Northwood 1.8@1.88, IS THIS POSSIBLE?!?!??! HELP!!!

[Acanthus]

1st things 1st

Enermax 650w
P4 northwood 1.8
Sound Blaster Live! OEM
Corsair 128MB PC2100DDR (2)
NVIDIA Geforce 3 Ti500 (known to work at 163mhz on a 2/3 divider, so its not pci overclock problem)
Asus P4B266-C

Yes the 12v rail is plugged in
There is also a standard molex connector on the board, i have that connected as well, no clue what it does

This rig will not go over 105mhz fsb without freezing during post

The cooling is AS3 with a Thermaltake Volcano-478

All voltage settings from 1.5 to 1.7 have been tried, still peaks at 105fsb regardless, i can sometimes get boot at 107 with severe system hangs during post.

Thank you all in advance.

 

[Danzilla]

<< Yes the 12v rail is plugged in
There is also a standard molex connector on the board, i have that connected as well, no clue what it does >>



You probably shouldn't have the extra voltage input connected. It's intended for use with older power supplies that don't come with a P4 power connector.

 

[Acanthus]

ok did that, saw strong increases in voltages across the board, no matter what i set the vcore to, i still cant get stability, at the 1.70 setting im getting 1.70-1.74, and the 12v rail is running at 11.39v, the +5v is at 5.1.

 

[Uclagamer_99]

maybe your chip just doesn't go any higher

 

[AndyHui]

650W power supply? Isn't that excessive?

 

[F155mph]

Check your rams, maybe one of them is bad.

 

[jiffylube1024]

Umm... did you mean to type 350W in the keypad and accidentally hit 6 instead?

 

[Acanthus]

It is, in fact 650w, it was used to power peltiers in the past.... So the power supply definitly isnt the issue. Both DDRs are PC2100 CL2, ive tried removing each one and running them singular, i can get a post even at 2.4ghz but it always freezes during memory testing, im trying a corsair 256MB PC2700DDR DIMM now, although it shouldnt make a diff, it might...

 

[sigmatic]

The only other thing I can think of is... Are you sure it's a northwood? Did you check the chip?

Quite frankly, it's either an original P4 1.8 or a 1.8 Northwood only designed to run at 1.8 (there are a few rumors going around that some of the highly overclockables are marked down 2.0 or 2.2 chips)...

If it is an 18-micron 1.8 Pentium IV, you should be able to yell at the vendor... Sorry about it though

 

[Nate420]

If it is a Northwood, and it is indeed the chip that's the problem......It would be a first. A 1.8A should reach at the very least 2Ghz from all that I've seen.

 

[hoihtah]

i can't comment on your lack of performance with that cpu...
but my 1.8a does 2790.
with 420w chieftech psu.
i did it with asus p4s333.

it must be nice to have 650watter.

 

[LarryJoe]

<< It is, in fact 650w, >>



I don't know, but the only thing different about your set-up and the other zillion 1.8 setups happily running at 2.2-2.4 is that odd power supply. I would try another just for kicks.

 

[MetroRider]

<< You probably shouldn't have the extra voltage input connected. It's intended for use with older power supplies that don't come with a P4 power connector. >>



is that really true? i thought that had to be plugged in regardless if your PSU has the P4 power connector or not. would appreciate any info on this topic... thanks!

 

[KenAF]

> The cooling is AS3 with a Thermaltake Volcano-478

This heatsink isn't particularly good...I've heard some say that the stock Intel heatsink is better.

Make sure you set the Turbo1 setting on the Asus to lock the AGP and PCI bus at their appropriate speeds.

 

[LarryJoe]

I had the Volcano up until a week ago when I changed to an AVC Sunflower. Although the Sunflower is a better, nothing dramatic here. I doubt that is his problem, he should be able to go higher than a 105mhz bus with the Volcano.

 

[jweg]

 

[jweg]

Sorry about blank post new to forum.
Do you have a Microsoft Opti-mouse if so try pulling it out as soon as the computer hangs, I did this and
and can reach to 2250 easily before I couldn't set fsb above 110.

 

[nvektus]

Are you sure it's a Northwood not a Willy? It'd be the first Northwood not to hit at least a 2Ghz mark!

 

[Acanthus]

Northwood 1.8a, retail box. I think the problem is memory related because running it a full day at stock speed has had hard drive corruption errors. BSODs saying inaccessable boot device blah blah blah. But after restarting again windows makes corrections to the hard drive, restarts, then works.

The 650w power supply is made by enermax, the 400w i have on hand i tried and my 12v rail took a dive, its generic tho.