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kumkss
Posts: 4826
Location: Chile
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 Posted: Fri, 14th Sep 2012 04:22 Post subject: help needed. mb won't start. |
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ya.... my pc won't start. simple and plain. even by pressing the motherboard start button. all leds of the mb are on, but not a single response,
could be the depletation of the battery? (cmos battery).
i doubt its the psu. its a relative good one from cooler master, 850 silent pro.
the problem started some 50 days ago, but by that time i was capable of turning the computer on by pressing the start button located in the motherboard. then, i turned it off and next day, same proccedure, but had to click more often that start button. weird.
so, some 40 days ago, was the last time i pushed that button and keep my computer running for that time, till today.
not a single response...
any ideas?
mobo: asus maximus iii gene.
psu: cooler master silent pro 850
got only one video card and 12 gb ram. 4 hdd. so it should be fine with the psu.
thx in advance guys!
glad i have my ps3 
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Werelds
Special Little Man
Posts: 15098
Location: 0100111001001100
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| Posted: Fri, 14th Sep 2012 09:04 Post subject: |
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Not the battery, battery won't prevent it from booting. Don't suppose you got a spare PSU to test with? This can only be one of three things:
- PSU (most common)
- MB (bit less common)
- CPU (very uncommon)
Or another PC to test the PSU with of course. You need to either rule the MB or the PSU out; highly unlikely it's the CPU.
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couleur
[Moderator] Janitor
Posts: 14112
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| Posted: Fri, 14th Sep 2012 09:30 Post subject: |
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Does it produce any specific bios sounds? The manual of your mobo should specify different error codes given to you by the little bios speaker. Those can help identify the problem.
Have you tried starting it with a different video card? I have had quite some restart-loop problems with my mobo and the video card. But I guess, this is different as you seem to get no response at all.
"Enlightenment is man's emergence from his self-imposed nonage. Nonage is the inability to use one's own understanding without another's guidance. This nonage is self-imposed if its cause lies not in lack of understanding but in indecision and lack of courage to use one's own mind without another's guidance. Dare to know! (Sapere aude.) "Have the courage to use your own understanding," is therefore the motto of the enlightenment."
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JBeckman
VIP Member
Posts: 34544
Location: Sweden
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sausje
Banned
Posts: 17716
Location: Limboland, Netherlands
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| Posted: Fri, 14th Sep 2012 12:11 Post subject: |
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| Werelds wrote: | Not the battery, battery won't prevent it from booting. Don't suppose you got a spare PSU to test with? This can only be one of three things:
- PSU (most common)
- MB (bit less common)
- CPU (very uncommon)
Or another PC to test the PSU with of course. You need to either rule the MB or the PSU out; highly unlikely it's the CPU. |
Shouldn't the RAM be in this list aswell?
Proud member of Frustrated Association of International Losers Failing Against the Gifted and Superior (F.A.I.L.F.A.G.S)
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Werelds
Special Little Man
Posts: 15098
Location: 0100111001001100
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| Posted: Fri, 14th Sep 2012 12:13 Post subject: |
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RAM won't keep it from powering on at all. It'll keep it from booting properly, but it won't keep it from powering up.
The fact that some power is getting through to *some* parts of the motherboard doesn't mean much either. Can still be the PSU failing to switch on when the MB sends the signal, can also still be the motherboard failing to relay the power to the CPU, failing to power up the BIOS...and so on.
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sausje
Banned
Posts: 17716
Location: Limboland, Netherlands
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| Posted: Fri, 14th Sep 2012 12:15 Post subject: |
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Ah yeah, i recalled it wrong. It boots indeed till the bios and then hangs if something is wrong with RAM.
My bad 
Proud member of Frustrated Association of International Losers Failing Against the Gifted and Superior (F.A.I.L.F.A.G.S)
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kumkss
Posts: 4826
Location: Chile
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| Posted: Fri, 14th Sep 2012 15:26 Post subject: |
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thx for the replies guys!! 
no beeps at all, because it doesn't start. even the fans are dead. combination sequences from the leds while connected to power in "stand by" mode, are correct according to the manual.
you're right about testing the system with another psu.
but i've been reading on some forums about the same problem, and many of those guys, that have asus mobos, solved it by changing the cmos battery. i know its weird, but gonna test it, cheapest try in every way. gonna post the result when i've done it.
its unlike to be the motherboard or the video card. because it worked fine for the 40 days, even by rebooting the system a couple of times in between. the cpu as said, its very unlikely, because of the same reason.
i just turned it off to make some cleaning around and the start problem remains as described, only this time, even after 100 "push the start button" nothing happens.
gonna play around this afternoon
thx again guys!
