Archived from groups: alt.comp.hardware.overclocking (
More info?)
He apologises for existing and wasting your time.
"Phil Weldon" <notdiscosed@example.com> wrote in message
news:7X0Te.7339$_84.6784@newsread1.news.atl.earthlink.net...
> 'potnisanish' wrote:
> | Please?
> |
> | I have a pentium 4 2.66 Ghz 533 MHz FSB
> |
> |
> | I don't have the slightest idea of how to do this. when I press del at
> | the place where your supposed to press it I go to the blue screen, then
> | I select clock speed and voltage, then it says my clock speed is
> | 133...huh? What do I do?
> _____
>
> A whole lot of people who have no idea of how to overclock have been
> successful in overclocking. If the motherboard is 'overclocking
> friendly', an Intel CPU is very easy to overclock. If the motherboard is
> NOT 'overclocking friendly' the task is much more difficult. If your
> motherboard is 'overclocking friendly' the manual likely gives all the
> information necessary to overclock, though the manual may have been
> translanted back and forth among several languanges, and the information
> may be a bit confusing.
>
> #1. Raising the CPU voltage can destroy your CPU. NEVER raise the CPU
> voltage more than 15%, and if you do raise it, do it in very small steps.
>
> #2. Raising the CPU clock speed will NOT damage your Intel CPU,
> motherboard, memory, or anything else. If you raise the clock speed too
> much, the system will either to run in a stable manner, or will fail to
> boot. This is not a problem because either the BIOS will automatically
> reset to default values or there will be directions in the manual on how
> to reset to default speeds.
>
> #3. In overclocking, make any changes in small steps, checking for proper
> operation after each change.
>
> #4. Overclocking works best when the CPU temperature is kept as low as
> possible.
>
> #5. Intel CPUs can ONLY be overclocked by raising the clock speed. Even
> if the multiplier can be set in the BIOS, changing this settings has NO
> effect.
>
> #6. Some older motherboards may report an incorrect speed for CPUs that
> have a higher speed than available when the BIOS was installed.
>
> #7. Intel CPUs have a quad-pumped memory bus; that means data is
> transfered four times for each clock cycle; for a 533 MHz Frontside Bus
> speed the clock speed is 133 MHz. That 133 MHz clock speed is multiplied
> by a factor FIXED and UNCHANGABLE inside the CPU to give the overall CPU
> clock speed. For your 2660 MHz CPU, the multiplier is X 20 (133 MHz X 20
> = 2660 MHZ.)
>
> #8. The rated speed of the installed memory can limit the overclock.
> Memory can be overclocked, but it will eventualy reach a limit. Faster
> memory can be installed, but the cost may not be worth it. The memory
> clock can be set to a lower ratio (with some motherboards) to allow higher
> clock speeds, but there is a performance penalty.
>
> A reasonable goal for your CPU is 3.33 GHz. With luck and good cooling
> over 3.5 GHz should be possible.
>
> How you overclock depends on the specifics of your system, how much
> patience you have, and much attention you pay to details.
>
> A general approach:
>
> * Download and install MotherBoard Monitor 5 (free) at
> http://mbm.livewiredev.com/ . This will allow you to monitor and
> record the CPU speeds, fan speeds, CPU temperature (and perhaps
> motherboard, memory, and other temperatures, and voltages.)
>
> * Download and install SiSoft Sandra (free) at
> http://www.sisoftware.net/ . This program is a collection of
> information gathering applets for your system. It also has low level
> tests of performance, as well as stress tests (necessary to establish
> proper operation when the CPU is operating at full capacity. I find
> version 2004 more useful than 2005, but 2004 is hard to find now.
>
> * Use MotherBoard Monitor 4 and SiSoft Sandra because the vast majority of
> the people who use this forum also use these applications
>
> * Read the manual carefully.
>
> * Clean the heatsink fins, and fans of all dust, grease, and dirt.
>
> * Write down the settings in the BIOS.
>
> * Write down the temperature and voltage information from SiSoft Sandra.
