Retired Sticky
Well I was getting very frustrated because I hit a FSB wall on my NF7-S Rev 2 board at 213 FSB synced with CPU Interface Disabled. So I decided to join pin AH30 and the closest ground pin by inserting a thing strand of telephone wire into the socket's pins. I booted up and went into bios and set it to "LOAD OPTIMAL SETTINGS". I saved and exited and it booted as a 166FSB XP 1700+ @ 1750!!! After this I decide to go back into bios and crank the FSB and see if this mod really works. I got it to boot into Windows as high as 233 X 10.5 synced with CPU Interface Disabled. The only problem of course was performance and stability at that speed.
Before the mod it wouldn't even post at 215FSB. Right now I am ROCK P95 and 3Dmark stable at 216 X 11 = 2376mhz @ 1.775 vcore with CPU Interface Enabled. I can't go any higher with CPU Interface Enabled because P95 will LOCK UP. I know it is my Corsair PC3200 RAM holding me back at this point. I am just thankful it is doing PC3500 speeds though @ 11-3-3-2.5 timings @ 2.8VDIMM. I tested at 228 FSB with CPU Interface disabled and the memory scores inSandra were the same as 216 X 11 with CPU Interface Enabled so that is why I have decided to stay at 216FSB with CPU Interface Enabled(Enables tighter latency between chipset, CPU, and RAM).
All in all by doing this L12 MOD which turned my XP1700+ 133FSB CPU to a XP1700+ 166FSB CPU, I have gained 10 more synced FSB mhzs with CPU Interface Enabled and about 20 or so more synced FSB with CPU Interface Disabled. Right now it is my RAM that is holding me back from reaching probably 233 and beyond!!!
I would highly recommend any to do this easy L12 MOD to make their 133FSB CPUs into 166FSB CPUs if theya re using the Abit NF7-S Rev 2.0 boards and have a low FSB wall. Just go here to find out which 2 pins you will need to jumper either on the underside of the cpu with a thin telephone wire strand, or like I did and just jumper the corresponding pin holes in the motherboard's socket which only took me 3 minutes and of course is completely removable with no irreversible modification to the CPU.
I would like to thank xigfrid over at xtremesystems.org for this L12 MOD advice. You can read more about this L12 mod by go to Extremesystems.org L12 Mod Thread . Remember the L12 MOD is working if after you do it and go into bios and set "LOAD OPTIMAL SETTINGS" save and exit and it boots up at it's default multiplier times 166FSB rather then 133FSB. By the way I am using BIOS 1.7 with no problems at all and no OCing difference from BIOS 1.0 - 1.6. Please post your results of this L12 MOD in your setup and GOOD LUCK!
Well I was getting very frustrated because I hit a FSB wall on my NF7-S Rev 2 board at 213 FSB synced with CPU Interface Disabled. So I decided to join pin AH30 and the closest ground pin by inserting a thing strand of telephone wire into the socket's pins. I booted up and went into bios and set it to "LOAD OPTIMAL SETTINGS". I saved and exited and it booted as a 166FSB XP 1700+ @ 1750!!! After this I decide to go back into bios and crank the FSB and see if this mod really works. I got it to boot into Windows as high as 233 X 10.5 synced with CPU Interface Disabled. The only problem of course was performance and stability at that speed.
Before the mod it wouldn't even post at 215FSB. Right now I am ROCK P95 and 3Dmark stable at 216 X 11 = 2376mhz @ 1.775 vcore with CPU Interface Enabled. I can't go any higher with CPU Interface Enabled because P95 will LOCK UP. I know it is my Corsair PC3200 RAM holding me back at this point. I am just thankful it is doing PC3500 speeds though @ 11-3-3-2.5 timings @ 2.8VDIMM. I tested at 228 FSB with CPU Interface disabled and the memory scores inSandra were the same as 216 X 11 with CPU Interface Enabled so that is why I have decided to stay at 216FSB with CPU Interface Enabled(Enables tighter latency between chipset, CPU, and RAM).
All in all by doing this L12 MOD which turned my XP1700+ 133FSB CPU to a XP1700+ 166FSB CPU, I have gained 10 more synced FSB mhzs with CPU Interface Enabled and about 20 or so more synced FSB with CPU Interface Disabled. Right now it is my RAM that is holding me back from reaching probably 233 and beyond!!!
I would highly recommend any to do this easy L12 MOD to make their 133FSB CPUs into 166FSB CPUs if theya re using the Abit NF7-S Rev 2.0 boards and have a low FSB wall. Just go here to find out which 2 pins you will need to jumper either on the underside of the cpu with a thin telephone wire strand, or like I did and just jumper the corresponding pin holes in the motherboard's socket which only took me 3 minutes and of course is completely removable with no irreversible modification to the CPU.
I would like to thank xigfrid over at xtremesystems.org for this L12 MOD advice. You can read more about this L12 mod by go to Extremesystems.org L12 Mod Thread . Remember the L12 MOD is working if after you do it and go into bios and set "LOAD OPTIMAL SETTINGS" save and exit and it boots up at it's default multiplier times 166FSB rather then 133FSB. By the way I am using BIOS 1.7 with no problems at all and no OCing difference from BIOS 1.0 - 1.6. Please post your results of this L12 MOD in your setup and GOOD LUCK!
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