"mysterious shutdown"???

dansilva · 12-02-2004, 09:56 AM

twice in the same day i have experienced automatic shutdown on my computer. absolutely no warning signs or whatevers comes on screen its just shutdown completely. i did a full visrus scan as well as a spyware scan results are negative so lets rule that out. my computer has been ON since 10th of Aug till this present day, with occasional reboots. could it be a cpu is over heated and resulted in a shutdown if so why didnt it happen before?why now twice in the same day? could it be a faulty with my power supply (Antec true power 550W) i really dont know whats happening here so please if someone help me to solve the mystary?

thank you

Scrat · 12-02-2004, 10:02 AM

What O/S are you running?

Does the O/S shut itself down first or does the whole PC just "loose power".
Does the monitor power/status light stay on... what colour is it?

------------------------
Ephesian 5:18 - Mmm... scotch

dansilva · 12-02-2004, 10:18 AM

the whole PC "loose power" and as for monitor its blank coz no singal input.

smitherz · 12-02-2004, 10:20 AM

right so the PC does not shut down, it looses power. again what O/S are you running on? is there any type of blue screen? is there any type of message before it looses power?

dansilva · 12-02-2004, 10:27 AM

i am running XP Pro oem edition as i mention earlier there is no warning sign what-so-ever....no blue screen either. computer just shutdown until i have to swtich it ON to run again.

Scrat · 12-02-2004, 10:28 AM

What was the ambiant temp in the room the day this happened?
Is you PC's internal speaker plugged in?
Are warnings enabled in your BIOS?
Is your monitor powered directly from the wall or from the PC's PSU? Try powering it from the PC's PSU and next time the fault occurs check if there is still anypower going to the monitor(is the monitor's stand-by light lit).
Does the Fan in the PSU work, and was it still going when the PC lost power?

If you've got a couple of spare dollars i'd suggest buying a new PSU as they are relitivly cheap and could fix the problem.. or at least tell you what isn't causing it

smitherz · 12-02-2004, 10:30 AM

hmmm........ have you added any new hardware recently?

dansilva · 12-02-2004, 10:42 AM

Quote:

hmmm........ have you added any new hardware recently?

no i havent add any new hardware recently.

Quote:

What was the ambiant temp in the room the day this happened?

i live in UK (London) its winter time here and its bitterly cold and i had heaters swtiched off so i would say the tem in my room was about 15C.

Quote:

Is you PC's internal speaker plugged in?

yeah i have 5.1 surround sounds running but that has been there for more than a year.

Quote:

Are warnings enabled in your BIOS?

yes they are enabled

Quote:

Is your monitor powered directly from the wall or from the PC's PSU?

my monitor is powered by a different socket point in the house as it has been for over a year now
everything was working fine nice and smooth as far as i can say, externally then KABLAMOOO!!! computer shutdown

smitherz · 12-02-2004, 10:52 AM

It sounds like it is your PSU, you could use a multi-metre to test if there is any voltage coming through when the power cuts off. Well i think that is going to be the most likely cause but could be something else

dansilva · 12-02-2004, 11:00 AM

i have 550W Antec True Power and i had it for less than a year. already its faulty?

Quote:

you could use a multi-metre to test if there is any voltage coming through when the power cuts off

hey could u be more specific please and how do i run multi-meter test.

12-02-2004, 09:56 AM	#1 (permalink)
dansilva Gold Member Join Date: Oct 2004 Location: London UK Posts: 442	"mysterious shutdown"??? twice in the same day i have experienced automatic shutdown on my computer. absolutely no warning signs or whatevers comes on screen its just shutdown completely. i did a full visrus scan as well as a spyware scan results are negative so lets rule that out. my computer has been ON since 10th of Aug till this present day, with occasional reboots. could it be a cpu is over heated and resulted in a shutdown if so why didnt it happen before?why now twice in the same day? could it be a faulty with my power supply (Antec true power 550W) i really dont know whats happening here so please if someone help me to solve the mystary? thank you __________________ DAN 3:16

