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New to the forum, looking for help to overclock my P4

post #1 of 19
Thread Starter 
i built my computer about 3 years ago and the following are my specs:

P4 2.4 process (400 FSB)
Asus P4PE MB
2 512 rams

I wanted to overclock my computer 3 years ago, but I was pretty happy with the performance of it so I did not look into this option. Recently, I am bored and I think I need to start modifying things around me again.

The cooling of my PC is not a concern for me because I have two exhaust fans, one on the top of my case and one on the side. I have a video card exhaust fan below the video card slot. I also upgraded the CUP fan 3 years back and used a good thermal glue thingy between the CPU and fan. Therefore, temperature is not a main concern for me. I monitor my temperatures using Asus factory software.

That being said, I followed the sticky thread on top and tried to change some settings in my BIOS. First, I upped the freq. to around 150 and I also up the Vcore to around 1.50.

I am not sure what I need to change in terms of the RAM voltage and other things that's related to the RAM.

Can some body give me few tips on exactly what needs to be done in terms of changing the freq, vcore, RAM settings and etc?

Anyway, any help or tips you guys can give me will be great.

Its good to be here and I look forward to learn new things.

Brandon
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CPUMotherboardGraphicsRAM
2.4 Northwood 400 FSB Asus P4PE ATI 128MB 2x 512 Samsung 
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2x 60GB Western Digital Windows XP SP2 NEC 17" LCD Logitech 
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CPUMotherboardGraphicsRAM
2.4 Northwood 400 FSB Asus P4PE ATI 128MB 2x 512 Samsung 
Hard DriveOSMonitorKeyboard
2x 60GB Western Digital Windows XP SP2 NEC 17" LCD Logitech 
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400 watts? Xoxide MS Optical 
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post #2 of 19
Welcome to the forums!

Take a look here:

http://www.overclock.net/intel-cpus/...ing-guide.html

If you have questions or aren't clear on certain things just create a new thread in the appropriate section.
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post #3 of 19
Welcome to the forums.

A couple of other starting suggestions in addition to perusing the guide - 1) fill in your complete system specs through your User CP and 2) download CPU-Z (online or from our downloads forum) and post screen shots of the main and memory tabs as those will give us more detailed info about your gear.
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post #4 of 19
Thread Starter 
hey guys, how do i create a signature like the ones you guys have?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
2.4 Northwood 400 FSB Asus P4PE ATI 128MB 2x 512 Samsung 
Hard DriveOSMonitorKeyboard
2x 60GB Western Digital Windows XP SP2 NEC 17" LCD Logitech 
PowerCaseMouse
400 watts? Xoxide MS Optical 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
2.4 Northwood 400 FSB Asus P4PE ATI 128MB 2x 512 Samsung 
Hard DriveOSMonitorKeyboard
2x 60GB Western Digital Windows XP SP2 NEC 17" LCD Logitech 
PowerCaseMouse
400 watts? Xoxide MS Optical 
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post #5 of 19
For sigs, go to User CP, Edit Signature. For system specs, go to User CP, Edit System Specs.
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post #6 of 19
Thread Starter 
Quote:
Originally Posted by Taeric View Post
For sigs, go to User CP, Edit Signature. For system specs, go to User CP, Edit System Specs.
thanks a lot.

let me go home and download the software and then post my specs. i am excited to be here.
My System
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CPUMotherboardGraphicsRAM
2.4 Northwood 400 FSB Asus P4PE ATI 128MB 2x 512 Samsung 
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2x 60GB Western Digital Windows XP SP2 NEC 17" LCD Logitech 
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400 watts? Xoxide MS Optical 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
2.4 Northwood 400 FSB Asus P4PE ATI 128MB 2x 512 Samsung 
Hard DriveOSMonitorKeyboard
2x 60GB Western Digital Windows XP SP2 NEC 17" LCD Logitech 
PowerCaseMouse
400 watts? Xoxide MS Optical 
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post #7 of 19
I had a very similar system and had some luck overclocking it (the 2.4 Northys aren't the greatest OCers in the world), but I'm sure we can teach you the ropes with that gear. The P4PE is a pretty easy board to OC.
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2x250 GB Seagate RAID 0 + 320 GB Seagate Samsung SATA DVD Windows XP Pro/Vista Ultimate 64 bit Viewsonic VA2012wb 
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post #8 of 19
Thread Starter 
Ok, below are my specs. I used to be pretty good and savvy with computer stuff, but now I am very rusty. I am not exactly sure what i need to do (but i did read the DIY section on how to overclock). I hope the stuff will come back to me after some quick lessons here.

