ok the boys in hardware are giving me a hard time. Maybe the overclockers can help. I currently have a 1.7 AMD Palamino core. I set the jumpers on the Shuttle AK38N to the 166mhz (pin2-4) DRAM FSB FREQUENCY 166MHZ CURRENT DRAM FREQUENCY 166MHZ DRAM CLOCK 166MHZ DRAM TIMING [AUTO BY SPD] DRAM BUST LENGTH [4] DRAM QUE DEPTH [4 LEVEL] DRAM COMMAND RAT [IT COMMAND] WRITE RECOVERY TIME [37] DRAM TWTR [37] When I run SI Sandra I get an overclocked value of 1.83 with a 11/1x multiplior. I have two 512MB PC2700 DDR in slots one and three. Inserting ram in slot two cause the system to become unstable and wont open Windows. Here is my question. I want to install a new AMD 2400+ tbred. Can I simply install the new CPU and leave everything else alone ?

What do you mean "leave everything alone", if you mean the jumpers, no, you will have to initially set everything according to the CPU, ie. Multi of 15, FSB 133 and voltage 1.65.

Thanks in advance for being patient with me. I really do want to understand overclocking and I'm not going to do anything til I do. When I initially set everything your telling me I need to move my jumper on the mother board to the 133mhz setting? Everyone keeps talking about multipliors. My board has DRAM Timing settings as follows MANUAL AUTOBY SPD TURBO ULTRA Are these the same as multipliors ?

JUST CHECKED THE SPECS ON THE SHUTTLE AK38N. THE OVERCLOCKING,VOLTAGE,FSB,MULTIPLIOR ARE NOT AVAILABLE. http://us.shuttle.com/compare2.asp I'M STILL CONCERNED WHAT WILL HAPPEN TO THE 2400+ WITH MY 166MHZ SETTING.

XP 2400+ stock multis are 15, so if you set your FSB to 166, you will get a resulting frequency of 2490MHz, I doubt you will be able to go that high, does your mobo allow gradual FSB increases, check in the BIOS. If that is the case, slowly increase your FSB, 1-3MHz at a time.

yes it does have frequency control in 1mhz increments. How does that relate to the DRMAM control ? Mine has MANUAL,AUTOBYSPD,TURBO,ULTRA. I currently use AUTOBYSPD.

Multipliers have nothing to do with memory timing...it does just what the name implies, it multiplies! It's used to setup your board for your particular CPU speed. Mutiplier x FSB = CPU speed This was explained to you in the hardware forum. The 2400+ is designed to run at 1.93Ghz with a FSB of 133mhz...14.5 x 133FSB = 1.93Ghz...therefore, your default multiplier setting is 14.5. (I've also seen it listed as 2.0Ghz = 15 x 133). If you set the FSB to 166, the BIOS will try to run your CPU at 2.4Ghz (14.5 x 166)... "AutoBySPD" is probably the safest way to go. SPD stands for Serial Presence Detect....basically, it refers to a small chip on your memory module called an EEPROM that contains the info about your module. When set to "AUTO", the BIOS reads the info from the EEPROM & configures the memory settings according to that info. "Manual" obviously refers to the user configuring these settings manually. "Turbo" & "Ultra" are high performance settings...your memory may or may not work with these settings, it would depend upon it's quality.