sweet mod, nice find :D
but where on the board do i measure the vdimm so i know it works?
Printable View
sweet mod, nice find :D
but where on the board do i measure the vdimm so i know it works?
Quote:
Originally posted by tictac
on nf7... the vdimm came from 3.3v so u wont get higher than this unless u have 3.3v higher than 3.3v
same trick...
1st set vdimm to the max.. 2.9v
save
shutdown
pull of cmos batery
power back on
set vdimm to 2.6v
save
shutdown
Put back cmos batery
power on...... now measure ur vdimm voltage with dmm(Digital multimeter)
should be 0.3V overvoltage on vdimm
i supposed it will work to... :)
Are you saying that on save and before it repost, to shut it down?? Confirm that for me.
I will try it....why the hell not.
backside of 1st mosfet under dimm1 or leg 1 of mosfet next to it (under dimm 2). Both readings will be within ~.02v of each other.
vtt/vbt supposedly tracks automatically on these boards.
I wonder if this could be related to some "dead" boards, and if we can modify the bios to do this without having to trick the board?
Well, it initially worked.
When set to 2.6v in bios, actual was 3.03v. Set to 2.9v and rebooted....before post I turned it off, Vdimm was reading 3.29v actual at that point.
Popped out battery and reposted, went into bios and it was automatically back to 2.6v.
Put battery back in and reposted....thats where the problem is.
On the first post after removing battery it shows cpu @ 1100mhz....although bios shows it set to stock 2500+ settings. So, after battery is back in and reposted, it detects theses settings and does a Save. That wipes out the 0.3v addition.
I've still got .2v of the +.3v.....
We're getting somewhere at least
Hell-Fire, on which MoBo did you try it?! NF7-S or DFI LP?!
thanx for trying...Quote:
Originally posted by Hell-Fire
Well, it initially worked.
When set to 2.6v in bios, actual was 3.03v. Set to 2.9v and rebooted....before post I turned it off, Vdimm was reading 3.29v actual at that point.
Popped out battery and reposted, went into bios and it was automatically back to 2.6v.
Put battery back in and reposted....thats where the problem is.
On the first post after removing battery it shows cpu @ 1100mhz....although bios shows it set to stock 2500+ settings. So, after battery is back in and reposted, it detects theses settings and does a Save. That wipes out the 0.3v addition.
i think there is some difference on nf7 bios
coz when we save setting
it will boot 2 times
1st boot: Safe mod...
2nd boot: boot with our changes setting
maybe this is the reason why it cant be done on nf7 bios
any other try on DFI?
Quote:
Originally posted by naelq
Hell-Fire, on which MoBo did you try it?! NF7-S or DFI LP?!
NF7-S V2
Quote:
Originally posted by tictac
thanx for trying...
i think there is some difference on nf7 bios
coz when we save setting
it will boot 2 times
1st boot: Safe mod...
2nd boot: boot with our changes setting
maybe this is the reason why it cant be done on nf7 bios
any other try on DFI?
I am gonna try a few other things to see what happens.
Here is another odd thing. When using the battery out and in test, the board totally partially disregards the Vdimm mod I have in place. When set to 2.6v in bios, it is reading the Vdimm correctly at 3.03v....but when I swith to 2.9v, it reads 3.29v versus 3.45v which is what it reads with the battery in.
or try it difference way arround...
on the 1st save(save with 2.6v vdimm) let it to boot 1st.. then shut it down
power on back without cmos battery
set vdimm to 2.9v... save
let it post 1st
shutdown
put back cmos baterry... :)
Yeh, thats what I was thinking as well....or take out battery while it is booted, then repost and go into bios...set to 2.9v, save and repost, then put battery back in....reboot.
I'm confused as to what I did exactly I tried so many things, lol :D
Yea but it was real fun! I felt like I was on speed again. Like the old days!! It was worth the rush :toast:Quote:
Originally posted by STEvil
I'm confused as to what I did exactly I tried so many things, lol :D
wut if u already have your board vdimm modded? would it bump it up even more?
