max fsb for a DFi Lanparty Nforce4 Ultra-D ?

locutus12

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Oct 13, 2005
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im attempting to get 1000HTT whilst keeping my cpu`s clock at around 2.9Ghz, to do this i need to change the multiplier to 9 and increase the FSB to 333, currently im at a multi of 9.5 and fsb at 305, HTT = 915, i was just wondering if there were any DFi owners left to give me some tips. obviously my rams running on a divider but to be honest i dont quite understand how its calculating the speed for the ram,

fro example, its currently set to a divider of 120, whith an FSB increase from 200 to 305, i would expect the ram to run at 225 (all be it with more volts to stabilise it) but CPUZ says my ram is running at 181... so thats confused me a little too.
 

WobbleWobble

Diamond Member
Jun 29, 2001
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Originally posted by: locutus12
im attempting to get 1000HTT whilst keeping my cpu`s clock at around 2.9Ghz, to do this i need to change the multiplier to 9 and increase the FSB to 333, currently im at a multi of 9.5 and fsb at 305, HTT = 915, i was just wondering if there were any DFi owners left to give me some tips. obviously my rams running on a divider but to be honest i dont quite understand how its calculating the speed for the ram,

fro example, its currently set to a divider of 120, whith an FSB increase from 200 to 305, i would expect the ram to run at 225 (all be it with more volts to stabilise it) but CPUZ says my ram is running at 181... so thats confused me a little too.

When selecting your RAM speeds, you get your ratios. So in your case, you're running it 120MHz when it's normal speeds are 200MHz so that your ratio is 6/10. They're all listed for you in the BIOS.

6/10 * 305Mhz = 183MHz

There are some small variances with clock speeds, so 181MHz instead of 183Mhz is part of that small variance.

I would read the stickied thread on overclocking in the CPU/Processor and Overclocking forum to get a better understanding of the relationships between HTT, FSB, CPU speeds and memory speeds.
 

aigomorla

CPU, Cases&Cooling Mod PC Gaming Mod Elite Member
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Sep 28, 2005
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Originally posted by: locutus12
im attempting to get 1000HTT whilst keeping my cpu`s clock at around 2.9Ghz, to do this i need to change the multiplier to 9 and increase the FSB to 333, currently im at a multi of 9.5 and fsb at 305, HTT = 915, i was just wondering if there were any DFi owners left to give me some tips. obviously my rams running on a divider but to be honest i dont quite understand how its calculating the speed for the ram,

fro example, its currently set to a divider of 120, whith an FSB increase from 200 to 305, i would expect the ram to run at 225 (all be it with more volts to stabilise it) but CPUZ says my ram is running at 181... so thats confused me a little too.

it was listed not to use half multi's They end up rounding your memory up to the next highest value. This can be problematic if you have a high FSB.


I highly doubt your CPU will exceed the DFI LP's Max FSB, unless you intend to use a much lower multi. Even then i doubt your ram will keep up.

1000HTT doesnt give you that much of a performance improvement. I had it, with 1:1 ram timings. Kept it only for 1 week, then i bumped her up to 3.08ghz with a 790HTT, if i remember correctly. Dont be so worried about 1000HTT, you honestly dont see a great improvement over it.
 

locutus12

Member
Oct 13, 2005
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Originally posted by: aigomorla
Originally posted by: locutus12
im attempting to get 1000HTT whilst keeping my cpu`s clock at around 2.9Ghz, to do this i need to change the multiplier to 9 and increase the FSB to 333, currently im at a multi of 9.5 and fsb at 305, HTT = 915, i was just wondering if there were any DFi owners left to give me some tips. obviously my rams running on a divider but to be honest i dont quite understand how its calculating the speed for the ram,

fro example, its currently set to a divider of 120, whith an FSB increase from 200 to 305, i would expect the ram to run at 225 (all be it with more volts to stabilise it) but CPUZ says my ram is running at 181... so thats confused me a little too.

it was listed not to use half multi's They end up rounding your memory up to the next highest value. This can be problematic if you have a high FSB.


I highly doubt your CPU will exceed the DFI LP's Max FSB, unless you intend to use a much lower multi. Even then i doubt your ram will keep up.

1000HTT doesnt give you that much of a performance improvement. I had it, with 1:1 ram timings. Kept it only for 1 week, then i bumped her up to 3.08ghz with a 790HTT, if i remember correctly. Dont be so worried about 1000HTT, you honestly dont see a great improvement over it.



2 words... supreme, commander,

anything i can crank up, is being cranked up, HTT, CPU, graphics, ram, the works. :)
 

cubeless

Diamond Member
Sep 17, 2001
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the little extra u will get from pushing fsb won't help in sc...

u need to drop $120 on a x2 3800 from newegg...

i have same dfi, going much over 300 has never been stable... nbridge runs too hot...

putting the x2 (@2.5) in (replaced a 2.8 ghz opty) made a orders of magnitude difference in sc...
 

aatf510

Golden Member
Nov 13, 2004
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Having 1000HTT is entirely pointless. Tried to lower your rig to stock speed, and do a bunch of test on 600HTT vs. 1000HTT, and then you will see what I mean.