I've successfully unlocked my Athlon XP 1800+ and overclocked it to 1900+ (12x133MHz). The temperature is average 38-41. System is stable. Should I overclock it to 2000+ by changing the multiplier to 12.5x133MHz? BTW i am using the default voltage 1.75. Must i raise the voltage hogher if OC to 2000+? I've tried OC to 1900+ with setting the FSB to 138MHz with the default 11.5 multipier but the system sometimes automatically restart. Any idea or comments? Thanks! MSI KT3 Ultra 2MS-6380E Athlon XP 1800+ 12x133MHz DDR512 PC2700 2-2-2-6 Asus ATi Radeon 9200SE 128MB Windows XP SP2

I have my 1800+ Tbred overclocked to 1.7GHz...8.5 x 200MHz. FSB is where the performance is, simply increasing the CPU speed will gain you very little. The advantage to having an unlocked multi is so that you can lower it, then raise the FSB even higher, while still maintaining a "reasonable" CPU clock speed. If you don't have a way to increase the vcore, try lowering the multi to 9.5x & raising the FSB to 166Mhz to match your RAM. http://www.msicomputer.com/product/detail_spec/product_detail.asp?model=KT3_Ultra2 ASUS A7N8X-X Athlon XP 1800+ 8.5 x 200MHz 1024MB PC3200 2.5-3-3-7 Asus A9550GE/TD 128MB WinME/WinXP Pro SP1

I've tried to set at 8.5x200MHz but my pc wouldn't POST. I have to reset my CMOS. I this because of my RAM speed? Cause i heard that increasing FSB will eventually increase the ram speed and other pci or agp speed. MSI KT3 Ultra 2MS-6380E Athlon XP 1800+ 12x133MHz DDR512 PC2700 2-2-2-6 Asus ATi Radeon 9200SE 128MB Windows XP SP2

I told you to try 9.5 x 166Mhz...not 8.5 x 200MHz. I have Tbred, you have a Palomino. I have a decent motherboard, you do not. I had to increase my CPU voltage from 1.60v to 1.775v, you have no vcore adjustment. Just try it at 9.5 x 166MHz...if it runs stably at that setting, you're done....you've just turned your 1800+ AXP into a 2300+ Sempron...lol ASUS A7N8X-X Athlon XP 1800+ 8.5 x 200MHz 1024MB PC3200 2.5-3-3-7 Asus A9550GE/TD 128MB WinME/WinXP Pro SP1

i also have already tried 9.5x166MHz and my motherboard supports changing V-core voltage including RAM voltage and also AGP. But it cant POST after i save and exit CMOS setup. my processor is at default v-core voltage at 1.75. Does i need to change my RAM timing anything or let it be the default SPD? my ram is pc2700 but at the cmos setup, it stated the HCLK at 133. so i set the clock speed to HCLK+33. i this the problem? MSI KT3 Ultra 2MS-6380E Athlon XP 1800+ 12x133MHz DDR512 PC2700 2-2-2-6 Asus ATi Radeon 9200SE 128MB Windows XP SP2

For best performance on a socket A system, the CPU & RAM should run at the same bus speed. So even though you PC2700 is capable of 166MHz+, if your CPU is running at 133MHz, your RAM should run at 133MHz. HCLK = FSB, so keep your RAM setting on HCLK. If you had the FSB set at 166MHz & the RAM at HCLK+33, the board was trying to run the RAM at 200MHz...that's probably why your system wouldn't boot. Here's some suggestions for BIOS settings: SDRAM Freq = HCLK AGP Aperture Size = 128MB Spread Spectrum = disabled CPU FSB Clock = 166MHz CPU Ratio = 9.5 Apparently I looked at the wrong board earlier because I saw no vcore adjustment. You can safely add up to 0.10v if necessary...if the adjustments are in increments of 0.025v at a time, do it in steps, don't jump straight to it as it may not be necessary. Also, PC2700 RAM is usually stable up to about 185MHz...that is also the safe limit for raising the FSB without an AGP/PCI lock. Probably the best way to approach this would be to temporarily set the multiplier (CPU Ratio) extremely low, that way you can arrive at the max FSB that your RAM can handle. Try it at 8.0x with the FSB at 166MHz & the SDRAM at HCLK...then start raising the FSB 5MHz at a time...saving, rebooting, & testing the system after each change. Try to get to 185MHz. If you get to that point stably, go back & start raising the multiplier 0.5x at a time & try to find the max CPU speed at 185MHz FSB. I'm guessing you'll max out at about 9.0x or 9.5x...a voltage increase may be necessary to stabilize the overclock. http://www.msi.com.tw/program/support/download/dld/spt_dld_detail.php?UID=341&kind=1 ASUS A7N8X-X Athlon XP 1800+ 8.5 x 200MHz 1024MB PC3200 2.5-3-3-7 Asus A9550GE/TD 128MB WinME/WinXP Pro SP1

i think i have a problem in my unlocking previously. base on this site, http://www.overclockers.com/tips693/ it said that Palomino type will have a copper connection at the pit that the laser cut. so u cant juz connect the bridge by painting the point with a conductive paint, or else it wont be unlock completely. so i think that i am having problem with my unlocking cause i juz use conductive paint to connect the bridge thru the pit. maybe i should try redo the unlocking process again tomorow. MSI KT3 Ultra 2MS-6380E Athlon XP 1800+ 12x133MHz DDR512 PC2700 2-2-2-6 Asus ATi Radeon 9200SE 128MB Windows XP SP2