help!! th7-2 + northwood 1.6A problem (fix ortion)

[heedory]

I got th7-2 raid and flash up beta77bios
and install brand new woodie 1.6A

and I heard that th7-2 can fix PCI/AGP clock to 33/66

BUT IMPORTANT!!!

I think it doesn't work

when I crank up fsb to 142 with fix option,
my scsi adaptor doesn't works..
freeze at scsi scan...

what's wrong with it?
I think PCI clock is too high.. right?

but I heard that the 'OFFICIAL' 38 bios has voltage bug..

is there any method to fix agp/pci clock and crank up voltage to 1.6 or above?

need your help~~ ^_^

 

[KenAF]

> when I crank up fsb to 142 with fix option,

Did you set RDRAM to use the 3x multiplier? You're not going to run stable with 4x142 RDRAM on the TH7-II, as its clock generators don't support operation that high. Technically, the clock generators on the TH7-II aren't suppposed to run at above 400MHz, but in practice, different boards max out at different speeds...from 440MHz memory to 560MHz or so.

PCI should not be the problem, as the TH7-II fix option does fix the AGP/PCI, as hundreds of others have confirmed.

 

[brinstar117]

I'm in the exact same boat as you heedory!

I have a TH7-II Raid and a 1.6A, however my BIOS on my mobo is -38 (latest official release)

Even when I'm running on a 133 Mhz FSB with the "fixed" PCI/AGP clock, my SCSI scan locks up. I have to use the divider to work.

 

[heedory]

'You're not going to run stable with 4x142 RDRAM on the TH7-II,
as its clock generators don't support operation that high'

heard that new model of th7-2 equipped with new clock generator that can support pc1066
am I wrong?

 

[ginfest]

I just set up my TH7-II/P4 1.6A from Newegg this week. Although my board has the ICS 9212-03 DRCGs, which are 400 Mhz parts, I've been running at 133FSB, Rambus at "400(=4X FSB)" in BIOS 533/ PC1066 for 3 days. No crashes or problems with Prime95, 3D Mark 2001 looped or any of my D3D/Open GL games. I have also done large file transfers, and Zip/Rar/Ace to check for CRC errors, all is well.
IMO, the bottom line is that although all ICs have certain specs, there are tolerances built in. Some may get 133x4 out of the 400 Mhz parts, others may have to drop down to 3x.
You might also want to make sure that your Rambus will handle the higher bus speeds. I have 2-256 MB Samsung parts, with 16 devices, aks Double-sided/Low density. In the research that I did b/4 ordering, it seems that people have had better luck with the DS Rambus when trying to OC larger amounts of memory, ie the 256MB parts as opposed to the 128MB parts.
As with any OCing, YMMV, there are many factors which go into the equation, such as quality of parts, the power supply output, even the mainboard PCB construction.