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|9th October 2004, 14:05||#1|
yesterday I did a voltmod to increase the voltage of my northbridge. This is the result
before I could only reach 223 fsb . I didn't tried it any further because ther is now 1.8V on my northbridge. How high may I go?
You can see my ram is running 5/6. It only goes to 227Mhz super pi stable .
I removed the heatspreaders yesterday, and they are CH-5. Can I go higher with a vdimm mod?
|9th October 2004, 14:35||#4|
Join Date: May 2002
doh, you already wrote that in your post, didn't see it, sorry , what mobo did you use? and wha guide?
seems that .2v+ is quite effective. te NF-S can go up to 1.8v also by default no? or am I mistaken?
should not push it over 2v though, nForce2 chips don't like that apparantly (ask richbastard)
|9th October 2004, 14:40||#5|
[M] Reviewer/HWBot *****
Join Date: May 2002
Mine fried at 1.95v. Be carefull. The northbridge chip is able to sustain 1.8v for a long if well cooled, but be sure the voltage regulators feeding the chip don't burn up (Epox motherboards).
HTPC (mac osx): Mac Mini | Core Duo 1.6Ghz | 2GB DDR2 | 26\" TFT
Development (mac osx): Macbook | Core 2 2.0Ghz | 4GB DDR2 | 250GB HD
Games (win xp): E2160 @ 2.4Ghz | HD3850 OC | Asrock 4coredual-vsta | 2GB DDR2
|9th October 2004, 14:42||#7|
my board goes to 1.7V but it undervolts a lot. I had to put it on 1.7 to reach 19* Mhz. . So I knew that my northbridge was holding me back.
I checked my voltage with a multimeter and It was 1.9V but the guide told me that the reading was 0.1V too high. So my bios is 1.6V (maybe thats like 1.5V) and the voltmod does the rest of the 1.8V.
Now I know that I have a good chip, but my mobo was bad because of the undervolting.
I want to try to go higher. I think I can reach it with that voltage. But the 12v rail of my psu is quiet low now. Maybe I try it tomorrow, now I have to work at a "spaghettifestijn"
edit: nothbrige is cooled by a zalman cooler with a 40mm fan and a 80mm casefan blowing on it. Even the cpu cooler blows air on the northbridge. I also cooled my southbridge .
edit 2: If I go higher (fsb) without reasing the voltages, is there a risk to burn my mobo???
|9th October 2004, 16:31||#8|
*edit* I noticed on telenet that you had an NF7, still interested to know how you modded it.
It's amazing that there can be so much difference while essentially we have the same boards. You gain 40 fsb just by doing a Vdd mod I gained 0 fsb from the Vdd mod
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