my 1.8GHz northwood

[goodman4ever]

hi guys i final start overclocking and i got grat result until i reach 124FSB with 1.625V i tried higher then 124 but i could not get there i tried incresing the vold up to 1.7v but i still can not boot my agp and pci setting is on auto i tried changing them but still no post. any suggestion where is the proplem here is my system info:
p4 1.8GHz nothwood
Gigabyte GA-8SRX SiS645 chipset, Petium 4 Socket 478
512Mb Nanya DDR PC 2700 333mhz Memory
430 watt power supply
geforce 2 video card 32Mb

please help thanks

 

[jazztrumpet216]

First off, WELCOME TO THE FORUMS!

If you haven't already read this (it sounds like you have a good grasp on things so I'm guessing you probably don't need a lot of the info here but it might be worth a look anyway), the Overclockers.com Beginner's Guide Section has some good stuff to know about how to overclock, and other helpful hints about your computer in general. One article I think is definitely worth a look is this one , which was written by one of our Forum Senior Members, Batboy. It is a very thorough article that gives you the do’s and don’ts of overclocking. Likewise, you might find the CPU Database of some help in determining what others have been able to safely overclock your processor to.

What are your load temps at?

Some burn in might help that processor too. Burn in by setting your FSB as LOW as possible and voltage as HIGH as possible. Some good programs for burn-in and general system maintenance are Motherboard Manager 5 (MBM5), SiSoft Sandra, Toast, and Prime 95. You can check to see if some of these are available at downloads.com (I know Sandra is available there), and aoafiles.com also has some good CPU programs (and other nice, interesting stuff, as well).

 

[KevMHare]

Hello. I was looking through the forums here, because I have pretty much the same problem.

My Setup :

P4 1.8a
Gigabyte GA-8SRX
256mb pc2100 ddr
Matrox DualHead TV Out 32mb

I can get my FSB up to 125, and the RAM up to 125 also, any higher and the system will not even post. I was thinking that there may be a problem with my video card and / or the PCI bus, so I set them to AUTO. I upped the vcore to 1.6.

Temp never goes above 42 C for the CPU. I have rounded all of my cables, and installed extra case cooling...

Any help would be appreciated!!

 

[DaveB]

Well both you guys are getting your 1.8A CPUs to a little over 2.2 GHz. Contrary to a lot of the posts you might see, that's about where most 1.6A or 1.8A Northwoods peak out on air cooling with moderate overvolting. While there are some freak CPUs out there that do 2.4 GHz at the default core or a little above, you've usually got to get the core to 1.8V or so and have excellent cooling to get to 2.4 GHz. The CPU is the problem because at 124 MHz FSB, the PCI, AGP, and DDR are all well within spec. But 2.2 GHz really isn't too shabby.

 

[RobP4P]

Try setting the pci dividers manually, who knows what gigabyte decided was the 'auto' setting at 124mhz fsb. Get the pci close to 33mhz and the agp close to 66mhz and see what you can do. check what your memory speed is too, when trying to find a max fsb, set the memory as low as possible to eliminate the possibility that your memory is crapping out before your cpu. You could also try making the jump to 133mhz fsb and set all your dividers to 'auto' that would ensure that pci/agp/mem is all running at spec. That 8srx board has so much flexibility there's no reason to run it at 'auto' if you're having problems gettting to 133fsb.

 

[bellylard]

You should also do the + 0.2v jumper setting. It helps alot. Just look in your manual too find the jumpers.

 

[KevMHare]

Thanks for the feedback. Let me address everything that I have done to this point.

As for the auto settings, I just tried that last night, each time I worked with this before, I was manually changing the agp and pci to keep them as close to 66 / 33 as possible.

I can up the vcore quite a bit with this board, but have not opted to go above 1.6v yet. It almost seems to be a limit of the board, in that the entire system stops once the FSB is set up above 125.

You should also do the + 0.2v jumper setting. It helps alot. Just look in your manual too find the jumpers

I checked my mobo manual, and there are no jumpers on the board. Plus, I've had the PC apart quite a bit lately.

My next thought was to try SoftFSB and see what happens.

 

[goodman4ever]

Hi guys thanks for the post i have tried changing the pci close to 33 and the agp close to the 66 and any fsb above 124 i cannot post i have a voltage of .2 seting but thats for pci and agp should i cange it.another thing regarding the temp i have no temp. proplem because i have 3 case fan and one blower and my case is open so my full load temp. doesnot exceed 34.so i was thinking if this my video card limit...????

 

[Revx]

I just help my uncle set up a 1.6a system, he got his 1.6 to 2.4ghz no problem

 

[goodman4ever]

hi Revx
can you tell us more about his system and what setteing are he using
Thanks

 

[Revx]

ocz pc300o(what a waste, but may come in handy for a later system, but he has the Asus P4B266, 2.7vmem, 1.85vcore. 150mhz FSB, the alpha 478 cooler(i forget the model name)

 

[Floundering]

Had same prob but fixed it!

I had a problem close to that. I have a 1.6a and i could only get moderate ocing results! My problem was not w\cpu voltage im at 2.240 w\stock fan and no voltage modifications! My problem was RAM it is crucial cas 2.5 i droped the cas to 2.0 and it enabled me to clock up to what im at now i can actualy go higher w\out ajusting voltage but im comfortable w\ my speed now! Hope this helps!


Floundering Salmon

 

[KevMHare]

My problem was RAM it is crucial cas 2.5 i droped the cas to 2.0

I need a little help here. I'm new at OCing, and don't know what you mean by cas. Can someone help me out.

Thanks

 

[funnyperson1]

My problem was RAM it is crucial cas 2.5 i droped the cas to 2.0

I need a little help here. I'm new at OCing, and don't know what you mean by cas. Can someone help me out.

Thanks

cas is the memory timings the slower the faster/more unstable (only if you have bad ram)....you can change these features in the Advanced options in the bios.....

 

[jdmcnudgent]

My problem was RAM it is crucial cas 2.5 i droped the cas to 2.0

I need a little help here. I'm new at OCing, and don't know what you mean by cas. Can someone help me out.

Thanks

why do you have pc2100 ram on a 333 mobo?

 

[KevMHare]

why do you have pc2100 ram on a 333 mobo?

Cash...Had to run out someplace

 

[Caffinehog]

Hmmm... Changing the CAS from 2.5 to 2 should have been putting more stress on the memory! Lower numbers are faster for memory, except bank interleave.
The fact that it worked at cas 2 and not at 2.5 could just be a quirk that the motherboard has.