K7 Delta 2 Nforce2 boot problem after ram upgrade

Question

Ill start out with the stats of the system
Delta 2 w/ DDR-400 Ultra support
Althlon XP 2100+ 266fsb cpu
512 Mb Mushkin High Perf Level II 2-2-2 Ram
80 GB IBM Deskstar HD 7200RPM
30 GB Maxtor HD 7200RPM
Radeon 9700 Pro
SB Live 5.1 Soundcard
Standard 400W power supply, all voltages were normal
So here is the issue, this system was running perfectly until i purchased two more sticks of mushkin ram, 2x256 mb ram sticks of Hi Perf Level II 2-2-2 ram, i placed this in the dual channled slots.  Machine then restarted and i got into BIOS where i set the clock to 166 to obtain my 333 fsb for the RAM, and selected the high performance timings.  This is when disaster happened, upon saving to cmos, nothing will work now, no bios screen, no beep errors, just the two green lights on bottom, and red lights on top of the MSI s bracket.  I have swapped out the ram, and cleared the CMOS, same thing, im all out of ideas, im going to try swapping the CPUs, but how could there be anything wrong with the CPU, i know all this stuff worked on the system.  Any Ideas?
-RastassJr

Answer 1

First Refer to your manual to make sure I have this right as I am going from memory.
As Wonkonoby suggests, the J10 jumper can be set to safe mode 100mhz for the CPU FSB.
Then remove the jumper block from J11, this will set the CPU Frequency to 100mhz.
These settings will usually help in recovering from bad settings in the BIOS or an overclock gone awry.
You may have to Clear the CMOS with JBAT1 Jumper, but please make sure you DO NOT start your PC with the JBAT1 jumper in the clear CMOS postition! You will probably bork your motherboard!
To clarify:
Please unplug the power supply from the power outlet or remove the power plug from the back of the unit.
Then, press the power button to purge any remaining power that is in the capacitors in the power supply. (sometimes you will notice the fans spin for a millisecond when you do this)
Set Jumpers J10 & 11 as described.
Clear CMOS by moving the JBAT1 Jumper to the "CLEAR" CMOS position for a few minutes. (it's often recommended to remove the battery after moving the jumper to the "CLEAR" position and waiting a few minutes befor replacing it and then replacing the battery and moving the Jumper back to the "KEEP" position)
Thats it, you should be able to start your PC and enter the BIOS. Make sure you set the jumpers J10 and J11 back to where they were and then enter all your BIOS settings again but this time be careful about timings.
If that does not work then you have a more serious problem.