FSB holes limiting OC?

[Salsa]

I have my E6600 happily sitting @ 3.2 on an Asus P5N32-E Plus Sli.

But in my quest for 3.4Ghz i have hit a problem in that anything above the 1422 QFSB i used to get there my mobo will not post and requires me to reset the CMOS using the jumpers. No ammount of voltage increases on either the Vcore/Mem/NB will let me post. Memory doesent seem to be a problem i have GeIl 800Mhz C4 which runs unlinked @ up to 900Mhz.

While OC'ing to 3.2Ghz if it wasnt stable or a bad OC i could get it to post but Bios flashed up sayig incorrect setting and i needed to reset to defaults. But i get nothing when trying above 1422QFSB.

Is this because i hae found a FSB hole? Does anyone have any ideas how to work aroud this? Possibly a much higher QFSB and lower the multi?

Have tried reading up on my board but have found the threads either so massive that finding relevent information is tricky or ambiguous at best.

 

[V|per]

have you updated your bios to the latest one? if not, i would try that. My 680i motherboard wouldnt do anything higher than 1900qfsb, again, no matter how much voltage i put through (yes, i did try 1.8v ) updated bios and got no problems going higher at all

 

[Salsa]

Am running the latest BIOS i could find which was 0602 Beta. The asus site doesnt appear to even have this board on the just the non plus version which wont work because its not a 680i chipset but a hybrid >.<

Definitely seems to be a wall at around 388 fsb. Thats the highest i can get it to post at but its not stable at any voltage.

 

[Buckster]

same problem here - E6600 + P5B Deluxe

E6600 is a week 24 one

will do 3.3 @ 1.52 Vcore fine on x9 multiplier

but x8 and x7 - eek the chip doesn't like it ...

so 401x8 for instance needs 1.53 just to post ... and when I tried 411x8 - even at 1.55 Vcore - it "hung" my bios so much - that even a CMOS clear on the mobo didn't work ! I had to take the CMOS battery out the works !

Mark.