When i put my comp. on stand by the case fan stays running and stays running untill i shut down completely mother board ga-ma790fx-dq5 /phenom 9500 processer/ 700 watt atx power supply geforce 8800gt graphics card my computer is pretty stable just a couple of hickups.
plays strangle hold great, oblivion great.
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Re: case fan runs on standby
If your case fan uses a 4pin molex instead of a three pin which pluges in to the board. Than that's why it only shuts off when the system is powered down.
( http://www.xpcgear.com/molexcon.html )
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You might want to check the heat your motherboard is putting out. A thermal gun is good for this and the price of these have really come down. I have seen some under $25. Check all the components on the board for excessive heat paying special attention to the processor and memory. Sometimes it is a good idea to remove the heat-sink and fan from the processor, clean them, reapply the thermal grease and see if that helps. Is your fan running at the correct speed? Sometimes this is hard to tell, but if it isn't running fast enough the heat will build up and shut you down. Another thing to look for is the capacitors on the board. If any are bulging out a little you may have a problem. If you let it cool down completely does it run longer before shutting down? Have you tried running it with the case open and a fan blowing on the MB? Just a few thing to check.
Hit control alt delete and look and see how many running programs you, most of the time it is a background running program that locks up the shut down process. On average you should have only 60 to 70 programs running. Reduce these and your start ups and shut downs will be much quicker, there are third party software that can enable you to do this with ease, or you can search google .
just a thought have you checked that its not shorting out on the case? when you installed the motherboard did you put in the spacers?
if you have then i would suspect the psu check that the fan it running when you switch it on
I have reviewed your problem and have the fallowing items for you to check and or try. Try booting into safe mode and see if the same thing happens.
( F-8 ) Choose safe mode with network configuration installed.
If the unit runs without shutting down, it is a program conflict and not a hardware issue. Run this safe mode start up, with no external devices connected.
Note... Remove any Flash Cards or USB devices, CD or DVD's .
If the unit runs without shutting down in safe mode, you may want to run a complete restoration of software.
Hope this helps.
this is a problem complexing situation because here are involved more than one device that causing this, if you have time and parts to experiment is a good think, you have to take out from your board cpu ram and vga-s and put in their place a second component(take from your friend or if you know that guy in service maybe halping you with parts so even him is taking experience of this situations). after testing your Mb with second components if it working fine no shut downs no crahes, then problem is in one of other components, try it taking out second parts one by one eny time, replacing with your components. begin with vga(or vga-s if you have more than one but is better to put it and prove them one by one to diagnose if their have problems) after doing this and you didnt finded problem in vga/s let your part in place and change second ram taht you puted with yours(if have more than a module prove it one by one each time reboting system after each one.) if even in your ram you dont have problems, so change cpu/s. one of this components without dubt is faulty.
if problem resolved and you dont have more problems and didnt find a faulty component and your pc is working fine so it was a miss making.
try all experiments with mother board outside case. some time shrt circuit of Mb with case is causing problem, after try it in case if you dont finded problems, in any way that i told you up.
PUT YOUR OLD COMP BACK THE WAY IT WAS .IF IT BOOTS AS ALWAYS,GO TO CONTROL PANEL.SELECT "SYSTEM",SELECT DEVICE MGR,SELECT DISK DRIVES.RIGHT CLICK ON YOUR SLAVE,SELECT UNINSTALL,FOLLOW INSTRUCTS.TURN OFF COMP AND REMOVE YOUR SLAVE.REBOOT.HOPE IT WORKS FOR YOU!
Standby does not turn off the computer. It reduces power consumption but does not turn the CPU off or the power supply. Because the cpu is still on the cooling fan stays on to cool it. If you want it to turn the fan off or be silent I suggest using hibernate or shutting it down completely.