a5ian300zx

Hi, did not want to start new thread so updating this one, i just changed my PSU to Enermax Revolution 1050w and now pc keeps crashing even more with below OC settings. trying to get at least 3.6ghz at 1600mhz memory speed. "Ai Overclock Manual CPU Ratio Setting 9 FSB Frequency 400 FSB Strap to North Bridge Auto PCIE Frequency 100 DRAM Timing Control Manual DRAM Frequency DDR3-1600 DRAM Command Rate Auto CAS# Latency Auto RAS# to CAS# Delay Auto RAS# Precharge Auto RAS# Active Time Auto RAS# to RAS# Delay Auto Row Refresh Cycle Time Auto Write Recovery Time Auto Read to Precharge Time Auto Read To Write Delay(S/D) Auto Write to Read Delay(S) Auto Write to Read Delay(D) Auto Read To Read Delay(S) Auto Read To Read Delay(D) Auto Write To Write Delay(S) Auto Write To Write Delay(D) Auto DRAM Static Read Control Auto DRAM Dynamic Write Control Auto Ai Clock Twister Strong Ai Clock Skew for Channel A Auto Ai Clock Skew for Channel B Auto Ai Transaction Booster Enabled Boost Level 3 (also tried 2) CPU Voltage 1.475 (also tried 1.5) CPU PLL Voltage 1.50 (also tried upto 1.6) North Bridge Voltage Auto DRAM Voltage Auto FSB Termination Voltage Auto South Bridge Voltage Auto Loadline Calibration Enabled CPU GTL Reference Auto North Bridge GTL Reference Auto DDR3 Channel A REF Voltage Auto DDR3 Channel B REF Voltage Auto DDR3 Controller REF Voltage Auto SB 1.5 Voltage Auto CPU Spread Spectrum Disabled PCIE Spread Spectrum Disabled I have tried to run prime95 64bit but keeps finding errors which I don't know what they mean. - at the moment i using the built in OC setting of the MB which has taken me to 3.0ghz and 1333mhz ram (which has worked perfect with no crashes. [Thu Jun 24 21:52:35 2010] FATAL ERROR: Rounding was 0.5, expected less than 0.4 Hardware failure detected, consult stress.txt file. Compare your results to other computers at http://www.mersenne.org/report_benchmarks Intel® Core2 Quad CPU Q6600 @ 2.40GHz CPU speed: 3599.95 MHz, 4 cores CPU features: RDTSC, CMOV, Prefetch, MMX, SSE, SSE2 L1 cache size: 32 KB L2 cache size: 4 MB L1 cache line size: 64 bytes L2 cache line size: 64 bytes TLBS: 256 Prime95 64-bit version 25.11, RdtscTiming=1 Best time for 768K FFT length: 9.818 ms. Best time for 896K FFT length: 12.058 ms. Best time for 1024K FFT length: 13.453 ms. Best time for 1280K FFT length: 17.136 ms. Best time for 1536K FFT length: 20.574 ms. Best time for 1792K FFT length: 25.167 ms. Best time for 2048K FFT length: 27.804 ms. FATAL ERROR: Rounding was 0.5, expected less than 0.4 Hardware failure detected, consult stress.txt file. [Fri Jun 25 20:55:09 2010] M5 is prime! Wd4: 000A000A,00000000 M5 is prime! Wd4: 000A000A,00000000 FATAL ERROR: Rounding was 0.5, expected less than 0.4 Hardware failure detected, consult stress.txt file. [Fri Jun 25 21:07:24 2010] FATAL ERROR: Rounding was 0.5, expected less than 0.4 Hardware failure detected, consult stress.txt file. FATAL ERROR: Resulting sum was -7.915474850207162e+074, expected: 8.786677905743552e+016 Hardware failure detected, consult stress.txt file. FATAL ERROR: Rounding was 0.5, expected less than 0.4 Hardware failure detected, consult stress.txt file. FATAL ERROR: Rounding was 0.5, expected less than 0.4 Hardware failure detected, consult stress.txt file. [Fri Jun 25 21:55:20 2010] FATAL ERROR: Rounding was 0.5, expected less than 0.4 Hardware failure detected, consult stress.txt file. FATAL ERROR: Rounding was 0.5, expected less than 0.4 Hardware failure detected, consult stress.txt file. FATAL ERROR: Rounding was 0.5, expected less than 0.4 Hardware failure detected, consult stress.txt file. FATAL ERROR: Rounding was 0.5, expected less than 0.4 Hardware failure detected, consult stress.txt file. my system spec. Intel Core 2 QUAD Q6600 Slarc G0 + EK HF Supreme waterblock, 2x2GB Corsair XMS3 DHX TW3X4G1600C9DHX 4GB DDR3 1600Mhz 9-9-9-24 2T, Maximus Extreme Bios 1302, Enermax revolution 1050w, ATi 2900XT 1GB inc Waterblock, Triple thermochil Rad, D5 pump, 2 Intel G2 SSD Raid 0, 1x WD 1TB GP, Windows 7 64bit any help appreciated. a5ian300zx

im at 3.6ghz now with 1600mhz with standard timing just need to figure out how to tighten the timings now.