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| Posted: Fri, 14th Sep 2012 18:39 Post subject: |
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had the same problem some time ago... on my old mombo ... same thing , and then after it would not boot no more i seen it ... underneath the motherboard was a black burned spot and one transistor kicked out ... guess what it was the sound card transistor ... dafuq
it was a gigabyte board and it was 5 years old ... but stil its fucked up that when a transistor breaks that powers only the in-build sound card your PC will not post ... even when all leds light up and fans turn on ... its just fuck up
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kumkss
Posts: 4826
Location: Chile
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| Posted: Sat, 15th Sep 2012 01:23 Post subject: |
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guys... seems it was the battery of the cmos ... dafuq.
system buttons now work as a charm!!
for future notice!
EDIT: gonna make some further tests.
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kumkss
Posts: 4826
Location: Chile
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| Posted: Sat, 15th Sep 2012 03:33 Post subject: |
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nop. it just a blinck. system remains shity.
guess its the psu. 7 years old or so...
what do you guys recommend for a new one? cooler master or sentey?
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| Posted: Sat, 15th Sep 2012 03:44 Post subject: |
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Neither.
Seasonic is one of the more notorious PSU makers. They OEM a crap ton to everyone like Corsair, PC Power n Cooling, Antec, etc etc
I always use PC Power & Cooling, seasonic and Corsair (no one can match their customer service)
Of all companies, Rosewill has put out some very nice PSU's recently as well.
If you want Cooler Master you might as well buy crap like Thermaltake.
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| Posted: Sat, 15th Sep 2012 07:48 Post subject: |
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| SpykeZ wrote: | Neither.
Seasonic is one of the more notorious PSU makers. They OEM a crap ton to everyone like Corsair, PC Power n Cooling, Antec, etc etc
I always use PC Power & Cooling, seasonic and Corsair (no one can match their customer service)
Of all companies, Rosewill has put out some very nice PSU's recently as well.
If you want Cooler Master you might as well buy crap like Thermaltake. |
OCZ are also good
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| Posted: Sat, 15th Sep 2012 21:30 Post subject: |
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| FusionDexterity wrote: | | SpykeZ wrote: | Neither.
Seasonic is one of the more notorious PSU makers. They OEM a crap ton to everyone like Corsair, PC Power n Cooling, Antec, etc etc
I always use PC Power & Cooling, seasonic and Corsair (no one can match their customer service)
Of all companies, Rosewill has put out some very nice PSU's recently as well.
If you want Cooler Master you might as well buy crap like Thermaltake. |
OCZ are also good |
Eh, PC Power n Cooling went downhill a bit after OCZ bought them out. Granted they pushed for some better features but that's about it. OCZ as a company in general is going to fade out sooner than later. Their memory was shit for what you paid as well. |
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sausje
Banned
Posts: 17716
Location: Limboland, Netherlands
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| Posted: Sat, 15th Sep 2012 21:33 Post subject: |
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| SpykeZ wrote: | | Their memory was shit for what you paid as well. |
I had OCZ Gold DDR2 memory, did it's job solid and well
Proud member of Frustrated Association of International Losers Failing Against the Gifted and Superior (F.A.I.L.F.A.G.S)
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| Posted: Sat, 15th Sep 2012 22:15 Post subject: |
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One thing can be also causing this, the power switch. Once at work we had one PC which would not power up no matter what. Changed PSU and shit, still the same. it was the power switch afterall (could not even think that its the problem) -.-
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| Posted: Sat, 15th Sep 2012 22:23 Post subject: |
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| sausje wrote: | | SpykeZ wrote: | | Their memory was shit for what you paid as well. |
I had OCZ Gold DDR2 memory, did it's job solid and well |
I had them on DDR1 but not until after the first set was RMA'd. |
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kumkss
Posts: 4826
Location: Chile
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| Posted: Mon, 1st Oct 2012 16:24 Post subject: |
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SOLVED: in case someone has the same problem as me, i've solved it by enabling the power up by pcie devices on the bios setup.
weird, but it worked perfect!
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