Dragonball Posted January 29, 2011 Share Posted January 29, 2011 Looked simple enough - just upgrade the memory on the desktop I thought... Took cover off - vacuumed everything inside (careful not too touch owt) and the fans Grounded myself - moved wires out of way and pushed the memory in - bit stiff but eventually clicked into place... Hoorah I thought.... Now will not turn on - no lights (I get a brief flicker from one of the usb ports at the back when try turning back on and off) nothing...nyada..zippo...rien et etc There is a slight 'electric' smell from the internal power ac.. Checked through the motherboard tech jobby - could not see an internal 'fuse' or something that might have blown - checked all connections (10 times!) Am I missing something please...? Quote Link to comment Share on other sites More sharing options...
ManwithSupra Posted January 29, 2011 Share Posted January 29, 2011 Sounds like the PSU is knackered. Quote Link to comment Share on other sites More sharing options...
Josh Posted January 29, 2011 Share Posted January 29, 2011 Have you made sure it's plugged in? Sorry, couldn't resist Quote Link to comment Share on other sites More sharing options...
BazzaAlpine Posted January 29, 2011 Share Posted January 29, 2011 I know this may sound silly but did you put the ram in the right way round? The way you said it was a bit stiff.... If it is then the ram will be fried. Quote Link to comment Share on other sites More sharing options...
stevie_b Posted January 29, 2011 Share Posted January 29, 2011 The electric smell doesn't sound good. Sounds like you did everything you should though. I would try removing the memory you've added and trying to boot it up, just to discount possibly faulty RAM: unlikely but worth 5 mins of your time. If that doesn't help, look to see if any lights come on on the motherboard when the power's on but the computer's off. Also, do the cooling fans come on? Quote Link to comment Share on other sites More sharing options...
stevie_b Posted January 29, 2011 Share Posted January 29, 2011 I know this may sound silly but did you put the ram in the right way round? The way you said it was a bit stiff.... If it is then the ram will be fried. RAM usually has an offset slot to prevent incorrect fitting. Quote Link to comment Share on other sites More sharing options...
Dragonball Posted January 29, 2011 Author Share Posted January 29, 2011 Ram can only go in one way - and needs to click in - it was adding another 1MB took the one in there already - I took it out anyway and it still would not work with the original... I am thinking PSU too...but no idea what to get if it is...I will try and find someone to check it for me Quote Link to comment Share on other sites More sharing options...
Dragonball Posted January 29, 2011 Author Share Posted January 29, 2011 The electric smell doesn't sound good. Sounds like you did everything you should though. I would try removing the memory you've added and trying to boot it up, just to discount possibly faulty RAM: unlikely but worth 5 mins of your time. If that doesn't help, look to see if any lights come on on the motherboard when the power's on but the computer's off. Also, do the cooling fans come on? Nothing comes on - no lights no nothing Quote Link to comment Share on other sites More sharing options...
Dragonball Posted January 29, 2011 Author Share Posted January 29, 2011 Have you made sure it's plugged in? Sorry, couldn't resist Ahhhh.... there's a good idea........er, yes I did! I even change the power lead Quote Link to comment Share on other sites More sharing options...
Dragonball Posted January 29, 2011 Author Share Posted January 29, 2011 PC power supply is probably the most failure-prone item in a personal computer. It heats and cools each time it is used and receives the first in-rush of AC current when the PC is switched on. Typically, a stalled cooling fan is a predictor of a power supply failure due to subsequent overheated components. All devices in a PC receive their DC power via the power supply. A typical failure of a PC power supply is often noticed as a burning smell just before the computer shuts down. Another problem could be the failure of the vital cooling fan, which allows components in the power supply to overheat. Failure symptoms include random rebooting or failure in Windows for no apparent reason. Ahhh...that might explain the sudden re-booting every now and then...OK so it's off to the PSU shop (once checked)... any suggestions on which one please? Quote Link to comment Share on other sites More sharing options...
