When I'm just surfing the web, the computer automatically restarts and then makes annoying beeping noises and there's a black screen for a while. I have to take the plug out and put it back it and then it restarts and says in a BIOS setup screen: Error Message: During the last bootup your system hung for improper frequency combination. You are now in safe mode. Make sure frequency combination conforms to specifications of your cpu, dimm, and other connected devices.

And it keeps on doing this every once and a while (Like every day). What should i do to fix it?

I have a Sony Vaio PCV-W500GN1 series and OS: Windows XP
Sounds like your BIOS has been supplied improper/extreme settings, perhaps in an attempt to 'overclock' the system?

Wait for an expert but you should be able to resolve this issue by entering your BIOS's setup by pressing the indicated key while the PC is booting. Then find the method according to your BIOS in which to REVERT to "Default (settings)". This will likely resolve the issue, unless of course there are other issues; corruption, overheating, memory?

If you do try this method you may be informed that some settings are invalid, as the 'Default' settings are not always appropriate to your computer configuration. These should be automatically adjusted by the BIOS.I would recomend you enter your bios on the next boot up, your computer shoud show you a message at the bottom off the screen while it boots telling you to press a key normaly F2 to enter set up

Once in the bios find an option to reset to default settings and use it. then save and Exit the bios and reboot the Computer.

If i have time ill look up your computer manual and see if i can Find the Exact setting you should have for it... Do Sony Vios have a service Tag like a Dell PC dose ? if so can you post it here then we can look up exactly what your PC isAlso, regarding the beeps: BEEP.

Quote

BIOS setup screen: Error Message: During the last bootup your system hung for improper frequency combination. You are now in safe mode. Make sure frequency combination conforms to specifications of your cpu, dimm, and other connected devices.

I would recomend you enter your bios on the next boot up, your computer shoud show you a message at the bottom off the screen while it boots telling you to press a key normaly F2 to enter set up

Once in the bios find an option to reset to default settings and use it. then save and Exit the bios and reboot the Computer.

If i have time ill look up your computer manual and see if i can Find the Exact setting you should have for it... Do Sony Vios have a service Tag like a Dell PC dose ? if so can you post it here then we can look up exactly what your PC is