Help!! P4B266 won't boot up after overclocking

jdf123

Junior Member
Jul 2, 2001
11
0
0
Asus P4B266 (1003 BIOS)
Intel Pentium IV 1.6A
Artic Silver 3
Alpha PAL8942 Heat Sink With Enermax 80MM Fan
Mushkin 512 DDR 2100 CAS 2-2-2 Memory
Sound Blaster Audiogy Platnium
Geforce 3 Ti 200 Visiontek Xtasy 6564
DLink 10/100 MBS Network Card
WD100BB Hard-drive
Plextor 16X10X40 CDRW
Creative 6X DVD
Enermax Whisper 300W

Ok, here is the problem. I just got the board, the memory, and the CPU a couple of days ago. I put them all together and they worked fine. I then tried my luck at overclocking, I let it run at 1840 MHZ (115 FSB 1.60V) over night to help burn it in. I tried at 2000MHZ and 2133MHZ but it was unstable even with 1.70V. I just figured that it needed to be burned in some before OCing it more. The next day I tried it at different speeds and different voltages until it just stopped booting. When I turn it on, everything gets the power (fans, hard-drive, and cdroms) but the screen just stays blank. I figured that it just was trying overclock unsuccessfully so I set the jumper and dip switches so it would use the default speed (16 multiplier at 100FSB). This didn't solve anything. I thought that maybe it might be the video card so I replaced it with my Geforce 2 card that know still works. No luck. I then replaced the Memory with my old crucial pc2100 DDR memroy. Still no luck. I then decided to take all of my PCI cards out, disable USB 2.0, disconnect all of the unneeded cables and devices (IDE, USB, uneeded fans, etc) and connect just the monitor and a ps2 keyboard. Still no luck. I took off my HS and took my processor and checked for any defects such as cracks, burn marks, etc (you never know). Satisfied that it looked good I put it back in and put the heatsink back on it. It still doesn't work. I get no beeps or messages, Just a blank screen. Twice I got a blinking cursor. I tried reseting the CMOS several times (taking the battery out and unplugging the system). I'm all out of ideas. Can someone please help. Do you think it's the processor, CPU, something else. I couldn't test the motherboard with another P4 because I don't own another one or know someone else that has a Socket 478 one. Thanks in advance for any help.
 

jdf123

Junior Member
Jul 2, 2001
11
0
0
Here's the latest. I am returning my 1.6a and purchasing a 2.0A. It should be here within a couple of days. I am really hoping it is the CPU and not the motherboard.
 

jiffylube1024

Diamond Member
Feb 17, 2002
7,430
0
71
The battery-unplug-replug doesn't seem to clear the CMOS properly, certainly not on ASUS boards. You have to do it the proper way; by shorting the CMOS jumper. In the manual it will tell you where there are two solder points on the motherboard that you can short using a paper clip or whatever you wish (as long as it's metal and electrically conductive). Hold the paper clip so that it connects the two solder points and then turn on the power button... it will boot for a second or two then reboot and clear the CMOS.

This *should* solve your problem.