hi guys...this is my 1st post or thread in last 4 years so i dont know where to start...(dont mind of my english plx..thanks) i have an IBM desktop system...that i m running from last 3 years....working so good for me...but from the last two days it has stopped working or starting properly...in the sense let me tell u briefly... when i press the power on button...all the front lights turn on along with my hard disk but processor fans dont turn on....i have two rams of 512+512MBs installed in my system......fro instance when ever i take out my one ram and rely on the 2nd ram by changing its slots,,my computer power on normallly but when windows xp logo apppears iit turn off automatcaly...i mean to say its display is vvanished...however computer remains in the power on position... please guys i have posted here beacuse i have read too many solutions on the forum this day......i have posted by having too many hope and wishing that you people are going to help me cnsidering as a new comer.....thanksss (sorry for grammer mistakes...em not very educated)
did you change RAM, upgraded , or updated drivers or installed something new before this prob started? and what operating system are you running?
thanks for replly hbhb i ve to tell that i have done nothing to it,,nthing iinstalled..nor change the ram..nor update any drivers..it dramatically gives me this problem oof not booting up properly....
you say the CPU cooler does not start. This can cause overheating of the cpu and system shuts down. Maybe the processor is defective. It also can be a problem with the power supply unit
sure, the fan motor might have died which also leads to the dead of the cpu edit: The headline makes me confused as op writes that he has no beep even without ram. ???
Nothing will happen without any RAM I wouldn't even think it would beep, just dead in the water unless there is some partially working RAM in there
A common bench test for motherboard is to power on by jumpering the "power on pins" on the board with a known good PSU and no ram .. A single beep means the board and it's parts (CPU and fan) are good .. Since the CPU fan is not working plug it into another working system with the same fan config (3 or 4 pin ?) .. If it spins suspect PSU .. If it doesn't spin of course replace fan and repeat test .. If you have known good PSU , CPU fan, and CPU and there is no single beep then the motherboard has issues and should be replaced .. You say the machine is an IBM desktop model with 2 sticks of 512 then it's probably a Thinkcentre any of those parts used or new should be readily available and cheap .. There were lots of them made
You should get the 3 long beeps if no RAM installed. If it's not even doing that, I think the problem may be deeper. As others have said, I think your motherboard is about to give up. However, try a CMOS reset. I have brought back many a "dead" mobo, at least temporarily, with that trick. Maybe do it 2 or 3 times if necessary. I revived a stuffed server by a BIOS flash on more than one occasion.
I only have beep experience with 1 machine, being an ancient intel 486DX2 machine from 1994. It would do a couple of long beeps if no ram installed (longer than the normal long beeps if I rember correct). The only case where it wouldn't beep was if no cpu was installed. (And of course a death mainboard.) Only 1 week ago though I experienced about the same with my deskop after doing it's yearly "clean-the-dust-out-time". The only difference was that my fans all went 100%. After half an hour I figured out that if I pressed the back of my grahics card a little deeper into the pcie slot it would turn on. Really weird, especially because when it started booting I could wiggle the card all around and torture the hell out of it, it wouldn't crash, no display artifacts. It just refuses to POST. WHen turning it off and on again it again refuses, but pushing the card for a second does the trick. So if you haven't tried it already, take everything out except cpu and ram and see what it does.
Did IBM MB's suffer the bulging capacitor issues? To the OP..... 1) Beg or borrow a compatible power supply- only connect to MB and CPU power sockets- do not connect HD/CD/Floppy, etc.. power leads 2) Remove everything from MB: SATA cables, add on cards, RAM, except for CPU 3) Remove CMOS battery and jumper CMOS reset pins- then replace back to normal position 4) Boot up by jumping "power on" pins with a metal object (paperclip/coin/screwdriver) If still no boot/beep/video- probably bad MB If it boots and or beeps with video- bad PSU FWIW- PSU's (Power Supply) go bad much more often than mother boards do.
Missed the "XP logo visible" part in the original post- I have a hard time reading broken English so I probably skipped passed that part. At any rate- I agree with you- the PSU is suspect #1. If it came in my shop for repair- I would probably just connect a bench PSU and go from there.
Take out the battery memory and cpu from the motherboard unplug any power cables connected to the motherboard take out any pci/graphics cards unplug the sata/ata and than connect the "power only" back to the motherboard and power on the machine you might not hear any sound yet, now don't press the power button just pull out the power cable from the outlet and then only put the cpu back in and power the computer you should hear sound now! "NOTE" DO NOT UNPLUG ANY FANS OR TOUCH ANY JUMPER SWITCHES ON THE MOTHERBOARD