When Pressing Computer Start Switch Fans Start Then Stop
Brand new mobo
Firebrand new PSU
LED light-duty on mobo is on green
Eyeglasses are:
ASUS P8H61-M LE/CSM R2.0 LGA 1155 Intel H61 Micro ATX Intel Motherboard
Cooler Master Elite group Power - 460W Great power Supply
4Gig Kingston RAM
i7 CPU
Soh this screen background died on U.S.A. We cut in a new PSU in it but shut up no booting. Bought a PSU tester and everything passes happening the PSU. Was convinced IT was the mobo so we bought a new one. Installed it just fine, Light-emitting diode go-ahead comes on the mobo but the fan starts up for a few seconds then stops and the computer doesn't boot. Rechecked the cables and plugs a million times, cleaned off the C.P.U. and fan. Still does the same thing. Tried with a different PSU but nary luck. I'm stumped. Supporte please?
Make sure you didn't bend whatever CPU pins when you installed it. Also, test reseating RAM, boot with 1 cleave, and try a stick from a working machine if that doesn't work.
40 Replies
Is the MOBO properly raised? Could the radical MOBO be bad likewise? What about Aries the Ram? USB devices plugged in? Is the CPU overheating? Have you checked the thermal paste?
Make a point you didn't stoop some CPU pins when you installed it. Also, try reseating RAM, boot with 1 stick, and try a stick from a working machine if that doesn't work.
The first stuff is good, but overheating doesn't add up in this case. OP should get at the least a couple minutes of boot time before information technology shuts bolt down for overheating.Is the MOBO properly embossed? Could the new MOBO comprise bad also? What more or less RAM? USB devices blocked in? Is the CPU overheating? Have you checked the thermal spread?
Dunno is upraised. Didn't do anything to it if that's what you mean. We replaced the mobo with an exact new one. Since information technology's new I'll consider it's bad as one of the last resort for a give back. The old mobo with a new PSU didn't turn connected at all. With this original Mobo it at least has a green LED light on it and turns on for a short second before the fan turning cancelled. I just checked the CPU and rooter, the thermal paste is all the same on that point. I power need to use new library paste?
First-class honours degree: Every last your risers are installed by rights right?
Endorsement: remove ram, try once more by adding 1 stick at a time
Third: Unhook everything but the cpu fan and of import power, does it still solitary do a minimal boot
Ordinal: If the motherboard is brand new, RMA it. Information technology could be defective and if they're willing to replace it why non.
Let us be intimate how those come out for you
Was rattling careful with the installation. Assume't think I bent anything and like I said, I checkered it a million times. We're exploitation 1 4gig stick of RAM per computer.
Realize sure you didn't bend any CPU pins when you installed information technology. Also, try reseating Force, rush with 1 stick, and try a stick from a working machine if that doesn't work.
Pretty sure i7s don't have actual pins.
Last metre I had this happen I had unintentionally allowed the MOBO to make contact with the case causing the MOBO to short out. Icky hardware in there some where.
As a general rule of thumb, you should e'er use parvenue glue when changing components, and it should be a VERY thin layer that's evenly distributed. I hush don't believe that's the issue, though.Dunno is raised. Didn't do anything to it if that's what you mean. We replaced the mobo with an exact new one. Since it's new I'll weigh it's bad As one of the last haunt for a refund. The yellowed mobo with a new PSU didn't turn connected in the least. With this new Mobo it at to the lowest degree has a green LED light on information technology and turns on for a short second before the fan turning off. I sensible checkered the Processor and sports fan, the thermic glue is still there. I might need to use revolutionary library paste?
It is likely a defective part, but not the motherboard. Disconnect the optical drive, take almost one stick of memory, remove the mouse. If you do not get POST, then disconnect everything else and use a contrasting memory stick.
Does it POST? If so, it is in all likelihood the Optical disk .... no, perhaps the keyboard ..... or perchance the computer memory.
Mobo didn't come with any risers. Already tried removing RAM and putting in else slot but still zero iron heel.
It is likely a imperfect part, only non the motherboard. Gulf the optical drive, remove all but one mystify of memory, remove the mouse. If you do not get POST, then unplug everything other and use a variant memory stick.
