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View Full Version : Can I trust ClockGen's PCI frequency reading?


Mikael
10-23-2006, 02:44 AM
I've been trying to overclock this Gigabyte GA-M55S-S3 with a 3500+ Socket AM2 CPU for the past few months. It isn't hard to get it stable at up to ~2.8GHz, but I seem to have some boot problem that get worse as the bus frequency increases. So, I decided to check the PCI frequencies with ClockGen. Here's a snap:

http://www.etek.chalmers.se/~brunnis/clock.gif

A 40MHz PCI bus with a moderate 240MHz HTT isn't very nice... It sounds very strange that a modern Nforce motherboard wouldn't lock the PCI frequency, though. What do you think of it? Does ClockGen report a 33MHz PCI frequency when you overclock your Nforce 5 boards?
fakhrain
10-23-2006, 03:14 AM
Maybe you just need to manually disable 'spread spectrum' thingy inside the BIOS.
Mikael
10-23-2006, 03:28 AM
Maybe you just need to manually disable 'spread spectrum' thingy inside the BIOS.
I can't, since there's no such setting in this BIOS.
fakhrain
10-23-2006, 03:35 AM
That's weird. I guess you just have to bear with it. Clockgen does show actual value though...
Squid_Spit
10-23-2006, 04:44 AM
See if you can set your pci freq to 33mhz in the bios.
Mikael
10-23-2006, 05:36 AM
See if you can set your pci freq to 33mhz in the bios.
No, there is no PCI frequency setting either. There is a PCIe setting, but that's it.
Draxx
10-23-2006, 05:40 AM
Try setting PCI-E to 101Mhz
Mikael
10-23-2006, 06:01 AM
Try setting PCI-E to 101Mhz
Just tried it and it didn't do anything.