More FSB = More Voltage?

[PCTweaker5]

OK the chip is rated at 1.65V @ 266FSB so does this mean that if I run it at 400FSB that I should increase the voltage?

 

[jhurst]

good luck running it @ 400mhz.

 

[jagec]

Originally posted by: jhurst
good luck running it @ 400mhz.

you kidding, those chips do 400 EASY. FSB means nothing, if your clock speed doesn't change the chip doesn't care WHAT FSB you run at. The RAM does though.

Don't increase the voltage unless you have stability problems.

 

[PCTweaker5]

Can one of these chips stop doing 400FSB all of a sudden though? Cause I upped the FSB to 220 for about a minute and all worked fine but then Prime95 failed but I have excellent cooling so could the chip have been like "awww f*ck" and just stop responding to 200FSB? Thing is Im having stability problems and when I checked each stick of RAM in all slots it works just fine. Im guessing its when they are in dual channel mode that I get this instability but it just started after I had my CPU at 2.4GHz for about a month so...I really dont want to RMA my MB but is there another possibility as to why I may be getting these problems? Could running the FSB of 440 have caused some f*ck ups with the MB and now its slightly unstable because I cool my rig well so there shouldnt be any probs.

 

[otispunkmeyer]

FSB doesnt really affect the CPU as much as it does ram.......ok your overall CPU frequency will go up....but say if u have a thoroughbred core 0.13micron.....then it should be able to handle the extra speed no problem...afterall the faster thorougbreds just have a higher multiplier to give more speed with the same core

FSB how ever is basically like the whole system speed.....increase the FSB u increase the RAM speed and even the PCI and AGP speeds....

pci is 33mhz agp is 66mhz and they are usually calculated as fractions of the cpu or fsb speed i think....any way without a PCI/AGP lock when u fiddle with the FSB u are changing the pci and agp frequencies......some add in cards and graphics cards do not like the extra speed and this usually causes them to stop responding

increaseing FSB increases ram speed and if u havent got quality ram with heat spreaders and good cooling your gonna run into problems.....also u increase the speed at which the northbridge operates...im sure uve seen the tiny HSF they use.....when these chips get too hot ur system will restart and reset speeds to protect itself

when u overclock with the FSB.....u overclock the entire system!!! which is why things start to fail because not all components are capable of working at higher frequences than they are designed too

 

[PCTweaker5]

So instead of leaving the AGP frequency at auto I should set it to 66MHz? Ive done that in the past but never really knew why so I guess its possible that this may be the problem seeing as how these problems started right after I bumped up the FSB. My problems are that FarCry or another game quits to desktop or the PC just restarts randomly but only when both memory sticks are in and they both seem to be OK alone.

 

[Killrose]

I beleive nForce2 locks Pci/AGP bus freq by default to 33 and 66MHz respectively. I know i've inquired about this before in your other post, but have you inspected the capacitors for leakeage or bulged tops? a change in capacitor performance due to this problem could be a reason you cannot get the performance you were used to.

Also don't forget summer is nearly upon us and all temps begin to increase with the warmer weather.

 

[PCTweaker5]

Heat is definately not a factor but should I look at every single capacitor really well because there are tons of little ones too. I did a small inspection a while back with a flash light and didnt see any circumsized caps.

 

[Shimmishim]

very very strange...

12 x 200 is what you're trying to run at right?

what voltage are you running at?


i think you might just need to bump your voltage up.

I needed to run my voltage at 1.85 to get 2.6 ghz stable...

1.75 for 2.5 ghz

and somewhere around 1.65 for 2.4...

so up your voltage to 1.7...

also, what ram voltage you using and what bios?

 

[PCTweaker5]

Actually right now everything is at stock and I still get these problems. I suspected that maybe AIM was the cause of these problems because it only happened when I had it running so I'll try to see what happens. It used to run just fine at 2.4GHz until I started running Prime95, thats when all of these problems originally started. Its at 200x10 at 1.65Vcore and RAM voltage is at a stock of 2.6v with a max rating at 2.9v which I have run at 2.8v for a short moment at 220FSB.

 

[Shimmishim]

what bios version?

 

[PCTweaker5]

no clue, I havent even checked if there were any updates on their site. I guess I should go do that, thanks for the reminder.

 

[PCTweaker5]

OK I updated the BIOS to the latest and all seems fine but the AWDFLASH.EXE will not delete from my desktop no matter what. Ive checked task manager to see if it was in use and have restarted many times so WTF?