FSB problem on NF7s - fsb resets to 100

MrM · 24 Apr 2006 at 19:49

I have a problem with my Abit NF7S and 1700 T'bred. It clocks easily to 200*11 on standard volts, but recently it has been reverting to 100*11 on boot and wont stay at 200 for more than 2 successive boots from cold. Any idea on why this is happening and how I can rectify it? Havent upgraded the bios or anything recently so not sure why I am getting this problem....

TIA

mc_bob · 24 Apr 2006 at 20:15

Check the voltages of your Cmos Battery, it should be about 3.3v tops.

MC_Bob

MrM · 29 Apr 2006 at 10:39

Had a quick look in the bios and all voltages seemed ok, if anything som to the high side. Could it be anything else? Thanks

Baddass · 29 Apr 2006 at 14:54

sounds odd. Might be worth flashing the BIOS to a newer, possibly modded version. See if that helps

ajgoodfellow · 29 Apr 2006 at 15:33

Replace your CMOS battery

The stock multiplier for your XP1700 is 11x (11x133=1.47GHz)

Often when the board is first installed it reads the multiplier correctly but defaults to an FSB of 100MHz

MrM · 7 May 2006 at 10:07

Thanks for the replies. I have had the combination running smoothly at 200*11 or 11.5 depending on cooling for about 2.5 years.... it is only recently that it has been defaulting back to 100*11. I have a modified bios on there which I have been running for some time. Looks like I will try changing the cmos battery. Any particular one I need? Are some better than others? Any need to knows before ploughing ahead and doing it? Thanks again

ajgoodfellow · 7 May 2006 at 12:12

Hi!

If you look at the existing CMOS battery you will be able to see what you need to replace it

99% of motherboards use a CR2032 button cell battery - any one will do