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My PC has a Gigabyte GA-M57SLI-S4 motherboard. While I was on Debian the motherboard started to beep (1 long beep) and it switched itself off. Then I was not able to boot. There is no signal going to the monitor. I cleaned the RAM sockets and reinstalled them, rechecked and reinstalled the graphics card, rechecked and reinstalled HDD power and SATA cables, but nothing! Now it doesn't even beep.

PS: these are the beep codes from the motherboard's manual:

AWARD BIOS Beep Codes

1 short: System boots successfully
2 short: CMOS setting error
1 long 1 short: DRAM or M/B error
1 long 2 short: Monitor or display card error
1 long 3 short: Keyboard error
1 long 9 short: BIOS ROM error
Continuous long beeps: DRAM error
Continuous short beeps: Power error

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    DUDE, beeps are codes, IBM Beep codes. So count how many beeps besides whether they are long or short. they are IBM Beep codes. – barlop Dec 8 '13 at 1:08
  • it was 1 long beep (looping) – sterz Dec 8 '13 at 1:09
  • according to this, on an ibm desktop bioscentral.com/beepcodes/ibmbeep.htm one continuous beep means a power supply error, have you tried changing the psu? and on an ibm thinkpad it means a system board error – barlop Dec 8 '13 at 1:10
  • no but i am gonna buy one tomorrow. PSU's fans spin though. – sterz Dec 8 '13 at 1:11
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    @barlop, DUDE, BIOS beep codes only apply when booting, not when the system is already running the OS. And they said it no longer beeps after rebooting, so it’s probably something else. – Synetech Dec 8 '13 at 1:15
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I've found the culprit! Apparently it was indeed the RAM sockets!

The beep returned (somehow) so I started to re-check all sockets...still beep! Then I went ahead and re-tried the RAM sticks one by one...still beep! (then took a smoke break and for the last time re-tried plugging in/out GPU and RAM sticks before going ahead to re-paste the CPU)

Bam! this time magically the beep went away and the PC booted with RAM in socket #3 (didn't work before)!

My guess and conclusion: There is a nasty random short-circuit affecting all of the RAM sockets. I'd better start looking for a new motherboard.

  • You should always be clear where the beep occurred 'cos earlier you spoke of a beep within the OS, and at other times a BIOS beep code. You should be clearer on that when you write of a beep. (I do see now you're talking of BIOS beeps). – barlop Dec 8 '13 at 2:47
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    Maybe you didn't seat the RAM properly the last time. it's premature to say it's the motherboard. just go with it being the ram not being seated right perhaps. And the beep within the OS may just be a mysetery. though no harm in changing the motherboard! – barlop Dec 8 '13 at 2:49
  • My bet is badly seated ram. I've had that myself quite a few times – Sirex Dec 8 '13 at 4:37
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Your processor could be overheating and is shutting down. You need to take out the fan and heatsink and reapply the thermal paste. That or check that your box is getting adequate cooling.

Good luck.

  • the CPU core temperatures were fine before the PC "died". – sterz Dec 8 '13 at 1:24
  • @sterz - I would go ahead and try this despite you thinking it wasn't happening it might have happen. – Ramhound Dec 8 '13 at 2:05

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