Thanks rs170a.

As far as additional info when I have attempted to render it was with the CPU only and not using the graphics card. It has occasionally beeped at times other when attempting to render.

I'm thinking there is a way to do a hardware diagnostics in Windows while running Vegas if anyone has info on how to do that it would be great.

Most beeping error codes happen at boot time so you can probably eliminate much of that. In any case beep codes are programmable in a bios so youd want to go to asus to get their difinitive list.

My guess is that it's cpu or power related. First make sure that the power connectors are all seated properly, including the ones to the graphics card. (I'm going to assume your psu is adequate). If that doesn't solve it, maybe reseat your cpu and regrease the heat sink. But power seems like a good first bet.

Rob

Possibly a low voltage warning from the power supply?
If you've got lots of hard drives and a big video card, you could need a bigger power supply.
Or, it could be the system sensors themselves (unlikely). You should be able to change alarm thresholds in BIOS.

A utility like SpeedFan will display temperatures, voltages, and fan RPMs so you can see what is triggering the alarm.

One thing to look for in power supplies is the available AMPS. The modern video cards can require a lot of AMPS.

I had to get a power supply with higher WATTS than I thought I needed to get the correct AMPS for the video card.

Hope this helps.

Paul Masters

Watts = Volts x Amps

When one exceeds the rated wattage, the voltage begins to drop from internal resistance and heat, and an alarm condition is triggered.

I've had beeps when:
*CPU overheating (if it overheats so fast as to not show up on the CPU temp monitor you wouldn't know)
*Voltage to CPU (overclocking)
*Bad PSU.

I've found, from experience, that the PSU is the ONLY thing I won't skimp on any more. I'll happily pay $100+ for a good CPU vs $50 & a better CPU.

Believe me, when rendering, the CPU will grow hot very quickly.

Check that your heat sink is firmly attached; it it isn't that would be enough for an alarm to sound.

Thanks for all the replies everyone. My power supply is a Corsair 650 watt. That should be good. There are two HDD and external HDD with its own power supply. The normal temp when not under load (except the background processes) is between 30 and 35 degrees C.

First thing I'd do is download Prime95 Ortho and run it. It, too, puts a huge thermal strain on the CPU and ram. If you get beeps, you know it's not Vegas, it's stress.

Next thing I'd do is dig out the motherboard manual. I've never had a motherboard that beeps outside of the BIOS routine, but I guess anything's possible.

One could also download a voltage utility to see if the PS is sagging under load. I use MotherboardMonitor and it gives me really slick gauges so I can see at a glance how things are doing inside--temps, voltages, fan speeds.