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Overclocked P4 2.4 - Page 3

post #21 of 29
Quote:
Originally Posted by Ropey
Yes, you can cool the PWM MOSFET's. First though, any MOSFETs are extremely static sensitive. Be careful handling them and do not touch them with your fingers as the transfer of body oil to the MOSFET will lower the life expectancy.

When you affix the heatsink to the MOSFET Remember to NOT use Epoxy unless you never intend on removing the sink for reuse on another computer. You will destroy the MOSFET with Epoxy removal.

Here's some retail ones that will save you from using a dremel

http://www.case-mod.com/store/cooler...lue-p-947.html

I use a Zalman 7700cnps cu on both the Intel systems I have as they give great airflow around the MOSFET's. There are better CPU coolers but these ones do both a good job on the CPU and the surrounding area.


R
thanks..how can i identify for sure which ones are the pwms.. and do i use as5 on them as well and since i would never plan on reusing them how do i make it a perm. mod.. im gonna order a set of these really quick.. thanks again
    
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post #22 of 29
They are always very close to the CPU for stability purposes and I would just heatsink any MOSFET around the CPU. Usually I have found them on to the back side of the CPU.

It's all good and they look good on the board as well.

I would use Arctic Silver Ceramique on them if you plan not to remove them.

R
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post #23 of 29
Quote:
Originally Posted by Ropey
They are always very close to the CPU for stability purposes and I would just heatsink any MOSFET around the CPU. Usually I have found them on to the back side of the CPU.

It's all good and they look good on the board as well.

I would use Arctic Silver Ceramique on them if you plan not to remove them.

R

so basicly any little squar chip lookin thing near the cpu.. stick it on those.. okay cool.. thanks for the site.. they had tons of stuff

1 x Cooler Master SAC-P01 Little Chipset Cooler - Blue (91-SAC-P01-UB) = $5.95
1 x El Wire - Blue () = $6.99
1 x 12in Dual Cold Cathode - UV () = $4.99
1 x Cable Sleeving Kit - UV Sensitive Green () = $7.49
1 x ATA-133 - 18in (Single Device) - UV Silver () = $4.74
1 x ATA-133 - 18in - UV Sensitive - Silver () = $2.25
1 x Vantec Slot Protector Kit - UV Blue () = $4.99
1 x Arctic Siver Ceramique Thermal Compound 2.5g (CERAMIQUE) = $4.49


um.. your a bad influence.. grin.. again thanks for the info.. once i get these pwms cooling down im sure ill hit 4ghz stable.. i hope.. thats my goal anyway
    
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post #24 of 29
Quote:
Originally Posted by Trippen Out

um.. your a bad influence.. grin.. again thanks for the info.. once i get these pwms cooling down im sure ill hit 4ghz stable.. i hope.. thats my goal anyway
Nice stuff You've got a great CPU. I think you may make the 4.0GHz which is no mean feat on that form factor.

R
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post #25 of 29
Quote:
Originally Posted by Ropey
Nice stuff You've got a great CPU. I think you may make the 4.0GHz which is no mean feat on that form factor.

R

thats my goal.. i just booted in to windows and writting this post at 3963mhz ... that is as fas as i could push it .. i upped the voltage to 1.535 or something like that.. i tried to boot in at 4014 got to the windows screen almost finished booting xp..and bam reset.. so i upped the voltage to what it is at now.. and when i rebooted i got a bios checksum error or something like that.. please insert floppy into drive A: .. i have no clue what this is or why it is.. any help would be great.. cpu is at 36 idle.. case 28 but the pwm is at 41 idle.. im hoping after i get those heatsinks i can load it down and see if the heat holds..
    
