8rda+ VDD Mod question!!!

Zork · Apr 1, 2003

Does anyone know if it is possible to do the mod without a variable resister, just with a resister of a specific ohm, which would yield a result of 1.8v. The reason I am asking this is becaue I do not have access to a voltmeter, or is there a good way to guess what resistance you have the variable resister set to by counting the number of turns?????

Thanks

jonspd · Apr 1, 2003

(176 / ohms resistance) + current vdd voltage = resulting vdd voltage

176 divided by 750 + my 1.59 vdd before the mod gave me 1.824.

Taken from

http://www.motherboardfaqs.com/8RDA/index.html

Zork · Apr 1, 2003

Thanks a million, really appreciate this. I'm gonna be shooting for 1.80v, I think that should be safe. Now only if today was tomarrow, thats when my board is supposed to arrive.

OnDborder · Apr 1, 2003

Then use a 820ohm, like me. I have 1.80vdd.

Zork · Apr 1, 2003

Also, has anyone had any luck using the SMD grabbers for this mod, like i said i havent recieved my board yet, but plan on doing this mod. I have a couple of SMD grabbers but dont know how tight the fit will be, i guess what i am asking is there enough room under the chip and around the legs for these grabbers to even be considered??

lazyart · Apr 1, 2003

Ask and you shall receive:

http://8rda.com/page2_2.htm

OnDborder · Apr 3, 2003

JonSPD and I both use the grabbers.. I haven't had any problems with it holding. Just when moving the box around check to make sure it or your ground didn't come off or touching anything else.

jonspd · Apr 3, 2003

OnDborder said:
JonSPD and I both use the grabbers.. I haven't had any problems with it holding. Just when moving the box around check to make sure it or your ground didn't come off or touching anything else.

I agree totally smd grabbers are the way to mod with out fuc**** s*** up and you just have to make sure if you remove vcard and other stuff to check the connection of it and as soon as it boots go to bios and look @ the vdd voltage.

lazyart · Apr 3, 2003

Did you still have to solder the connections? I'd like to do this with hot glue instead... I'm dangerous with an iron.

OnDborder · Apr 3, 2003

No, you don't have to solder.. Except it might be best to solder the wire to the resistor ends.. You don't have to solder onto the grabber.
What I did was attach a longer wire to the grabber, solder the end to the resistor, shrink wrap the connection for insulation. On the other end I did the same except instead of the grabber I used the female fan header for grounding.

lazyart · Apr 3, 2003

How much to build me one? I think I can handle the glue part? lol

8rda+ VDD Mod question!!!

Zork

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jonspd

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Zork

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OnDborder

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Zork

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lazyart

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OnDborder

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jonspd

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lazyart

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OnDborder

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lazyart

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