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Have you tried also to unplug mains and re-seat power supplies?<br />
While the server is not connected to mains, try to press power button 2-3 times.<br />
Have you tried to change power source (ups, direct connection to mains)?<br />
If you have two power supplies and this won't help I'm afraid that is something wrong with motherboard.<br />

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Have you tried also to unplug mains and re-seat power supplies?
While the server is not connected to mains, try to press power button 2-3 times.
Have you tried to change power source (ups, direct connection to mains)?
If you have two power supplies and this won't help I'm afraid that is something wrong with motherboard.


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That is usually the power supply or the backplane to the powersupply
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That is usually the power supply or the backplane to the powersupply

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it was the power supply backplane.
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I have an HP dl380 server and it will not boot. it has a solid orange light on the front of the server on the power button, either power supply does not show a green light and it will not boot. I've tried everything, reating cpu, ram , drives, raid card, battery, tried removing everything and boot and nothing. 
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I have an HP dl380 server and it will not boot. it has a solid orange light on the front of the server on the power button, either power supply does not show a green light and it will not boot. I've tried everything, reating cpu, ram , drives, raid card, battery, tried removing everything and boot and nothing. 

HP DL380 SOLID ORANGE LIGHT

Servers are computing devices that are similar to desktop computers in that they have the same basic components, but are significantly different in size, configuration and purpose. Servers are usually accessed over a network, and many run unattended, without a computer monitor, input device, audio hardware or USB interfaces. Many servers do not have a graphical user interface (GUI), and are configured and managed remotely. Servers typically include hardware redundancy such as dual power supplies, RAID disk systems, and ECC memory, along with extensive pre-boot memory testing and verification. Critical components might be hot swappable, and to guard against overheating, servers might have more powerful fans or use water cooling.

Server Hardware

Components are those devices that are internal to a computer -- the PC boards, the central processor (CPU), the memory (RAM), disk and video controllers and so on.