Overclocking P4 mPGA-478
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From: Doc on 26 Jul 2006 14:13 Curious how much overclocking can be done on this CPU. It's sitting on a Soyo SY-P41865PE Dragon 2 V1.0 This guy: http://www.gmon.com/tech/p4-overclock.html got it up to 2.8ghz on a different mobo. I dunno, I guess a 400mhz boost doesn't seem all that much when you're already running at 2.4gig. Would you consider that a significant amount? Is that about all you're going to get out of this CPU? Having never fooled with overclocking before, wondering how it effects the usability of the computer. Doesn't do much good if it's constantly locking/crashing. Apparently one has to adjust voltages on the mobo to accomplish this. The manual for this motherboard doesn't mention anything about this that I can see. Is this going to be a physical switch or jumper somewhere or done in software? Any suggestions for "absolutely read this before attempting to overclock" sites you can recommend? Thanks.
From: Phil Weldon on 26 Jul 2006 15:47 'Doc' wrote, in part: | Curious how much overclocking can be done on this CPU. It's sitting on a | Soyo SY-P41865PE Dragon 2 V1.0 | | This guy: | | http://www.gmon.com/tech/p4-overclock.html | | got it up to 2.8ghz on a different mobo. I dunno, I guess a 400mhz boost | doesn't seem all that much when you're already running at 2.4gig. Would you | consider that a significant amount? Is that about all you're going to get | out of this CPU? _____ What CPU? Your post does not identify the CPU. P4 mPGA-478 just identifies the socket type. Identification of the CPU would be a spec number like SL6WS or a description like 'Northwood' Pentium 4 2.6 GHz with a 400 MHz FrontSide Bus speed. Also, please put all information in the body of the post, do not put key information ONLY in the subject line. All Pentium CPUs can be overclocked; some do better than others. 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 transplanted back and forth among several languages, 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 transferred 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 eventually 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. 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 de
From: John Doe on 26 Jul 2006 17:57 When you are just curious about overclocking, cross posting to the home built PC group isn't necessary (neither are your other regular cross posts). Path: newssvr27.news.prodigy.net!newsdbm04.news.prodigy.com!newsdst01.news.prodigy.net!prodigy.com!newscon04.news.prodigy.net!prodigy.net!newshub.sdsu.edu!elnk-nf2-pas!newsfeed.earthlink.net!stamper.news.pas.earthlink.net!newsread4.news.pas.earthlink.net.POSTED!2c32b41c!not-for-mail From: "Doc" <docsavage20 xhotmail.xom> Newsgroups: alt.comp.hardware.pc-homebuilt,alt.comp.periphs.mainboard,alt.computer.workshop,alt.comp.hardware.overclocking Subject: Overclocking P4 mPGA-478 Lines: 28 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1409 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 Message-ID: <yhOxg.309$0e5.181 newsread4.news.pas.earthlink.net> Date: Wed, 26 Jul 2006 18:13:50 GMT NNTP-Posting-Host: 4.235.42.41 X-Complaints-To: abuse earthlink.net X-Trace: newsread4.news.pas.earthlink.net 1153937630 4.235.42.41 (Wed, 26 Jul 2006 11:13:50 PDT) NNTP-Posting-Date: Wed, 26 Jul 2006 11:13:50 PDT Organization: EarthLink Inc. -- http://www.EarthLink.net Xref: prodigy.net alt.comp.hardware.pc-homebuilt:472105 alt.comp.periphs.mainboard:7770 alt.computer.workshop:12222 alt.comp.hardware.overclocking:384374 Curious how much overclocking can be done on this CPU. It's sitting on a Soyo SY-P41865PE Dragon 2 V1.0 This guy: http://www.gmon.com/tech/p4-overclock.html got it up to 2.8ghz on a different mobo. I dunno, I guess a 400mhz boost doesn't seem all that much when you're already running at 2.4gig. Would you consider that a significant amount? Is that about all you're going to get out of this CPU? Having never fooled with overclocking before, wondering how it effects the usability of the computer. Doesn't do much good if it's constantly locking/crashing. Apparently one has to adjust voltages on the mobo to accomplish this. The manual for this motherboard doesn't mention anything about this that I can see. Is this going to be a physical switch or jumper somewhere or done in software? Any suggestions for "absolutely read this before attempting to overclock" sites you can recommend? Thanks.
From: Rod Speed on 26 Jul 2006 18:17 You get no say what so ever on what is necessary, ever. And quoting the entire headers is completely unnecessary. John Doe <jdoe(a)usenetlove.invalid> wrote: > When you are just curious about overclocking, cross posting to the > home built PC group isn't necessary (neither are your other regular > cross posts). > > > Path: > newssvr27.news.prodigy.net!newsdbm04.news.prodigy.com!newsdst01.news.prodigy.net!prodigy.com!newscon04.news.prodigy.net!prodigy.net!newshub.sdsu.edu!elnk-nf2-pas!newsfeed.earthlink.net!stamper.news.pas.earthlink.net!newsread4.news.pas.earthlink.net.POSTED!2c32b41c!not-for-mail > From: "Doc" <docsavage20 xhotmail.xom> > Newsgroups: > alt.comp.hardware.pc-homebuilt,alt.comp.periphs.mainboard,alt.computer.workshop,alt.comp.hardware.overclocking > Subject: Overclocking P4 mPGA-478 > Lines: 28 > X-Priority: 3 > X-MSMail-Priority: Normal > X-Newsreader: Microsoft Outlook Express 6.00.2800.1409 > X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 > Message-ID: <yhOxg.309$0e5.181 newsread4.news.pas.earthlink.net> > Date: Wed, 26 Jul 2006 18:13:50 GMT > NNTP-Posting-Host: 4.235.42.41 > X-Complaints-To: abuse earthlink.net > X-Trace: newsread4.news.pas.earthlink.net 1153937630 4.235.42.41 > (Wed, 26 Jul 2006 11:13:50 PDT) > NNTP-Posting-Date: Wed, 26 Jul 2006 11:13:50 PDT > Organization: EarthLink Inc. -- http://www.EarthLink.net > Xref: prodigy.net alt.comp.hardware.pc-homebuilt:472105 > alt.comp.periphs.mainboard:7770 alt.computer.workshop:12222 > alt.comp.hardware.overclocking:384374 > > > Curious how much overclocking can be done on this CPU. It's sitting > on a > Soyo SY-P41865PE Dragon 2 V1.0 > > This guy: > > http://www.gmon.com/tech/p4-overclock.html > > got it up to 2.8ghz on a different mobo. I dunno, I guess a 400mhz > boost > doesn't seem all that much when you're already running at 2.4gig. > Would you > consider that a significant amount? Is that about all you're going to > get > out of this CPU? > > Having never fooled with overclocking before, wondering how it > effects the > usability of the computer. Doesn't do much good if it's constantly > locking/crashing. > > Apparently one has to adjust voltages on the mobo to accomplish this. > The > manual for this motherboard doesn't mention anything about this that > I can > see. Is this going to be a physical switch or jumper somewhere or > done in > software? > > Any suggestions for "absolutely read this before attempting to > overclock" > sites you can recommend? > > Thanks.
From: Doc on 27 Jul 2006 08:13
"Phil Weldon" <notdiscosed(a)example.com> wrote in message news:lFPxg.4961$bP5.634(a)newsread1.news.pas.earthlink.net... > #1. Raising the CPU voltage can destroy your CPU. NEVER raise the CPU Thanks for the extremely detailed response. |