and the cdrom drive will not open, but this could be a different can of worms.
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computer stays on for 5 seconds.
Just build a computer and the first time i turned it on, it shut down after about 2 minutes. Now it only stays on for a few seconds. Actually, the monitor tuns off, but the power lights on the front of the case stay on. Also, the computer doesn't respond when I try to turn the power off -- i have flip the switch in the back of the computer. Any suggestions?
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Answers
Sounds like the power supply has a problem. You need to recheck your set up. Make sure the motherboard is not grounding out to the case, (stand offs in wrong location). Check all your settings and that the heatsink is mounted on the cpu correctly. Set up the computer with just the power supply, mother board, cpu, ram and video card. Try different ram and video card if computer will not boot to bios. Test your memory with a floppy loaded with http://www.memtest86.com/.
Good Luck, Jerry
Sometimes a brass standoff will end up in the wrong hole in the case and short out the motherboard not the number of standoffs used. Did you try to set it up with just the motherboard, power supply, cpu and memory? Don't connect any drives at this time, you should hear more than one beep when bios is looking for the video card. Now shut down and add video card. Add one thing at a time shutting down each time till you find the problem that is stopping boot. What brand is the power supply not all power supplies are created equal.
http://www4.tomshardware.c
http://www4.tomshardware.c
Sounds like a cpu fan problem alright; the newer cpu fans have one additional
wire on them. The purpose of the third wire is to verify fan rotation (those utilities
which report cpu fan speed use the information carried on this wire). The bios looks
at the information coming too, and if it doesn't see fan rotation, the system will turn off
at some point during the post (power on self test) routine. In addition, many of the
newer mobos have multiple receptacles for the fan plugs, if you are using a single
cpu cooling fan, it must plugged into the correct one....read the instructions that came
with your mobo, look at the pictures :)
good luck
OK so, look in your BIOS when you get your box started, there is probably a place to look at the temperatures and fan speeds of the the cpu, cpu cooling fan, etc.
There is also probably a place to set the warning/shutdown parameters in the BIOS also.
Look at the values, then look at the settings, adjust them as necessary.
Also, try Not plugging the computer into the surge protector, but directly into the wall, see what happins.
If still no luck, turn off the computer, unplug it, reseat all of the devices (memory, pci cards, cables, etc) and try again.
If still no luck, turn off the computer, unplug it, reset the bios (look in manual for instruction) and try again.
If still no luck, contact azus.
Good luck.
My system developed the same problem but it was after some time and a HD upgrade. The problem seems to be the load on the standby 5 volt supply. Try replacing the power supply by check the specs to find one with more SB 5v capability. This output iswhat controls the power up circuits as well as the rest of the internals of the power supply. When the system is trying to come up, its load increases and the rest of the supply senses a problem and shuts down. The swap fixed a number of odd flakey problems as well. Price seems to be unimportant as the one I bought was on sale for $10. If you just bought the thing, try to return the supply and swap for a bigger one.
I seriously doubt there could be enough heating to cause a shutdown in that short of a time. Pull everything off the supplies except the MB and power it up. If it works, then one by one add the drives. I still figure it is the power supply standby 5 volts. When this supply trips, the power switch on the back must be cycled to get it back again. What is the power rating for your power supply and specifically the 5Vsb current rating?
the cpu is causing the problem. When I pulled it off, the thing would not shut down. I added the video card and memory, left the cpu off, and it ran fine.
Do you think it is a bad chip or not cooling properly. to rmind you, when I go into Bios when the chip is attached, and toggle over to boot, everything freezes.
Thanks for helping me out.
As fciii and kiranghag pointed above, you might have overheat problem, so in my opinion first you should check your cpu fan.
Check fans installation perhaps you install it upside down.
Try another fan to see what happens.
For test only purpose and for a short time period, you can disable cpu overheat protection option in your bios settings.