If would be great if you guys can give me some pointers on what I can do for me to overoclock my PC. It would also be great if someone can also briefly explain to me on how things work and why i have to make certain adjustments.

I did make some changes to my BIOS settings after I read through the DIY section so the specs below might not be exacly stock/factory settings.

Thanks VERY much in advance.

CPU

Cache

Motherboard

SPD

Memory Slot 1 and 2 are the same. Slot 3 is empty.

Temperature after 15 minutes of operation
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
2.4 Northwood 400 FSB Asus P4PE ATI 128MB 2x 512 Samsung 
Hard DriveOSMonitorKeyboard
2x 60GB Western Digital Windows XP SP2 NEC 17" LCD Logitech 
PowerCaseMouse
400 watts? Xoxide MS Optical 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
2.4 Northwood 400 FSB Asus P4PE ATI 128MB 2x 512 Samsung 
Hard DriveOSMonitorKeyboard
2x 60GB Western Digital Windows XP SP2 NEC 17" LCD Logitech 
PowerCaseMouse
400 watts? Xoxide MS Optical 
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Reply
post #9 of 19
It looks like you already got started. The stock speed of that CPU is 133 MHz, and you're running at 145 MHz. With the same CPU and mobo, my system maxxed out around 2.75 GHz; yours may go further or fall short, and you'll never know until you tweak it out.

You have just a few things to juggle to take care of the basics -
  • External clock speed (145 MHz currently)
  • RAM ratio (1:1 currently)
  • RAM timings (2.5-3-3-6 currently)
  • vcore (CPU voltage - currently 1.66 volts) and vdimm (RAM voltage - you'll have to check in the BIOS for that)
  • AGP/PCI frequencies (lock at 66/33 MHz if you haven't done so)
Some motherboards, particularly newer ones have more advanced options, but those are the basics that will take you most of the way to your max. speeds.

As you raise the clock speed in small increments (about 3 MHz at a time), your system with either be stable or unstable. If it's stable, proceed with raising it until it becomes unstable. At that time, you'll need to increase your vcore, increase your vdimm, and/or loosen your RAM timings. There's no definitive answer as to which one(s) to do at any given time, though you will get a feel for it as you gain more experience with overclocking.

With your CPU, you'll want to keep your vcore at no more than 1.70 volts with a load temperature of 55°C. If you reach either of those limits, you're pretty much at your limit if you plan on keeping your computer in service for a while. You can exceed either or both of those, but that will adversely affect the life of your components, which may or may not be a big deal, depending on your future upgrade plans.

Anyway, it looks like your CPU already has a fair amount of vcore, so you may have a bit of headroom to OC further without adding more voltage. You may need to loosen your RAM timings to something along the lines of 3-3-3-6 or 3-4-4-7 as you go along and increase your vdimm up a notch or two. I would expect that you wouldn't want to go above 2.7 or 2.8 volts with that generation of RAM.

I would expect that RAM ratio will not come into play with your gear since the speed of the RAM and the speed of the CPU are matched. If you find that your RAM limits you, you may want to drop the RAM speed back a notch. I don't recall if that BIOS explicitely shows ratios (e.g. 5:4) or if you select a RAM speed (e.g. DDR266), but I seem to recall that it does have a way to change it.

The most important thing is to just go slow and learn as much as you can about how your particular components interact and behave. Overclocking is much more of an art than a science, and there's not one right way to attack it. Just take lots of baby steps, and you'll have things maxxed out in no time.
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Hard DriveOptical DriveOSMonitor
2x250 GB Seagate RAID 0 + 320 GB Seagate Samsung SATA DVD Windows XP Pro/Vista Ultimate 64 bit Viewsonic VA2012wb 
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post #10 of 19
Thread Starter 
Quote:
Originally Posted by Taeric View Post
It looks like you already got started. The stock speed of that CPU is 133 MHz, and you're running at 145 MHz. With the same CPU and mobo, my system maxxed out around 2.75 GHz; yours may go further or fall short, and you'll never know until you tweak it out.

