Next safest FSB after 133?

[ugh]

Hi all,

Anyone knows the safest FSB after 133? One that's closest to running at spec i.e. 66AGP/33PCI?

TIA

 

[THUGSROOK]

166

 

[ugh]

Ouch... That's a bit too high. Any lower one? It need not necessarily be at exact spec...

 

[zzzz]

depends on the mobo. I think Abit TH7-2( also BD7?) and Asus P4T-E have a feature to lock the pci at 33 and agp at 66 so any fsb is safe!

 

[ugh]

<< depends on the mobo. I think Abit TH7-2( also BD7?) and Asus P4T-E have a feature to lock the pci at 33 and agp at 66 so any fsb is safe! >>



Whart?!? Man... Didn't know there's such a feature!! Anyway, I'm using a EP-8KHA+. Any ideas?

 

[ugh]

Bump....

 

[imgod2u]

No, those boards lock the AGP and PCI when the frequency gets too unstable, it automatically knocks the FSB back down.

 

[Plester]

once you are over 133, the 1/4 pci divider kicks in and the 1/2 agp is always in effect. anything between 133 and 150 is safe, do the math - 150 = 37.5mhz pci, 75mhz agp - you would be hard pressed to find modern components that would have issues w/ those speeds. the high 130s and low 140s are great places to run your board.

the issue becomes what your ram is capable of and if you have any super sensitive devices. i had a canopus dvraptor (higher-end dv-capture card) that didn't like the pci bus out of spec at all. also usb can be a consideration i know it can get funky at higher fsb. older agp vid cards can be finicky too. again tho, under 150 and you would have to go out of your way to find stuff that would have issues.

 

[Bulk Beef]

Uhhhh, 134 maybe?

 

[bsauerbr]

Do I hear 135?

Download CPUCOOL and let it detect your clock chip. Then in the "Change FSB" screen, you can click through all the available FSB's. Click "Set Frequency" and you can play around with FSB's in s/w. Then set it permanently in BIOS or with jumpers if your mobo allows when you find a stable one.

 

[THUGSROOK]

was i being too literal with my 166 answer?

hehe, ok you can run into the mid to high 140s w/o problems.
like plester said, youd have to go out of your way to find stuff that wont work at that speed.

 

[ShinSa]

<< was i being too literal with my 166 answer?

hehe, ok you can run into the mid to high 140s w/o problems.
like plester said, youd have to go out of your way to find stuff that wont work at that speed.

>>



No, that's the same answer I would've gave. Unless you can get a mobo that clocks the ram asynchronously. I beleive the Iwill can do this.

 

[ShinSa]

<< was i being too literal with my 166 answer?

hehe, ok you can run into the mid to high 140s w/o problems.
like plester said, youd have to go out of your way to find stuff that wont work at that speed.

>>



No, that's the same answer I would've gave. Unless you can get a mobo that clocks the ram asynchronously. I beleive the Iwill can do this. but then again, it's proven that it drags performacne down so...

 

[Richardito]

<< depends on the mobo. I think Abit TH7-2( also BD7?) and Asus P4T-E have a feature to lock the pci at 33 and agp at 66 so any fsb is safe! >>



A dynamic divider? I don't think that exists yet...

 

[JameyF]

<< Uhhhh, 134 maybe? >>



If we're doing multiple choice, I choose this one. The question seems a bit tricky though. In school, I always got the simple ones wrong

 

[BeauJangles]

Just pump it up to 140 and see what happens. If your computer is unstable clock it back down. It's easy. There is no 'safe' FSB, there are just standards (ie 100 mhz, 133, 166, and so on). I can run my system at 159 mhz FSB which puts my CPU at 1749 mhz, or off the PR scale

 

[ugh]

<< Just pump it up to 140 and see what happens. If your computer is unstable clock it back down. It's easy. There is no 'safe' FSB, there are just standards (ie 100 mhz, 133, 166, and so on). I can run my system at 159 mhz FSB which puts my CPU at 1749 mhz, or off the PR scale >>



Last time I tried some weird FSB, my CD writer didn't want to work and I was worried that my PCI/AGP bus was terribly out of spec. Just want to know more b4 I do it on my new system