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MattiaIT
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Message 1 of 3
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HP Z420 Doesn't boot and fans run at max speed

HP Recommended
HP Z420
Microsoft Windows 10 (64-bit)

This morning when I tried to boot my Workstation it failed to boot. I think it's related to RAM modules, but it can be also related to the motherboard. Already tried to use a Ram per boot, butt same problem, also with working RAMs from other Workstations.

2 REPLIES 2
Grzwacz
Level 12
Level 12
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Message 2 of 3
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Hi MattialIT,

 

Yes, power supply, RAM, or MB, or component connected to the MB.

 

Just repaired a system with a similar symptom (no POST/fans on high).

 

The pump on the CPU AIO liquid cooler had failed.

 

Try a bare bones config (try a different PSU if possible) then work you way down to the MB.

 

Regards

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alexdrastico
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Message 3 of 3
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HP Recommended

@Grzwacz wrote:

Hi MattialIT,

 

Yes, power supply, RAM, or MB, or component connected to the MB.

 

Just repaired a system with a similar symptom (no POST/fans on high).

 

The pump on the CPU AIO liquid cooler had failed.

 

Try a bare bones config (try a different PSU if possible) then work you way down to the MB.

 

Regards



hi,

i have same problem. i just switch video card from another identic workstation, i buy new ram but hp z420 doesn t start and  power supply fun go at the max speed. Can help me?

regards

Alessio

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