I have a ASUS M4A89TB MB which is AMD&#39;s 890FX/SB850 chipset I believe, a quad-core AMD Phenom II, and an ATI FirePro V3700.<br><br>Related to the power supply as in this is a hardware issue? Because the hum doesn&#39;t start until almost the end of the boot process on the liveCD, and if it were the power supply&#39;s fault, wouldn&#39;t it start as soon as I booted up the system? <br>
<br><div class="gmail_quote">On Mon, Mar 28, 2011 at 9:40 AM, Peter Stuge <span dir="ltr">&lt;<a href="mailto:peter@stuge.se">peter@stuge.se</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div class="im">Colleen Josephson wrote:<br>
&gt; high-pitched hum coming from the audio jacks<br>
&gt; (occurs on both MB sound and a creative sound card)<br>
<br>
</div>What are some of the main system components? Which type CPU and<br>
chipset?<br>
<br>
My guess would be that this is related to the power supply, and that<br>
power management of some hardware couples over to the audio codec.<br>
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//Peter<br>
<br>
</font></blockquote></div><br><br clear="all"><br>-- <br>Colleen Josephson<br>Dept. of Electrical Engineering and Computer Science<br>Massachusetts Institute of Technology<br>Class of 2013<br>