Troubleshooting: What is holding me back?

[REDKEN]

( For the system on my signature)

My goal is 292 FSB 5:4 3D stable. Right now, I’m at 278 FSB but I should be hitting my goal but don't know why.

MEM (BH-5) = Can do 250 FSB 1:1 DDR500 (3.4 vdimm) 2,2,2,5and can probably do more with more voltage. Using loose timmings has only a marginal effect.

CPU = Can do 300 FSB 3:2 3.60 ghz (1.65 vcore) It has the Droop mod.

NB = Same as the CPU. It has the Vagp mod done and i have taken it up to 1.98v

So...If for example I set the FSB to 280 5:4 it puts my CPU to 3.36ghz and the RAM to 226 FSB which is way below what they can do. I can't raise the FSB any higher or it will crash or freeze or reboot while testing on 3Dmark01 (for example). Giving more or less voltages seem to be useless.

What is holding me back? CPU, NB or MEM?

Mem timmings and CPU O/C are set manually in Bios, almost everything else is at "auto" right now and have tried different settings and Bios (1014,1016,1017b,1018.004b,1018)

P.S. CPU, NB and GPU are watercooled.

[enzoR]

are you useing the 3:2 divider?

[REDKEN]

are you useing the 3:2 divider?
No, I'm using the 5:4 right now

[enzoR]

mod vnorth

[REDKEN]

mod vnorth
Already done. In this board it's the same as the Vagp

[enzoR]

oh damn... no its not ;)

on this board its the same as Vcore :)

[REDKEN]

oh damn... no its not ;)

on this board its the same as Vcore :)

Could you explain a bit more :confused: It has been my understanding from reading various forums that the NB is linked to the agp

[enzoR]

nope, they got it wrong. the asus P4C uses the vcore as vnorth aswell. thats what Hipro5 found... try increasing your vcore and see

[masterofpuppets]

The vagp is linked to the nb on Abit motherboards afaik.

[REDKEN]

Isn't the vcore used on prescott's to get them above 1.60 because of the OVP?
I'm searching but there is no abundant information on this mod.

P.S.: I don't see a point to this mod anyways because for Northwoods the highest Vcore should be 1.7v and on Prescotts 1.55-1.60

[REDKEN]

I PM'ed Hipro5 and this is what he had to say:



Hi
Could you please take a look at this (http://www.xtremesystems.org/forums/showthread.php?p=561504&posted=1#post561504) thread.
Or PM me the question to this:

In the P4C800E-D were do I regulate the NB voltage?
Is it Vcore or Vagp?

Thank You! :toast:

Vchip(Northbridge) on an ASUS P4C800 series IS the VCore......They feed it through VCore.....The more you feed your CPU with VCore , the more you feed your North too.... ;)

I didn’t doubt you enzoR. I just wasn't finding a lot of information on this mod. So...I contacted hipro5.

I still don't understand the "benefits" of this mod.

[enzoR]

the benifits of which mod? vagp? thats simply cuz vagp also enters the northbridge, as does vmem....

[REDKEN]

the benifits of which mod? vagp? thats simply cuz vagp also enters the northbridge, as does vmem....
The vcore mod

[REDKEN]

What would be the best way to feed the NB with more volts?

Sorry this is new to me. As I said before I always thought that the Vagp was linked to the NB

[enzoR]

y do u need a vcore mod?

how high does the bios go?

[REDKEN]

y do u need a vcore mod?

how high does the bios go?

I don't really need a vcore mod that is why I don't understand the benefits of this mod. As it is now the Bios gives me more than enough (close to 1.9v but not sure now).
I just want to get more volts to the NB.

[enzoR]

increase vcore in bios then ;)

[Gogeta]

But if one wanted to supply the NB with more volts than the vcore can, is there a mod for this? Also, if vagp on the P4C800 doesn't feed the NB, does it actually feed the agp slot? LOL...that would be the first time I've ever seen "Vagp" correctly labeled in the BIOS.

[enzoR]

vagp is just the "magnitude" of the agp signals. highervoltage will give it a clearer signal as it will lower the signal:noise ratio. i dont think u can supply the NB with more v's than the vcore can. not sure.... hipro would know :D