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post #26 of 29
If system shows “BIOS Checksum Error” on boot-up screen, usually you can rescue the BIOS using following procedure:
  1. Prepare a (scanned for errors)bootable floppy diskette.
  2. Copy the flash utility "AWDFLASH.exe" and the BIOS file "XXXXXXXX.bin" onto that floppy diskette. The flash utility might have another name.
  3. Insert the floppy diskette into floppy drive (FDD).
  4. Boot the system from FDD.
  5. The BIOS should rescue itself after processing this procedure.
You can shut the system off first and wait a few minutes, press the <Insert> key and start the system. When you see a boot light start on the Monitor let go of the <Insert> key and press your BIOS entry key <del>.

Be careful when you get such an error as there have been instances of BIOS errors that can not be recovered and as such the only methods then are BIOS chip replacement or BIOS Hot Swap.

R
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post #27 of 29
Quote:
Originally Posted by Ropey
If system shows “BIOS Checksum Error†on boot-up screen, usually you can rescue the BIOS using following procedure:
  1. Prepare a (scanned for errors)bootable floppy diskette.
  2. Copy the flash utility "AWDFLASH.exe" and the BIOS file "XXXXXXXX.bin" onto that floppy diskette. The flash utility might have another name.
  3. Insert the floppy diskette into floppy drive (FDD).
  4. Boot the system from FDD.
  5. The BIOS should rescue itself after processing this procedure.
You can shut the system off first and wait a few minutes, press the <Insert> key and start the system. When you see a boot light start on the Monitor let go of the <Insert> key and press your BIOS entry key <del>.

Be careful when you get such an error as there have been instances of BIOS errors that can not be recovered and as such the only methods then are BIOS chip replacement or BIOS Hot Swap.

R
any ideas on what would cause it.. with abit.. normally with any error like that or it just wont post.. flipping the power switch in the back and wait a few seconds defualt the bios settings for the cpu as a safty precaution.. a lot of people may like asus and what not better.. but abit has always been an oc'ers friend like that
    
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post #28 of 29
Quote:
Originally Posted by Trippen Out
any ideas on what would cause it
A checksum is computed as an error-detecting code on boot and is done so to protect the BIOS settings stored in the CMOS memory. Each time the system is booted this number is recomputed and checked against the stored value. If they do not match, an error message is generated to tell you that the CMOS memory contents may have been corrupted and therefore some settings may be wrong.

Different BIOS's react in different ways when encountering error event. Some will warn the user and then continue on with whatever settings were in the CMOS. Others will assume that the settings that were in the CMOS were corrupted and will load default values stored in the BIOS chip "for safety reasons". The error message will indicate which your system is doing.

As I previously mentioned, when you get an error such as this it means basically "DO NOT GO ANY FURTHER, BACK DOWN!" It is a result of an overclock that is very very (did I mention it is VERY) unstable or a bad battery.

R
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post #29 of 29
Quote:
Originally Posted by Ropey
A checksum is computed as an error-detecting code on boot and is done so to protect the BIOS settings stored in the CMOS memory. Each time the system is booted this number is recomputed and checked against the stored value. If they do not match, an error message is generated to tell you that the CMOS memory contents may have been corrupted and therefore some settings may be wrong.

Different BIOS's react in different ways when encountering error event. Some will warn the user and then continue on with whatever settings were in the CMOS. Others will assume that the settings that were in the CMOS were corrupted and will load default values stored in the BIOS chip "for safety reasons". The error message will indicate which your system is doing.

As I previously mentioned, when you get an error such as this it means basically "DO NOT GO ANY FURTHER, BACK DOWN!" It is a result of an overclock that is very very (did I mention it is VERY) unstable or a bad battery.

R
well then it is an old board maybe its the battery.. evilgrin.. so basicly its not the ram.. its not cpu.. umm.. its not the heat ??? basicly its the board itself and that would be the limit.. so at this point.. i should just work the pwm heat problem and go for stability.. 3.96 is pretty damn close to 4.0.. considering its processer ive had for a long time and was expecting to pay tons of money upgrading to something that fast anyway i saved a few dollars and got a really good oc out of it.. im content..
    
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