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ROM
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The ROM chips haveprogramspermanently stored
For i/o drive and bootstrap for the system
Beginning a the
address OFFFFO.It is BIOS
AT motherboard
27128*2=32B
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RAMSIMM & DIMM
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SIMM & DIMM
Single in linememory module
Using DIP memory
chips or 4Mb ramusing in SIMM
80286 cpu on the AT
mother board isconfigured.
7 DMA channels.
DDR2
PC2-3200 = 400 MHzdata & strobe / 200MHz clock foraddress and control
PC2-4200 = 533 MHz
data & strobe / 266MHz clock foraddress and control
PC2-5300 = 667 MHzdata & strobe / 333
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PROCESSOR
80486 DX2 ceramicPGA package.
Pga pin grid array.Click to edit Master text stylesSecond level
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SOCKET 1
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Introduce 1989 16-50Mhz
Socket 1 was the
second of a series ofstandard sockets createdby Intel.
various x86
microprocessors wereplugged.
Socket 1 was a 169 pin.
PGA socket.
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SOCKET 2
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Socket 2 was one of the seriesof sockets into which various x86microprocessors were plugged.
It was a 238-pin.
pins arranged in a 19 by 19 grid.
63 or 83 MHz Pentium OverDriveprocessors.
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SOCKET 3
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It was commonly found alongsidea secondary socket designed fora math coprocessor chip, in thiscase the 487.
Socket 3 resulted from Intel's
creation of lower voltagemicroprocessors. An upgrade toSocket 2, it rearranged the pinlayout and omitted one pin sothat 3.3 V processors could notbe plugged into older 5 V only
sockets.
Socket 3 was a 237-pin.
INTRODUCE 1991.
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SOCKET 4
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Socket 4, presented in 1993,was the first CPU socketdesigned for the early Pentiumprocessors
Socket 4 was the only 5-volt
socket for the Pentium. AfterSocket 4, Intel switched to the3.3-volt-powered Socket 5.Socket 4 does support a specialPentium OverDrive, which allowsrunning at 120 MHz (for the 60
MHz Pentium) or 133 MHz (forthe 66 MHz Pentium).[1]
273 PINS
PENTIUM PROCESSOR USED.
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SOCKET 5
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Socket 5 was created for thesecond generation of IntelPentium processors operating atspeeds from 75 to 133 MHz aswell as certain Pentium
OverDrive and Pentium MMXprocessors with core voltage3.3 V
320 pins, this was the first socketto use a staggered pin gridarray(PGA).
Socket 5 was replaced by Socket7.
50-66Mhz bus speed.
Processors: Intel Pentium, MMX
AMD K5IDT WinChi C6
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SOCKET 6
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235 pin
Bus speed 25MHz33MHz
40MHz.
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SOCKET 7
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socket on a personal computermotherboard.
The socket supersedes theearlier Socket 5, and acceptsPentium microprocessors
manufactured by Intel, as well ascompatibles made by Cyrix/IBM,AMD, IDT and others.
Introduce 1994 50-66 Mhz speedbus.
Pin 321.
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SUPER SOCKET 7
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It allow AMDprocessors only.
Introduce 1998.
66-100 Mhz busspeed.
Pin 321
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SOCKET 8
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Socket 8 has a uniquerectangular socket with 387 pins.
It supports a FSB speeds rangingfrom 60 to 66 MHz, a voltagefrom 3.1 or 3.3V, and support for
the Pentium Pro and the PentiumII OverDrive CPUs. Socket 8 alsohas a unique pin arrangementpattern.
Intel pentium pro.
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SLOT--1
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With the introduction of the PentiumII CPU, the transition from socket toslot had become necessary, becausethe CPU's core and the cache are twodifferent chips on a shared circuitboard.
Pin 242.
Slot type.
Celeron (Covington, Mendocino)Pentium II (Klamath)Pentium III (Katmai)- all versions
Pentium III (coppermine).
66-133 mhz.
Introduce 1997.
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SLOT--2
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INTRODUCE 1998.
INTEL PENTIUM XEONPROCESSOR.
PIN 330.
100-133 MHZ.
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SLOT - A
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INTRODUCE 1999.
AMD ATHLON.
SLOT TYPE.
242 PINS.
100 MHZ.
Advanced MicroDevices
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SOCKET 370
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Introduce 1999.
Pentium 3
Celeron, Via cyrix 3,Via c3
1.27MM PIN SIZE.
66-133 mhz.
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Socket A
/ socket 462Click to edit Master text stylesSecond level
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Introduce in 2000.
Processor : AMD AthlonAMD DuronAMD Athlon XPAMD Athlon XP-M
AMD Athlon MPAMD Sempron.
462 pins.
400 MT/s (megatransfers/second)fsb in the later models.
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Socket 423
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Introduce 2000.
Designed for P4.
Pins 423
Pin 1mm dia
400 MT/s.
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SOCKET 478
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Introduce 2000.
Processor : IntelPentium 4
Intel CeleronIntel Pentium 4 EEIntel Pentium M.
Pin 478.1.277mm.
Speed 400-800 MT/s
(100-200 MHz)
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