<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">It's fairly grunty - a RaidMax 380 Watt unit:<div><br></div><div><a href="http://www.tigerdirect.com/applications/searchtools/item-Details.asp?EdpNo=1648607&sku=R456-1002">http://www.tigerdirect.com/applications/searchtools/item-Details.asp?EdpNo=1648607&sku=R456-1002</a></div><div><br></div><div>Not near the machine currently so can't try disabling the additional SATA. Here are the system specs of the box:</div><div><br></div><div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Helvetica; ">AMD Athlon 64 X2 Dual Core 3800+ Socket AM2 Processor<span style="font: 13.0px Helvetica"> </span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Helvetica; ">Geforce 7600GS 256MB DDR3 Graphics card<span style="font: 13.0px Helvetica"> </span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Helvetica; ">1G DDR2 667 RAM<span style="font: 13.0px Helvetica"> </span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Helvetica; ">320GB SATA2 7200rpm HDD<span style="font: 13.0px Helvetica"> </span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Helvetica; ">18x DVD-R/+R, Dual Layer DVD writer<span style="font: 13.0px Helvetica"> </span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Helvetica; ">500W Raidmax Power supply<span style="font: 13.0px Helvetica"> </span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Helvetica; ">MSI K9N Neo-F Motherboard, Socket AM2 Motherboard<span style="font: 13.0px Helvetica"> </span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Helvetica; ">Silverstone Lascala SST-LC16S-MR ATX Home Theatre Case, Silver (has 2 built-in fans).</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Helvetica; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Helvetica; "><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 12px;">Not convinced it's an under-powering issue though as I wouldn't expect to see the interference still occurring on the TV video-input when the Myth box is powered down (but still plugged in with the main power switch on).</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Helvetica; "><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 12px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Helvetica; "><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 12px;">Noticed a few posts on the web where people were reporting electrical leakage into ATI graphics cards affecting outputs. I'm wondering if an earth from a case screw onto the RCA-connector (plugged into the S-Video->Composite converter that came with the Gfx card) might be worth a try. Still - it's run fine for a year and a half so can't understand why it's a problem now. </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Helvetica; "><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 12px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Helvetica; "><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 12px;">Will take a DVI monitor home and see if that outputs signal OK - perhaps the aforementioned converter is faulty?</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Helvetica; "><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 12px;"><br></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Helvetica; "><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 12px;">Matt</span></font></div></div><div><br></div><div><br><div><div>On 7/02/2009, at 11:30 AM, Douglas Pearless wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Are you running near the limits of the power supply? (What size is it? <br>If it only requires a 4 pin extra power plug for the motherboard, then I <br>have a spare you could borrow to troubleshoot).<br><br>If you remove the extra sata drive, does this fix it?<br><br>Douglas.<br><br>Matt Poff wrote:<br><blockquote type="cite">Over the last couple of weeks my MythBox has developed some weird <br></blockquote><blockquote type="cite">signal interference which obliterates the picture feed to the TV. <br></blockquote><blockquote type="cite">There have been no electrical wiring changes in the house or new <br></blockquote><blockquote type="cite">appliances plugged in so it's a mystery. I unplugged every other <br></blockquote><blockquote type="cite">device from the mains running off the same dual socket except the TV <br></blockquote><blockquote type="cite">and Myth box and unplugged everything else (audio jack, DVB-S feeds <br></blockquote><blockquote type="cite">etc.) from the box but the interference persists even when the Myth <br></blockquote><blockquote type="cite">box is not running. I even grabbed an extension cord and fed the TV <br></blockquote><blockquote type="cite">and Myth Box of completely different loops with no effect. Only when I <br></blockquote><blockquote type="cite">actually turn off the power switch at the back does the interference <br></blockquote><blockquote type="cite">stop.