Your Cart is Empty
PC Repair Singapore: PC Fans Spinning But No Display
Quick answer: When a PC powers on but shows no display, possible causes include the graphics card, RAM, power connections, monitor or cable, BIOS/firmware, or motherboard. In this customer's case, the no-display problem had continued despite two motherboard RMA attempts. After the second RMA attempt, the customer bought a new motherboard from Mansa. We rebuilt the system and stress-tested it for about 21 hours. The rebuilding service cost $120 SGD.
Last updated: September 2026
Job Summary
Service
PC motherboard rebuild in Singapore
Customer's Problem
PC fans spinning with no display output; issue persisted after two motherboard RMA attempts
What We Did
Installed customer's new motherboard, reconnected all components, stress-tested for 21 hours
Result
PC passed 21 hour stress test, confirmed stable, returned to customer
Watch the Repair
Why Is My PC Showing No Display When the Fans Are Spinning?
When a PC powers on but shows no display, several components can be responsible, including the graphics card, RAM, power connections, monitor or display cable, BIOS/firmware, or motherboard. Troubleshooting is needed to narrow down the cause rather than assuming the motherboard is faulty. In this customer's case, the no-display issue had continued despite two motherboard RMA attempts.
This customer had been dealing with the same no-display issue for some time. He had already visited two other repair shops and had the motherboard RMA'd twice, but the no-display issue kept returning. After the second RMA attempt, the customer bought a new motherboard from Mansa and had us rebuild the system.
Root Cause
The no-display issue had continued despite two motherboard RMA attempts. The customer bought a new motherboard from Mansa, and we rebuilt the system around it. After the rebuild, the PC powered on with display output and operated normally, then underwent extended stress testing to check stability.
What We Checked During the Rebuild
- Replacement motherboard and components prepared for installation
- Internal power, data and front-panel connections reconnected
- Graphics card reinstalled and secured
- Display output and system operation checked after the rebuild
How We Fixed It
- Removed the existing motherboard: The existing motherboard was removed from the system.
- Prepared the new motherboard: The customer’s new motherboard was prepared for installation.
- Rebuilt the system: The new motherboard was installed into the chassis and all components were reconnected: GPU, storage, front-panel headers, and power cables.
- Confirmed POST and display output: The rebuilt system was powered on and display output was confirmed.
- Stress-tested for 21 hours: The rebuilt PC was run under load for 21 hours to confirm full stability before returning it to the customer.
Photo Guide
Swipe or use arrows to see the repair process.
Preparing the New Motherboard
The replacement motherboard is prepared on the workbench before installation, with key components checked and positioned for the rebuild.
Reconnecting the System
Power, front-panel and internal cables are reconnected carefully inside the case as the motherboard rebuild is completed.
Rebuilding the System
The components are reinstalled and secured inside the case as the PC rebuild is completed before final testing.
Rebuild Complete
The completed PC powers on successfully with display output, RGB lighting and cooling all working after the motherboard replacement.
"A no-display issue can come from several components, so the cause should be tested rather than assumed. In this case, the problem had continued despite two motherboard RMA attempts. After rebuilding the PC with another motherboard, display output returned and the system remained stable during extended testing."
Mansa ComputersFinal Result
The PC passed a 21-hour stress test after the rebuild with no display issues observed. After the new motherboard was installed, the system powered on with display output and remained stable during extended testing.
If your PC has been through multiple repair shops or part swaps without resolving a no display fault, the board may be the issue. Mansa can diagnose and confirm before any parts are purchased.
Cost Breakdown
| Service | Cost (SGD) |
|---|---|
| Rebuilding the PC (motherboard swap, full reconnection, 21 hour stress test) | $120 |
| Total | $120 |
Repair costs vary depending on the issue and parts needed. This is the cost for this specific job. Press the WhatsApp button on the right to speak with us about your PC issue.
Frequently Asked Questions
Why are my PC fans spinning but there is no display?
When PC fans spin but no display appears, possible causes include RAM, the graphics card, motherboard, PSU, BIOS/firmware, display cable or monitor. Because the symptoms overlap, systematic troubleshooting is needed before replacing parts. Mansa Computers provides diagnosis at no charge and quotes the repair cost before work begins.
How much does a PC motherboard rebuild cost in Singapore?
This motherboard rebuild cost $120 SGD. The service included installing the replacement motherboard, reconnecting the system and extended stability testing. Repair prices vary depending on the work required.
How do I know if my motherboard is dead?
A failing motherboard can cause symptoms such as no display, failure to POST, unexpected restarts or inconsistent device behaviour. However, these symptoms can overlap with RAM, GPU, PSU and other hardware faults, so systematic testing is needed before replacing the motherboard.
PC Fans Spinning But No Display?
Tell us the symptoms and we'll help you figure out the next step. No obligations, just a straight answer.
Press the WhatsApp button on the right to speak with us about your PC issue.
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!