>
> * Check the voltages reported by MotherBoard Monitor 5 for you system. If
> any are outside the specifications this may affect the operation of your
> system, especially if it is overclocked. Also check the total rated
> output of your power supply, if it is marginal, overclocking (since more
> power is required) may also be marginal.
>
> * Steps for overclocking your Intel CPU (only after completing the above
> recommendations):
>
> #0. The standard setup for PCI bus and AGP bus speeds are fractions of
> the clock speed. Make sure the PCI/AGP Bus speeds are instead locked at
> 33 MHz/67 MHz; if the PCI bus speed is more than 36 MHz corruption of data
> on your hard drives can occur.
>
> #1. Increase the clock speed by 5%.
>
> #2. Reboot and check for operation.
>
> #3. If #2 is successful, repeat #1.
>
> #4. If #2 is not successful, raise the CPU core voltage by 0.05 volts
> (in NO case raise this voltage to more than a total of 15%, doing so may
> instantly destroy your CPU; when the core voltage reaches this limit go to
> #6.)
>
> #5. Go to #2.
>
> #6. You have reached the limit of overclocking without changing other
> factors which may include CPU cooling, System cooling, memory settings.
> Installing memory capable of higher clock speeds may help. On the other
> hand, some of these changes may be expensive, and not worth the money for
> the possible performance increase.
>
>
> * After reaching the highest speed, check operation under full CPU load
> (use SiSoft Sandra burn-in, other burn-in programs, or intense action 3D
> accelerated first-person shooter games.) If the system is not stable
> under heavy load, try reducing the clock speed and/or CPU core voltage
> (higher voltage means higher operating temperatures.)
>
> * Check the installation of the CPU heatsink; new heatsink compound may
> help CPU cooling.
>
> * A better than stock heatsink/fan may aid overclocking.
>
> * Improved system cooling may aid overclocking.
>
> * Exotic cooling of the CPU to room temperature or below can
> significantly increase top speeds (or not, depending on the individual CPU
> speed, memory quality, and motherboard.)
>
> WARNINGS!!!
> * Increasing the CPU voltage above 15% over specifications is likely to
> INSTANTLY destroy the CPU
> * There is always a chance that when you start fooling around inside the
> system case of your computer that you may cause damage (the butterfinger
> factor.)
>
> You can find a LOT of additional information on the Internet, including
> the speeds that others overclockers have reached with your model CPU. One
> question you must ask yourself is WHY you wish to overclock; I can think
> of three reasons:
>
> #1. Higher performance at little or no expense with your present
> system.
>
> #2. Just because you can, and enjoy experimenting
>
> #3. Bragging rights - the highest possible speeds (which is going to
> require a LOT more money.
>
> Don't let this long list intimidate you; just go along step by step.
>
> I am posting this on a system using
> aBit TH7-II (Intel 850 chipset) motherboard
> Pentium 4 2.6 GHz 400 MHz FSB Northwood CPU
> PC800 RDRAM 640 MBytes
> Stock CPU cooling
> 450 Watt Antec Power Supply
>
> I selected a clock speed in the BIOS of 121 MHz, giving a CPU speed of 121
> MHz X 26 = 3146 MHz. The CPU will overclock to a higher speed, but the
> memory will not. To reach a higher CPU speed requires setting the memory
> clock/CPU clock ratio to other than 1, which reduces performance. Since I
> just want improved AND reliable performance and not the highest possible
> clock speed, 3146 suits me fine, though with async setting 3.5 GHz is
> easily reached.
>
> Good luck.
>
> Phil Weldon
>
>
>
>
> <potnisanish@gmail.com> wrote in message
> news:1125941211.686417.152270@z14g2000cwz.googlegroups.com...
>> Please?
>>
>> I have a pentium 4 2.66 Ghz 533 MHz FSB
>>
>>
>> I don't have the slightest idea of how to do this. when I press del at
>> the place where your supposed to press it I go to the blue screen, then
>> I select clock speed and voltage, then it says my clock speed is
>> 133...huh? What do I do?
>>
>
>