FSB question????

[Drak55]

XP2200 unlocked i try to keep it just under 2gigs 1991 to be exact. A7V333 MOBO and just got some corsair 512mb pc3200XMS I had mushkin pc2100 Black. I went from 160FSB 12.5X 1.850V that was max. now with the new 3200 I can hit MUCH higher FSB. it will boot up at 10x 195FSB but I get some dots and line flickering would my vid card be the problem?

leadtec mx440 g4A170

 

[timmyqwest]

I dunno, i'm fairly new to first hand overclocking but heres a few questions

Does your motherboard lock the AGP speed?
Is your vid card overclocked?
Is your H/S on your vid card in working order?

and one last thing, what do you mean by "i try to keep it under 2 gigs" as if...more then 2 gigs is bad? or as if it wont run over 2 gigs but i get it as close as i can

 

[glock19owner]

Sounds like the AGP Mhz is getting to far out of wack for the VC to handle that high...your board only has a 5/1 divider...so around 190 or so the Mhz will be getting to high for most hardware...

 

[Drak55]

I dunno, i'm fairly new to first hand overclocking but heres a few questions

Does your motherboard lock the AGP speed?
Is your vid card overclocked?
Is your H/S on your vid card in working order?

and one last thing, what do you mean by "i try to keep it under 2 gigs" as if...more then 2 gigs is bad? or as if it wont run over 2 gigs but i get it as close as i can

1 dont know
2 no
3 yes

and to much past 2gigs and this chip flips out so I keep it under 2gigs

 

[Drak55]

Sounds like the AGP Mhz is getting to far out of wack for the VC to handle that high...your board only has a 5/1 divider...so around 190 or so the Mhz will be getting to high for most hardware...

I think the divider is set 1:1

 

[glock19owner]

Talking about the AGP/PCI divider...not the memory divider

 

[timmyqwest]

Talking about the AGP/PCI divider...not the memory divider

yea, i really think what is happening here is that your AGP is running too high and your videocard is having a ***** fit...

lower the FSB and crank up the multiplier bud sorry...i bet your prob goes away

if not, come back and ask away

 

[Drak55]

Talking about the AGP/PCI divider...not the memory divider

I have no clue what that is set to. the only settings I ever touch is the FSB the multi and the Vcore.

 

[glock19owner]

There is not setting in the BIOS...this is automatic...the divider will kick in after a certain FSB setting...since your board only has up to a 5/1 divider...it will kick in after 166FSB...and what this does is puts your AGP/PCI Mhz back to 33Mhz so they run in specs...but since your board does not support a 6/1 (200FSB)...your Mhz will not be able to drop down to 33Mhz to keep your AGP/PCI in specs...so when you start to see the white spots your AGP is running too high in Mhz for your card to handle it...

 

[juliendogg]

i got one tip that can help,
when you're agp frequency gets a bit to high for the vid card to handle, boosting up the agp driving value in bios can help get rid of those lil' green meanies.
be careful with this, and don't set it too high, the recomended value for heavily overclocked systems is EA, this is slightly higher signal to the agp bus than the default setting of DA.
give it a try, i think you'll find it helps. i'm surprised more people don't know about this, it really works

 

[timmyqwest]

I have no clue what that is set to. the only settings I ever touch is the FSB the multi and the Vcore.

Your AGP runs off of your FSB, thus you turn the FSB up you turn the AGP up.

Newer boards (for the most part) allow you to lock the AGP at 66mhz but i dont think your board does