PC lights on but nobody home - Teh Forum

<body> <div id="header"> <span class="left"> <span class="back"><a href="lthread_list.php?webtag=DEFAULT"><span class="image mobile_back" title="Back"></span></a></span> <span class="image mobile_logo" title="Beehive Forum Logo"></span> </span> <ul> <li> <a class="reply_all" href="lpost.php?webtag=DEFAULT&reply_to=41538.0&return_msg=41538.13"> <span class="image mobile_reply_all"></span><span class="text">Reply to All</span> </a> </li> <li> <a class="navigation" href="#"> <span class="image mobile_navigation"></span><span class="text">Show messages</span> </a> </li> <li> <a class="main" href="#"><span class="image mobile_menu" title="Menu"></span> </a> </li> </ul> </div> <div class="menu main"> <ul> <li><a href="lthread_list.php?webtag=DEFAULT">Messages</a></li> <li><a href="lpm.php?webtag=DEFAULT">Inbox</a></li> <li><a href="lsearch.php?webtag=DEFAULT">Search</a></li> <li><a href="llogon.php?webtag=DEFAULT">Login</a></li> </ul> </div> <div class="menu navigation"><a href="lmessages.php?webtag=DEFAULT&msg=41538.1">1–10</a><a href="lmessages.php?webtag=DEFAULT&msg=41538.11">11–20</a><a href="lmessages.php?webtag=DEFAULT&msg=41538.21">21–30</a>…<a href="lmessages.php?webtag=DEFAULT&msg=41538.51">51–60</a></div> <div id="page_content"> <h3 class="thread_title"><a href="index.php?webtag=DEFAULT&amp;msg=41538.13">PC lights on but nobody home</a> </h3> <div id="messages" data-navigation="41538_13_60_10"> <a name="a41538_13"></a><div class="message" id="message_41538_13"> <div class="message_header"> <div class="message_from"> From: milko<span class="message_time">21 Jul 2015 20:57</span> <div class="clearer"></div> </div><div class="message_to">To: koswix <span><span class="image post_read" title="Read: 22 Jul 2015 08:32"></span></span> <span class="message_count">13 of 60</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41538.13">41538.13</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41538.12">41538.12</a></div> <div class="message_body"> My PSU is fully modular apart from the motherboard cable. So that's in there with the paperclip, and then I've plugged in a HDD cable to get the molex power socket. It's got yellow, 2x black, and red cables. With black from the multimeter into black on the molex, and red into red I get 5v as (I think) I should. Red into yellow I get 3.3v. There's no other cables (other than the one going to the wall!) connected at all.<br /> <br /> Is any of that me being a doofus? I am prepared to accept the possibility as I aren't very experienced with electrickery.<div class="edit_text">EDITED: 21 Jul 2015 20:58 by MILKO</div> </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41538.13&return_msg=41538.13" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41538.13"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a41538_14"></a><div class="message" id="message_41538_14"> <div class="message_header"> <div class="message_from"> From: milko<span class="message_time">21 Jul 2015 21:01</span> <div class="clearer"></div> </div><div class="message_to">To: milko <span><span class="image post_read" title="Read: 21 Jul 2015 21:01"></span></span> <span class="message_count">14 of 60</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41538.14">41538.14</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41538.13#a41538_13" target="_self">41538.13</a></div> <div class="message_body"> Oh hello. Different cable (same type) into different socket on the PSU and it reads 12.5V. Hffffffff.</div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41538.14&return_msg=41538.13" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41538.14"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a41538_15"></a><div class="message" id="message_41538_15"> <div class="message_header"> <div class="message_from"> From: ANT_THOMAS<span class="message_time">21 Jul 2015 21:08</span> <div class="clearer"></div> </div><div class="message_to">To: milko <span><span class="image post_read" title="Read: 21 Jul 2015 21:25"></span></span> <span class="message_count">15 of 60</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41538.15">41538.15</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41538.13#a41538_14" target="_self">41538.14</a></div> <div class="message_body"> I read a few things yesterday saying that some PSUs do need a load, might be worth plugging in an optical drive and testing some more. Check what's coming out of the ATX connector since that's what is actually powering the motherboard. </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41538.15&return_msg=41538.13" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41538.15"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a41538_16"></a><div class="message" id="message_41538_16"> <div class="message_header"> <div class="message_from"> From: milko<span class="message_time">21 Jul 2015 21:31</span> <div class="clearer"></div> </div><div class="message_to">To: ANT_THOMAS <span><span class="image post_read" title="Read: 21 Jul 2015 22:14"></span></span> <span class="message_count">16 of 60</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41538.16">41538.16</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41538.13#a41538_15" target="_self">41538.15</a></div> <div class="message_body"> Yeah, ATX is showing 3/5/12 as it should. Well, 12.5. Maybe one duff HDD molex cable was enough to cause this, plugging the other into the same bit works as well for the case fan. Weird. Time to put it all back together. </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41538.16&return_msg=41538.13" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41538.16"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a41538_17"></a><div class="message" id="message_41538_17"> <div class="message_header"> <div class="message_from"> From: milko<span class="message_time">21 Jul 2015 21:55</span> <div class="clearer"></div> </div><div class="message_to">To: milko <span><span class="image post_read" title="Read: 21 Jul 2015 21:55"></span></span> <span class="message_count">17 of 60</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41538.17">41538.17</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41538.13#a41538_16" target="_self">41538.16</a></div> <div class="message_body"> And... Still nothing ffs. Going to just smash it all with a hammer. Think Truffy had something about that in his