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Intel P4 650

post #1 of 21
Thread Starter 
Well im VERY happy my new setup is up and kicking and it rocks but now i got a new CPU and better fan its 30c idle (on a P4 thats great for me! )

So i wanna overclock this baby - a program says my P4 can take 4Ghz+ and a max of 1.4v and its something like 1.1v now so what do people think i can get and a simple step by step for doing it (the faqs are a little too detailed for my liking )

The person who helps most will be thanked with rep
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P4 3.4Ghz 650 (OC to 4.0) Asus P5WD2-Premium XFX 520M 7900GT (RMAED) 2GB Corsair 5400 DDR2 PRO 
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My System
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P4 3.4Ghz 650 (OC to 4.0) Asus P5WD2-Premium XFX 520M 7900GT (RMAED) 2GB Corsair 5400 DDR2 PRO 
Hard DriveOSMonitorKeyboard
2x 200GB, 1x 320GB SG Windows Vista Ultimate Dell UltraSharp 2407WFP Logitech G15, Zboard FANG 
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post #2 of 21
I think you'll get over 4Ghz easy, those temps for a pressy Rock!

Anyways, max temps for the pressy should be 60-65°C (But I'm guessing you'll be able to keep it under 60 ) and your max Vcore should stay below 1.5~

What you should start with is locking your PCI/PCI-E buses to 33/100, so they don't automatically 'up' themselves and make your PCI cards malfunction.

If you've done that, start raising your FSB in small steps (like 3 - 5 at a time)
and see if you can boot into windows.
Run prime or whatever stress tests to see if your system is stable and if it is, just keep upping the FSB.
Once you can't boot into windows anymore, you should try upping your Vcore a notch and try again.

your RAM is good so I don't think that'll hold you back either.
If it does, you'll have to set a divider.
Oh, check cpuz under the memory tab to make sure it's running in 1:1 for now (FSB-RAM ratio)

Good luck!
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Q6600
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post #3 of 21
First off as already said keep your CPU temperature below 65C for safety. The Thermal Specification is 67.7C for your processor so you must keep it below that or else TM1 will start running up most likely.

As for your vcore, your CPU will actually use ~1.385v at stock, however the 1.1v is because of Intel SpeedStep Technology which will be running (unless you have disabled it). You should know what this does if not here is a breif explaination:

It drops your multiplier down to x14 thus reducing the clock speed down to 2.8GHz (stock settings, 14 x 200). This allows it to reduce voltage and thus reduces the heat output and the amount of wattage that it uses.

Keep your voltage less than or equal to 1.525v if your system can keep it cool enough.

Now for the memory: What divider setting is automatically set for your system? if its 1:1 then your wasting memory bandwith, you need to get your memory running as close to its rated speed as possible. This is where your dividers come in use as you can force your memory to run at higher speeds when you overclock. Just a point you already should know that overclocking the bus speed also increase the RAM speed, in conjunction at 1:1, however when in a different ratio it will change at a different rate so be careful about choosing your settings.
If the RAM is working at a good enough speed for you the n ingone the above point.

The rest is just straight forward (follow above post). After each major overclock though I would run Prime95 + memtest to make sure that it is stable at the settings specified.
post #4 of 21
Quote:
Originally Posted by The_Manual
Now for the memory: What divider setting is automatically set for your system? if its 1:1 then your wasting memory bandwith, you need to get your memory running as close to its rated speed as possible.
huh? Can you explain that a little more?
I thought running your RAM at a higher speed then your bus speed is more or less useless, as the RAM is only fed the data at the speed of the FSB
Q6600
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Q6600 G0 @ 3Ghz Asus P5Q Club3D HD 5770 1GB 4GB DDR2 
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Samsung: F1 640GB & F2 1000GB - Seagate: 320GB NEC ND3540A Win7 Pro LG L227WT 22" 
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Q6600
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Q6600 G0 @ 3Ghz Asus P5Q Club3D HD 5770 1GB 4GB DDR2 
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Samsung: F1 640GB & F2 1000GB - Seagate: 320GB NEC ND3540A Win7 Pro LG L227WT 22" 
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post #5 of 21
His 5400 DDR2 memory is clocked at 667-675MHz, so if he ran this in the standard 1:1 ratio he would lose 267-275MHz out of it. A higher divider setting would improve performance a bit like it has done with my system. Don't forget that the RAM has the ability to send things to other components. With a higher RAM speed data can be sent/received at a faster rate and can overall lead to an increase in performance. This gives many large boosts if you use integrated graphics as well, less if you use a PCI/AGP/PCI-E graphics adapter however.

