Went from 400mhz FSB to 410mhz

[geno]

I tried bumping my FSB up a little to try to test my RAM and see what it can stand up to. I changed my settings appropriately by incrementing the FSB speed in my BIOS, saved my settings and rebooted. When I rebooted, I saw my clock speed back at 2.5ghz (stock). Now, switching between stock speeds and my OC speeds yields no changes at all. The FSB has backed down to 333mhz, and setting it back to 400 does nothing... What the hell? Did I break something? The important parts are as follows :

Gigabyte P35-DS3L
Q9300
Corsair XMS2 PC2-6400 RAM

Thanks for any help. I'm going to get back to my bios and try to get this running properly again

 

[Tired of the Bull]

Welcome to my world. I've had similar behavior with my Gigabyte MB since I bought it a year ago. After reading everything ever written on every P35 based Gigabyte board I think your are experiencing BIOS corruption. If you had the system running fine at your previous settings but after a simple change you can't go back to those settings try a full CMOS clearing:

1. Shut the system down
2. Remove the power cord
3. Remove the CMOS Battery
4. Set the CMOS_CLR Jumper to On
5. Press the power button for 10 seconds
6. Let sit for 10 minutes
7. Set the CMOS_CLR Jumper to Off
8. Insert the CMOS Battery
9. Insert the Power Cord
10. Restart the system
11. Enter the BIOS
12. Load Default Settings
13. Save Default Settings and Exit
14. Restart the System and enter the BIOS to reconfigure to your past settings.

 

[geno]

Funny, I was just grabbing a jumper from another system to try clearing the CMOS. So when you say this is how your system has been behaving, do you occasionally lose settings when trying to change them? Is this something that I should expect to just happen if I'm going to be tweaking settings? It figures, I had it running stable at 3.0 and I wanted to eek out just a little more power...

 

[Tired of the Bull]

I have had several different issues but a couple of them are right in-line with what you're experiencing now. Currently, if I even enable the "CPU HOST CLOCK CONTROL" the system post fine but reboots after passing the memory test and when I go back into the BIOS the clock control is disabled (so no overclocking can even be attempted). I've experienced things like it taking all my settings but ignoring them when it boots even though the settings are still active when I go back into the BIOS. A number of BIOS settings issues, but one thing seems very sure, something corrupts in the BIOS because the same BIOS with the same settings can give completely different symptoms after clearing the CMOS.

 

[geno]

Well, I'm pleased to say pulling the battery and setting the Clear CMOS jumper did the trick. I kinda panicked thinking I fried my mobo - thank you very much

 

[Tired of the Bull]

Very glad to hear it. Now back to shopping for a Quad...