Z400: four short beeps

Recently, I moved from xw4400 (second hand) Z400. The transfer was relatively easy: I moved from SSD from the old to the new computer and made a few adjustions. Everything is fine, except:

1. after closing down (and usually before logon) a four short beeps is the herd. Computer passed all the test of the utility of diagnosis (downloaded from HP). I made two changes to the system: Add a card WiFi PCI fan fore (directly connected to the transformer unit, not MB) (not working as before - usually need to press Connect)

2. at the time of startup, before the login screen, there is a wait of 5 to 10 seconds (black screen with a cursor in the upper left; a very short message 'Attempt to start hard drive', and then connect you). Interestingly, I tried a completely clean installation of Win 7 Pro, but a black screen remains.

Any input will be greatly appreciated.

Gojko,

1. the Z400 sometimes will give a 4 beeps if the system is shut down, and if the power cord is pulled (or AC power supply is cut off by a switch on a power strip), then the power button is pressed a few seconds after turning off the power (with power still disconnected).  What is happening, the system will try to power upward after pressing the power button, use the small residual charge in the system.  There is not enough power for the system to start to give of false beeps "power."

However, these beeps to the power down don't cause the system failure and do not prevent the system startup when the power supply is reconnected.  It looks like a failure, but it is not.
Just to be sure, you do run on 120 or 240 VAC?
The system has never failed to turn on when the system is plugged into a power outlet?

2. a few start-up systems after a wait of 5 second or 10 with the cursor in the corner.  I don't know why this happens, but it is normal that on many systems.

You said you took records previous and other elements of the xw4400.  You reinstall the operating system?  You update the drivers?  I recommend that you install the latest driver for chipset Z400 and other drivers, if you have not already done so.

Tags: HP Desktops

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