You have just a few things to juggle to take care of the basics -
  • External clock speed (145 MHz currently)
  • RAM ratio (1:1 currently)
  • RAM timings (2.5-3-3-6 currently)
  • vcore (CPU voltage - currently 1.66 volts) and vdimm (RAM voltage - you'll have to check in the BIOS for that)
  • AGP/PCI frequencies (lock at 66/33 MHz if you haven't done so)
I thought it was always better to set the RAM ratio to 1:1, is this not correct?

I have took your advice and changed the AGP/PCI freq and changed it from Auto to Manual and locked at 66/33 MHz.


Quote:
Originally Posted by Taeric View Post
As you raise the clock speed in small increments (about 3 MHz at a time), your system with either be stable or unstable. If it's stable, proceed with raising it until it becomes unstable. At that time, you'll need to increase your vcore, increase your vdimm, and/or loosen your RAM timings. There's no definitive answer as to which one(s) to do at any given time, though you will get a feel for it as you gain more experience with overclocking.

With your CPU, you'll want to keep your vcore at no more than 1.70 volts with a load temperature of 55°C. If you reach either of those limits, you're pretty much at your limit if you plan on keeping your computer in service for a while. You can exceed either or both of those, but that will adversely affect the life of your components, which may or may not be a big deal, depending on your future upgrade plans.
I followed the SPD timing table and set my RAM timings according to 100 MHz so RAM timing is now set to 2.2.2.5. Is this OK? (System seems to run fairly stable) When you say lower the timing, I assume I need to lower the numbers? And just to clarify, RAM speed and RAM timing means the same thing, right?

Also, when you say that Vcore should not be more at 1.7V is that referring to the BIOS page? Or, should I monitor my Vcore and make sure it does not go over 1.7V while the PC is operating? Its set to 1.6 now, but I noticed that it jumps to 1.68 sometimes. So, does this mean if I set it to 1.7 it will actually go OVER 1.7V while in operation? Which technically means I should NOT set it to 1.7V in BIOS?

And thanks for reminding me about the 55°C threshold, I read that in the DIY section and have kept it in mind. Like I said, I am not so concerned with temperature because I know my cooling is pretty well secured. Also, I am more concerned with longevity and reliablity so I don't want to risk anything by going beyong the safety limit.

Quote:
Originally Posted by Taeric View Post
Anyway, it looks like your CPU already has a fair amount of vcore, so you may have a bit of headroom to OC further without adding more voltage. You may need to loosen your RAM timings to something along the lines of 3-3-3-6 or 3-4-4-7 as you go along and increase your vdimm up a notch or two. I would expect that you wouldn't want to go above 2.7 or 2.8 volts with that generation of RAM.
Currently, its set at 2.7 V for vdimm.

Like I mentioned above, I set timing to 2.2.2.5...is this correct?

Quote:
Originally Posted by Taeric View Post
I would expect that RAM ratio will not come into play with your gear since the speed of the RAM and the speed of the CPU are matched. If you find that your RAM limits you, you may want to drop the RAM speed back a notch. I don't recall if that BIOS explicitely shows ratios (e.g. 5:4) or if you select a RAM speed (e.g. DDR266), but I seem to recall that it does have a way to change it.
What do you mean by if I find my RAM limits me?

Thanks A LOT
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
2.4 Northwood 400 FSB Asus P4PE ATI 128MB 2x 512 Samsung 
Hard DriveOSMonitorKeyboard
2x 60GB Western Digital Windows XP SP2 NEC 17" LCD Logitech 
PowerCaseMouse
400 watts? Xoxide MS Optical 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
2.4 Northwood 400 FSB Asus P4PE ATI 128MB 2x 512 Samsung 
Hard DriveOSMonitorKeyboard
2x 60GB Western Digital Windows XP SP2 NEC 17" LCD Logitech 
PowerCaseMouse
400 watts? Xoxide MS Optical 
  hide details  
Reply
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