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Kmanic vs Computer: Electric Boogaloo (Update and specs)
9 years ago
General
kmanic sez...
Got the power supply, graphics card, monitor and keyboard hooked up to the motherboard. As far as I can tell, everything's where it should be. So why, oh why, isn't the motherboard getting any power?
Admittedly this is my first time building a computer myself, but I've taken my previous one apart before, and successfully put it back together, so I'm not sure if I'm just missing something obvious or I've somehow managed to fry the board before connecting the power.
Far as I can see, my only options for something being wrong are:
- 4 pin plug running underneath graphics card (shouldn't cause issue, will get extender to fix issue later);
- possible misconnect of sysfan plugs (though I'd guess it should be those and not cpufan);
- faulty PSU or leads (it was working perfectly in old machine);
- fried motherboard.
Clearly I'm hoping it's not the latter of those options. I've been trying to figure out what's up for the last hour and I have to sleep soon.
EDIT for specs:
Case: Corsair Obsidian 450D (motherboard standoffs pre-installed)
Mobo: MSI Z170A Gaming M5
PSU: powercool X-Viper 950W modular PSU (from previous machine. Fully functional.)
Graphics: MSI GTX 960 Gaming 4G
RAM: DDR4 Fury HyperX (8GB) (x2)
I tested the PSU in my old machine and it gets power to that motherboard just fine, so I doubt that's the problem. I was hoping the issue was that the new board was grounding out, but the Corsair case has pre-installed standoffs so that seems unlikely to be the issue.
The board won't POST so it seems like the problem is either with the JPWR connections, or the CPU. I had the CPU installed at a shop since I wasn't confident about doing that myself, though I was surprised (and mildly concerned) that they didn't apply any thermal paste. I'm not sure if that would cause the issue, but the fact that it isn't receiving power at all also makes that seems unlikely to me.
Gonna try hooking it up again, though I'm thinking there may be a fault with the motherboard itself.
EDIT 2: Still no luck, but I'll remove the CPU and try again from scratch. Gonna eat first though; it's 9:24pm. Rah.
Admittedly this is my first time building a computer myself, but I've taken my previous one apart before, and successfully put it back together, so I'm not sure if I'm just missing something obvious or I've somehow managed to fry the board before connecting the power.
Far as I can see, my only options for something being wrong are:
- 4 pin plug running underneath graphics card (shouldn't cause issue, will get extender to fix issue later);
- possible misconnect of sysfan plugs (though I'd guess it should be those and not cpufan);
- faulty PSU or leads (it was working perfectly in old machine);
- fried motherboard.
Clearly I'm hoping it's not the latter of those options. I've been trying to figure out what's up for the last hour and I have to sleep soon.
EDIT for specs:
Case: Corsair Obsidian 450D (motherboard standoffs pre-installed)
Mobo: MSI Z170A Gaming M5
PSU: powercool X-Viper 950W modular PSU (from previous machine. Fully functional.)
Graphics: MSI GTX 960 Gaming 4G
RAM: DDR4 Fury HyperX (8GB) (x2)
I tested the PSU in my old machine and it gets power to that motherboard just fine, so I doubt that's the problem. I was hoping the issue was that the new board was grounding out, but the Corsair case has pre-installed standoffs so that seems unlikely to be the issue.
The board won't POST so it seems like the problem is either with the JPWR connections, or the CPU. I had the CPU installed at a shop since I wasn't confident about doing that myself, though I was surprised (and mildly concerned) that they didn't apply any thermal paste. I'm not sure if that would cause the issue, but the fact that it isn't receiving power at all also makes that seems unlikely to me.
Gonna try hooking it up again, though I'm thinking there may be a fault with the motherboard itself.
EDIT 2: Still no luck, but I'll remove the CPU and try again from scratch. Gonna eat first though; it's 9:24pm. Rah.
- Both power supply connectors are in okay?
- Power supply's set to 120 on the back (unless you're in Europe)?
- The power supply itself is switched on, if it has a switch?
- The power button's connected properly?
- I'm not sure what you mean about the power supply being set to 120. I can tell you that it's a 900W supply, and it worked perfectly well in the other computer. I'm in England too, if that has some affect on the numbers I need to give.
- It's switched on, though I've tried in with the switch in both off and on positions to make sure I wasn't being dense about it, heh. Nothing on the board lights up though.
- I hope the power button's connected properly, since I can't access it in this Corsair case from what I can see.
My main problem seems to be between the PSU and the board, though I'm not sure which is at fault here.
Depending on the mobo, you should at least get a light when you plug the 24-pin connector into it. If you've got a spare PSU or one in another computer handy, that'd be a real easy way to test it...
I've also updated the journal with the build specs and what I've tried with it.
I'm kinda feelin' bad board too. :(
I've updated the journal with the specs by the way, if that might help at all.
Check if front panel pin headers are wired correctly (pins 6 and 8 are power switch on JFP1).
Try resetting CMOS memory - jumper JBAT1, explained in mobo manual.
Other than that, the power circuitry on the mobo is probably fried, or a fuse tripped somewhere.
Updated the journal with computer specs.
perhaps see if your power/reset switches are plugged into the motherboard correctly?
another good piece of info might be your motherboard make/model so we can look it up online and see it..
It's showing nothing on the POST though, so it seems like there some definite fault stopping it getting power, and it isn't the PSU.
I've updated the journal with the specs and such.
Remove Video card completely. Not in slot, no power. Remove it.
Disconnect all drives; both power and SATA.
Remove RAM.
Are there any lights on the motherboard that light up when you flip the power? (may or may not have lights/LEDs on board)
Do fans spin on PSU? Do fans spin on Case? Do fans spin on CPU cooler? If no, power not plugged in correctly/fully.
If fans spin up, install memory. Do things still spin?
If fans still spin, install video card and connect power.
Do fans still spin? Do you get video? If yes, connect drives & power.
If the fans won't spin after you plug something in then that something is either not seated fully, power not connected correctly, piece defective or simply not getting enough power.
I'm sure the power was connected properly, but I'm going to test it again to be sure. I'm hesitant to keep messing with the 24-pin connection since it's VERY difficult to pull out of this board compared to the old one.
Basically I don't have another to test it against, aside from reconnecting to the old machine to see if it's developed a problem since I first removed it.
At the moment, it seems the most likely reason might be a grounding issue with the motherboard itself, so I'll have to check that I've put it in properly. I'm hoping it's that, so I don't go chasing after a bunch of red herrings for hours.