so you change it while in the bios. makes sense
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so you change it while in the bios. makes sense
I've been adjusting mine while in windows and running apps too. I've been measuing them with the new Voltage Meter I bought today. No adverse effects, but I was only making minor adjustments. I'm gonna wiat till my replacement PC4000 VX arrives before I start doing much (running off of the one good stick of PC3200 VX I still have, which is part of the kit I'm RMA'ing).
i just have a thought to add, if you are not doing this jumper mod and are using the 3.3v rail(stock voltage) to power the memory... if you set the vdimm in the bios to a certain voltage, for instance 3.2v, but then check with an actual multimeter to see that vdimm reading is not accurate in bios and you are only getting 3.1v actual... you could then do this jumper mod without overvolting the psu 3.3v rail, only to be able to set vdimm higher in bios(maybe 3.4v) to get true 3.2v into the the memory.
this should be another situation that this jumper mod could improve. if i am wrong please corret me.
You should be able to get 3.2v into the memory without any jumper changes if you have a good rail on your PSU. Mine is set at 3.40v and I get 3.22v solid. However if you can't do that then no I don't think your method will work, you can not get more voltage without changing the output of the PSU.Quote:
Originally Posted by euclid
So all you do is switch your jumpers to those, increase the pot on your 3.3 line on your psu and you're done?
So I guess this MOD is only good for Powerstream users since only they can raise the voltage on their 3.3v rail.
It's convenient for Powerstream users, but nearly any psu can have the 3.3V sense line mod done, easily. Then you can raise those too.Quote:
Originally Posted by Rezag1000
May I ask how a Blue storm owner would go about increasing the voltage on the 3.3v rail then? :D :D
There are adjustable pots when you open up the psu itself.
If it has a 3.3V sense line, read this: http://xtremesystems.org/forums/showthread.php?t=37574. Your only limit will be wherever that psu's OVP kicks in.Quote:
Originally Posted by Rezag1000
edit to add: You can do that mod anywhere along the sense line. The pics show up by the psu case, but I found it more convenient down by the ATX connector. Wherever works best for you.
i didnt mean you would be getting more than 3.2v, but if your bios is already set at 3.2v and your not actually getting 3.2v to your mem(from multimeter reading) its not the powersupply fault... its the bios not having an accurate reading. you'd have to trick the bios into overvolting beyond 3.2 in order to actually get a true 3.2 in the multimeter, which the psu 3.3v rail set to stock can handle.Quote:
Originally Posted by Soulburner
what happens, if I set 3,3V Vdimm with 3,36V on the 3,3V rail?
can something blow up, if the 3,3V rail can't support the needed vdimm?
I believe you would just have an unstable vdimm around 3.3volts. That's not good to have, but shouldn't blow anything up in the short term.
Can someone quote me and please answer me before I kill something :p. So you can't just increase the pots internally (fortron) and it'll still work? Do I HAVE to do the sense wire mod for this trick? I may just do the 5v and deal with it...
yes, but be sure to measure the 3.3 line with a Multi-Meter/Volt MeterQuote:
Originally Posted by DamienKC
OFF TOPIC: Heh, this is post #42 for me......"Long Live <b>The Hitch-Hikers Guide to The Galaxy: A Trilogy in Five Parts</b>!!!!! XD XD"
i tried now, but doesn't work well. Maximum Vdimm was 3,24V but very unstable.Quote:
Originally Posted by Snark42
So i had to switch to 5V Rail again but the fu**ing Mosfet gets extremely hot :caution:
If you have a adjustable pot for the 3.3 that will adjust the 3.3 voltage high enough for you then you dont need the sence wire mod. The only reason for the sence wire mod is to be able to adjust the 3.3 voltage.Quote:
Originally Posted by DamienKC
has anyone tried this trick without a psu with adjustable rails...
what happens if you choose like 3.3 rails in the bios would you get 3.3v cause thats the max for the 3 rail, right. or would you still get 3.2.
what happens if you pick 3.4?
just interested i guess....
OK I thought that's all it was...good news for me then. GO FORTRON! :)
Quote:
Originally Posted by Rezag1000
huh? Ther are tons of different PS's that you can adjust the 3.3 line up.
Wondering... the new 510 bios has an option for 0.03+v. Can you enable this bios setting is you have the jumper set to feed more volts to the dimms from the 3.3v rail of your psu or will it do nothing or worse yet damage something? 0.03v isn't much but it might be just enough to keep 1-2fsb stable without jacking up another whole 0.1v on your psu and bios.
Has anyone with this 3.3v mod used this setting successfully? I am dying to try it but don't want to be guinea pig incase something fubars.
Thanks.
+0.03 works fine with 3.2vmem+ if you got +3.3 rail enogh high.Quote:
Originally Posted by cantankerous
ok thanks. I have the jumper set as page 1 on this thread shows. I have my 3.3v rail up to 3.45 so I should be able to get 3.33 if I use this option in the bios. I wasn't sure if this option only worked if the dimms were fed from the 5v rail. I didn't want anything to go on me if I decided to yank the extra volts from the 3.3v rail. Thank you for your clarification. I'll go give it a try.
see my previous post :)Quote:
Originally Posted by ninja_xxx
i think dfi thought of this in teh beginning, why would they others send so many spare jumpers :p