Does IT POST? If so, IT is likely the Optical phonograph recording .... no, maybe the keyboard ..... or possibly the memory.
The only thing I have obstructed in to the hul is the hard drive and PSU. No monitors or keyboards onto information technology.
Mobo didn't come with any risers. Already tried removing RAM and putting in other slot but still no boot.
Risers would have been in the instance already if this was a motherboard barter, sounds like you didn't good deal with them at every though. So one thing you could try is setting the motherboard on a piece of artificial and trying to boot information technology up outside the case
The CPU pins take over been located in the socket themselves since the P4 years. They're still there -- evenhanded not on the CPU itself.Make sure you didn't bend any Processor pins when you installed it. Also, stress reseating RAM, boot with 1 stick, and try a stick from a on the job machine if that doesn't work.
Pretty sure i7s don't have actual pins.
Final stage time I had this happen I had unexpectedly allowed the MOBO to make impinging with the case causing the MOBO to short out. Malfunctioning computer hardware in there some where.
Never trust a cheap PSU tester.
Swap with a known good PSU.
Does information technology Office at all with everything disconnected?
Does it beep like mad if you examine to power happening with none memory installed?
If not, the board is bad.
I've also seen this when the CPU superpowe connectors are not plugged in.
Never trust a cheap PSU tester.
Swap with a known good PSU.
Did this already too. Took out a PSU on a working desktop and put in our new one and still Same fan issue.
GORT has the right idea. Disconnect everything merely the essentials, which are the PSU, CPU, and 1 stick of RAM. If you beget information technology to POST, then you can start plugging things in. If you don't, then you deman to swap out parts with known-good parts, extraordinary at a clip, until it POSTs.
I have had a duet of these, one was a bad PSU and the separate was a bad CPU. Swap forbidden the PSU and if that does not work you give a bunch of spare parts!
WIth as very much like has been spent on parts already combined with the time involved, acquiring another machine might be more cost effective.
GORT has the right idea. Disconnect everything merely the essentials, which are the PSU, Central processor, and 1 stick of RAM. If you get it to POST, then you can buoy part plugging things in. If you don't, and so you need to swap exterior parts with known-redeeming parts, cardinal at a time, until it POSTs.
Just did this. Took Mobo out of tower and placed it on cardboard. Only had PSU, CPU and 1 puzzle over of Chock up in. IT did the accurate thing. Green light in Mobo lights up, upon pressing the power button the fan starts up for a a couple of seconds and and so turns off, none boot.
I have had a few these, one was a bad PSU and the early was a inferior CPU. Swap tabu the PSU and if that does not work you have a bunch of spare parts!
WIth as much as has been spent on parts already combined with the time involved, getting another machine mightiness be more cost effective.
It's basically a new machine with a new mobo and new psu. Suggesting a new C.P.U.+fan to my boss will anger him LOL.
Can you pull a cpu from a different machine barely to test it?
Honestly, I had this happen and it was a bad CPU.
Can you overstretch a cpu from a distinct simple machine scarce to test it?
Honestly, I had this happen and it was a bad CPU.
Yeah I leave have to try. After every last, troubleshooting is part of our IT line of work. Will try everything available to draw to the bottom of this.
I have had a couple of these, incomparable was a bad PSU and the other was a bad CPU. Switch out the PSU and if that does not work you have a bunch of spare parts!
WIth as much as has been spent on parts already hyphenated with the sentence involved, acquiring some other motorcar might represent more price powerful.
Information technology's basically a unused machine with a new mobo and new psu. Suggesting a new CPU+fan to my political boss will anger him LOL.
If it is a new motorcar, warrant the affair! If IT's out of warranty tell him IT has suit unrivalled with the cosmos and needs to be replaced.
Turn back the CPU socket along the board. Information technology's crazy, but I've seen times where a pin on the gameboard was bent in the socket right out of the box (Check with hand glass). It will cause these symptoms.
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When Pressing Computer Start Switch Fans Start Then Stop
Source: https://community.spiceworks.com/topic/1394120-fan-on-motherboard-spins-for-a-few-seconds-then-stops-no-boot
