سوکت LGA775 چیست؟

[sa101]

بنام خدا

سلام دوستان .
سوکت LGA775 چیه و چند نوع دیگه سوکت داریم .

ممنون

[nima_hl]

بنام خدا

سلام دوستان .
سوکت LGA775 چیه و چند نوع دیگه سوکت داریم .

ممنون

سلام

775 یه سوکت قدیمی از شرکت اینتل هستش که عمر 6-7 ساله داره و در حال حاضر آخرای عمرش رو داره میگذرونه

سوکتهای جدید اینتل 1366 و 1156 هستند که به تازگی ( نزدیک ۱ سال ) به بازار عرضه شدن

سوکت 1366 بیشتر برای سیستمهای حرفه‌ای و 1156 برای استفاده معمولی به بازار اومدن

[Jagvar]

سلام دوست عزیز شاید لینک زیر بتونه به شما کمک بکنه
http://pcnetwork.blogfa.com/post-17.aspx
برای مشاهده این لینک/عکس می بایست عضو شوید ! برای عضویت اینجا کلیک کنید

[AMD>INTEL]

LGA 775
From Wikipedia, the free encyclopedia
(Redirected from Socket 775)
Jump to: navigation, search
LGA 775 CPU Socket 775 T.jpg
Type LGA
Chip form factors Flip-chip land grid array
Contacts 775
FSB protocol Quad-Pumped
FSB frequency 533 MT/s, 800 MT/s, 1066 MT/s, 1333 MT/s, 1600 MT/s
Processor dimensions 1.47 × 1.47 inches[1]
Processors Intel Pentium 4 (2.60 - 3.80 GHz)
Intel Celeron D (2.53 - 3.60 GHz )
Intel Pentium 4 Extreme Edition
(3.20 - 3.73 GHz)
Intel Pentium D (2.66 - 3.60 GHz)

Pentium Dual-Core (1.40 - 2.80 GHz)
Intel Core 2 Duo (1.60 - 3.33 GHz)
Intel Core 2 Extreme (2.66 - 3.20 GHz)
Intel Core 2 Quad (2.33 - 3.00 GHz)
Intel Xeon (1.86-3.40 GHz)
Intel Celeron (1.60 - 2.40 GHz)
This article is part of the CPU socket series

LGA 775, also known as Socket T, is an Intel desktop CPU socket. LGA stands for Land Grid Array. Unlike earlier common CPU sockets, like its predecessor Socket 478, the LGA 775 has no socket holes; instead, it has 775 protruding pins which touch contact points on the underside of the processor (CPU).[2]
Contents
[hide]

* 1 Technical specifications
* 2 Improvements in heat dissipation
* 3 LGA 775 mechanical load limits
* 4 See also
* 5 References

[edit] Technical specifications

The Prescott and Cedar Mill Pentium 4 cores, as well as the Smithfield and Presler Pentium D cores, used the LGA 775 socket. In July 2006, Intel released the desktop version of the Core 2 Duo (codenamed Conroe), which also uses this socket, as does the subsequent Core 2 Quad. Intel changed from Socket 478 to LGA 775 because the new pin type offers better power distribution to the processor, allowing the front side bus to be raised to 1600 MT/s. The 'T' in Socket T was derived from the now canceled Tejas core, which was to replace the Prescott core. Another advantage for Intel with this newer architecture is that it is now the motherboard which has the pins, rather than the CPU, transferring the risk of pins being bent from the CPU to the motherboard.

The CPU is pressed into place by a "load plate", rather than human fingers directly. The installing technician lifts the hinged "load plate", inserts the processor, closes the load plate over the top of the processor, and pushes down a locking lever. The pressure of the locking lever on the load plate clamps the processor's 775 copper contact points firmly down onto the motherboard's 775 pins, ensuring a good connection. The load plate only covers the edges of the top surface of the CPU. The center is free to make contact with the cooling device placed on top of the CPU.

An examination of the relevant Intel data sheets show that LGA 775 which is used for consumer level desktops and LGA 771 used for (Xeon based) workstation and server class computers appear to differ only in the placement of the indexing notches and the swap of two address pins. Many pins devoted to functions such as interfacing multiple CPUs are not clearly defined in the LGA 775 specifications, but from the information available appear to be consistent with those of LGA 771. Considering that LGA 775 predated LGA 771 by nearly a year and a half, it would seem that LGA 771 was adapted from LGA 775 rather than the other way around.

The socket has been superseded by the LGA 1156 (Socket H) and LGA 1366 (Socket B) sockets.
[edit] Improvements in heat dissipation

The force from the load plate ensures that the processor is completely level, giving the CPU's upper surface optimal contact with the heat sink or cold-water block fixed onto the top of the CPU to carry away the heat generated by the CPU. This socket also introduces a new method of connecting the heat dissipation interface to the chip surface and motherboard. With LGA 775, the heat dissipation interface is connected directly to the motherboard on four points, compared with the two connections of the Socket 370 and the "clamshell" four-point connection of the Socket 478. This was done to avoid the reputed danger of the heat sinks/fans of pre-built computers falling off in transit. LGA 775 was announced to have better heat dissipation properties than the Socket 478 it was designed to replace, but the Prescott core CPUs (in their early incarnations) ran much hotter than the previous Northwood-core Pentium 4 CPUs, and this initially neutralized the benefits of better heat transfer. However, modern Core 2 processors run at lower temperatures than the Prescott CPUs they replace.
[edit] LGA 775 mechanical load limits
The LGA 775 contact points on the underside of a Pentium 4 Prescott CPU

All LGA 775 processors (Pentium 4, Celeron, Core 2 (and extreme) and Quad Xeon) have the following mechanical maximum load limits which should not be exceeded during heat sink assembly, shipping conditions, or standard use. Load above those limits will crack the processor die and make it unusable.
Location Dynamic Static
IHS Surface 756 N (170 lbf) (77 kp) 311 N (70 lbf) (31 kp)