It is possible to put the heatsink on backwards, as has been said that the heatsink is on wrong. Check to make sure the heatsink is rated for your Athlon 2 ghz proccessor. Even if the heatsink is underrated, if it is properly mounted it will not shut down for several minutes and you would notice higher temps. Here is a good place to start to look for a new heatsink & fan if you do need one.
http://www.newegg.com/app/
Good Luck,
Jerry
There is a possibility that the CPU is getting too high of a voltage. Many MB have jumpers to set the CPU core voltage. Either the jumpers are wrong or the MB supplies for the CPU are defective. Other possibilites are a defective power supply that can't supply the load, a fried CPU or all of the above. Check the CPU configuration!. If it is wrong, the CPU may be fried but maybe not.
It is on correcly and plugged in correctly -- I'm sure. But, there is a fraction of the cpu that is showing, that is not covered by the heatsink -- just a hair. Is this an improper heatsink and fan? If it is, would it make that much a dif. to make it shut down that quickly?
Could it be a bad mobo? Here are the other symptoms:
When I'm in bios and have enough time to shift over to "boot," there are no devices listed, and the thing freezes. Also, my cd player does not work when connected to the mobo, but it works fine when it is disconnected and just powered up (in other words, the tray will open and close, and read a cd, but not when it is connected to the mobo).
This is weird, and very, very frusterating.
"It is on correcly and plugged in correctly -- I'm sure. But, there is a fraction of the cpu that is showing, that is not covered by the heatsink -- just a hair. Is this an improper heatsink and fan? If it is, would it make that much a dif. to make it shut down that quickly?"
As long as the heatsink is mated well with the top of the cpu and you have used a good heat transfer compound the heat issue at boot should not be the problem. If the heatsink is to small the cpu will just get to hot after running for sometime, length of time depends on how underrated heatsink is.
How about a flow chart just for laughs if nothing else!!!
http://www.fonerbooks.com/
Jerry
I'm glad it is working now for you, but there must have been more problems with the first heatsink than size. Shuting down in that short of a time just does not make sense if heat sink matched up with top of cpu and a thermal pad or grease was used. Maybe the fan had a problem with reporting rpm to the motherboard bios will stop if it does not see rpm from the cpu fan on some motherboards.
Jerry
Well, it still gets up there in temp. I have to keep the side of the case off. Normally its in the mid 50s, bu tiwth the case on it got up to 90 celsius. This is not normall -- I don't believe. I guess I need another case fan.
Also, I used the old hard drive plus a new one. My old HD has WIN98, and I set it as the primary. Bios recognizes all the drives, but Win does not, which is a problem because I can't install from the cdrom. There are no drive letters for the cdrom or new drive. How can I work around this?
Thanks -- what a process. A definate learning experience for me.
for the temperature see these links
http://www.cybercpu.net/ho
http://www.amd.com/us-en/a
http://www.heatsink-guide.
90c is too hight try to fix it.
I can assume that the new disk does not have anything on it.
If this is the case you need to run fdisk and to format it.
For the cdrom you can check it, by running from command prompt the mscdex command ( http://www.computerhope.co
Ok. took out my old hard drive that had windows on it, reformatted the new one. And it seemed to setup fine, but then it froze when it whent through the reboot routine. Now it freezes every minute or so when trying to complete the installation. This is WIN 98 by the way because I was having too much probs with XP, so I figured I would install 98 then upgrade.
Did you check the cpu temperature?
If you have temperature problem you should fix it and then try to reinstall windows.
If you do not have temperature problem you should check memory chips (ex. http://www.memtest86.com/ ).
Finally if you still have problem perhaps you have to try another cpu (cpus usually have 10-15 days guaranty).
Wish you Luck!
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by: dombrorjPosted on 2003-09-13 at 14:51:02ID: 9354423
Unplugged everything but the HD & floppy drive. It boots to Bios, and will stay on for a minute or two after I unplug the computer crom the surge protector and pug it back in. The computer will shut down after a couple of minutes, or when I exit Bios. The power light on the front of the case, as well as on the mobo stay on, but the fans shut off, and nothing else works.