thanks for your answer does anyone have a good comprehensive guide to OC that they can recommend? edit: you answered my question before i posted it - so efficient here will give it a read.

thanks for the explanation - i guess its trail and error then

this is the bit that confuses me why would that be? I have the same models etc why is his better, im i missing something? should i buy a different motherboard to achieve the result or willi come across the same issue? thanks for your prompt feedback guys loving this forum already

then i don't understand how that guy is running the same CPu/memory/motherboard as me at 3.8ghz on air with 4gb xms3 at 1600Mhz 7-6-6-15 1T @ 1.8v. when i can't get pass 3.2ghz on water (highend) at 1600mhz. I ideally i would like to increase my cpu and FSB speed and with the tight timing it would have been really quick. there also a guy who left a review for this ram on ocuk shop say he was running the following: Reviewed by: extremeGamer I am using this super UBER FAST ddr3 on my maximus extreme at 7-6-6-10 1T timings @ 1.8volts! with these ULTRA TIGHT timings I even outperformed the same ddr3 1600mhz expensive dhx kit which is rated at 7-7-7-20 for the price of

i have already tried that but still the same issue, my memory is running at 9-9-9-24 2T - but i want to get it tighter so its quicker thanks

Hi, i have been trying to OC my motherboard for ages now and for some reason cannot over clock it more than 3.2Ghz on Water it just does not boot and TFT goes into sleep mode, I recently bought 4gb corsair ram TW3X4G1600C9DHX as one of the guys on asus forum got it to run on really tight timing which is what i wanted to do, he posted his setting but for some reason mine just does not boot. it display dec ram on the LCD display regardless of if i have 2gb or 4gb. please see below for his settings. "Ai Overclock Manual CPU Ratio Setting 9 FSB Frequency 400 FSB Strap to North Bridge Auto PCIE Frequency 100 DRAM Timing Control Manual DRAM Frequency DDR3-1600 DRAM Command Rate 1T CAS# Latency 7 RAS# to CAS# Delay 6 RAS# Precharge 6 RAS# Active Time 15 RAS# to RAS# Delay Auto Row Refresh Cycle Time Auto Write Recovery Time Auto Read to Precharge Time Auto Read To Write Delay(S/D) Auto Write to Read Delay(S) Auto Write to Read Delay(D) Auto Read To Read Delay(S) Auto Read To Read Delay(D) Auto Write To Write Delay(S) Auto Write To Write Delay(D) Auto DRAM Static Read Control Disabled DRAM Dynamic Write Control Disabled Ai Clock Twister Strong Ai Clock Skew for Channel A Auto Ai Clock Skew for Channel B Auto Ai Transaction Booster Enabled Boost Level 3 CPU Voltage 1.478 vdrop 1.464 CPU PLL Voltage 1.50 North Bridge Voltage 1.40 DRAM Voltage 1.80 FSB Termination Voltage 1.2 South Bridge Voltage 1.1 Loadline Calibration Enabled CPU GTL Reference 0.63 North Bridge GTL Reference 0.67 DDR3 Channel A REF Voltage Auto DDR3 Channel B REF Voltage Auto DDR3 Controller REF Voltage Auto SB 1.5 Voltage Auto CPU Spread Spectrum Disabled PCIE Spread Spectrum Disabled CPU Temp 34 MB Temp 40 NB Temp 46 SB Temp 41 Everest Read 10807 Everest Write 7716 Everest Copy 8567 Latency 46.8 CPU/FSB Overclock 60% Bios Version 1302 DDR3 Memory Modules used: 2x2GB Channel 1 Socket A1 Corsair XMS3 DHX CM3X2G1600C9DHX 2048MB Socket A2 Not Used Channel 2 Socket B1 Corsair XMS3 DHX CM3X2G1600C9DHX 2048MB Socket B2 Not Used Intel Core 2 QUAD Q6600 Kentsfield G0 Stepping VID 1.2000v CPU 2.4GHZ O/C @ 3.8GHZ on Air, Thermalright TRUE Black 120 CPU Cooler with 120mm LED Fan, 2x2GB Corsair XMS3 DHX TW3X4G1600C9DHX 4GB DDR3 1600Mhz 7-6-6-15 1T @ 1.8v, ASUS ROG Maximus Extreme Bios 1302, PCB Rev 2.01G, Tagan 2-Force II 800Watts PSU 6Rails +12volts, BFG GeForce 9800GTX OCX 512MB 755core/2300mem/1890shader, 2 x Western Digital 74GB Raptors ADFDs 16MB RAID 0, 1x Western Digital Caviar Black 640GB 32MB SATAII, Windows 7 Ultimate RTM 64bit build 7600.16385.win7_rtm.090713-1255 Hope that these settings will solve all your memory issues! I used these settings 24/7 rock stable no bsod`s in vista ultimate x64 and windows 7 ultimate x64!!" now i want to run the ram on some tight timing but cannot get it running at 7-6-6-15 1T @ 1.8v, at the moment im running at 1600mhz but with standard timings of 9-9-9-24 2T. any help would be really appreciative, please see below for my spec.