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Onsite PC Repair Singapore: CPU Overheating Fixed with AIO Cooler Replacement | Mansa Computers
Quick answer: This onsite PC repair in Singapore fixed a CPU overheating fault by replacing the AIO (All-In-One) liquid cooler. Our technician drove to the customer's home, swapped the failed AIO, and confirmed the CPU temperatures were back in range before leaving.
Last updated: September 2025
Job Summary
Service
Onsite PC repair in Singapore: AIO liquid cooler replacement for CPU overheating
Customer's Problem
CPU was overheating. PC slowing down under load or shutting off as a thermal protection response.
What We Did
Drove to the customer's home. Replaced the failing AIO cooler with a new unit. Confirmed CPU temperatures back in safe range before leaving.
Result
CPU running at normal temperatures. PC stable under load. Fixed in one onsite visit.
Watch the Repair
Why Was the CPU Overheating?
A customer needed onsite PC repair in Singapore after their CPU started overheating. When a CPU runs too hot, the PC slows itself down to reduce heat output, or shuts off entirely as a safety measure. Either way, the PC stops performing the way it should.
The existing AIO (All-In-One) liquid cooler was no longer cooling the CPU effectively. As cooling performance degrades, CPU temperatures can rise quickly during normal use. Replacing the cooler restored proper heat dissipation and normal operating temperatures.
Root Cause
The existing AIO cooler was no longer cooling the CPU effectively. The cooling system showed signs of wear and was replaced with a new AIO cooler, restoring normal operating temperatures.
What We Checked First
- CPU temperatures under load: confirmed running above safe operating range
- AIO cooler condition: cooling performance inspected as part of the diagnosis
- Radiator and fans: checked for blockage or fan failure
- Case airflow: confirmed adequate airflow, ruling out a ventilation issue
- Thermal paste on CPU: checked condition and replaced alongside the AIO swap
How We Fixed It
- Onsite visit arranged: Customer reported CPU overheating. Our technician drove to the customer's home with a replacement AIO cooler. No need for the customer to travel to our workshop.
- CPU temperatures confirmed: Checked temperatures under load. CPU was hitting its thermal limit. The existing AIO cooler was identified as the source of the cooling issue.
- Old AIO removed: Failing AIO detached from the CPU. Old thermal paste cleaned from the CPU heat spreader.
- New AIO installed: Replacement AIO liquid cooler fitted with fresh thermal paste applied. Radiator mounted and fans connected for optimal airflow.
- Temperatures confirmed stable: Ran the system under load after the swap. CPU temperatures came down to normal operating range. PC confirmed stable before the technician left.
Photo Guide
Swipe or use arrows to see the repair from start to finish.
Onsite Callout
Technician arrived onsite with a replacement AIO so the repair could be completed in one visit.
Old Cooler Out
Faulty AIO removed and old thermal paste cleaned off the CPU before installing the replacement.
New AIO In
Replacement AIO installed with fresh thermal paste. Radiator and fans mounted and connected for proper cooling.
Cleaning & Reassembly
Dust and residue cleared while the system was open, ensuring proper airflow before closing the case.
Temperatures Confirmed
System tested under load. CPU temperatures returned to normal range and the PC was stable before the technician left.
"CPU overheating is often linked to the cooling system. Replacing a worn or failing cooler can restore normal operating temperatures and improve system stability."
- Mansa ComputersFinal Result
CPU temperatures back in normal operating range. PC running stable under load with no throttling or shutdown. Fixed in one onsite visit to the customer's home.
Mansa's onsite repair service covers Singapore island-wide. Call or WhatsApp us, we go down, fix it, and done. For jobs that need workshop equipment, we collect the PC and return it within 1-2 days.
Cost Breakdown
| Service / Parts | Cost (SGD) |
|---|---|
| Onsite callout and diagnosis | $150 + $80 |
| AIO liquid cooler replacement (part and installation) | $95 |
| Total | $325 |
Repair costs depend on the AIO model required and the components involved. Press the WhatsApp button on the right to describe your issue and get a quote.
Frequently Asked Questions
Why is my CPU overheating?
The most common causes are a failing CPU cooler, dried or degraded thermal paste, dust blocking airflow, or poor case ventilation. If the PC slows down under load or shuts off on its own, CPU overheating is a likely cause. WhatsApp us your symptoms and we can help you narrow it down before any parts are ordered.
How long does an AIO cooler replacement take?
For an onsite visit, the AIO swap itself takes around 30-60 minutes including temperature testing after the install. The total visit time depends on travel and any additional checks needed. If the replacement AIO is in stock, the job is typically done in one visit. WhatsApp us your location and we will confirm availability and timing.
Does Mansa do onsite PC repair across Singapore?
Yes. We do onsite repairs island-wide. For jobs where we can identify the fault and bring the right parts, we come to your home or office and fix it on the spot. If the repair needs workshop equipment or more in-depth testing, we collect the PC and return it within 1-2 days. Transport is covered under the first-year onsite warranty. For out-of-warranty repairs, WhatsApp us for a quote.
PC Overheating or Shutting Off in Singapore?
Tell us the symptoms and we will help you figure out the cause. If it needs an onsite visit, we will come to you.
Press the WhatsApp button on the right to speak with us.
Need some help with your PC?
Drop us an email or Whatsapp text!
Give us a brief description of the issue you're facing and we'll get back to you in the quickest time possible.
Otherwise, if you have any feedback or PC-related questions, don't hesitate to reach out to us!