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Flow
06-11-01, 04:55 AM
I was planning to overclock my AMD Duron 650 for the first time so I decided to do some preliminary experiments. Since my Mobo doen't support any of the regular overclock features (Vcore, multiplier) I took of the heatsink, closed the L1 bridges on the processor (with a pencil), reassembled everything and booted the system, just to be sure. No probs. After that I tried closing all the L7 bridges to raise the core voltage to the max. As soon as I booted the system I saw it ran at 1.92 V. And that's when I got carried away. I entered the BIOS and changed the FSB to 112 Mhz at once, because that was the limit without raising the voltage. I saved to CMOS and exit, but after this my trusted PC never woke up again. I mean when I power up the screen remains blank, the HD is spinning for a while, but basically that's it :(
Suggestions anyone? I don't even see what could have hit me this hard.
btw, the first thing I tried was to reset my CMOS, and repositioning the DIMM's, but without results.
Please help :(

---------------------------------------------
AMD Duron 650
Biostar M7VKb MoBo
384 Mb 133 SDRAM
Geforce 256 DDR (Creative)
SoundBlaster Live! 1024

Justy303
06-11-01, 05:56 AM
Unplug your PSU before you reset cmos, and leave it unplugged for a couple of hours and then try to restart it.

Flow
06-11-01, 07:37 AM
Ah, thanx!
I tried resetting the cmos with the PSU unpluged, but only for about ten seconds (5 sec. should do the job according to the board's manual) but I'll try it as soon as possible. Maybe i'll leave it overnight.
Thanks a lot! It just might work.

Justy303 (Jun 11, 2001 05:56 a.m.):
Unplug your PSU before you reset cmos, and leave it unplugged for a couple of hours and then try to restart it.

Justy303
06-11-01, 08:02 AM
If that doesn't help, you can also try to remove your cmos battery.

Justy303
06-11-01, 08:06 AM
...or erase your pencilmarks at the L1 bridge to set it back to default multiplier. This could make it a bit more 'bootable'.
Good luck!!

Flow
06-11-01, 09:32 AM
right, I forgot...
First the PC did almost nothing: blank screen, no beeps, no keyboard light, only spinning HD and burning system & CD-rom lights.
Later on I took out all dimm's and re-fitted them. After that it's still the same, but now it keeps beeping.
Switching video card doesn't do anything.
does this mean anything to someone?
thanks

rstarr
06-11-01, 10:16 AM
Can you tell us the "beep code" i.e. 1 short continous beep.
3 short, 1 long. Get the idea?

Also look in your manual for beep code errors.
Usually it has to do with memory or video.

Flow
06-11-01, 10:27 AM
One short beep, repeated continuously (2 or 3 seconds interval i guess)

There's nothing about beeps in my manual.

Oni
06-11-01, 01:14 PM
Flow (Jun 11, 2001 10:27 a.m.):
One short beep, repeated continuously (2 or 3 seconds interval i guess)

There's nothing about beeps in my manual.

Thats a ram beep. Your ram isn't seated right. Re-seat it and the beeping should go away. As for your processor not working . . . . It might be dead, but then again, it might just be the FSB too high. There's always hope! :)

oc jason
06-11-01, 01:44 PM
Try these way dont know why or how but all have worked for me at some point in time-Remove CMOS battery-unplugged or not for 15minutes. Clear CMOS with jumper. unplug the power connector from the mobo and remove the battery, put battery in first them plugin mobo , if it boots go into BIOS and set everything to default-save and then try again with the overclock

Flow
06-12-01, 02:08 AM
Oh yes! Thanks guy's!!!!
I was a ram beep after all. I found out that I blew up one of my 3 dimm's.
I finaly managed to clear the cmos by removing the batery for half an hour. And yes, it runs smooth as a baby's behind again (but with 64 Mb ram less).

but this brings me to the next, less urgent question:
I tried to clean the pencilmarks from the cpu but it keeps running at the max core voltage (1.92V in this case). I guess raising the multiplier is the only way to go now, since i'm stuck with this high vcore. (i'll raise a fsb never again) :)

thanks again!

Justy303
06-12-01, 05:39 AM
Sorry to hear about that lost stick of RAM :(