Name: Pavesa Date: April 22, 2007 at 06:49:09 Pacific Subject: Overclock won't POST OS: WinXP Pro CPU/Ram: Athlon XP 2600/1 Gb Model/Manufacturer: Self-Made
Comment:
Hi,
I'm trying to overclock my son's Athlon XP 2600 by increasing the bus speed from 166 MHz. It is on an Abit NF7-S Rev 2 board with some Elixir memory which I know is happy running at 230 MHz. Even if I increase the bus to 167 it saves the settings but then won't POST. Can anyone give me any pointers to the problem?
If your 2600+ is t-bred core, then it should be core clock speed of 2133Mhz = 133Mhz x 16. By increasing the FSB to 166Mhz x 16 you get ~2666Mhz. Unless you push the cpu vcore to 2.0v+ and have high-end prometia or vapochill, you won't be able to reach that speed... If you are trying to improve overall system performance, then I suggest you drop the multiplier down to 11x and run it at 200Mhz FSB (1:1 with DDR400) to get 2200Mhz which your t-bred should do without any problems...
TMP-Man
Asus P5P800 PAT P4 506 @ 4009Mhz 1.3v Thermaltake CLP0024 w/ 1700RPM 92MM + AS5 2GB OCZ 2-3-2-5 DDR400 120GB/300GB 7200RPM HD Leadtek 7600 AGP 590/1600 VF700 ALCU AS5
The multiplier is probably locked. What exactly have you tried so far? There are numerous settings that have to be changed, not just the FSB. For instance...the AGP should be locked at 66MHz, the CPU/DRAM should be set to AUTO, AGP Aperture should be set to 128MB, all Spread Spectrum settings should be disabled, CPU voltage should be increased, RAM timings should be tweaked, etc.
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