DMJ Posted October 10, 2008 Share Posted October 10, 2008 Hello everybody. I'm here to see if I can get any help before I officially bother Corsair with my problems. So I'll get right to it and hopefully I can find out what actually is wrong with my system. The PSU I have is a Corsair VX550W and a Gigabyte MA78G-DS3H motherboard. And for the details of the rest of my system please check my profile. -EDIT- I forgot to mention that all my components are brand new. First of all, I cannot boot normally, everytime is shutdown the computer, I need to switch the PSU on/off before it boots. If not, the harddrives and fans spin up, and nothing happens from there except ominous sounds from my harddrive(s). The more serious issue is that my Vcore is fluctuating TOO much, and not just the normal Vdrop. It increases and decreases with load, with up to .5 Volts and sometimes more. Using speedfan I get some very odd readings and they are such as this: http://upload.landslide.nu/upl/Admin/Voltageissue.png I have marked the voltages that to me seem way off what they should be. Though I'm not exactly sure what the negative voltages do, but I'm sure they should have a somewhat correct value. So basically I want to know: What component would you suspect is at fault, PSU or the motherboards ability to monitor these voltages correctly? And how worried should I be running my system? High risk of disk failure or other hardware failure? I'm highly appreciative of help, and let me know of anything I can do to help you help me! Thanks beforehand. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 10, 2008 Corsair Employees Share Posted October 10, 2008 I would double check your voltage readings with the readings in the BIOS and see if you have similar readings. Software and BIOS voltage and temperature readings can be fairly inaccurate. FYI there is no -5 volt rail on our PSU, so that reading is definitely not correct. The main rails (5v, 12v, 3.3v) are all looking good, but double check the BIOS readings to see if you get similar results. The vCore voltages are going to be regulated by your motherboard so if the 12v rail looks good, then the motherboard may be responsible for fluctuating CPU voltages. Link to comment Share on other sites More sharing options...
DMJ Posted October 12, 2008 Author Share Posted October 12, 2008 I have, unfortunately my bios doesen't show any readings of the negative voltages. But what do you think? Are the negative voltages irrelevant? What about the problems I explained with booting etc? Also I have noticed some kind off clicking noise from the PSU. Or rather like the sound of sparkles. You know, the kind you hear sometimes after you turn of your CRT screen after a long time of using it, or your tv. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 13, 2008 Corsair Employees Share Posted October 13, 2008 Negative voltage readings are often detected improperly by software, and even the BIOS. There are no major components that run off of a negative voltage, and in most cases, if the 3.3v, 5v, and 12v are within spec, there is no reason to measure the negative rail(s). As for the sound you are hearing, do you always hear this or does it only occur under certain conditions? Link to comment Share on other sites More sharing options...
DMJ Posted October 14, 2008 Author Share Posted October 14, 2008 The sound randomly appears, perhaps more often while using cpu-heavy applications or when browsing harddrives. But I can't hear it now after having the computer powerless over the night. I guess it just could be the fan. More on the boot/reboot issue. When rebooting the screen just goes dark, but everything is still running, the fans, the drives, the video card etc. But if I hit the reset switch it starts booting properly after a while. And sometimes its the same when booting. The fix is to turn of the PSU and turn it back on. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 14, 2008 Corsair Employees Share Posted October 14, 2008 At this point it is difficult to say where the problem lies. If possible, you may either want to test the PSU in a different system, or test a different PSU in your own system to see if you can isolate the problem. If all else fails we can try replacing the PSU for you, but I'm not very confident that a replacement would resolve your issues. If you decide to try replacing the PSU, then please use the On Line RMA Request Form and we will be happy to replace them. Be sure to check the box that says “I've already spoken to Technical Support and/or RAM Guy.” Link to comment Share on other sites More sharing options...
DMJ Posted October 16, 2008 Author Share Posted October 16, 2008 Hello again. Well it turns out it is more than likely that it is the motherboard that is the problem. More have had the same problem with my board regarding the booting problems etc. So my PSU is not to blame. But, the PSU fan is making more noise than ever. It's constant now, and its quite loud, I'm playing music atm and I still can here it in the backround. I will try to loosen the fan screws and see if that helps. If it doesen't I might have to RMA both my motherboard and PSU. :sigh!: Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 17, 2008 Corsair Employees Share Posted October 17, 2008 NP I gave you the link in a previous post. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.