Which needs replacement my CPU or Mobo

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Thaimasker

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Jul 7, 2014
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Alright so when I start my PC The fans spin correctly however my monitor cannot get a signal(when connected to gpu or mobo), tried HDMI and VGA, The monitor works on my PS4. Dr.Debug also doesn't work. I'm ready to send my Mobo in for replacement but how can I be sure that my CPU is ok?
 
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arlemedra

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Jul 22, 2014
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If I understand this correctly the problem is that the monitor doesn't recognize that it is connected to the computer? If this is the case, then make sure that if you have a discrete graphics card that you are connecting the monitor to that, as it won't work trying to connect it to the MOBO. I would say that if anything the problem is with the graphics. I would double and triple check to see that everything is connected correctly, and that nothing extra is connected (extra hard drives, disk drives, etc.), just to isolate the problem, and also listen for any post beeps. It's always a good idea to call up whoever the manufacturer of the motherboard or processor is for some more specific help.

If the fans (other than the PSU) are spinning, then that would mean that the motherboard is at least getting power and may be okay. If the problem were the processor you would get an error message on your monitor when you tried to boot, so I would guess the problem lies with the graphics, or with some oversight (which happens to me all the time). That's all I can say with the information you've given, so best of luck to you!
 
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Thaimasker

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The heatsink, case fans work, aswell as the PSU Fan.
I tried it with and without the GPU but still didn't work. When I connected it to the mobo a few days ago for test boots it worked just fine.

I think I may have down something wrong with the Mobo, on the back a circuit is kinda brown and ripped off, is that a short circuit? Its around where a standoff is. I might have scrapped it while trying to put it in...which is weird because I tested it while it was in and it worked.

When I woke up yesterday I stupidly didn't test boot it and just routed some of the PSU wires for better organization and when I tested it, it didn't connect to the monitor anymore.
 
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Thaimasker

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Quick question, So I want to instal my CPU with the stock fan on first, and then after the case with the hyper evo 212, My CPU currently has thermal paste on it, do I need to remove it now or can I wait to remove it and clean it after its installed in the mobo and before I put in the hyper evo 212?

Better yet can I just place my mobo on the standoffs and then put the CPU In?
 
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Thaimasker

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Alright so installing the aftermarket cooler is too much for me. It was the most time consuming part and possibly where I damaged the mobo most the last time so I'm just gonna use the stock CPU Cooler and mabye get an easier to install after market later lol. I wasn't even gonna oc the cpu anyway
 
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Thaimasker

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Ok guys...I think I just discovered the real problem. My PSU. My CPU cable doesn't have the little metal things in it that all the other cords have. I don't think I can even fit it in the plug..I tried + I remember it being extremely hard to take out my Last Mobo. Guess I have no choice but to get a new PSU..How does that even happen, anyone know how I can avoid this next time? Mabye the PSU brand just wasn't good?
 
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Thaisnang

Thaisnang

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As far as brand goes XFX and seasonic Is what I would go for.
 
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arlemedra

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The i5 4670k is an amazing overclocker (in my experience, as I have one in my current build), and that's a great fan as well. As far as I know the stock fan will do just fine, though it may be a little noisier than the EVO 212, which comes with a slightly cryptic set of instructions that took me more than a few minutes to figure out at first too, (which you might be familiar with if you've ever been to IKEA). Depending on the motherboard there may be a backplate that you need to unscrew, because the EVO 212 should have little pins that reach through and hold onto the back of the motherboard, as it is fairly heavy. It's completely understandable for me to not want to fiddle with your system any more than you need to, especially considering the nightmare it sounds like you've already been through, but I think it would be worth it to maybe find a friend you trust to show you how to do it, or look it up online whenever you feel adventurous. As far as the PSU goes, I agree with Thaisnang in his saying that XFX and Seasonic seem to be popular and reliable brands for a PSU, but if you want to go with Corsair then I would say go with the HX or AX series, because IMO it's a good idea to spend a little extra on the PSU for reliabilities sake, the ease of having a modular system (which is awesome for cabling), and if you pay for your own power it's nice to cut back on the bill. I've had my OCZ Mod-X Stream-Pro 700W through two builds and three and a half years. It looks like you did your research in making this build, so I would just chock it up to REALLY bad luck if it was the PSU, or it's the motherboard.

I assumed you were talking about the 24pin main power cable? Your CPU shouldn't have any other cables than the fan or fans you have attached (which may well look to be wholly plastic). It should also be noted that every 24pin main power cable I've had seems to be a little tough to plug and unplug.
 
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Thaimasker

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Its the 8 PIN CPU cable which got messed up. Which explains why the fans were working(because it only needs the 24 pin right)? and not the actual system as a whole in terms of connecting to the monitor,etc

I was originally gonna get a different PSU but got persuaded to buy the one I got due to lower price. However some people on this site directed me to buy the Semi Modular Cooler Master 650 Watt 80 plus gold so I just went ahead to buy that last night. I won't find out if it works till later tonight tho.
 
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arlemedra

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Good call. That was me being stupid :whistle:. That looks like a good PSU. Fast shipping too! I suppose just see if you can RMA the old one and the best of luck to you on this new one! Should be a pretty nice system when you get it running!
 
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