PC suddenly refused to power on whole night. Motherboard has light (indicating thr’s power). Upon pressing front panel switch button, nothing happens. Case fan not spinning, no bootup, no POST, no Windows. Screen has nothing.
Specs:
Ryzen 5 2600
Galax RTX2080 base
2x8GB Corsair Vengeance LPX DDR4 3200MHz (DOCP enabled)
1x Toshiba 2TB 2.5” HDD
1x Samsung 970 Evo Plus 500 GB NVMe
NZXT C850 80+ Gold 850W
Asus Prime B450MA mATX.
Everything runs stock, i.e. never OC.
Parts i checked:
So the issue is not on PSU.
I really don’t know how to explain it when the symptom is this random. I’ve brought my system to 2 local PC technicians and they both were able to plug it in and power up the pc in front of me, showing not a single sign of issue at all. Subsequently, i brought it home and ran it for a day, no issue. However next day in the morning, symptom shows again. My system is embarrassing me.
No help at all. Where else should I check?
Specs:
Ryzen 5 2600
Galax RTX2080 base
2x8GB Corsair Vengeance LPX DDR4 3200MHz (DOCP enabled)
1x Toshiba 2TB 2.5” HDD
1x Samsung 970 Evo Plus 500 GB NVMe
NZXT C850 80+ Gold 850W
Asus Prime B450MA mATX.
Everything runs stock, i.e. never OC.
Parts i checked:
- Reseat the graphics card
- Reseat the RAM
- Tried 1 stick of RAM
- Tried RAM on all slots.
- Checked and reseat NVMe
- Checked and replugged HDD
- Checked and replugged case power switch cable
- Checked and replugged case every front panel cables (HDD LED, Reset Button, Power LED)
- Checked case front panels connections (no sign of physical damage detected)
- Checked and replugged all PSU cables (24-pin to motherboard, CPU, GPU, HDD)
- Case is newly bought, 1.5 weeks old. Cooler Master MB400L mATX.
- Dusted GPU PCIe slot
- Dusted GPU connector
- Dusted both sticks of RAM
- Dusted all 4 RAM slots
- Tried to power on without GPU inserted into motherboard PCIe, and disconnected 6+8-pin power cables.
- Recently installed a new NZXT C850 PSU 850W 2 days ago.
- Recently installed 240 mm AIO cooler for processor. Cooler Master ML240L.
- Did stress test on processor using OCCT, no issue. Processor max temp was around 59-61C.
- Did stress test on graphics card using OCCT, no issue. Graphics card max temp was 70C.
- PC was running fine for hours each day, for past 2 days.
- Did some gaming past 2 days and monitored GPU and CPU temps, all fine. GPU temp at 75C; CPU temp at around 56-58C.
- The only part i have not bothered is the processor. I don’t dare to unscrew the cooler and looked into processor as I don’t trust my own hand. Processor requires more delicate handling.
- The Samsung NVMe is the boot drive.
- The battery CR2032 is weak or maybe dead.
The issue started with old PSU installed. I used to have Corsair CX550M 550W 80+ Bronze for about 2 years plus, and I thought it would be underpowered, hence on last Sunday i swapped to a newly bought NZXT C850 850W 80+ Gold.
So the issue is not on PSU.
I really don’t know how to explain it when the symptom is this random. I’ve brought my system to 2 local PC technicians and they both were able to plug it in and power up the pc in front of me, showing not a single sign of issue at all. Subsequently, i brought it home and ran it for a day, no issue. However next day in the morning, symptom shows again. My system is embarrassing me.
No help at all. Where else should I check?
Last edited:
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