FSB : Ram Ratio and Limits of CPU

RollerCam540 said:
Aman: it sounds to me like you don't know why you can't OC your machine farther than you already have. Read this, this will help you determine what is limiting your OC.

There are pro's and con's to buying PC4000 memory:

Cons: you spent more money.

Pros: you can run your machine 1:1.

Post all BIOS settings. What kind of cooling do you have?

What makes you think your computer is unstable at such low FSB's?
Click to expand...

Im just backing up a movie now but as soon as thats finished burning i will get into my bios and post all settings. The mobo is supposed to have a pci/agp(really pci express) lock so i dont know if i have to change that myself. There is also auto performance settings which may be screwing with my system, i dont know the exact names i will go into the bios to see them. i read your guide but i unfortunately cannot change the multiplier on my cpu (stock is 16x). i replaced the stock intel cooler that came with my lga 775 p4 540 3.2ghz cpu with an arctic cooling freezer 7 http://www.arctic-cooling.com/cpu2.php?idx=34&disc=

and its supposed to handle up to 4.4ghz, recently it has made a really weird rattling noise, but temps are the same as before it made the noise. i calculated that i need a psu of at least 339watts and my ultra x-connect is 500W. hopefully that is enough to get you started on guessing, i will post the bios info soon! thanks.
 
Aman said:
Im just backing up a movie now but as soon as thats finished burning i will get into my bios and post all settings. The mobo is supposed to have a pci/agp(really pci express) lock so i dont know if i have to change that myself. There is also auto performance settings which may be screwing with my system, i dont know the exact names i will go into the bios to see them. i read your guide but i unfortunately cannot change the multiplier on my cpu (stock is 16x). i replaced the stock intel cooler that came with my lga 775 p4 540 3.2ghz cpu with an arctic cooling freezer 7 http://www.arctic-cooling.com/cpu2.php?idx=34&disc=

and its supposed to handle up to 4.4ghz, recently it has made a really weird rattling noise, but temps are the same as before it made the noise. i calculated that i need a psu of at least 339watts and my ultra x-connect is 500W. hopefully that is enough to get you started on guessing, i will post the bios info soon! thanks.
Click to expand...

Well not being able to change the multi aint gonna do ya any good cause ya can't really set a higher fsb with a lower multiplier.

That PSU aint that good but it should be able to handle at least some OC'ing!! :)
 
kempez815 said:
Well not being able to change the multi aint gonna do ya any good cause ya can't really set a higher fsb with a lower multiplier.

That PSU aint that good but it should be able to handle at least some OC'ing!! :)
Click to expand...

too bad i was naive and fell with all that bullshit marketing, every website reviewer was saying it was a great psu for looks and quality, ok im gonna go check my bios now, brb.
 
Ok here is the bios info I believe to be pertinent to overclocking, correct me if i am wrong.

under the Advanced tab in bios:

JumperFree Configuration:

Ai Overclocking -manual/auto/standard/overclock profile/ai nos

cpu frequency -[200] can be increased to 300

dram frequency -[400] can be increased as well to i guess my rams limit

pci express frequency -auto/90 up to 150

pci clock syncronization mode -auto/to cpu/33.33mhz

spread spectrum -disabled/enabled/auto

memory voltage -auto/2.6 to 2.9v

chipset core voltage -auto/1.5/1.6v

cpu vcore -1.3875 to 1.5125v in .125 increments

fsb termination voltage -auto/1.2/1.4

AI booster support -enabled/disabled

Advanced Chipset Settings:

config dram timing by spd -enabled/disabled

hyper path 2 -auto/enabled/disabled (memory acceleration mode)

and even though my vcore is set to 1.3875 in bios it shows as 1.424 in the bios, hope this helps, let me know what i got to change to get a stable overclock, thanks guys.
 
