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Zorluk: ZorCPU Architecture Cooling and Sockets

A field technician is upgrading a high-end desktop workstation used for 3D rendering. During the installation of a new high-TDP processor, the technician notices that the motherboard socket features hundreds of protruding gold-plated pins that mate with flat copper contact pads on the underside of the processor package. After securing the processor lever and mounting an All-In-One (AIO) liquid cooling loop, the system boots into the UEFI setup screen, but the processor temperature climbs rapidly to 95°C within two minutes, triggering an automatic thermal shutdown. The technician verifies that the pump tubing feels warm on one side and cold on the other, the pump tachometer reads 2,800 RPM in UEFI, and the radiator fans are operating at full speed. Which of the following socket architecture formats is installed on this motherboard, and what is the most likely cause of the thermal throttling?

  1. Land Grid Array (LGA) socket; the protective plastic shipping film on the AIO copper cold plate was not removed prior to mounting.Cevap
  2. B
    Pin Grid Array (PGA) socket; the thermal compound has dried out and created an air gap between the heat spreader and the cold plate.
  3. C
    Ball Grid Array (BGA) socket; the liquid cooling pump impeller has failed and is unable to circulate coolant through the loop.
  4. D
    Land Grid Array (LGA) socket; the processor was installed with bent socket pins preventing hyperthreading instructions from executing.

Cevap

Land Grid Array (LGA) socket; the protective plastic shipping film on the AIO copper cold plate was not removed prior to mounting.
Land Grid Array (LGA) sockets are distinguished by placing delicate spring-loaded pins inside the motherboard socket receptacle, which connect to flat contact pads on the CPU package. When an AIO liquid cooler is installed with its protective plastic shipping sticker left on the copper cold plate, the plastic acts as a severe thermal insulator. This causes CPU temperatures to spike rapidly into thermal throttling limits even while the pump motor operates normally.

Adım Adım Çözüm

1
Identify the CPU socket architecture based on physical characteristics.
Because the pins are located inside the motherboard socket mating with flat pads on the CPU underside, the socket architecture is Land Grid Array (LGA).
LGA places pins on the motherboard, whereas PGA places pins on the CPU substrate, and BGA is permanently soldered.
2
Analyze the thermal cooling symptoms and diagnostic indicators.
The pump RPM is verified at 2,800 RPM and radiator fans are operating, ruling out power or total pump mechanical failure. However, heat is not effectively transferring from the CPU to the liquid coolant.
Rapid overheating to 95°C under minimal load (UEFI) when the pump and fans operate points directly to an extreme thermal interface obstruction.
3
Deduce the root cause of the heat transfer failure.
Leaving the manufacturer's clear protective plastic peel-off film over the copper cold plate acts as a severe thermal insulator, preventing thermal paste and heat pipes/water blocks from absorbing heat.
This is a classic thermal installation error on new AIO liquid cooling installations.

Anahtar Kavram

CPU Socket Form Factors and Liquid Cooling Thermal Interface Troubleshooting
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Konular

CPU Architecture Cooling and Sockets

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