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New mobo OCin - Must be doing something wrong

post #1 of 8
Thread Starter 
Ok so I broke down and said **** dell and got a new Mobo today to go with my new water cooling system. I bought the Asus P5LD2 MkGreat, so I start the install and finish without a glitch, now I have a god damn high end system imo for a quick refrence its a P4 Prescott Socket 775 Hyper Threaded at 3.2 Stock. For some reason I cannot pull over 3.7Ghz without booting aka I set it to 3.8 etc and I cannot load windows. Max Im at now is 3.7 Ive tried lowering the multiplier etc and cannot load again anyone with my chip chime in its much appreciated.
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post #2 of 8
What kind of RAM do you have? If it's cheapo value ram, you've probably hit its limit, and should run it on a divider, so you can continue to push your CPU without overstressing your RAM.
post #3 of 8
Thread Starter 
Quote:
Originally Posted by Namrac
What kind of RAM do you have? If it's cheapo value ram, you've probably hit its limit, and should run it on a divider, so you can continue to push your CPU without overstressing your RAM.

Top of the line PNY 4x512 DDR2
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post #4 of 8
Quote:
Originally Posted by DeepFreeze
Top of the line PNY 4x512 DDR2

That doesnt say much. What speed does the ram run at? PC2-4300 PC2-5300? Thats the question.
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2x200 Maxtor SATA XP SP2 Acer 22" Wide Microsoft multi media 
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post #5 of 8
Thread Starter 
Quote:
Originally Posted by Adeoliver
That doesnt say much. What speed does the ram run at? PC2-4300 PC2-5300? Thats the question.

PC-4300 (266mhz)
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post #6 of 8
Ever since I came to this site I have seen many people start their overclock at the top and then wonder why it is not working. I have also looked through the FAQ's and Tutorials and must say that nothing I have put down below is not in those areas. However, here's my view and hopefully it will help you.

I was taught overclocking from a bottom up philosophy, not a top down. One never starts that high if they want to do it correctly.
  1. The steps I was taught were as below:
    • Set the entire system to default.
    • Run Memtest86 for two passes on a boot
    • Run Prime95 (two instances for dual cpu's/hyperthreaded) for ~6 hours
    • Run SuperPi (32M)
  2. If all is clean then:
  3. Set the DRAM to the loosest settings the motherboard will allow. 200/266/333/400 (set for 200, if not there set for 266 ... )
  4. Lock the AGP/PCI-e/PCI busses to their spec.
  5. Set the Legacy USB devices to disabled
  6. Disable any spread spectrum strobe settings
  7. Raise the fsb 5 units
  8. Rebooot the system and enter Windows
  9. Run SuperPi (4M)
If clean, repeat from 7. When a failure occurs: Raise the CPU voltage .1V and repeat at the failure level.

If clean, move on to repeat from 7 and when a failure occurs repeat from 8.

You will find what is called a diminishing return which basically is where the amount of raising of the Voltage is at a limit or not bringing any real effect for the amount of raise. In other words, a raise from 1.3V to 1.4V brings about a change of fsb in the 15 unit level but a raise from 1.4V to 1.5 brings a 2 unit level increase which is not worth the voltage raise. Whe you reach that plateau then return to the worthwhile raised level and enter windows.

Run SuperPi (32M). If this passes then run Prime95 for ~12 hours (2 instances for dual cpu and/or Hyperthreading).

If you pass, then you can now play with the dram and get the tightest settings for its ability.

If you do not pass, then raise the voltages again, keeping in mind the maximum voltages for the CPU, the Heat of Full Load and the Diminishing Return to which I previously spoke.

This is how I have been taught and yes, it is time consuming but that is the fun of the "Art Form". If it was simply to set it to a very high level and hope it worked there would not be nearly as much fun in this now would there? Remember that this is at the elementary level and after this is done and if problems occur then posting requests for help will allow the veteran overclockers to focus on the more elusive aspects of your overclock.

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2 X Callisto Deluxe 25nm 60GB Plextor PX-B910SA 4x Blu-ray DVD-RW Win7 64 2 x Samsung 275T+ 
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post #7 of 8
It's a 945P chipset and take also into consideration that you have a vanila 945P, not the Deluxe.

The Deluxe version has a little more beffier caps, just like the P5WD2s......you have the regular non-Premium and the Premium. There might be a limitation that prevents the board from giving all that extra power to the CPU, caps IMO. Just like my 915P, the 925XE clock higher than.
post #8 of 8
3.7 is nothing to sneeze at. But yeah, you probably need better RAM. I've never liked PNY, as they don't have good quality stuff anymore. Going with somebody like G. Skill or OCZ is what I would reccomend. I would get those, but my board is so reluctant to OC anyways... However, have you been raising the voltages at all? Oh, and I generally raise it by 5 FSB until windows doesn't boot, which happens very fast for me...
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