Albert Posted December 22, 2003 Share Posted December 22, 2003 My machine is displaying a current CPU speed of 1250MHz when it should be 2083MHz I have an Athlon Barton XP2800 ASUS A7N8X Deluxe Bios Revision 1006 Corsair TWINX 1GB XMS 3200 C2Pro My current bios settings are: CPU External Freq 166MHz CPU Frequency Multiple Setting [Auto] x CPU Frequency Multiple 12.5x System Performance [Optimal] x CPU Interface Optimal Memory Frequency [Auto] Resulting Frequency Auto x Memory timeings Optimal x SDRAM Active Precharge delay 7 x SDRAM RAS to CAS delay 3 x SDRAM RAS Precharge delay 3 x SDRAM CAS latency 2T FSB Spread Spectrum [0.5%] AGP Spread Spectrum [Disabled] CPU Vcore Setting [Auto] x CPU Vcore 1.650V What am I doing wrong here to get 1250MHz out of my CPU?? Link to comment Share on other sites More sharing options...
Surnom Posted December 22, 2003 Share Posted December 22, 2003 Did you try loading BIOS default? Or if it fails reflashing your BIOS. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted December 22, 2003 Corsair Employee Share Posted December 22, 2003 Please try and load setup defaults and then set these settings. CPU External Freq 166MHz CPU Frequency Multiple Setting [Auto] x CPU Frequency Multiple 12.5x System Performance [Aggressive] x CPU Interface Optimal Memory Frequency:: 100% Resulting Frequency 166Mhz x Memory timeings Optimal x SDRAM Active Precharge delay 6 x SDRAM RAS to CAS delay 3 x SDRAM RAS Precharge delay 3 x SDRAM CAS latency 2T FSB Spread Spectrum [0.5%] AGP Spread Spectrum [Disabled] CPU Vcore Setting [Auto] x CPU Vcore 1.650V Link to comment Share on other sites More sharing options...
Albert Posted December 22, 2003 Author Share Posted December 22, 2003 When I set system performance to Aggressive it greys out the following: x CPU Interface Aggressive x Memory frequency 100% Resulting Frequency 166Mhz x Memory timings aggressive x SDRAM Precharge Delay 7 x SDRAM RAS to CAS delay 3 x SDRAM RAS Precharge 3 x SDRAM CAS latency 2T and x CPU Vcore 1.650V The System then still boots as a 1250MHz The only way to change the SDRAM Precharge Delay to 6 as suggested was to change system performance to User Defined . Something very strange though... I was looking at the FSB jumper to check that it was in the correct position and it seemed loose. I took it off after disconnecting the power of course and then put it back into place and reconnected the power. When I booted the CPU was displayed as 2800+ .. What the ???? I thought it was all fixed. Upon a restart of the PC it reverted back to 1250MHz. Now to get it to work as a 2083MHz I repeat the jumper bit and it works every time. The jumper selects between FSB400/333/266 which is default or FSB 200 it says the FSB400 support is for PCB2.0 or later versions only. Any ideas on why I have to do this with the jumper each time to get my system to perform correctly?:eek: :eek: :eek: Link to comment Share on other sites More sharing options...
Surnom Posted December 22, 2003 Share Posted December 22, 2003 Maybe the jumper doesnt make contact all the time, use another one just to try it. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted December 22, 2003 Corsair Employee Share Posted December 22, 2003 Sorry my mistake, Not system performance it should be CPU performance set to aggressive and system performance set to user define. Link to comment Share on other sites More sharing options...
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