Aman said:
Ok here is the bios info I believe to be pertinent to overclocking, correct me if i am wrong.

under the Advanced tab in bios:

JumperFree Configuration:

Ai Overclocking -manual/auto/standard/overclock profile/ai nos

cpu frequency -[200] can be increased to 300

dram frequency -[400] can be increased as well to i guess my rams limit

pci express frequency -auto/90 up to 150

pci clock syncronization mode -auto/to cpu/33.33mhz

spread spectrum -disabled/enabled/auto

memory voltage -auto/2.6 to 2.9v

chipset core voltage -auto/1.5/1.6v

cpu vcore -1.3875 to 1.5125v in .125 increments

fsb termination voltage -auto/1.2/1.4

AI booster support -enabled/disabled

Advanced Chipset Settings:

config dram timing by spd -enabled/disabled

hyper path 2 -auto/enabled/disabled (memory acceleration mode)

and even though my vcore is set to 1.3875 in bios it shows as 1.424 in the bios, hope this helps, let me know what i got to change to get a stable overclock, thanks guys.
Click to expand...

Dunno much about OC'ing Intels...but Jim does...have you checked his thread?

http://www.sysxtreme.com/showthread.php?t=175
 
name='Aman' said:
yeah that guide is good with the basics, i think my cpu is just not gonna overclock, no matter how much money i spend,
Click to expand...

Rubbish man....all CPU's will OC. Maybe the motherboard is holding you back? That's always the thing.

Try upping the voltage a bit to give yourself a bit more headroom! :)
 
kempez815 said:
Rubbish man....all CPU's will OC. Maybe the motherboard is holding you back? That's always the thing.

Try upping the voltage a bit to give yourself a bit more headroom! :)
Click to expand...

yeah its probably the mobo holding you back some mobo's overclock better than others
 
Try the settings like this..

JumperFree Configuration:

Ai Overclocking -manual

dram frequency -leave it

pci express frequency -90

pci clock syncronization mode -33.33mhz

spread spectrum -disabled

memory voltage -leave it

chipset core voltage -auto

cpu vcore -leave it

fsb termination voltage -i have no idea what this is so leave it

AI booster support -disabled

Advanced Chipset Settings:

config dram timing by spd -disabled

hyper path 2 -disabled

Then try upping the FSB again
 
kempez815 said:
Rubbish man....all CPU's will OC. Maybe the motherboard is holding you back? That's always the thing.

Try upping the voltage a bit to give yourself a bit more headroom! :)
Click to expand...

my mobo is not holding me back, its an overclockers board, high quality high cost ASUS p5gdc-deluxe, my psu isnt holdin me back, my ram isnt holding me back, ive sent all the vcore up to 1.6v through the cpu, this cpu will not overclock ore than a few fsb. unless u guys see something about my bios that i should be concerned about. the guid does make sense when it says cpu companies test their product at a speed if it doesnt pass they drop it down, so they wouldnt sell a cpu that could clock 3.8 stable as a 3.2 because that is a loss of profit. thanks/
 
name='Aman' said:
my mobo is not holding me back, its an overclockers board, high quality high cost ASUS p5gdc-deluxe, my psu isnt holdin me back, my ram isnt holding me back, ive sent all the vcore up to 1.6v through the cpu, this cpu will not overclock ore than a few fsb. unless u guys see something about my bios that i should be concerned about. the guid does make sense when it says cpu companies test their product at a speed if it doesnt pass they drop it down, so they wouldnt sell a cpu that could clock 3.8 stable as a 3.2 because that is a loss of profit. thanks/
Click to expand...

how about taking a look in your motherboard manual and looking for some jumpers lol when you install your motherboard you have to take off some jumpers

i dont no i dont have an asus board
 
name='Aman' said:
my mobo is not holding me back, its an overclockers board, high quality high cost ASUS p5gdc-deluxe, my psu isnt holdin me back, my ram isnt holding me back, ive sent all the vcore up to 1.6v through the cpu, this cpu will not overclock ore than a few fsb. unless u guys see something about my bios that i should be concerned about. the guid does make sense when it says cpu companies test their product at a speed if it doesnt pass they drop it down, so they wouldnt sell a cpu that could clock 3.8 stable as a 3.2 because that is a loss of profit. thanks/
Click to expand...

