Dell XPS 420 Intel X38 Q6600 1.3v+ VID mod
3
Has anyone gotten their Dell XPS 420 Q6600 at beyond 3.1/3.2 GHz, and how did you do the volt mod?
I reach stability issues at beyond 3.1 GHz, when I approach 350 FSB speeds, x9 mult. I use RMClock to disable EIST, C1E, extended throttling, and run Max performance.
SetFSB brings me from 2.99 to 3.14 GHz 350.0/700.0 FSB/RAM (other sources tell me 800 RAM, confusion)
Memset doesn't work because my MCHBAR is locked. I'm at a 5:6 FSB : DRAM ratio, maybe setFSB lowers RAM or tries to make it 1 : 1
4x1 GB 5-5-5-18 DDR2 RAM PC6400, running @ about 420 MHz, (5.9 WEI, noticed no difference in my overclockability withi GSkill PC6400 5-5-5-15 3x2GB WEI 7.3)
PSU is Antec 750 watt modular.
Tape modded, wanting to increase volts for stability, temps aren't issue atm, just can't clock more.
http://www.overclock.net/intel-cpus/341123-intel-bsel-vid-mod-guide.html
This was my resource.
I've done both of these mods, the FSB tape mod first and have run that stable to 3.14 GHZ stock voltage 1.25 for months now.
I just did the VID 1.45 mod with silver ink pen and more electrical tape.
My CPU:
should equal 
RMClock, CPU-Z, Core Temp, and Everest all report 1.25v, that must be accurate, which means it did nothing for me. (It functions, surprisingly!)
I wonder if I should try doing the 1.4v mod instead, or thickening the ink/making it more precise by blocking with tape before inking.
Or maybe I should do this which someone did to their Q6600 so it should be a more reliable test (everything else is general LGA 775 maybe it doesn't work on the Q) if there is another factor. It's also a less complicated mod, should be 1.31 v, found here.
![original.jpg]()
Any tips appreciated.
I reach stability issues at beyond 3.1 GHz, when I approach 350 FSB speeds, x9 mult. I use RMClock to disable EIST, C1E, extended throttling, and run Max performance.
SetFSB brings me from 2.99 to 3.14 GHz 350.0/700.0 FSB/RAM (other sources tell me 800 RAM, confusion)
Memset doesn't work because my MCHBAR is locked. I'm at a 5:6 FSB : DRAM ratio, maybe setFSB lowers RAM or tries to make it 1 : 1
4x1 GB 5-5-5-18 DDR2 RAM PC6400, running @ about 420 MHz, (5.9 WEI, noticed no difference in my overclockability withi GSkill PC6400 5-5-5-15 3x2GB WEI 7.3)
PSU is Antec 750 watt modular.
Tape modded, wanting to increase volts for stability, temps aren't issue atm, just can't clock more.
http://www.overclock.net/intel-cpus/341123-intel-bsel-vid-mod-guide.html
This was my resource.
I've done both of these mods, the FSB tape mod first and have run that stable to 3.14 GHZ stock voltage 1.25 for months now.
I just did the VID 1.45 mod with silver ink pen and more electrical tape.
My CPU:
should equal 
RMClock, CPU-Z, Core Temp, and Everest all report 1.25v, that must be accurate, which means it did nothing for me. (It functions, surprisingly!)
I wonder if I should try doing the 1.4v mod instead, or thickening the ink/making it more precise by blocking with tape before inking.
Or maybe I should do this which someone did to their Q6600 so it should be a more reliable test (everything else is general LGA 775 maybe it doesn't work on the Q) if there is another factor. It's also a less complicated mod, should be 1.31 v, found here.
Any tips appreciated.