The transition to the LGA packaging has lowered those load limits, which are smaller than the load limits of Socket 478 processors but they are bigger than Socket 370, Socket 423 and Socket A processors, which were fragile. They are large enough to ensure that processors will not crack.
[edit] See also

* List of Intel microprocessors
* List of Intel Pentium 4 microprocessors
* List of Intel Core 2 microprocessors

[AMD>INTEL]

LGA 775
From Wikipedia, the free encyclopedia
(Redirected from Socket 775)
Jump to: navigation, search
LGA 775 CPU Socket 775 T.jpg
Type LGA
Chip form factors Flip-chip land grid array
Contacts 775
FSB protocol Quad-Pumped
FSB frequency 533 MT/s, 800 MT/s, 1066 MT/s, 1333 MT/s, 1600 MT/s
Processor dimensions 1.47 × 1.47 inches[1]
Processors Intel Pentium 4 (2.60 - 3.80 GHz)
Intel Celeron D (2.53 - 3.60 GHz )
Intel Pentium 4 Extreme Edition
(3.20 - 3.73 GHz)
Intel Pentium D (2.66 - 3.60 GHz)

Pentium Dual-Core (1.40 - 2.80 GHz)
Intel Core 2 Duo (1.60 - 3.33 GHz)
Intel Core 2 Extreme (2.66 - 3.20 GHz)
Intel Core 2 Quad (2.33 - 3.00 GHz)
Intel Xeon (1.86-3.40 GHz)
Intel Celeron (1.60 - 2.40 GHz)
This article is part of the CPU socket series

LGA 775, also known as Socket T, is an Intel desktop CPU socket. LGA stands for Land Grid Array. Unlike earlier common CPU sockets, like its predecessor Socket 478, the LGA 775 has no socket holes; instead, it has 775 protruding pins which touch contact points on the underside of the processor (CPU).[2]
Contents
[hide]

* 1 Technical specifications
* 2 Improvements in heat dissipation
* 3 LGA 775 mechanical load limits
* 4 See also
* 5 References

[edit] Technical specifications

The Prescott and Cedar Mill Pentium 4 cores, as well as the Smithfield and Presler Pentium D cores, used the LGA 775 socket. In July 2006, Intel released the desktop version of the Core 2 Duo (codenamed Conroe), which also uses this socket, as does the subsequent Core 2 Quad. Intel changed from Socket 478 to LGA 775 because the new pin type offers better power distribution to the processor, allowing the front side bus to be raised to 1600 MT/s. The 'T' in Socket T was derived from the now canceled Tejas core, which was to replace the Prescott core. Another advantage for Intel with this newer architecture is that it is now the motherboard which has the pins, rather than the CPU, transferring the risk of pins being bent from the CPU to the motherboard.

The CPU is pressed into place by a "load plate", rather than human fingers directly. The installing technician lifts the hinged "load plate", inserts the processor, closes the load plate over the top of the processor, and pushes down a locking lever. The pressure of the locking lever on the load plate clamps the processor's 775 copper contact points firmly down onto the motherboard's 775 pins, ensuring a good connection. The load plate only covers the edges of the top surface of the CPU. The center is free to make contact with the cooling device placed on top of the CPU.

An examination of the relevant Intel data sheets show that LGA 775 which is used for consumer level desktops and LGA 771 used for (Xeon based) workstation and server class computers appear to differ only in the placement of the indexing notches and the swap of two address pins. Many pins devoted to functions such as interfacing multiple CPUs are not clearly defined in the LGA 775 specifications, but from the information available appear to be consistent with those of LGA 771. Considering that LGA 775 predated LGA 771 by nearly a year and a half, it would seem that LGA 771 was adapted from LGA 775 rather than the other way around.

The socket has been superseded by the LGA 1156 (Socket H) and LGA 1366 (Socket B) sockets.
[edit] Improvements in heat dissipation

The force from the load plate ensures that the processor is completely level, giving the CPU's upper surface optimal contact with the heat sink or cold-water block fixed onto the top of the CPU to carry away the heat generated by the CPU. This socket also introduces a new method of connecting the heat dissipation interface to the chip surface and motherboard. With LGA 775, the heat dissipation interface is connected directly to the motherboard on four points, compared with the two connections of the Socket 370 and the "clamshell" four-point connection of the Socket 478. This was done to avoid the reputed danger of the heat sinks/fans of pre-built computers falling off in transit. LGA 775 was announced to have better heat dissipation properties than the Socket 478 it was designed to replace, but the Prescott core CPUs (in their early incarnations) ran much hotter than the previous Northwood-core Pentium 4 CPUs, and this initially neutralized the benefits of better heat transfer. However, modern Core 2 processors run at lower temperatures than the Prescott CPUs they replace.
[edit] LGA 775 mechanical load limits
The LGA 775 contact points on the underside of a Pentium 4 Prescott CPU

All LGA 775 processors (Pentium 4, Celeron, Core 2 (and extreme) and Quad Xeon) have the following mechanical maximum load limits which should not be exceeded during heat sink assembly, shipping conditions, or standard use. Load above those limits will crack the processor die and make it unusable.
Location Dynamic Static
IHS Surface 756 N (170 lbf) (77 kp) 311 N (70 lbf) (31 kp)

The transition to the LGA packaging has lowered those load limits, which are smaller than the load limits of Socket 478 processors but they are bigger than Socket 370, Socket 423 and Socket A processors, which were fragile. They are large enough to ensure that processors will not crack.
[edit] See also

* List of Intel microprocessors
* List of Intel Pentium 4 microprocessors
* List of Intel Core 2 microprocessors