Upon pressing power button, led constantly beeps. never gets to cdrom, hd, or floppy. monitor doesn't respond. has just been reassembled, re-installed 2 memory sticks ( 256Mb each), cleaned entire system. fan on pwr supply works. fan on motherboard has not kicked in. everything is onboard. this system has no nics. the only card in a slot is a modem. help? i think the problem lies in the motherboard, bios or the pwr supply.
I found a great solution - I bought a new computer from pc world an advent with 3gbyte memory and
insurance to keep it running okay. I had tried two repair men who handed it back as repaired but the
same fault came back within 2 days. I gave up - so thanks for all your replies.
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At boot up, after the POST, each time the HDD led blinks, the laptop produces a loud "beep", and refuses to boot, as if this phenomenon prevented the HDD to be read.
If I press the power button, it stops beeping. When I release it, it starts beeping again.
If I press F8 at the beginning and then ask for a normal boot, It boots normally. Anyway, in windows, I have some strange activity, like I would continually pressing Alt+Tab. If I press Esc, it stops immediately and then all seems to work fine.
Is there any message that appears when you turn the computer on? Does anything post to the monitor during the boot process? Normally if the Video Card goes bad and the monitor works you will get a No Signal message on the Monitor. So you are so sure the monitor works, huh?
Since you went inside the computer check and make sure you pushed the Video Card (where the monitor plugs into the back of the computer) into the slot all the way.
Maybe your Power Supply is not working. When you press the power button do the fans start running and you hear the disk drive spinning? Just because you see a light at the the power button or on the motherboard does not mean the Power Supply is working correctly. I just changed one that did that.
Remove the Power Cord, Open the Case and remove one of thememory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x onit with an ink pen. If it fails to boot then move the chip to the nextmemory slot and try rebooting. If it fails take the chip out and set itaside, then put the other chip in and try booting it in both slots. If itboots, just to verify that the chip set aside is bad, mark an x on it and putit into the open memory chip slot and try booting.You didn't by chance remove the Heat Sink and CPU while you were removing the fan did you? If you did, you probably need to apply a fresh coat of Thermal Past between the Heat Sink and CPU.
this can be caused by a number of issues the leading being RAM (no post beeps at all). before you do anything else pull all existing RAM and install a KNOWN GOOD STICK in their place and try again.if that doesn't work try resetting the mb (see the owner manual on how to do that) bios settings to defaults (this generally selects onboard video). if you have an installed video card within the system also remove that (even though you aren't using it). is that memory compatible you have there with the board? if its too slow the stick may be fine but mb may not "think" so. do you have keyboard "flash"? is the hard drive indicator constantly lit? how about cdrom drives and/or floppies? can you eject same? all this points to incompatible or "bad" memory as the main culprit.
There are a few things that can cause no display on the monitor. That single beep means POST = Power On Self Test. Post has tested everything on you're board to be good. The cable between video card & monitor may be bad or not connected correctly (Swap out the cable as last resort). 2. You're monitor is defective, try swapping it with known working monitor. 3. You're video card is not functioning. Lastly, when you reset the system cmos/bios everything went back to default. This means you're bios is now using the onboard PCI video graphics. Remove you're radeon 9600 video card. Try booting the system. You should see display again. The only way to test you're radeon would be to boot to the bios & set bios to boot using the AGP radeon. You need to change Init Display First to AGP & not PCI. If you loose video than you know you're AGP card is bad. Reset the cmos/bios before adding another AGP card or you will not get display. This setting is on pg 3-5. Integrated Peripherals. If you need you're manual you can download it from this link: http://www.abit.com.tw/page/en/motherboard/motherboard_detail.php?pMODEL_NAME=NF7-S2G&fMTYPE=Socket+A
Thats a link to info about bios updates on the tosh website. If you're not getting to the toshiba screen then POST has not completed which means that either there's a hardware problem or the bios is corupt. If you're sure the RAM is ok try flashing the Bios.
Problem is though, to make the bios update disc, you need a working computer.
and, err, It'll probably have to be a toshiba! (sorry, not my fault!)
Enter BIOS, at start up press Delete key every couple of seconds. PC vary, some require pressing the F1 key or F2 and others reqire F10. Once in the BIOS you'll need change your boot order. Again PC's BIOS's vary. Usually Floppy is first, CDROM second and Hd 3'rd. Save Bios and restart. If you boot media is a floppy disk your PC will go there 1'st, than to the CDROM. If boot media still is not seen. Check connectors to the floppy and or CD make sure cables and power connectors are tight.