- Nov 12, 2002
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I visited this forum a long time ago when I encountered problems with my 3.3 V line (see thread here for background info).
My rig was originally configured like this:
- P4 2.4b o/c @ 2.9GHz, Asus P4PE, 512MB 2700 RAM @ 400DDR
- Gainward TI4600 Ultra 750 Golden Sample (o/c @ factory settings)
- 3 IDE ATA Hard drives (2X 7200, 1X 5400 RPM)
- 2 IDE DVD/CDRW optical devices
- 2 PCI cards (including ATA100 controller card)
- 3 case fans (excluding 2 fans on PSU, 1 fan on CPU, and 1 fan on video card)
- cold cathode tube
- 410W PSU with 2 Y-connectors to add additional 4-pin device plugs
I was getting low readings on my 3.3V line, so I swapped out the 420W PSU for a generic 500W unit. My 3.3V line recovered, but that PSU couldn't keep pace for long and eventually I replaced it with an Antec TruePower 550W PSU. Smooth sailing for a year... UNTIL NOW.
I replaced the dying 5400 RPM HD with a new 200GB 7200 RPM HD (also IDE) and everything is cool for about a week. Then one morning I boot and I hear this ringtone melody from the mobo speaker. It's not a typical POST error beep, it's an actual melody of 3 beep tones in rapid succession, repeated every 10 seconds or so. I swear I thought it was my cell phone when I first heard it. Then my heart stopped when the error message "NTLDR is missing. Please press ctrl-alt-del to continue" appeared. If anyone else has ever troubleshot this problem before, you know how painful it can be. I used the recover console to reload the boot files, and finally the computer booted to Windows XP Pro. I thought I was done. Warm boots didn't yield any beeps. But a cold boot brought back the beeps (even though I could still boot to Windows XP fine without the NTLDR error). I haven't been able to identify what the Award BIOS beep melody means, and the beep code legends I find on the web are way simpler than the one I hear. So now I'm really frustrated. Finally I read somewhere that sometimes the cause of the NTLDR error message is just a loose or faulty IDE cable. While changing IDE cables I did some experiments:
- When I booted with only the boot hard drive connected (directly to the mobo IDE channel 1), I could boot normally without any beeps or errors.
- When I booted with 2 drives on the same mobo IDE channel, the beeps went away and I could boot normally without any beeps or errors.
- When I booted with 1 drive on the mobo IDE channel and 1 drive on the Promise ATA100 controller, the beeps went away and I could boot normally without any beeps or errors.
- When I booted with all 3 drives (2 drives on the mobo IDE channel and 1 drive on the Promise ATA100 controller), I get the funny beeps again and BAM! The "NTLDR is missing" error appears again! As soon as I take aware the 3rd HD, the computer is fine.
- Just for chits and giggles, I switch 2 of the HD's from IDE to ATA controller card and same problem.
So does this mean my power supply doesn't have enough juice to run three 7200 RPM HD's? I must have only had barely enough power to run 2 7200 RPM HD's and 1 5400 RPM HD for a year if that's the case. I just don't understand why my computer is demanding so much power... I don't think 3 ATA drives is excessive (think of all the raid and SATA setups with 4+ HD's). Is the overclocking hogging all my juice? Could my house's physical power outlet be faulty?
In case it matters, here's what my Motherboard Monitor says when I only have 2 HD's connected:
CPU Temp: 37 deg C
Mobo Temp: 20 deg C
CPU Fan: 2360 RPM
Core: 1.68 V
+3.3V: 3.3 V
+5V: 5.00 V
+12V: 11.37 V
-12V: -11.88 V
-5V: -4.98 V
Is it my 12V line that's flaky here? My temps (CPU fan seems to spin ok?) Any help at this point would be greatly appreciated... I am at wit's end already.

My rig was originally configured like this:
- P4 2.4b o/c @ 2.9GHz, Asus P4PE, 512MB 2700 RAM @ 400DDR
- Gainward TI4600 Ultra 750 Golden Sample (o/c @ factory settings)
- 3 IDE ATA Hard drives (2X 7200, 1X 5400 RPM)
- 2 IDE DVD/CDRW optical devices
- 2 PCI cards (including ATA100 controller card)
- 3 case fans (excluding 2 fans on PSU, 1 fan on CPU, and 1 fan on video card)
- cold cathode tube
- 410W PSU with 2 Y-connectors to add additional 4-pin device plugs
I was getting low readings on my 3.3V line, so I swapped out the 420W PSU for a generic 500W unit. My 3.3V line recovered, but that PSU couldn't keep pace for long and eventually I replaced it with an Antec TruePower 550W PSU. Smooth sailing for a year... UNTIL NOW.
I replaced the dying 5400 RPM HD with a new 200GB 7200 RPM HD (also IDE) and everything is cool for about a week. Then one morning I boot and I hear this ringtone melody from the mobo speaker. It's not a typical POST error beep, it's an actual melody of 3 beep tones in rapid succession, repeated every 10 seconds or so. I swear I thought it was my cell phone when I first heard it. Then my heart stopped when the error message "NTLDR is missing. Please press ctrl-alt-del to continue" appeared. If anyone else has ever troubleshot this problem before, you know how painful it can be. I used the recover console to reload the boot files, and finally the computer booted to Windows XP Pro. I thought I was done. Warm boots didn't yield any beeps. But a cold boot brought back the beeps (even though I could still boot to Windows XP fine without the NTLDR error). I haven't been able to identify what the Award BIOS beep melody means, and the beep code legends I find on the web are way simpler than the one I hear. So now I'm really frustrated. Finally I read somewhere that sometimes the cause of the NTLDR error message is just a loose or faulty IDE cable. While changing IDE cables I did some experiments:
- When I booted with only the boot hard drive connected (directly to the mobo IDE channel 1), I could boot normally without any beeps or errors.
- When I booted with 2 drives on the same mobo IDE channel, the beeps went away and I could boot normally without any beeps or errors.
- When I booted with 1 drive on the mobo IDE channel and 1 drive on the Promise ATA100 controller, the beeps went away and I could boot normally without any beeps or errors.
- When I booted with all 3 drives (2 drives on the mobo IDE channel and 1 drive on the Promise ATA100 controller), I get the funny beeps again and BAM! The "NTLDR is missing" error appears again! As soon as I take aware the 3rd HD, the computer is fine.
- Just for chits and giggles, I switch 2 of the HD's from IDE to ATA controller card and same problem.
So does this mean my power supply doesn't have enough juice to run three 7200 RPM HD's? I must have only had barely enough power to run 2 7200 RPM HD's and 1 5400 RPM HD for a year if that's the case. I just don't understand why my computer is demanding so much power... I don't think 3 ATA drives is excessive (think of all the raid and SATA setups with 4+ HD's). Is the overclocking hogging all my juice? Could my house's physical power outlet be faulty?
In case it matters, here's what my Motherboard Monitor says when I only have 2 HD's connected:
CPU Temp: 37 deg C
Mobo Temp: 20 deg C
CPU Fan: 2360 RPM
Core: 1.68 V
+3.3V: 3.3 V
+5V: 5.00 V
+12V: 11.37 V
-12V: -11.88 V
-5V: -4.98 V
Is it my 12V line that's flaky here? My temps (CPU fan seems to spin ok?) Any help at this point would be greatly appreciated... I am at wit's end already.