"It wont let me lower the CPU voltage"
I didn't tell you to lower it...I told you to raise (increase) it!
Try thes BIOS settings:
Go to ADVANCED CHIPSET FEATURES:
DRAM Configuration - Press ENTER to bring up the memory options:
Timing Mode = manual
Memclock index value (Mhz) = 166**
** try it at 166MHz with the CPU freq at 250MHz. After you'd made all the changes, save your settings & reboot, get right back into the BIOS again & look at the CELL MENU. See what is listed for "Current DDR Clock"...if it says 208MHz, you're good. If it says 166MHz, go back to "Memclock index value" & change it to 200MHz.
User Config mode = manual
1T/ 2T Memory Timing = 2T***
*** 2T is slower but more stable. Leave it set at 2T for the time being & focus on all the rest of the settings. Once you get everything running the way you want it, drop back to this setting & try it at 1T...but if your system becomes unstable, change it back to 2T.
Go to the CELL MENU:
High Performance Mode = manual
Aggressive timing = disabled
Dynamic Overclocking = disabled
Adjust CPU FSB Freq = 250
HT Freq = 3x
HT width = down 16 up 16
CPU Spread Spectrum = disabled
SATA Spread Spectrum = disabled
PCIE Spread Spectrum = disabled
PCIE Clock = 100MHz
Cool ’n’ Quiet = disabled
Adjust CPU Ratio = startup (or x8)
Adjust CPU VID = 1.40v****
**** default voltage for your CPU is 1.40v. Overclocking sometimes requires a voltage increase. Try it a 1.45v & see if that will allow you to boot with the overclock settings...if it doesn't, try it again at 1.50v. Try to find the lowest voltage that will allow the system to run stably. It may be 1.425v or 1.475v, possibly even 1.525v. You'll have to experiment. Keep an eye on your CPU temperature.
