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-   -   voltmod owns (http://www.madshrimps.be/vbulletin/f10/voltmod-owns-8899/)

kr15t0f 9th October 2004 14:05

voltmod owns
 
yesterday I did a voltmod to increase the voltage of my northbridge. This is the result :D

http://users.pandora.be/kr15t0fke/pc...%20moehaha.JPG

before I could only reach 223 fsb :D. 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?

jmke 9th October 2004 14:30

how much voltage are you feeding that NB ?

kr15t0f 9th October 2004 14:33

1.8V, 1.6v in bios, but 0.2 volt higher with voltmod.

BTW, on the screen my cpu voltage is a bit high, forgot to put it lower after I lowered the multiplier :D

jmke 9th October 2004 14:35

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)

RichBa5tard 9th October 2004 14:40

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).

jmke 9th October 2004 14:41

http://www.madshrimps.be/forums/show...t=%2Aepox% 2A

kr15t0f 9th October 2004 14:42

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" :D

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???

kristos 9th October 2004 16:31

no
Quote:

Originally posted by jmke
what mobo did you use? and wha guide?
jmke NF7 rev2 allows up to 1.7V in the bios

*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

jmke 9th October 2004 16:35

which is better then 1.5v from MSI :/

Sidney 9th October 2004 16:41

NF7 Rev1 also has 1.7V for the NB chip.

wutske 9th October 2004 17:54

Be carefull with that Zalman cooler, because it doesn't completely cover the chip :grum: .

FreeStyler 9th October 2004 22:31

shouldn't be a problem since the heat production is in the centre anyway.

kr15t0f 9th October 2004 23:54

idd, but because I'm working on a casemod my mobo is out my case (on the mobotray) and there are 2 120mm fans cooling it :D + roomtemp is 11C :D.

I like a cold room.


For 24/7 use I don't think I gonna puchit that far :D.

@kristos. I used a pencil mod :D. Just to be sure that a real voltmod would work. In a few weeks I gonna buy a good solder set and then I gonna mod it with a resistor.

btw, I used this guide http://www.motherboardfaqs.com/content.php?content.12

kr15t0f 10th October 2004 00:09

just reached 268 ( forgot to take a screen :() but on 270 pc chrashed and windows screwed up. :( It crashs more than a normal windows install :).

guys, I think I need BH-5 really hard :D.

someone want's to trade it with CH-5 and a barton 2500+ that does 2.5Ghz on stock voltage :D. Thats the best I can offer :D. Maybe 50 extra, but thats it :(


BTW, I tested my barton 2500+ and it's max is 2.5Ghz, It does 2.5Ghz on stock voltage, but then it stops, even if you use a much higher voltage :wtf:

kr15t0f 10th October 2004 18:56

I got a very strange problem. My pc won't boot with a divider differend from 3/3 :wtf:

kristos 10th October 2004 22:16

anything other then 1/1 (and 2/2/ 3/3 ... auto) doesn't work like it should on nf7's (and I think on nforce2 in general)

kr15t0f 10th October 2004 22:25

Quote:

Originally posted by kristos
anything other then 1/1 (and 2/2/ 3/3 ... auto) doesn't work like it should on nf7's (and I think on nforce2 in general)
ok :) But yesterday it worked. Stange actually. But h, what you gonna do about it.

Pc is still chrashing a lot btw, didn't had time to do a format.

kristos 10th October 2004 22:53

well I have no experience with it, I just read it on fora :) I didn't try running async yet because of the performance drop and the problems I hear about while running async, whatever they may be.

I'm going to try it one of these days, see what gives.

kr15t0f 11th October 2004 13:00

Quote:

Originally posted by kristos
well I have no experience with it, I just read it on fora :) I didn't try running async yet because of the performance drop and the problems I hear about while running async, whatever they may be.

I'm going to try it one of these days, see what gives.

you don't have to try it, my pc was 5 sec slower on superpi at 260 6/5 then at 217 3/3 :D

kristos 11th October 2004 14:15

it's not for performance, it's to see how high I can clock the ram (if the dividers allow for this)

btw do you notice a performance gain at 3/3 compared to the other dividers like 1/1 2/2 6/6 and auto?

I always leave it on auto cuz it's supposed to give best performance (if you can believe the bios info ;)) but I haven't tested if it's true.

kr15t0f 11th October 2004 14:18

Quote:

Originally posted by kristos
it's not for performance, it's to see how high I can clock the ram (if the dividers allow for this)

btw do you notice a performance gain at 3/3 compared to the other dividers like 1/1 2/2 6/6 and auto?

I always leave it on auto cuz it's supposed to give best performance (if you can believe the bios info ;)) but I haven't tested if it's true.

I shall test it this evening.
But how will I test the performance? I don't think the difference will be so big that you will notice it in super pi.

piotke 11th October 2004 16:51

Quote:

Originally posted by kr15t0f

guys, I think I need BH-5 really hard :D.

someone want's to trade it with CH-5 and a barton 2500+ that does 2.5Ghz on stock voltage :D. Thats the best I can offer :D. Maybe 50 extra, but thats it :(

Interested :)

2*256 BH5 corsair PC3500, 233 Mhz 2-2-2-5 @ 2.9 V, good sticks, ask Gamer ;)

Gamer 11th October 2004 17:02

:feesten: :feesten:

piotke 11th October 2004 17:03

told ya :)

kr15t0f 11th October 2004 17:05

da_boka sells his sticks on SG @ 150 "meeneem," But if I sell those I can make myself a second pc if I buy a mobo, on the other hand I'm intressted in what you ask for those 2 x 256MB.

maybe you sell them cheaper then da_boka ;)

wutske 11th October 2004 17:10

Some people say that 6/6 is the best option, never noticed a difference :rolleyes: . I don't have problems with my dividers (nf7-s v2.0) here, the only problem is that it doesn't have the div I need :grum: .

piotke 11th October 2004 17:29

Quote:

Originally posted by kr15t0f
da_boka sells his sticks on SG @ 150 "meeneem," But if I sell those I can make myself a second pc if I buy a mobo, on the other hand I'm intressted in what you ask for those 2 x 256MB.

maybe you sell them cheaper then da_boka ;)

msn me = piotrfierens@hotmail.com

kr15t0f 11th October 2004 20:11

msn doesn't work here :s

piotke 11th October 2004 20:16

Quote:

Originally posted by kr15t0f
msn doesn't work here :s
mail me = piotke@madshrimps.be, whith your offer :)

kr15t0f 11th October 2004 20:37

aleluja, i'm logged in at msn :D


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