A good example of where it will really help is when the GPU can not store anymore data in the GDDR memory and has to resort to using system memory, the GPU memory is much faster than system RAM so data can be sent from it very fast but the system RAM is much slower. If you boost the speed of the system RAM it can dramatically boost the speed of the data transfer between the graphics and the system RAM, thus resulting in a performance gain.

Now to the FSB, it will give a fair increase in speed (maybe 200MB+ of bandwith). The FSB is quad pumped so technically 200MHz which can send 4 electrical signals a clock cycle. The RAM is double data rate (if you use DDR/DDR2).
If we look at it this way the FSB can send/receive 800MHz worth of data a clock cycle. The RAM can send 400 which is half of the FSB, if you increase it the FSB/Memory can send and receive data at a faster rate
post #6 of 21
Great Thanks
Q6600
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Q6600 G0 @ 3Ghz Asus P5Q Club3D HD 5770 1GB 4GB DDR2 
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Q6600 G0 @ 3Ghz Asus P5Q Club3D HD 5770 1GB 4GB DDR2 
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Samsung: F1 640GB & F2 1000GB - Seagate: 320GB NEC ND3540A Win7 Pro LG L227WT 22" 
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post #7 of 21
Thread Starter 
Where can I find the memory divider?
My System
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Hard DriveOSMonitorKeyboard
2x 200GB, 1x 320GB SG Windows Vista Ultimate Dell UltraSharp 2407WFP Logitech G15, Zboard FANG 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
P4 3.4Ghz 650 (OC to 4.0) Asus P5WD2-Premium XFX 520M 7900GT (RMAED) 2GB Corsair 5400 DDR2 PRO 
Hard DriveOSMonitorKeyboard
2x 200GB, 1x 320GB SG Windows Vista Ultimate Dell UltraSharp 2407WFP Logitech G15, Zboard FANG 
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Hyper 580 Modular Black Akasa Eclipse-62 Logitech G5 Gaming 
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post #8 of 21
There will be an option in your BIOS to do this. It may say several things however and as I have never used a Gigabyte board I don't know how it will be shown.

It may show your memory frequency and allow you to modify that value with various options. Or it may actually give you the option to change the ratio e.g. 2:3 etc

These will all be in the overclocking section of your BIOS
post #9 of 21
Thread Starter 
I mean to see what its at now
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
P4 3.4Ghz 650 (OC to 4.0) Asus P5WD2-Premium XFX 520M 7900GT (RMAED) 2GB Corsair 5400 DDR2 PRO 
Hard DriveOSMonitorKeyboard
2x 200GB, 1x 320GB SG Windows Vista Ultimate Dell UltraSharp 2407WFP Logitech G15, Zboard FANG 
PowerCaseMouse
Hyper 580 Modular Black Akasa Eclipse-62 Logitech G5 Gaming 
  hide details  
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
P4 3.4Ghz 650 (OC to 4.0) Asus P5WD2-Premium XFX 520M 7900GT (RMAED) 2GB Corsair 5400 DDR2 PRO 
Hard DriveOSMonitorKeyboard
2x 200GB, 1x 320GB SG Windows Vista Ultimate Dell UltraSharp 2407WFP Logitech G15, Zboard FANG 
PowerCaseMouse
Hyper 580 Modular Black Akasa Eclipse-62 Logitech G5 Gaming 
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post #10 of 21
Quote:
Originally Posted by TeleFragX
I mean to see what its at now
CPU-Z should show what the divider is in the mem tab. A lot of DDR2 boards don't have dividers per say. They have Dram frequency settings. setting the Dram and cpu frequencies to seperate values is the same as setting a divider.
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Busa's Opti
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