Q: Power Mac g5 question

A G5 is a great machine to run 10.5.8 on:

https://discussions.apple.com/docs/DOC-2275

But due to the recent Malware, you may have to disable Java to work with your web browsing. Javascript remains unaffected:

https://discussions.apple.com/docs/DOC-3261

Lots of old good PowerPC and Universal applications work with a G5.  Just don't get an Intel Mac only application, as it won't work with it.

Also it takes 3.5" SATA I hard drives that are 1.5 Gbps.   Be sure any that are faster have the appropriate jumper to down step to that speed.    Getting a 10.5, 10.5.1, 10.5.4, or 10.5.6 retail disk is advisable if you lack one.

when I plug it it there is a red light in the front and web you press power it beeps,

How many beeps?

Is RAM installed?

http://support.apple.com/kb/HT1305

You need a hard drive with OS X installed to use the machine.

The minimum OS required/supported is determined by production date/series.

Open the side panel and locate the small tag (lower center) with the serial number.

http://support.apple.com/kb/HT2330

Enter the serial number in the following sites' database to find out exactly what series of machine yours is:

http://www.chipmunk.nl/klantenservice/applemodel.html