did you even read what i said? lol

just try your bios options like i put them first
 
Austin said:
did you even read what i said? lol

just try your bios options like i put them first
Click to expand...

hey austin, when i left my post yours wasnt up (weird) well i have tried that already, all except for changin the pci express to 90 from auto. doubt that will make much of a difference but i will give it a shot when i get back home on tues. onyl older mobos have jumpers that you need to mess with for overclocking, newer mobos take care of that through the bios (ie. my "jumperfree" bios settings lol). Also my prescott is D0 stepping if that makes any difference. thanks for the input guys!
 
name='Aman' said:
hey austin, when i left my post yours wasnt up (weird) well i have tried that already, all except for changin the pci express to 90 from auto. doubt that will make much of a difference but i will give it a shot when i get back home on tues. onyl older mobos have jumpers that you need to mess with for overclocking, newer mobos take care of that through the bios (ie. my "jumperfree" bios settings lol). Also my prescott is D0 stepping if that makes any difference. thanks for the input guys!
Click to expand...

ah fair enough, hope you can get the overclocking working :)
 
name='Austin' said:
ah fair enough, hope you can get the overclocking working :)
Click to expand...

I have been reading shitloads of articles and some of the reviews of my motherboard have raised some interesting points. My chipset is 915p and I guess the relationship between that chipset which supports both ddr and ddr2 type memory is really shitty with plain old ddr memory. Overclocks have supossedly been able to reach very high fsbs with ddr2 memory but with my asus p5gdc-deluxe have been limited to less than 215fsb. I cant even hit 213fsb stable! Well supposedly when the chipset matures (whatever that means) bios drivers that make it work better are supposed to be released??!! Why the hell wouldn't they have fixed that sort of problem before release? And how long do I have to wait? Im sure this chipset has been out for almost a year, I am frustrated, should I go ahead and buy ddr2 memory or just wait for the chipset to mature and drivers to fix the problem be released? I have 700 dollars worth of overpriced high class corsair ddr memory to get rid of lol. I now have a set of corsair pc4000 pro with the led lights to get rid of, cost me over 400 canadian, i will part with them for 300, i guess i should try ddr2 next, i knew it was a mistake gettin a mobo that had both ddr and ddr2 onboard, err! let me know what u guys think of this situation or if u have heard more, thanks!
 
name='Aman' said:
I have been reading shitloads of articles and some of the reviews of my motherboard have raised some interesting points. My chipset is 915p and I guess the relationship between that chipset which supports both ddr and ddr2 type memory is really shitty with plain old ddr memory. Overclocks have supossedly been able to reach very high fsbs with ddr2 memory but with my asus p5gdc-deluxe have been limited to less than 215fsb. I cant even hit 213fsb stable! Well supposedly when the chipset matures (whatever that means) bios drivers that make it work better are supposed to be released??!! Why the hell wouldn't they have fixed that sort of problem before release? And how long do I have to wait? Im sure this chipset has been out for almost a year, I am frustrated, should I go ahead and buy ddr2 memory or just wait for the chipset to mature and drivers to fix the problem be released? I have 700 dollars worth of overpriced high class corsair ddr memory to get rid of lol. I now have a set of corsair pc4000 pro with the led lights to get rid of, cost me over 400 canadian, i will part with them for 300, i guess i should try ddr2 next, i knew it was a mistake gettin a mobo that had both ddr and ddr2 onboard, err! let me know what u guys think of this situation or if u have heard more, thanks!
Click to expand...

Anyone? Im finding it hard to get more info on this, thanks.
 
name='kempez815' said:
You could just buy another motherboard instead of DDR2? :)
Click to expand...

Yep, I recommend the DFI Lanparty 875P-T :D Only because I've had first hand experiences with it and know how great it is!
 
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