Question about HP Pavilion a1540n PC Desktop

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We just got an HP Pavilion A1540N from my cousin, we are trying to boot it up and it beeps and the monitor turns on but goes right to sleep.

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Will need the beep sequence the amount of beeps. The beeps lets ya know that there was something wrong in POST. Most likely cause would be the video card but need the beep sequence to be certain.

Posted on Mar 26, 2011

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My monitor keeps going to sleep dont know how to wake it up


click on the power button to wake it up. then go to control panel and click on power options to change the settings for your power management.

Jul 02, 2010 | HP Pavilion a1540n PC Desktop

1 Answer

My hp pavillion a1540n won't boot up. The power button is on but no boot menu on the monitor. Monitor is blank


I suggest you check the Power Supply. Bad Power Supply, weak Voltage power rail.

1) ALL the LED lights use less than 1 Watt of power.
2) EACH fan uses 2 to 3 Watts
3) A typical Processor uses 51 to 125 Watts. Depends on what Processor it is. (Older one's use less)

The HP Pavilion a1540n specifications state it uses an AMD Athlon X2 4200+, processor.

(2.0GHz. Dual Core. Built upon the Windsor Core. Uses a Socket AM2 processor socket)


HP Support > Pavilion a1540n desktop computer > Specifications,

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00679533&tmp_task=prodinfoCategory&lc=en&dlc=en&cc=us&product=3184140&lang=en

Can use up to to 89 Watts,

http://en.wikipedia.org/wiki/List_of_AMD_Athlon_64_microprocessors#.22Windsor.22_.28F2_.26_F3.2C_90_nm.29

Enough power for the LED lights, and fans, but Not enough for the Processor.

No Processor operating, No computer.
No computer, No Signal to the monitor.
(Video signal)

The Power Supply used is an ATX style, and 300 Watts.

A computer only uses the power it needs, and No more.
If you install a Power Supply with more Wattage than the original, it will be fine.

Jun 19, 2010 | Computers & Internet

1 Answer

Video on my HP Pavilion a1540n is broken


Yes you put in the video card and the default is lowest resolution and is usable without a driver, install driver then reboot and you have your new video card to set up the way you want.

May 15, 2010 | HP Pavilion a1540n PC Desktop

1 Answer

Hp pavilion a1540n does not boot, fan turns on high, and beeps once every +/-5 seconds


Sounds like a memory fault, try removing 1 memory at a time, and restart. might help, try each memory by its self to indentify the bad card.

Dec 01, 2009 | HP Pavilion a1540n PC Desktop

1 Answer

My monitor goes to sleep mode at startup & can't access safe mode


Turn the computer off, open the case and remove the RAM. Does the computer beep when you turn it on with no RAM? If not, your motherboard is dead.

If your computer beeps, turn it off again and try putting one stick of RAM in. If the computer doesn't turn on normally, try the other stick of RAM.

Also, try taking out the video card and putting it back in.

Good luck,
Jason

Jan 25, 2009 | E-Machines eMachines Desktop PC

2 Answers

When turned ON, nothing appears on the monitor.


On power "OFF", check your video card and memory cards by re-inserting it into the slot. Be careful though if you haven't done this before. Also check if the CPU fan is working well. It might also be an overheating cpu problem.

Jan 13, 2009 | HP Pavilion a1540n PC Desktop

1 Answer

Tried to upgrade my hp from windows 98 to xp now it wont come on. It beeps then the monitor goes to sleep.Can not even run my redtore disc.


At start up of computer start tapping the f-2 key until you open the bios.In the bios change your drive order so that the computer boots first to CD-rom.

Mar 18, 2008 | HP Compaq Presario 2500 HP Pavilion ZE...

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