I have a GA-P67A-UD3-B3 + Intel i5 2500k + ATI Saphire 6950 1GB + 2x4gb G.Skill RipJaws Series + PSU CoolerMaster GX650w.
The computer boots just fine, I get the normal 1 beep and then I get into the OS (Win7 or Linux Ubuntu 11.04 with dualboot). After a while of using the computer I get this strange beep code ( beep-pause-beep-pause-beep (beeps are short)). Also happened (only once) that the beep were continuous (with a short pause between each other), and then the computer turned off and back on but got the infamous reboot loop, I then unplugged the power and drained it pressing the power button, connected everything again and it booted fine.
But after using the computer for a while I still get the "three beeps", now I shut down the computer as soon as I hear them to prevent the reboot loop that happened before.
This is driving me crazy because its not beeping at boot like a normal problem, it lets me get into the OS and everything, plus I have used it for days sometimes without hearing the beep so this makes it really hard to test stuff, I tried all the memory slots, using only one memory, disconnecting all unnecesary cables, etc and still get the beeps, I even heard them once while leaving the computer into the BIOS setup for like 15 minutes.
I also used a voltimeter on the wall plug, and I get around 215volts (should be 220v), but I monitored while running the computer, and once it beeped and the volts were stuck on 215, they weren't lower, and the computer seems to work anyway with that voltage, if that was the problem I would expect to get the beeps as soon as I turn it on.
I checked temperatures with software and bios, and they never go above 56C, disk, vga, cores, etc, even while beeping.
Since beeps while into the operative system are mostly because of temperature, I though it was that or fan failure alarm, but I disabled all the alarms on the bios and tried again, and still get the beeps after using it for a while.
So, can the mobo beep because of temperature, even when the alarms are disabled?
What could be happening? Could it be a voltage problem? Does someone has an audio sample of how the power error beeps sound like? Does vga cards contain their own beep speaker?
I haven't received any response from gigabyte.