gearhead364 Posted September 2, 2006 Posted September 2, 2006 I need some suggestions on stabilizing my rig; I have been using he DFI Overclocking Guide. So far I have found my max CPU speed to be 2970 MHz (330 x 9) with 1.40v; I have also found my maximum ram speed to be 255 MHz at 3-4-3-8. My proble seems to be the dividers, I have been using the 150 MHz (03/04) so that my CPU will run at 2970 and my ram will run at 247 MHz. With these settings I am able to boot in to windows, but Prime fails with in 1 min. My ram is Samsung UCCC and I have some really loose timings right now. Any suggestions on how to stabilize my system? vDIMM - 2.5v DRAM Frequency Set - 3:4 Command Per Clock (CPC) - Enable CAS Latency Control (Tcl) - 3 RAS# to CAS# delay (Trcd) - 4 Bus Clocks Min RAS# active time (Tras) - 8 Bus Clocks Row precharge time (Trp) - 4 Bus Clocks Row Cycle time (Trc) - 17 Bus Clocks Row refresh cyc time (Trfc) - 24 Bus Clocks Row to Row delay (Trrd) - 4 Bus Clocks Write recovery time (Twr) - 3 Bus Clocks Write to Read delay (Twtr) - 2 Bus Clocks Read to Write delay (Trwt) - 4 Bus Clocks Refresh Period (Tref) - 2560 DRAM Bank Interleave - Enabled DQS Skew Control - off DQS Skew Value - 0 DRAM Drive Strength - 6 DRAM Data Drive Strength - 1 Max Async Latency - 08.0 Nano Seconds DRAM Response Time - Normal Read Preamble Time - 06.5 Nano Seconds IdleCycle Limit - 256 Cycles Dynamic Counter - Enable R/W Queue Bypass - 16 x Bypass Max - 07 x 32 Byte Granularity - Disable(4 Bursts) Share this post Link to post Share on other sites More sharing options...
Guest caffeinejunkie Posted September 2, 2006 Posted September 2, 2006 Hmm try this with those settings: DRAM Frequency Set - 150=RAM/FSB:3/4 Command Per Clock (CPC) - Enable CAS Latency Control (Tcl) - 3.0 RAS# to CAS# delay (Trcd) - 04 Bus Clocks Min RAS# active time (Tras) - 08 Bus Clocks Row precharge time (Trp) - 04 Bus Clocks Row Cycle time (Trc) - 12 Bus Clocks Row refresh cyc time (Trfc) - 16 Bus Clocks Row to Row delay (Trrd) - 02 Bus Clocks Write recovery time (Twr) - 02 Bus Clocks Write to Read delay (Twtr) - 02 Bus Clocks Read to Write delay (Trwt) - 03 Bus Clocks Refresh Period (Tref) - 3684 Cycles Write CAS Latency (Twcl) - Auto DRAM Bank Interleave - Enabled DQS Skew Control - Auto DQS Skew Value - 0 DRAM Drive Strength - Level 7 DRAM Data Drive Strength - Level 3 Max Async Latency - 8.0 Nano Seconds DRAM Response Time - Normal Read Preamble Time - 6.0 Nano Seconds IdleCycle Limit - 016 Cycles Dynamic Counter - Disable R/W Queue Bypass - 16 x Bypass Max - 04 x 32 Byte Granularity - Disable(4 Bursts) and w/ 2.6v Share this post Link to post Share on other sites More sharing options...
gearhead364 Posted September 2, 2006 Posted September 2, 2006 Hmm try this with those settings: DRAM Frequency Set - 150=RAM/FSB:3/4 Command Per Clock (CPC) - Enable CAS Latency Control (Tcl) - 3.0 RAS# to CAS# delay (Trcd) - 04 Bus Clocks Min RAS# active time (Tras) - 08 Bus Clocks Row precharge time (Trp) - 04 Bus Clocks Row Cycle time (Trc) - 12 Bus Clocks Row refresh cyc time (Trfc) - 16 Bus Clocks Row to Row delay (Trrd) - 02 Bus Clocks Write recovery time (Twr) - 02 Bus Clocks Write to Read delay (Twtr) - 02 Bus Clocks Read to Write delay (Trwt) - 03 Bus Clocks Refresh Period (Tref) - 3684 Cycles Write CAS Latency (Twcl) - Auto DRAM Bank Interleave - Enabled DQS Skew Control - Auto DQS Skew Value - 0 DRAM Drive Strength - Level 7 DRAM Data Drive Strength - Level 3 Max Async Latency - 8.0 Nano Seconds DRAM Response Time - Normal Read Preamble Time - 6.0 Nano Seconds IdleCycle Limit - 016 Cycles Dynamic Counter - Disable R/W Queue Bypass - 16 x Bypass Max - 04 x 32 Byte Granularity - Disable(4 Bursts) and w/ 2.6v I will try those in a few minutes, but should I set the Tref for 3684, I thought that was for 100 MHz. Share this post Link to post Share on other sites More sharing options...
JDMJOSH Posted September 2, 2006 Posted September 2, 2006 probably needs a little more than 1.4v Share this post Link to post Share on other sites More sharing options...
gearhead364 Posted September 3, 2006 Posted September 3, 2006 thanks caffeine, running prime right now, had to bump vcore to 1.425 and run htt at 325. 2 hours of prime done, 6 to go. Share this post Link to post Share on other sites More sharing options...
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