I picked up a Tualatin 1.0a celeron at newegg for $70 to run in my old cusl2-c motherboard. The board does not support the Tualatin so I had to modify the pins on the CPU. I insulated the 3 pins (DYN_DE, RESET 2 and VTTPWRGD) with the gray insulation from an old floppy drive cable. Then I connected the VTTPWRGD TO PWRGD with a thin wire. I had to enlarge the 3 holes in the 370Zif socket to accept the larger pins with insulation on them. This was easy to do with a small drill bit after removing the top of the 370Zif socket. Next I reassembled the 370zif socket and inserted the cpu, reset the bios and started the system up.
To my surprise it booted and was detected as a Pentium 2 1000 MHz! I got into the bios and bumped up the fsb to 150mhz and rebooted. Bam! Pentium 2 @ 1500mhz! Cool I was about to hook up my hard drive and see if it would boot into windows when I decided to check the voltage. It read 2.3V Holy Crap! I shut down the system and decided to do the voltage wire trick to get 1.65v and solve the voltage problem. I wrapped the wire in place and reinserted the cpu Hit the power button and no post! What the heck? I pulled the cpu to check my work and it looked fine. I noticed the pins I had insulated with the floppy cable where slightly bent from not having enough room to slide with the socket 370 when locking down the cpu. I went to go bend the pins back. I touched the DYN_DE pin and it was broken off from the socket 370! Game over the cpu won?t post with out this pin.
So the moral of the story is if you want to do this mod don?t use wire insulation on the pins. Paint them or find another way because this is too much stress on them.
To my surprise it booted and was detected as a Pentium 2 1000 MHz! I got into the bios and bumped up the fsb to 150mhz and rebooted. Bam! Pentium 2 @ 1500mhz! Cool I was about to hook up my hard drive and see if it would boot into windows when I decided to check the voltage. It read 2.3V Holy Crap! I shut down the system and decided to do the voltage wire trick to get 1.65v and solve the voltage problem. I wrapped the wire in place and reinserted the cpu Hit the power button and no post! What the heck? I pulled the cpu to check my work and it looked fine. I noticed the pins I had insulated with the floppy cable where slightly bent from not having enough room to slide with the socket 370 when locking down the cpu. I went to go bend the pins back. I touched the DYN_DE pin and it was broken off from the socket 370! Game over the cpu won?t post with out this pin.
So the moral of the story is if you want to do this mod don?t use wire insulation on the pins. Paint them or find another way because this is too much stress on them.
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