ASUS P5E3 Deluxe Overclocking: DDR3 Takes Front Stage
by Kris Boughton on November 20, 2007 4:00 AM EST- Posted in
- CPUs
450 FSB Quad-Core BIOS Settings
In the true spirit of giving we present to you an easy, all-in-one overclock setting guide, practically guaranteed to have your 65nm quad-core stable at 450MHz FSB or greater. You may find the need to increase the voltage for your particular CPU higher than our suggestions if cooling permits.
In the true spirit of giving we present to you an easy, all-in-one overclock setting guide, practically guaranteed to have your 65nm quad-core stable at 450MHz FSB or greater. You may find the need to increase the voltage for your particular CPU higher than our suggestions if cooling permits.
| ASUS P5E3 Deluxe Quad-Core Setup Guide for 450FSB | |
| CPU Features | |
| Ai Overclock Tuner | Manual |
| CPU Ratio Control | Manual |
| CPU Ratio Setting | 8 |
| FSB Strap to North Bridge | 266 |
| FSB Frequency | 450 |
| PCIE Frequency | 115 |
| DRAM Frequency | DDR-1800 |
| DRAM Command Rate | 1T |
| DRAM Timing Control | Manual |
| DRAM Timings | |
| CAS# Latency | 7 DRAM Clocks |
| RAS# to CAS# Delay | 7 DRAM Clocks |
| RAS# PRE Time | 7 DRAM Clocks |
| RAS# ACT Time | 15 DRAM Clocks |
| RAS# to RAS# Delay | Auto |
| REF Cycle Time | Auto |
| WRITE Recovery Time | Auto |
| READ to PRE Time | Auto |
| READ to WRITE Delay(S/D) | Auto |
| WRITE to READ Delay(S) | 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 | 2 |
| Voltage Settings | |
| CPU Voltage | 1.475 |
| CPU PLL Voltage | 1.6 |
| FSB Termination Voltage | 1.5 |
| DRAM Voltage | 1.96 |
| NB Voltage | 1.61 |
| SB Voltage | Auto |
| Clock Over-Charging Voltage | Auto |
| Load-Line Calibration | Disabled |
| CPU GTL Voltage Reference | Auto |
| NB GTL Voltage Reference | Auto |
| CPU Spread Spectrum | Disabled |
| PCIE Spread Spectrum | Disabled |
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Owls - Tuesday, November 20, 2007 - link
DDR2 is hardly "inferior". When comparing 4GB of DDR3 vs 4GB of DDR2, I can build a whole new computer with what I'd have spent on DDR3. It just doesn't make sense right now no matter how you cut it.. and only having 1GB of ram now?TA152H - Tuesday, November 20, 2007 - link
I run most of my machines with 512 MB, so 1 GB is hardly a problem.There are some things you need more memory than 1 GB for.
When I see stuff like "It doesn't make sense no matter how you cut it", I instantly think you're an idiot. You're probably not, but that statement is absurd. There is always a group that the cost of the most expensive, and fastest parts, makes sense. The cost of memory is trivial compared to the cost of salaries, for example, and spending $500 to help someone work faster pays for itself very quickly.
I think the main problem is that most people do not understand that more memory does not always make things faster. I deal with this all the time.
AnnihilatorX - Tuesday, November 20, 2007 - link
Correct me if I am wrongThe increase in FPS you see going from 400x9 to 465x9 is nearly 100% due to increase in CPU frequency
The performance increase of a 465x9 RAM running at 2:1 memory divider would be less than 5% higher than a similar configuration of 465x9 with slower RAM running at lower divider ratios.
That would mean there is no sense to buy a premium DDR3 for $500 extra for what you can do with less than 5% performance sacrifice with the dirt cheap DDR2 RAM.
snarfbot - Sunday, November 25, 2007 - link
no everything you said is correct.the thing that really gets me though, is that pc6400 ddr2 is commonly capable of reaching 485mhz at lower timings. so whats so great about ddr3?
on a p35 you can easily reach the same speed with cheap memory, at cas 5, sometimes even cas 4 with good overclockable ram.
so basically the only benefit that ddr3 has going for it is the lower voltage required, and of course lower temps, not worth the premium. period.
Aivas47a - Tuesday, November 20, 2007 - link
This is one of the best, detailed overclocking guides I've ever seen. Excellent job! I'm especially glad to have the mystery of Transaction Booster, Skew, and Clock Twister in the Asus bios explained.Now, if you guys could just prepare a guide for memory subtimings, the treatise would be complete. :)
Thanks very much for this.