Newbie O/C question

[Feldenak]

Ok, I've managed to increase my FSB to get my 2.4 to around 2.6 (140something FSB?) My question is what is the next step I should be looking at? My temps are all ok (unless I decide to check Sandra which had me running @ 120C with stock speed). Are there any memory settings I should be fiddling with while bumping my up the FSB? This is my first attempt at an overclock and I'm not sure where I need to go from here. Specs (pre-FSB increase) are in my sig.

 

[Duvie]

Oh boy!!!! I would suggest you list full specs on system....I want to see cpu (whether its 400fsb or 533fsb), power supply (brand and size), ram (brand and size), and mobo brand....


The key to successful cpu ocing is to set ram timings to most conservative as well as try not to run the ram at all over the spec speed rating..Try to isolate true cpu limitations and keep memory out of it...until we find that limit....


What is your vcore set at in bios and what is being reported by sandra and/or any hardware monitoring software bundled with your board....

When did you buy that chip??? What is the packing date?? Is it a b0 or c1 stepping chip???

Sounds confusing??? It is really not that but this is what I need to see and things I would definitely want to know prior to ocing...

 

[Feldenak]

Originally posted by: Duvie
Oh boy!!!! I would suggest you list full specs on system....I want to see cpu (whether its 400fsb or 533fsb), power supply (brand and size), ram (brand and size), and mobo brand....


The key to successful cpu ocing is to set ram timings to most conservative as well as try not to run the ram at all over the spec speed rating..Try to isolate true cpu limitations and keep memory out of it...until we find that limit....


What is your vcore set at in bios and what is being reported by sandra and/or any hardware monitoring software bundled with your board....

When did you buy that chip??? What is the packing date?? Is it a b0 or c1 stepping chip???

Sounds confusing??? It is really not that but this is what I need to see and things I would definitely want to know prior to ocing...

I'll get that info up here as soon as I get home from work....unfortunately that will be about another hour.

 

[Feldenak]

Originally posted by: Duvie
Oh boy!!!! I would suggest you list full specs on system....I want to see cpu (whether its 400fsb or 533fsb), power supply (brand and size), ram (brand and size), and mobo brand....


The key to successful cpu ocing is to set ram timings to most conservative as well as try not to run the ram at all over the spec speed rating..Try to isolate true cpu limitations and keep memory out of it...until we find that limit....


What is your vcore set at in bios and what is being reported by sandra and/or any hardware monitoring software bundled with your board....

When did you buy that chip??? What is the packing date?? Is it a b0 or c1 stepping chip???

Sounds confusing??? It is really not that but this is what I need to see and things I would definitely want to know prior to ocing...

Ok, here goes.

P4 2.4 533FSB (C1 stepping, pack date of 1/15/03)
Antec True430 (430 watt)
2x256 Crucial PC2700
Mobo is Gigabyte SINXP1394
Vcore in BIOS 1.586-1.602
Hmonitor lists Vcore at 1.55

 

[Feldenak]

Anyone want to point me in the right direction?

 

[Feldenak]

Last bump I promise, but I could really use either some pointers in the right direction or something along those lines.

Thanks.

 

[brucehao]

With PC2700, you can increase the FSB to 166 without overclocking the memory. So like Duvie said, keep all of your other settings as conservative as possible, i.e. set your ram timing to std. Keep your vcore at 1.525. Increase your fsb in small increments, and use stability tests like memtest86 and prime95. If you're stable, increase the fsb a little bit more. If you're not, increase the vcore a bit and try again. Once increasing the vcore no longer helps, bring down the fsb a notch so that you're stable. You've then found the limit on the cpu. Next, you can try to make your memory timings more aggressive with the same method. Increase voltage to the memory when necessary. Find its limit and back it down a bit.

Make sure you lock your agp/pci bus speed, too.

Also keep an eye on your temperature. You shouldn't be exceeding 60*C (on the mobo monitor) at load.

 

[Duvie]

If all current data is correct on the sis655 and that gigabyte board you likely will hit the "SIS wall" at 169fsb...Unfortunately that C1 is likely to go above that....I recommend follow by boosting fsb directions above and move towards that 169fsb....Yes you will get some kick-ass memory bandwidth scores but the sis chipsets are not the big ocers and thus could possibly limit your overall clock increase by a few hundred mhz....

Also early on avoid using usb devices and onboard items (ie vid, sound, ieee, etc....)....Using highly integrated stuff on mobos can also effect fsb levels in ocing...

 

[Feldenak]

Just wanted to say thanks guys. So far, so good.