View Single Post
eva2000
Administrator
 eva2000's Avatar
 
Join Date: Jul 22 2004
Australia
Brisbane, Australia
Posts: 19,301
Blog Entries: 13
eva2000 is offline
5:6 Memory Divider (2.40B) + MCH Tweak Testing
Old 29-07-2008, 06:49 AM   #4 (permalink)

5:6 Memory Divider (2.40B) + MCH Tweak Testing

Revisiting the 2.40B 5:6 memory divider but this time I've gotten a better handle on tweaking memory, voltages and the above outlined MCH tweaks

I had no problems using NB (MCH) voltage of 1.56v for these tests which helped stablise the high 640Mhz 5-5-5-15 memory clock along with what P45 chipset considers tight tRead value of 9.

Setting the 4 subtimings listed here to the following also helped stablise memory clock at 640mhz 5-5-5-15 at 2.56v
  • Trd2rd(Different Rank).: 10
  • Twr2wr(Different Rank): 9
  • Twr2rd(Different Rank): 9
  • Trd2wr(Same/Diff Rank): 10

7.5x533FSB 2.40B 640Mhz 5-5-5-15






tRD 9


tRD 9 + Tweak 1


tRD 9 + Tweak 1 + 2


Super Pi 1M with Tweak 1 + 2


Super Pi 32M with Tweak 1 + 2


32M time still around 20-25 seconds slower than P35/X38/X48 but getting there

Last edited by eva2000; 13-08-2008 at 03:05 AM..
Reply With Quote