Well heres what I did on a unmodded nf7,
I set it to 2.9 in bios and powered off
I removed the battery and Powered back on
Set the voltage in bios to 2.6, my settings were still saved in bios.
Powered off, then put the battery back in.
Powered back on and went directly into windows.
I dont have a multimeter right now, so Im just going by what I knew was stable at 2.9volts. Before max prime stable @2.9v was 217@2,2,3,11. Now with the bios set to 2.6volts, I am prime stable at 217@2,2,3,11.
So far so good for me. What Im wondering is, At what point will this reset itself back to 2.6v? If I change a setting or something or save bios again will it reset?
yes.. it will bump it up even higher on DFI board... :DQuote:
Originally posted by FlyingHamster
wut if u already have your board vdimm modded? would it bump it up even more?
Wow, thats awesome ...Quote:
Originally posted by Shroomalistic
Well heres what I did on a unmodded nf7,
I set it to 2.9 in bios and powered off
I removed the battery and Powered back on
Set the voltage in bios to 2.6, my settings were still saved in bios.
Powered off, then put the battery back in.
Powered back on and went directly into windows.
I dont have a multimeter right now, so Im just going by what I knew was stable at 2.9volts. Before max prime stable @2.9v was 217@2,2,3,11. Now with the bios set to 2.6volts, I am prime stable at 217@2,2,3,11.
So far so good for me. What Im wondering is, At what point will this reset itself back to 2.6v? If I change a setting or something or save bios again will it reset?
now how can we set at 2.9, remove battery and power on, then set to 2.6, put battery back in, then somehow set it up to 2.9v, so we get a real 3.2v ?
Nice work... :banana:
Hey, has anyone tried this with VDD ?
Well I cant get anyhigher clocks out of this mem, I think the chipset might need more voltage now. I get errors in prime at anything higher. Good new is, I try upping the fsb and voltage but it didnt help so i went back to 2.6volts at 217 and ran prime again, still stable:) So it seems to stick after the bios changes it self for me.
Well... if the voltage still sticking on Bios memoryQuote:
Originally posted by Shroomalistic
Well I cant get anyhigher clocks out of this mem, I think the chipset might need more voltage now. I get errors in prime at anything higher. Good new is, I try upping the fsb and voltage but it didnt help so i went back to 2.6volts at 217 and ran prime again, still stable:) So it seems to stick after the bios changes it self for me.
trick it for 2nd time
set to 2.9v again
save
shutdown
pull away cmos battery
set vdimm to 2.9v
save shutdown
put back cmos battery back
power on... straight to windows..
2.6v in bios = should give 0.6v overvoltage
"The bios is stupid enough.. dont worry we are clever then them... :D"
Heres something I dont get, I tried dropping my vdd now too 1.4volts and my board is still stable at 217. so on minimum vdd and vdimm it hits its max. Maybe that why this board isnt my overclocker.;)
has anybody tried the same trick on the NF7 Vdd?
________
volcano vaporizer
maybe this is why some boards get brick walled at 217 and vdd never seems to help and such?
Are you L12'ed? I am.
I'm currently testing out....
My highest stable(Prime 95 for over 12 hours) FSB with 2,2,2,6 timings was about 218~219MHz.
Now testing at 227MHz FSB :)
Gonna leave it over night, and hopefully come back in the morning to find Prime 95 still running :)
Wish me luck. Really should probe the voltages with my DMM. Ok, not sure what it read before, but with the BIOS set to 3.3v the back of MOSFET 1 is reading 3.34~3.35v.
for those doing this mod on an NF7, remember to cool the Vtt mosfet (underneath Dimm3 latch). If Vtt is tracking the increased VDimm this mosfet will get VERY hot and may burn out without cooling.
________
Honda C77
has anyone tried this on an A64? more vcore on the NF3 boards would be nice.
Nice find. Vcore would be best... vdimm is modded ;)
hehe, as long as voltages are stable. :thumbsup: