Having problems with your Toshiba Satellite A135 Notebook ?

PC won't boot after changed BIOS memory settings

\015 Let me first say that my pc's a victim of my own curiosity. I wish I could go back and give myself a big dopeslap BEFORE I decided to manually adjust the memory timings. I've been doing ''this'' for 20 yrs now and should know better. I figured I could just reset the cmos with a jumper if it didn't like the new settings. But as you can guess i've tried that and i've still got a dead pc. Ok i'll try to retrace my steps and give as much detail as I can.\015\012\015\012The system came with 512 MB PC2-4200 memory that I upgraded to the system max 2 GB of PC2-5300 a few months ago and it had been working fine since. After changing the timing settings in the BIOS and rebooting, my display stayed blank. The orange sleep mode lite was flashing but I didn't even hear the BIOS beep tones at that point. Everything I found online said to disconnect the battery for 10 seconds to reset the CMOS on emachines. I unplugged the power cord, removed the battery, waited, replaced battery, reconnected power cord. Now when I pressed the power button I got the BIOS beep code - 3 beeps. I'm pretty sure it's an AMI BIOS and the 3 beeps is a problem with base memory. Thinking I may have fried one or both of my DIMM's, I tried each 1 GB DIMM by itself but no change. Then I removed them both and reinstalled the original 512 MB DIMM that I still had. Still no change - just 3 beeps. In the process of doing all this I found the CMOS motherboard jumper. I couldn't imagine how using the jumper would reset any CMOS settings that removing the battery wouldn't, but I was out of ideas. So I unplugged the power, moved the jumper over, returned it, plugged it back in. No luck. I tried shorting it again with the power cord connected. Probably not a good idea but at this point I figured I couldn't make it any worse. Well, I may have made it worse. Throughout all of this when I turned the power on, the CPU fan came on full speed. After shorting the jumper this time the fan would still come on but much slower. It was still dead with the same beep code. I unplugged it again, reset the CMOS, and at least the fan is back to normal but the PC's still dead. I'm out of ideas.\015

Answers :

With all that you've done, you might have worsened your PC mobo's condition. Now try to remove the processor and memory then PLUG it normally to the power outlet and see if the led in the mobo lights. After 3 minutes, unplug it and reseat the rams and processor. Now, turn the PC on!
It is GOOD that the CPU-fan starts at 100% speed, then the motherboard checks the CPU-temperature, and slows-down the fan because the temperature is "low".
\015\012
\015\012Change the video-card.
\015\012
\015\012If there is a built-in video-card, connect a monitor to it, to see if the POST (power on self test) output is getting routed to that port.
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