This is regarding the Abit NF7-S rev. 2.0 motherboard.
I can "only" hit 227Mhz FSB tops. Sync'ed mem, ASync'ed mem. CPU Interface enabled/disabled. Mem timings from 2-2-2-5, to 3-3-3-8. Increased voltages, decreased voltages, applied AS3 to NB, etc. I've tried over 100 combinations of everything I can think of, and I still hit this 227Mhz "wall".
It's just extremely weird that everything works perfectly at the most agressive settings at 227Mhz and below, regardless of other BIOS settings, but as soon as I try 228Mhz with relaxed timings and underclocked settings, the motherboard won't even boot up.
Again - I'm perfectly stable at 227Mhz FSB. Running prime95 for 24hours, 3dmark loops for 12 hours, ut2k3, memtest30, etc...
But as soon as I go to 228Mhz, or above, the board won't even post!!!
The only thing I've not done is to lap my Northbridge, and Southbridge chips (the northbridge chip is very concave), but I don't think these symptoms are related to heat/stability issues.
Do you guys think this is some weird limitation of the board I received?
Again - it's just freakin' weird that everything should just stop working at 228Mhz. Because of this, I'm lead to believe that it might be a bios issue, and not a voltage or heat related issue.
Any advice will be greatly appreciated!
All my other components are top quality, and should not be limiting the motherboard.
______________________
Abit NF7-S Rev. 2.0 (Bios 14)
XP1700+ @ 2497mhz (11x227 @ 1.75v)
Custom Water Cooling System
512mb Corsair XMS3500
ATI AIW 9700 pro
WD SE 200GB
Lite-On CD/RW
HP DVD+RW
Custom Acrylic Case
Antec TrueBlue 480 watt PSU
WinXP SP1
I can "only" hit 227Mhz FSB tops. Sync'ed mem, ASync'ed mem. CPU Interface enabled/disabled. Mem timings from 2-2-2-5, to 3-3-3-8. Increased voltages, decreased voltages, applied AS3 to NB, etc. I've tried over 100 combinations of everything I can think of, and I still hit this 227Mhz "wall".
It's just extremely weird that everything works perfectly at the most agressive settings at 227Mhz and below, regardless of other BIOS settings, but as soon as I try 228Mhz with relaxed timings and underclocked settings, the motherboard won't even boot up.
Again - I'm perfectly stable at 227Mhz FSB. Running prime95 for 24hours, 3dmark loops for 12 hours, ut2k3, memtest30, etc...
But as soon as I go to 228Mhz, or above, the board won't even post!!!
The only thing I've not done is to lap my Northbridge, and Southbridge chips (the northbridge chip is very concave), but I don't think these symptoms are related to heat/stability issues.
Do you guys think this is some weird limitation of the board I received?
Again - it's just freakin' weird that everything should just stop working at 228Mhz. Because of this, I'm lead to believe that it might be a bios issue, and not a voltage or heat related issue.
Any advice will be greatly appreciated!
All my other components are top quality, and should not be limiting the motherboard.
______________________
Abit NF7-S Rev. 2.0 (Bios 14)
XP1700+ @ 2497mhz (11x227 @ 1.75v)
Custom Water Cooling System
512mb Corsair XMS3500
ATI AIW 9700 pro
WD SE 200GB
Lite-On CD/RW
HP DVD+RW
Custom Acrylic Case
Antec TrueBlue 480 watt PSU
WinXP SP1