Overclocking 24 replies

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Cap.Miller

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17th January 2005

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#1 13 years ago

I want to overclock my Intel P-IV 650 (3.4 Ghz/ I'm running the system at 32bit and not 64bit). Does anyone know where I can find a "how to" for overclocking my CPU, or if it's easy maybe explain me? I know all risks and I'm using a liquid cooling device. My CPU never gets over 50 celsius (mostly it's under 40). Thank you very much for answer :)




Armchair_Commando

Live to Frag

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29th December 2004

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#2 13 years ago

one way to do it is to go into the bios and mess with the clock multipliers i think. i cant get more specific than that. sorry, but maybe it will point you in the right direction.




Guest

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#3 13 years ago

up the fsb little by little until yoy find your max stable OC. fsb options in bios. as armchair siad, multiplyers, but they can make the speed jump in too big of incraments, fsb the best way to do it, imho.




Johnny Mullet

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7th March 2005

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#4 13 years ago

I think that overclocking an already fast CPU like the P4 3.4 is stupid if you ask me!

Overclocking is meant for slower CPU's to get faster performance. By today's standards, your CPU will handle anything you throw at it without a sweat!

Please think about what you are trying to do to an already fast as hell CPU!




cokefizz3000

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29th July 2005

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#5 13 years ago

Ya be careful with the overclocking. i tried over clocking my old amd k-6 and it completely died. Your 3.4 ghz should be fine. Unless your are running a million programs at once i wouldnt overclock. But if you must YOu could use http://tw.giga-byte.com/MotherBoard/FileList/NewTech/Tech_20041125_PX_ET5.htm




C38368

...burning angel wings to dust

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14th February 2004

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#6 13 years ago

First off: you can't change the multiplier on a retail Intel chip anymore (EIST might make one exception on that, but it would only allow you to change the multi down, which is pointless unless you're going for stratospheric memory clocks--not unheard of, especially with DDR2, but beyond what you'll be wanting to do at first).

Beyond that, you'll want to adjust the frontside bus (FSB) up from it's default of 200MHz (Netburst is a quad-pumped architecture, so four instructions are sent per clock cycle). To start with, you'll want to bump the bus by 1MHz (to 201MHz). Boot from that, then run Memtest86+. Make sure that it can successfully run all eight tests (it should, but this is a good, methodical first step to take).

Now then, this is where things get tricky. Once you successfully boot at 201MHz, go back into the BIOS and try 205MHz. That's an arbitrary number, really, but I always go by 5MHz increments. Once you reach a point where you either cannot POST, or cannot run Memtest86+/3DMarkXX or whatever else, then you can start backing down on the FSB until you find a stable frequency.

Most importantly of all, however: Make certain that you know where the CMOS reset jumper is!!! I cannot stress that enough. Check the your motherboard's manual: it'll tell you where it is. By default, that jumper maintains the BIOS chip's settings. In the other position, it resets all BIOS settings to their defaults. This is how you fix your computer when it fails to POST on too much of an overclock (and believe me, you'll find that point unless you give up early on).

Two other things of note: Your memory will run at a ratio relative to the FSB. By default, this ratio is 1:1 (so for every 1MHz on the FSB, the memory is clocked at 1MHz). Other typical ratios are 4:5 and 2:3 (which run the memory faster than the FSB) and 5:4 and 3:2 (which run the memory slower--these two asynchronous ratios are more commonly used than the other two). There are more, but usually only show up on AMD boards. If your computer starts having issues running stable while overclocked, you might try lowering the memory ratio to slow it down. Also, you might want to loosen your memory timings as far as you can (raise the numbers) while trying to find a max overclock for your CPU; that will help take the memory out of the equation. However, I don't know how much additional overheard you get with DDR2 over DDR in this case, so take that with a grain of salt. Second, from the 915 core logic on, Intel has built a bit of an overclocking roadblock into their chipsets, and they often won't let you run them at more than a 10% overclock (220MHz FSB). This can usually be circumvented by increasing the voltage to the chipset. Be careful in doing tihs, however--raising the voltage too high is the number one killer of overclocked hardware.

I've probably confused the hell out of you by now, but I find that it helps to have an idea of what you're trying to do before going in, even if it doesn't make sense at first. Take a peek at the BIOS screen and come back with any questions that arise as a result of it. Welcome to the addiction, just make sure to keep a bloody close eye on your CPU's temps--they don't call 'em PresHOTTs for nothing!




Guest

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#7 13 years ago
Mullet ManI think that overclocking an already fast CPU like the P4 3.4 is stupid if you ask me![/quote] there really not that fast. for media people they are the fastest, and dont require an OC for that. compared to its competetors they only beat them by a slight ammount, so feeble infact, its worth getting an amd64 for all the many other benifits, like gaming, and dual core for multithreading.
Mullet Man Overclocking is meant for slower CPU's to get faster performance. By today's standards, your CPU will handle anything you throw at it without a sweat!
[quote=Mullet Man]Please think about what you are trying to do to an already fast as hell CPU!

again, gigahertz gigahertz gigahertz, its not what matters. dont let the numbers fool you. gigahertz is not the only thing, that detirmines the performance power of a processor. you know this already, so put 2 and 2 together.

@C3 big overkill, a simple "increase the fsb" would have done, but we all, including i, appreciate the enthusiasm. you should make a tut on this, and ask for it to be sticky.




Cap.Miller

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17th January 2005

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#8 13 years ago

Thank you all for your answers :) I'm going to try that out with the FSB. And yes I read that about raising the Voltage high, that it can blow up the CPU. But when I only set the FSB higher then the only thing can happen is overheating right? For Temp. Control I have activated Thermal Control 2 in bios, so the CPU will automatically get slower if it overheats. I actually don't have problems playing BF2 and other games (actually my graficcard died yesterday/and now I have to play CS again:rolleyes:. I want to make my CPU faster for the only simple reason: I want more for my money :D So why pay for a 3.4Ghz when you can have 3.8Ghz when overclocked ?! Another question: Is dual channel automatically active? (I set on both sides the same ammount of memory how it was described in the mainboard manual) Ok thank you all again :cya:




haribo

kids n grown ups love it so

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2nd August 2005

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#9 13 years ago

Hey, this is kinda off topic but i need to find out , when i go to device manager and look at the processors tab it says: intel pentium 4 cpu 3.2ghz intel pentium 4 cpu 3.2ghz does this mean i have dual processors or that the comp is bein screwy?? sorry again for going off topic any help much appreciated. forgot to mention when i look at the computer tab it says acpi multiprocessor pc sorry if i sound totally dumb but im new to pc`s :uhm:




Cap.Miller

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#10 13 years ago

That doesn't mean u have dual processors, I have my CPU also 2x in, dunno why. I overclocked and used Memtest and everything worked fine. The problem is that I got 533Mhz Ram and I don't know how much I can push it. Because every mhz on the FSB makes 3 Mhz on the Ram. How much can I overclock the Ram? (and I don't have any cooling device for Ram). Got 5 casefans do they help cooling the Ram?! Please help thank u!