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I opened the box up to check whether there were any loose cables etc <br></blockquote><blockquote type="cite">but couldn't find any. The only change I've made recently was adding <br></blockquote><blockquote type="cite">another SATA drive to the rig.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I'm assuming the problem stems from the power supply but not sure how <br></blockquote><blockquote type="cite">to fix it? Do I need to ground the box in some way? It's a purpose- <br></blockquote><blockquote type="cite">built PVR case (Silverstone LC16M) so should be fit-for-purpose.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">The actual supply of power is fine and the system runs but the feed <br></blockquote><blockquote type="cite">out to the TV is borked. Turning the RCA jack (good quality video <br></blockquote><blockquote type="cite">gold-plated) in the Video-In socket sometimes improves the picture <br></blockquote><blockquote type="cite">fleetingly. If the system is unplugged from the mains and left for 10 <br></blockquote><blockquote type="cite">minutes or so the signal is usually OK on the next restart for half an <br></blockquote><blockquote type="cite">hour or so before the interference kicks in.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Any ideas how to fix or further troubleshoot this?<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Cheers,<br></blockquote><blockquote type="cite">Matt<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">_______________________________________________<br></blockquote><blockquote type="cite">mythtvnz mailing list<br></blockquote><blockquote type="cite"><a href="mailto:mythtvnz@lists.linuxnut.co.nz">mythtvnz@lists.linuxnut.co.nz</a><br></blockquote><blockquote type="cite"><a href="http://lists.ourshack.com/mailman/listinfo/mythtvnz">http://lists.ourshack.com/mailman/listinfo/mythtvnz</a><br></blockquote><blockquote type="cite">Archives <a href="http://www.gossamer-threads.com/lists/mythtv/mythtvnz/">http://www.gossamer-threads.com/lists/mythtv/mythtvnz/</a><br></blockquote><blockquote type="cite"><br></blockquote><br>_______________________________________________<br>mythtvnz mailing list<br><a href="mailto:mythtvnz@lists.linuxnut.co.nz">mythtvnz@lists.linuxnut.co.nz</a><br><a href="http://lists.ourshack.com/mailman/listinfo/mythtvnz">http://lists.ourshack.com/mailman/listinfo/mythtvnz</a><br>Archives <a href="http://www.gossamer-threads.com/lists/mythtv/mythtvnz/">http://www.gossamer-threads.com/lists/mythtv/mythtvnz/</a><br></div></blockquote></div><br><div> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 112, 0); font-family: Arial; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 16px; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div style="font-size: 2.5em; "><span><br class="Apple-interchange-newline">.head</span><span style="color: rgb(141, 180, 78); ">first</span></div><div style="padding-top: 0.5em; padding-right: 0pt; padding-bottom: 0pt; padding-left: 0pt; font-size: 0.7em; "><span style="color: rgb(141, 180, 78); ">WEB DEVELOPERS</span><span class="Apple-converted-space"> </span><span style="color: rgb(0, 112, 0); ">.ENGAGING .USEFUL .WORKS</span></div><div style="border-top-width: 1px; border-top-style: dotted; border-top-color: rgb(141, 180, 78); "><div style="margin-top: 0.7em; margin-right: 0pt; margin-bottom: 0.7em; margin-left: 0pt; overflow-x: hidden; overflow-y: hidden; font-size: 0.9em; "><div><span style="float: left; width: 5em; clear: both; color: rgb(141, 180, 78); ">web:</span><span style="float: left; "><a href="http://www.headfirst.co.nz/" style="color: rgb(0, 112, 0); ">www.headfirst.co.nz</a></span></div><div><span style="float: left; width: 5em; clear: both; color: rgb(141, 180, 78); ">email:</span><span style="float: left; "><a href="mailto:matt.poff@headfirst.co.nz" style="color: rgb(0, 112, 0); ">matt.poff@headfirst.co.nz</a></span></div><div><span style="float: left; width: 5em; clear: both; color: rgb(141, 180, 78); ">phone:</span><span style="float: left; ">(04) 498 5737</span></div><div><span style="float: left; width: 5em; clear: both; color: rgb(141, 180, 78); ">mobile:</span><span style="float: left; ">027 229 9584</span></div></div><div style="border-top-width: 1px; border-top-style: dotted; border-top-color: rgb(141, 180, 78); "></div></div></span><br class="Apple-interchange-newline"> </div><br></div></body></html>