Question about ASUS NCT-D (90MSV430G0UAY) Motherboard

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Whining noise from pc tower

The pc has got this annoying high pitched sound. I've checked the HDD by replacing it with another one. I've disconnected the floppy and DVD writers. The only thing I didn't check was the PSU and CPU. A pc technician advised me to remove the stickers from the fans and also the little cap and put a drop of oil on it. No result. The sound is still there. To me it sound like something on the M/B. Is it possible that a transistor on the M/B can make a high pitch sound? This M/B will be a year old in Oct.

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  • bellabonzie
    bellabonzie Sep 30, 2008

    Thank you for your reply. I've replaced the psu, disconnected all my devices and only the motherboard was connected. The sound was still there. The cpu fan is clean from any dust as I clean my pc on a regular basis. I am a technician. This sound sounds like a capasitor or something vibrating just left from my CPU. It is not the CPU as I've disconnected it and the sound continiued. I even removed the ram one by one to no avail. The sound was still there. With only the M/B working and using 2 different psu units, it left me with the only the M/B. What really caught my attention was when I checked the bios setting and used the save and exit option, pressed enter, the sound stopped for a second. This is the only time I ever heard it stop. This sound starts very soon after start-up and the pitch stays the same allllllll the time. Sorry, I am so annoyed by this and doesn't enjoy my pc any more :-(.

  • pils Oct 12, 2008


    i am facing a similar problem. only difference is tht the whining/rattling noise goes away after a couple of minutes . i suspected the psu initially. but after reading ur experience i don't know where else to look. have any suggestions. the noise is a recent phenomenon. all fans are clean. noise is definately not frm them.



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I found the problem about this whining high pitched sound. It came from the "onboard" speaker. Disconnected it and the noise was gone. You disconnect the thin red and black wires coming from the LED connections. Good luck!

Posted on Oct 18, 2008


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I have an asus nct-d with two nocoma cpus and the whining noise drove me nuts.
It was the fans on the cpus. The cpus run hot and the fans gotta haul *** to keep them cool
Hence the noise.
I water cooled the system and have had no noise or any other problems since.

I hope this helps.

Posted on Oct 18, 2008


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No transistor will make such noise... The problem is not in your M/B. The problem might be due to the fan that cools your processor. So clean dust around the fan thoroughly.

Posted on Sep 28, 2008

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Posted on Jan 02, 2017


SOURCE: cpu fan noisy/chip fan fail error messages

I had tons of problems with these Asus chip fans. I asked Asus to deliver 12 replacements (as I had a lot of pcs at that time with the same problem) It worked well, but placing a tiny heatsink well glued to the chip worked well also, as long as one does not want to overclock the thing. It's true that the temp raised a bit, but it remained pretty much in the tolerance area.

Posted on May 21, 2008


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Found the following paragraph on manufacturer's web site.

"The CrashFree BIOS2 feature now includes the BIOS auto-recovery function in a support CD. Users can reboot their system through the support CD when a bootable disk is not available, and go through the simple BIOS auto-recovery process. ASUS motherboards now enable users to enjoy this protection feature without the need to pay for an optional ROM. "

Here's a link to Asus support site. It looks like the have a good tool for you to help troubleshoot your board.

Hope this helps and GOOD LUCK!

Posted on Oct 16, 2009


  • 1 Answer

SOURCE: A8n32-SLi Deluxe - Will not boot

your bios can be reset to defaults by removing the CMOS battery, then moving the little blue jumper to the right of it from the 1-2 pins to the 2-3 pins fpr 10 seconds, then place it back onto the 1-2 pins, replace the battery and boot as usual.

Posted on Dec 10, 2009

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