I bought a pair of HP x1100 Workstations in December for the kids. One of them stopped booting. It made a modem noise and then beeps twice. After reading some forums, I installed a new power supply and the computer started working again for 4 weeks. Now it is doing the same thing. Any ideas?

The beeping sound could be due to a hardware issue such as low battery or the speaker being in pairing mode1. Here are some steps you can try to resolve the issue:

Check if the speaker is in pairing mode. If it is, try pressing the power button briefly (for 1 second), once or twice. This should cancel pairing mode and make the beeping stop.
If the speaker is beeping every 30 seconds or so, it's probably telling you that it's in "Pairing Mode" and ready to connect to a Bluetooth device. If you don't have any devices to pair it with right now, just press and hold down the "Power" button for about two seconds to turn it off until you're ready to pair it again.
If the problem persists, try restarting your device and then reconnecting it with the Bluetooth speaker. If the problem is still not resolved, then you should turn off the Bluetooth feature on your device. It will stop making those annoying sounds.

try these
http://h30499.www3.hp.com/t5/Business-PCs-Compaq-Elite-Pro/hp-dc7800-5-beeps-problem/td-p/1142014#.VJYGUvXpAg


HP Guide to beep codes:
http://h10025.www1.hp.com/ewfrf/wc/document?cc=uk&lc=en&docname=bph07107
(see your machine spevcs for which BIOS you have if you don't know)

http://h30499.www3.hp.com/t5/Business-PCs-Compaq-Elite-Pro/Boot-problems-with-dc7800-CMT/td-p/1080736#.VJYHL_XpAg

and many more generated by searching the internet for "5 beeps hp dc 7800"

The second reference I posted is possibly the place to start
20.December.2014

Hi,

Try to check your keyboard.

Thanks

Hi there please wait a moment.

Have you tried an external keyboard, either PS2 or USB depending on what ports are available?

By warble, do you mean a high pitch non stop noise? If so... I think I went through that bout 2 months ago, it was a easy fix. Ifr it is the same problem

It sounds like you need to be using managed mode for the workstation installations. When you do this, the server will contact the workstations when there is a new update, and not the other way around. You wont have to worry about when it checks if that is the case.

Remove the sticks and put them back again, make sure you hear the "click", the click means that the sticks are where they should be in possion,¨

Btw, you bought sticks that are suported by your Mobo i asume?

You could be using the wrong type of memory. Check your mobo specs to see what your mobo is compatible with.

My lap is also dv6000 and i have no symptoms like that.
it seems some thing is going wrong inside. As your lap is under warranty you should contact your service centre, it will be free.

Thanks
Iqbal