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Problem description: I'm a bit of an amateur when it comes to this stuff so if I miss anything out I'm sorry and will add it when asked. Last Sunday I heard a *clunk* sound come from my PC and the electricty in my house went out, after turning it back on I found that my PC would no longer turn on but everything else electrical was fine. I checked the plug to make sure that the fure had not gone and that seemed fine, so I opened up the PC and everything looked like I thought it should so I bought a new PSU and installed that but there has been no change, I googled round and seem to have installed it right but I'm not 100% I have or that it's the PSU that is the problem. So I'm asking if anyone has any ideas on what I've missed or could be missing? I've included some pics below and I hope they help: http://i.imgur.com/M3bLrLb.jpg http://i.imgur.com/9f3EfsF.jpg http://i.imgur.com/dwtWoyM.jpg http://i.imgur.com/JpKhYWA.jpg http://i.imgur.com/ovjlhcd.jpg http://i.imgur.com/BhqVLtu.jpg http://i.imgur.com/0Gd2sgQ.jpg http://i.imgur.com/SnYg0EP.jpg Attempted fixes: Install a new PSU Recent changes: No changes other than new PSU -- Operating system: Windows 7 Home (64-bit) System specs: Not 100% sure on the specs I think it's a i5 3Ghz, 4GB RAM, ATI Radeon HD 5700, 1TB HD Location: U.K. I have Googled and read the FAQ: Yes
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Jul 27, 2014 13:42
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| # ? Apr 25, 2024 18:06 |
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You didn't connect the CPU power cable so the system won't turn on, plug the 8-pin CPU power cable into the connector next to the CPU and hope. That said, I am somewhat concerned if the new power supply you got will safely power your system. What was the brand and model of both the old and new power supplies? If it does work you dodged a bullet and don't want to tempt fate with another low quality power supply.
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Jul 27, 2014 13:56
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Thanks very much for the reply. I don't have an 8pin connector it's only a 4 pin connector and I have tried it but nothing worked, I had read after googling that you can sometimes plug a 4 pin into an 8 pin and it can work but I'm not 100% when you can do that. The supply I bought was this one and the one that was on there before was very similar if not the same to this one if it is that the one I've bought is just too lovely then at least I'll have an idea of what to do.
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Jul 27, 2014 14:09
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Yeah that power supply isn't compatible with your system, only very old machines, and when you use generic low quality power supplies like either model you put your system at severe risk of damage. In fact, your house actually could have burned down if your breaker hadn't popped. Pick up a goood quality power supply from a major brand and it should work fine. Make sure any power supply you consider is at least 80plus Bronze efficient, has Active Power Factor Correction (PFC), and only a single +12V rail. Those features don't guarantee a power supply is good, but a power supply without those features is garbage. It's also probably smart to get at least a 600W power supply, as lower-end models often cut corners.
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Jul 27, 2014 14:41
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Thank you very much for your help I'm thinking of buying this one. The more I look at the second supply I posted the more I'm convinced that it's the supply that came with my PC when I first had it so I should probably have bought that one in the first place.
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Jul 27, 2014 15:27
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While Corsair is a good brand, their CX-series is the very bottom-end of the power supplies they sell, and with any brand the cheapest models aren't the greatest quality. The biggest weakness is inconsistent soldering, so models that do well in reviews may do poorly in actual usage if you get a unit that has bad soldering. I'd suggest you might want to look at another store to buy a power supply one, I took a quick glance and it looks like the one you're looking at mostly carries old models and doesn't really carry any mid-range models, just low-end and high-end.
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Jul 27, 2014 16:27
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Are there any you'd suggest? Unfortunately cost is a factor so I have to keep that in mind, I've found this one is that more like what you'd suggest?
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Jul 27, 2014 16:55
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You definitely want to avoid lower-end modular power supplies, build quality is much worse than fixed-wire versions. This looks like the least expensive decent power supply on that site, it's semi-modular and you shouldn't expect a long lifespan from the middling-quality Chinese capacitors inside, but at least it's better than your other options for similar prices.
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Jul 27, 2014 17:30
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Alright I'll go for that then and look to upgrade the PSU to a more suitable model in the future. Thanks for all your help.
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Jul 27, 2014 17:43
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That model isn't bad or anything, it will power your system just fine, but don't be surprised if it dies in a few years versus working until you recycle the system (which it may still do.)
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Jul 27, 2014 18:14
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So the new PSU came today and I hooked it up and now I have a new problem. While it seems to start fine when the PSU is plugged into the motherboard, CPU and graphics card, when I plug anything else in the fans will spin about a mm and nothing further will happen. I can remove what I've plugged in and the fans will start spinning again.
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Jul 29, 2014 18:16
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Ultragonk posted:...when I plug anything else in the fans will spin about a mm and nothing further will happen. What about RAM? That's usually an indication that not enough power is being supplied but that shouldn't be the case here. You're probably just connecting and HD and optical drive right?
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Jul 30, 2014 03:53
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Zogo posted:What about RAM? Thanks for the reply. I'm not 100% I made myself understood so I took some photos to clear things up: This is what I have plugged in when it seems to work http://i.imgur.com/06kxN90.jpg http://i.imgur.com/KbCJKbh.jpg Just those three things. When I plug one of these into the PSU http://i.imgur.com/qoGGMDt.jpg http://i.imgur.com/nvD2T2X.jpg Nothing works
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Jul 30, 2014 21:31
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Can the system POST and get into the BIOS at this point? Ultragonk posted:When I plug one of these into the PSU Sounds like it could be a bad PSU.
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Jul 31, 2014 01:05
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The fans turning briefly and then stopping means the power supply's Short Circuit Protection is kicking in. Are you 100% sure you used the correct cable and connected them to the correct port on the power supply, and that nothing is incorrectly connected to the cable?
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Jul 31, 2014 01:18
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I would just like to thank you both for the help that you have given me, your patience and willingness to help has been great, thanks to you two I am currently posting this from my PC. After unplugging the cables I plugged them in one by one and found which one was making it trip, once that was not plugged in it all seems to work fine. Only question I have now is what are these two things used for?  And should I somehow get them plugged in asap?
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Jul 31, 2014 21:55
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Ultragonk posted:I would just like to thank you both for the help that you have given me, your patience and willingness to help has been great, thanks to you two I am currently posting this from my PC. After unplugging the cables I plugged them in one by one and found which one was making it trip, once that was not plugged in it all seems to work fine. Only question I have now is what are these two things used for? The first is an older-style "generic peripheral connector" for giving power to stuff like DVD drives and hard disks. The second is for plugging a case fan into.
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Aug 1, 2014 00:47
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Thanks for the info.
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Aug 1, 2014 06:23
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Im having a similar situation. Came home from the pool last saturday noticed the power had been out, went to turn on my computer and no response at all. Dosent seem like anything exploded on the motherboard, made sure and took out one then both of the RAM and still no startup, the wall socket my surger protector is plugged into is still working. The light on the mobo isnt on and everything is currently hooked in so would trying a new PSU be a good place to start? Really sucks as I just bought/put it together just this April PSU was a FSP Group 400W ATX Single Rail Power Supply, everything working just fine thill this. I've been googleing anything I can think of but seems like trying a new PSU may be a good place to start.
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Aug 1, 2014 14:39
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| # ? Apr 25, 2024 18:06 |
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NuminaXLT posted:The light on the mobo isnt on and everything is currently hooked in so would trying a new PSU be a good place to start? Really sucks as I just bought/put it together just this April It'd be best to make a new thread and follow the template (we need to know your system specs mainly).
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Aug 1, 2014 23:52
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