advice. </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41538.17&return_msg=41538.13" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41538.17"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a41538_18"></a><div class="message" id="message_41538_18"> <div class="message_header"> <div class="message_from"> From: william (WILLIAMA)<span class="message_time">21 Jul 2015 22:02</span> <div class="clearer"></div> </div><div class="message_to">To: milko <span><span class="image post_read" title="Read: 21 Jul 2015 22:12"></span></span> <span class="message_count">18 of 60</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41538.18">41538.18</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41538.11">41538.11</a></div> <div class="message_body"> Have you got an old/another PC tucked away somewhere, as in try powering it with your BeQuiet PSU or try powering your current PC from the other PSU? The BeQuiet does look as though it has all sorts of fancy dohickeys and magic electric juju inside.<br /><br /> Do you have a hard drive (not solid state) you can use as a load i.e. plug in directly? I think these need 12V to spin up which would show whether it's supplying enough.<br /><br /> Edit: OK, I see you've moved on beyond this. Serves me right for taking a break to watch the telly before clicking on post.<div class="edit_text">EDITED: 21 Jul 2015 22:04 by WILLIAMA</div> </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41538.18&return_msg=41538.13" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41538.18"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a41538_19"></a><div class="message" id="message_41538_19"> <div class="message_header"> <div class="message_from"> From: milko<span class="message_time">21 Jul 2015 22:13</span> <div class="clearer"></div> </div><div class="message_to">To: william (WILLIAMA) <span><span class="image post_read" title="Read: 21 Jul 2015 22:30"></span></span> <span class="message_count">19 of 60</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41538.19">41538.19</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41538.13#a41538_18" target="_self">41538.18</a></div> <div class="message_body"> Ha. Yes. I am a bit bereft of spare things (small flat plus baby means clear outs were enforced) but I'm back to being flummoxed now anyway. </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41538.19&return_msg=41538.13" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41538.19"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a41538_20"></a><div class="message" id="message_41538_20"> <div class="message_header"> <div class="message_from"> From: milko<span class="message_time">21 Jul 2015 22:39</span> <div class="clearer"></div> </div><div class="message_to">To: milko <span><span class="image post_read" title="Read: 21 Jul 2015 22:39"></span></span> <span class="message_count">20 of 60</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41538.20">41538.20</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41538.13#a41538_19" target="_self">41538.19</a></div> <div class="message_body"> Rrrgh. So I started again thusly: PSU connected to nothing, ATX shorted with paperclip. Powers on, volts read as they should. Plugged in the 'other' motherboard power (that fires up the CPU I think) and powered up, volts read as they should. Plugged in PCIe for the graphics, volts all good. Plugged in AIO CPU cooler power, volts all good. Plugged in hard drives power, NOTHING. Hello. Went back a step, nothing. Mixed and matched a few steps, nothing. Went back to just PSU With ATX cabLe shorted, nothing. <br /> <br /> *flings hands in the air* <br /> <br /> *goes to bed*</div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41538.20&return_msg=41538.13" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41538.20"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a41538_21"></a><div class="message" id="message_41538_21"> <div class="message_header"> <div class="message_from"> From: ANT_THOMAS<span class="message_time">21 Jul 2015 22:48</span> <div class="clearer"></div> </div><div class="message_to">To: milko <span><span class="image post_read" title="Read: 22 Jul 2015 07:37"></span></span> <span class="message_count">21 of 60</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41538.21">41538.21</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41538.13#a41538_20" target="_self">41538.20</a></div> <div class="message_body"> When it does nothing, the PSU doesn't power up?<br /><br /> Sounding like a PSU on its way out.</div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41538.21&return_msg=41538.13" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41538.21"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a41538_22"></a><div class="message" id="message_41538_22"> <div class="message_header"> <div class="message_from"> From: william (WILLIAMA)<span class="message_time">21 Jul 2015 22:48</span> <div class="clearer"></div> </div><div class="message_to">To: milko <span><span class="image post_read" title="Read: 22 Jul 2015 07:37"></span></span> <span class="message_count">22 of 60</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=41538.22">41538.22</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=41538.13#a41538_19" target="_self">41538.19</a></div> <div class="message_body"> Broken and/or stuck power switch? You can bypass the switch by <s>stabbing wildly at the motherboard</s> shorting the two pins that the power lead from the switch is plugged onto, with a screwdriver. If the PC turns on, the switch is faulty.<br /><br /> The relevant wire will be a very fine twisted pair and probably have PWR written on the plastic plug bit in itty bitty writing. It may also be silk-screened on the mobo near the pins.</div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=41538.22&return_msg=41538.13" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="41538.22"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div></div> <div class="message_page_footer"> <ul> <li class="right_col"><form accept-charset="utf-8" method="get" action="lmessages.php" target="_self"><input type="hidden" name="webtag" id="webtag" class="bhinputtext" value="DEFAULT" dir="ltr" /><input type="hidden" name="msg" id="msg" class="bhinputtext" value="41538.23" dir="ltr" /><input type="submit" name="submit" id="keep_reading" value="Keep reading…" class="button" /></form></li> </ul> </div> </div> </body>