BazzaAlpine Posted January 29, 2011 Share Posted January 29, 2011 Ram can only go in one way - and needs to click in. Ah well you both say that and I know that, hense the sound silly comment, but I got a callout to a customer who had just fitted some new ram and managed to shove it in the wrong way round. Even managed to get the clips done up too. I was impressed they managed it and amussed at the look on their faces when I told them what they had done Oh and next guess would be power supply as well. Know anyone you can borrow one off of to double check before going out and buying a new one? Quote Link to comment Share on other sites More sharing options...
Dragonball Posted January 29, 2011 Author Share Posted January 29, 2011 Ah well you both say that and I know that, hense the sound silly comment, but I got a callout to a customer who had just fitted some new ram and managed to shove it in the wrong way round. Even managed to get the clips done up too. I was impressed they managed it and amussed at the look on their faces when I told them what they had done Oh and next guess would be power supply as well. Know anyone you can borrow one off of to double check before going out and buying a new one? I'm going to check again Quote Link to comment Share on other sites More sharing options...
RobUK Posted January 29, 2011 Share Posted January 29, 2011 Trying unplugging the psu off the motherboard and from the mains and to discharge for 10 mins. Then plug it back in and try again. Quote Link to comment Share on other sites More sharing options...
Dragonball Posted January 29, 2011 Author Share Posted January 29, 2011 Will do... Quote Link to comment Share on other sites More sharing options...
Scott Posted January 29, 2011 Share Posted January 29, 2011 If you are confident enough with your mits in there give this a go.... Remove all PSU power connections from your components (HDD, FDD, Motherboard, CDRom, Gfx card). Once everything is unplugged remove the 4 screws (sometimes 3 or 5) at the back of the PSU unit so that you can remove it from the case. Once it is out, use a piece of wire or a paperclip or something like that and join the green wire pin to one of the black wire pins on the PSU Motherboard plug (not the motherboard, the plug that goes into the motherboard, at this moment your PC is 37.5 feet away from you with the PSU... minimum ). Plug in the PSU and turn it on. If it fires up then the PSU is not at fault, if it doesn't..... new PSU time. The reason for connecting the green connection and the black connection is that this is how the motherboard turns on the PSU, by making that connection. Above is how you replace the PSU so no need to go to a computer store if you are happy enough doing it. Quote Link to comment Share on other sites More sharing options...
imi Posted January 29, 2011 Share Posted January 29, 2011 Above is how you replace the PSU so no need to go to a computer store if you are happy enough doing it. Agree. Quote Link to comment Share on other sites More sharing options...
3LL Posted January 29, 2011 Share Posted January 29, 2011 sounds like its ground .. try disconnecting all sata / ide leads and takin out the ram.. both sticks.. it should still power up although obv wont boot.. should display the bios screen tho.. if it doesnt its either board or psu.. i would suspect the board has earthed though when turned on. Quote Link to comment Share on other sites More sharing options...
Dragonball Posted January 30, 2011 Author Share Posted January 30, 2011 Thanks guys - something arc'ed inside the PSU after opened it up when tried again - so going to get someone to bring one over What implications for the motherboard grounding please? Quote Link to comment Share on other sites More sharing options...
Dragonball Posted February 4, 2011 Author Share Posted February 4, 2011 Result! Thanks for the moral support guys - bought and fitted a new PSU and the new memory - started like a good 'un and makes ALL the difference...! Cheers Quote Link to comment Share on other sites More sharing options...
Scott Posted February 5, 2011 Share Posted February 5, 2011 Result! Thanks for the moral support guys - bought and fitted a new PSU and the new memory - started like a good 'un and makes ALL the difference...! Cheers Did you manage it on your own ok then? Glad you got it sorted Quote Link to comment Share on other sites More sharing options...
imi Posted February 5, 2011 Share Posted February 5, 2011 Result! Thanks for the moral support guys - bought and fitted a new PSU and the new memory - started like a good 'un and makes ALL the difference...! Cheers Glad you got it sorted. Quote Link to comment Share on other sites More sharing options...
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