12-02-2004, 10:02 AM	#2 (permalink)
Scrat Platinum Member Join Date: Aug 2004 Location: Sydney, Australia Age: 27 Posts: 630	What O/S are you running? Does the O/S shut itself down first or does the whole PC just "loose power". Does the monitor power/status light stay on... what colour is it? ------------------------ Ephesian 5:18 - Mmm... scotch __________________ AMD Athlon 64 3500+, GigaByte GA-K8NS Ultra-939 Ltd Ed. ATI Radeon GeCube 256Mb 9600XT, Compro DVB-T300 Dig/Analog TV Card 2x 1GB, 2x 512Mb DDR CL3 400Mhz PC3200 - Dual Channel WD 120Gb SATA 7200rpm 8MB, WD 80Gb SATA 7200rpm 8MB Excel 108Mb Wireless PCI, WinXP Prof. Samsung CD-R/RW 52-32-52, Samsung DVD 16x reader, LG DVD MultiBurner Benq 17" FP71E 12ms LCD, Logitech LX700 K&M, Logitech G25 Racing Wheel, Logitech Z-5400 FOLDING FOR THE GOOD OF MANKIND!! Team 44358

12-02-2004, 10:18 AM	#3 (permalink)
dansilva Gold Member Join Date: Oct 2004 Location: London UK Posts: 442	the whole PC "loose power" and as for monitor its blank coz no singal input. __________________ DAN 3:16

12-02-2004, 10:20 AM	#4 (permalink)
smitherz Silver Member Join Date: Oct 2004 Location: Plymouth Age: 21 Posts: 147	right so the PC does not shut down, it looses power. again what O/S are you running on? is there any type of blue screen? is there any type of message before it looses power? __________________ AMD Athlon 64 3500 Newcastle Socket 939Pin Asus A8V Rev.2 Deluxe (Socket 939) GeIL 1GB (2x512MB) PC3200 Western Digital WD1200JD 120GB LG GMA 4020B DVD/RW ASUS V9999GE/TD/256MB GF 6800+256MB AGP8X

12-02-2004, 10:27 AM	#5 (permalink)
dansilva Gold Member Join Date: Oct 2004 Location: London UK Posts: 442	i am running XP Pro oem edition as i mention earlier there is no warning sign what-so-ever....no blue screen either. computer just shutdown until i have to swtich it ON to run again. __________________ DAN 3:16

12-02-2004, 10:28 AM	#6 (permalink)
Scrat Platinum Member Join Date: Aug 2004 Location: Sydney, Australia Age: 27 Posts: 630	What was the ambiant temp in the room the day this happened? Is you PC's internal speaker plugged in? Are warnings enabled in your BIOS? Is your monitor powered directly from the wall or from the PC's PSU? Try powering it from the PC's PSU and next time the fault occurs check if there is still anypower going to the monitor(is the monitor's stand-by light lit). Does the Fan in the PSU work, and was it still going when the PC lost power? If you've got a couple of spare dollars i'd suggest buying a new PSU as they are relitivly cheap and could fix the problem.. or at least tell you what isn't causing it __________________ AMD Athlon 64 3500+, GigaByte GA-K8NS Ultra-939 Ltd Ed. ATI Radeon GeCube 256Mb 9600XT, Compro DVB-T300 Dig/Analog TV Card 2x 1GB, 2x 512Mb DDR CL3 400Mhz PC3200 - Dual Channel WD 120Gb SATA 7200rpm 8MB, WD 80Gb SATA 7200rpm 8MB Excel 108Mb Wireless PCI, WinXP Prof. Samsung CD-R/RW 52-32-52, Samsung DVD 16x reader, LG DVD MultiBurner Benq 17" FP71E 12ms LCD, Logitech LX700 K&M, Logitech G25 Racing Wheel, Logitech Z-5400 FOLDING FOR THE GOOD OF MANKIND!! Team 44358

12-02-2004, 10:30 AM	#7 (permalink)
smitherz Silver Member Join Date: Oct 2004 Location: Plymouth Age: 21 Posts: 147	hmmm........ have you added any new hardware recently? __________________ AMD Athlon 64 3500 Newcastle Socket 939Pin Asus A8V Rev.2 Deluxe (Socket 939) GeIL 1GB (2x512MB) PC3200 Western Digital WD1200JD 120GB LG GMA 4020B DVD/RW ASUS V9999GE/TD/256MB GF 6800+256MB AGP8X

12-02-2004, 10:52 AM	#9 (permalink)
smitherz Silver Member Join Date: Oct 2004 Location: Plymouth Age: 21 Posts: 147	It sounds like it is your PSU, you could use a multi-metre to test if there is any voltage coming through when the power cuts off. Well i think that is going to be the most likely cause but could be something else __________________ AMD Athlon 64 3500 Newcastle Socket 939Pin Asus A8V Rev.2 Deluxe (Socket 939) GeIL 1GB (2x512MB) PC3200 Western Digital WD1200JD 120GB LG GMA 4020B DVD/RW ASUS V9999GE/TD/256MB GF 6800+256MB AGP8X

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