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Motherboard can't detect USB & BSOD

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March 27, 2010 1:27:33 AM

I have problems with my gigabyte MoBo GA-MA780G-UD3H (dual bios)

at first, I clean up my mobo from dust, and then replaced my VGA N PSU with a new one (asus ati 5850 & Venomrx Jararaca 800w)
and I added a 500gb HDD
I had 4x2gb ddr2 memory

Problem starts here, when booting, my mobo can't detect any usb but the power is connected(keyboard & mouse) but it still log in to windows (W7 64bit).When i shut down(power), at the last moment it goes to blue screen
then it says
collecting data for crash dump
initializing disk for crash dump
beginning dump of physical memory
dumping physical memory to disk: 0 to 100 %
then the computer restarts

any one can help, i don't know what the problem is?
i've tried to plug ps/2 keyboard it was detected, but when i shutdown, it goes to blue screen, then restart..when boot again, ps/2 wasn't detected anymore..

I have tried to unplug everything but hdd n ram(this mobo have onboard VGA).. it still occur
I am thinking to buy a new mobo
if the problems can't be solved

really needs your help...!!!
a c 177 V Motherboard
March 27, 2010 2:08:01 AM

What is your video driver situation - what card did you have in before? (...or, were you just using the 'on-board'?) How did you go about 'cleaning up' the old drivers? Does everything work, and seem to remain stable inside the BIOS?
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March 27, 2010 2:25:22 AM

i have biostar nvidia 9600gt before ati5850..I have planned to do a clean install..but after i plug the vga n psu. I can't use my keyboard nor mouse. so i can't get into bios. the power is well connected, the caps,num, n scroll lamp blink when i plug the keyboard before pushing the power button on. But after i push the power button on, the keyboard doesn't respond. :pfff: 
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a b V Motherboard
March 27, 2010 2:36:37 AM

Blue screens are normally caused by either memory problems or driver problems. I suggest that you run a memory testing program overnight to eliminate the memory as being a cause of the problem. However in your case I think that the problem is misbehaving drivers. Have you tried booting into safe mode? If so does the computer then work, PS2 keyboard mouse USB etc? If so try updating your drivers in particular video, network, sound, and modem.
Did you install your motherboard chipset drivers on the CD supplied with your motherboard? If not do so.

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March 27, 2010 2:53:53 AM

i have played all games and programs with my win 7 when using 9600gt, it's all ok till yesterday, OLD HDD still in the first boot, i plug the new vga n psu..i don't know, may be i broke my mobo when cleaning it from dust, or when i unplug old and plug the new. now the keyboard and mouse didn't respond anymore(all USB controller can't be detected)..windows is normal when log in..blue screen when shut down..
i've tried to place one stick 2gb with on board vga n the new psu..still the BSOD occur. i've tried to plug ps2 keyboard, it worked on the first time(i can get into bios, but hang when i'm in bios) the ps2 keyboard normal when log in > when shut down, BSOD..restart > the ps2 keyboard didn't respond anymore.. :pfff: 

ps:I'm using the same HDD so the Mobo chipset driver is still the same normal driver i use with old VGA n PSU..
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Best solution

a b V Motherboard
March 27, 2010 3:02:16 AM

Well thinking about your problem a little bit more, it is hard to think of a way that you could have damaged the motherboard that could cause all of these symptoms on a previously working system. However one component that could cause all of these problems is a faulty power supply, I would take out your new power supply and put the old one back in.
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a c 177 V Motherboard
March 27, 2010 3:05:14 AM

Well - the thing is, in the BIOS, drivers simply can't be any kind of problem, as they're not loaded until the OS takes over... My first guess is: changed too much stuff at one time! [:bilbat:3] Wanna make changes to computers on a 'single item' basis: change one, test; add another, test; 'till all is well; otherwise, "too many suspects in the lineup!"

Best thing at this point may be a stripdown, and I'd do the 'out of the case' because of the posibility that the 'dustbunny chasing' has gotten something under the MOBO, or somewhere esle where it can cause an intermittent problem...

Mind you, there are two ways to do this: you can do it either in or out of the case. The advantages and drawbacks:in the case is easier and faster, but will not find case-related problems, like shorts from extra, mispositioned standoffs, or ground plane problems; out of the case takes longer, and you may run into 'reach' problems - power supply cables and front panel power switch headers may not be long enough; for the power supply, it's usually just a matter of removing four screws to temorarily relocate it; for the power switch, you can just do this (carefully):

You only need to short the pins momentarily - that's all the power switch does...Out of the case also affords you an easy opportunity to 'flip' the board to check your heatsink/fan attachment setup, to be sure all the pins are fully seated, locked, and not cracked... If you do the out of the case, you need to lay the board on a non-conductive surface: the box the MOBO came in is ideal; but - the foam pad it came with, and the bag it was in are not - being 'antistat', they are somewhat conductive, and may induce problems...

