so Intel pushed forward RDRAM technology, with two channels of PC800 providing synchronous data capability. Poor consumer acceptance of expensive RDRAM lead Intel to release low-performance PC133-supporting chipsets, and finally DDR chipsets.
While the original 400 MT/s bus matched the data rate of PC3200, this bus speed was already outdated by the time PC3200 became available. Dual-channel memory was introduced on later chipsets, so that a matched pair of PC3200 modules was able to match the final 800 MT/s FSB.
Celeron Ds are also available for Socket 478 and are the only CPUs still made for the socket. The Celeron brand is a range of X86 CPUs from Intel targeted at budget/value Personal computers €”with the motto "delivering great quality They use a quad-pumped 133 MHz bus giving a 533 MT/s FSB. They are available with 256 KB L2 Cache and are built on the 90 nm manufacturing process, using the Prescott core. In Computer science, a cache (kæʃ like "cash") is a collection of data duplicating original
While the Intel mobile CPUs are available in 478-pin packages, they in fact only operate in a range of slightly differing sockets, Socket 479, Socket M, and Socket P, which are also incompatible with each other. Socket 479 is the CPU socket for the Intel Pentium M and Celeron M, Mobile processors normally used in laptops as well as Socket M is a CPU interface introduced by Intel in 2006 for the Intel Core line of mobile processors. The Intel Socket P is the mobile Processor socket replacement for the new Intel Core 2 chips
Socket 478 mechanical load limits
All socket 478 processors (Pentium 4 and Celeron) have the following mechanical maximum load limits which should not be exceeded during heatsink assembly, shipping conditions, or standard use. Load above those limits will crack the processor die and make it unusable.
| Location | Dynamic | Static | Transient |
|---|---|---|---|
| IHS Surface | 890 N(200 lbf) | 445 N(100 lbf) | 667 N(150 lbf) |
Sources
The newton (symbol N) is the SI derived unit of Force, named after Isaac Newton in recognition of his work on Classical This article deals with the unit of force For the unit of mass see Pound (mass. The newton (symbol N) is the SI derived unit of Force, named after Isaac Newton in recognition of his work on Classical This article deals with the unit of force For the unit of mass see Pound (mass. The newton (symbol N) is the SI derived unit of Force, named after Isaac Newton in recognition of his work on Classical This article deals with the unit of force For the unit of mass see Pound (mass.Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic