Author Topic: AMD Athlon 3000+  (Read 854 times)

Offline richard_rd

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AMD Athlon 3000+
« Reply #15 on: August 24, 2006, 10:54:58 AM »
Your ram is causing the problems, but leave the timings alone (default).

  Instead just set a RAM divider on your MOBO bios.  Currently your Bios is probably set at DDR400 for the RAM speed.  Reduce that to DDR333 and then you can increase your FSB higher and the ram will still be around 200Mhz (DDR400).  


   The pblm you are having now is that as you increase your FSB above 200 your RAM is going above 200Mhz (DDR400) and this is causing boot pblms.

  Try these settings:

CPU MUltiplier:  Leave at 9 (Only FX AMD 64 chips are unlocked upwards)
FSB: change from 200 to 250Mhz
LDT: change from 5x to 4x (to keep HT under 1000Mhz, 250FSB x 4 = 1000)
Ram Speed: change from DDR400 to DDR333

The above changes will have your PC running at:

CPU = 2.25Ghz  (which is faster then a A64 3500+ 2.2Ghz)

Memory will be running at 204Mhz with the DDR333 Ram Divider.  If you wer to increase the FSB to 250 and left the mem speed at DDR400 then your mem would be running at 250Mhz (DDR500) which is out of spec for it and why your PC is not booting.
« Last Edit: August 24, 2006, 10:59:14 AM by richard_rd »

Offline 38ruk

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AMD Athlon 3000+
« Reply #16 on: August 24, 2006, 09:54:26 PM »
most of the time loosening the ram timmings, but keeping the ram running 1 to 1 is going to help you see a bigger overall performance increase . I find that its better to see what kind of speed the ram is capable with looser timmings than to automatically jump to a memory divder . Some of the decent ram will run a 250 fsb if you back off the timmings to CL3 , and there are some game benches on the net that will show you how much more of an improvement running loose VS running a divder , the extra memory bandwith more than makes up for the timmings .Now im not against memory dividers , i need one to run @ 3ghz and over ,but why not try for the extra bandwith if possible .  Ofcourse  all of this is moot until he gives us the ram he's usin, it might not be capable of this  .