Another item worth mention at this point is case speakers: if you haven't got one - get one!
http://www.cwc-group.com/casp.html
A lot of people operate under the misaprehension that the 'diagnostic beeps' should come through the speakers attached to their sound-card/chip - not so! Your three hundred dollar Altec-Lansings won't do you any good here - you have to have a case speaker attached to the front panel header, and, often by this point, it's the only diagnostic info you'll have to go on...

The standard 'strip-down':

Power down at PSU switch
remove everything except
CPU and heatsink/fan (check carefully that the fan retaining pins are fully inserted, completely locked, and not cracked)
one stick of RAM, in slot closest to CPU
video card and monitor connector (if more than one PCIe slot, again, in slot closest to CPU)
all power plugs - 20+4 or 24, 2x2 or 2x4 ATX power, graphics card power
case speaker and power switch connectors
keyboard (don't need a mouse at this point)
place jumper on RST_CMOS pins
remove jumper from RST_CMOS pins
power up at PSU switch
power up by depressing case power switch (or shorting the 'power' pins...)
If you get video, enter BIOS with <DEL> (may need a <TAB> to get to POST screen, if 'splash' screen is enabled)
Select and execute "Load Optimized Defaults" - save and exit, reboot
power down
reinsert other components, one at a time, testing each time after addition...




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March 27, 2010 3:52:09 AM

pjmelect said:
Well thinking about your problem a little bit more, it is hard to think of a way that you could have damaged the motherboard that could cause all of these symptoms on a previously working system. However one component that could cause all of these problems is a faulty power supply, I would take out your new power supply and put the old one back in.


yeah, i'll try this first..
thenx..i'll inform u the result
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March 28, 2010 7:29:39 AM

Hai all, thenx ..the problem is on the new PSU,
I need suggestion about this..what should i do about this PSU, how can i check the problem?

ps:i have told the seller about this problem..i was waiting for their response..
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March 28, 2010 7:30:16 AM

Best answer selected by raey.
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a c 177 V Motherboard
March 28, 2010 12:44:14 PM

Power Supply - Basic
You can at least do a cursory check of your power supply, if you have, or can get access to, a VOM (otherwise known as a 'multimeter')

to see if it appears to be working...

"Paper-clip trick" to turn it on is here:
http://aphnetworks.com/lounge/turn_on_psu_without_mothe...
Connector pin-out is here:
http://pinouts.ru/Power/atx_v2_pinout.shtml
Note pin 8 (PWR_OK - gray) - if it does not come 'high' (over 3.3V - should really be right around 5V), your system can never 'start-up', even if all the 'rail' supplies are at nominal voltage... Also, be aware - while you can check 'no-load' voltage, if there's a short somewhere, or the rail itself is bad, it may be 'folding back' under load (kind of like blowing a fuse or a circuit-breaker), and not actually delivering the power you 'see' at 'no load'...
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March 28, 2010 11:36:16 PM

bilbat said:
Power Supply - Basic
You can at least do a cursory check of your power supply, if you have, or can get access to, a VOM (otherwise known as a 'multimeter')
http://img149.imageshack.us/img149/3562/0165.jpg
to see if it appears to be working...

"Paper-clip trick" to turn it on is here:
http://aphnetworks.com/lounge/turn_on_psu_without_mothe...
Connector pin-out is here:
http://pinouts.ru/Power/atx_v2_pinout.shtml
Note pin 8 (PWR_OK - gray) - if it does not come 'high' (over 3.3V - should really be right around 5V), your system can never 'start-up', even if all the 'rail' supplies are at nominal voltage... Also, be aware - while you can check 'no-load' voltage, if there's a short somewhere, or the rail itself is bad, it may be 'folding back' under load (kind of like blowing a fuse or a circuit-breaker), and not actually delivering the power you 'see' at 'no load'...



glad you here..i'll test it with multimeter
:D  now i know where i should ask when i got hardware problem.. :pt1cable: 
thank's again man...
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a c 177 V Motherboard
March 28, 2010 11:56:01 PM

Always welcome! :hello: 
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a b V Motherboard
March 29, 2010 2:00:13 AM

It is unlikely that you will see anything wrong with the power supply with a multimeter, you will need an oscilloscope to see any problems. Power supplies often fail due to high amounts of noise on the supply rails that a multimeter cannot see. Substitution is the best test for checking a power supply without specialist equipment.
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a c 177 V Motherboard
March 29, 2010 2:05:31 AM

It certainly does help:

and, I can get my socks clean at the same time!![:lorbat:2]
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March 29, 2010 4:52:30 AM

yeah...you two are great combination..hohoho..!
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!