Biostar Tpower i45 OVP mod

[pippo369]

I need OVP and vcore mod for this mainboard someone it has already made?

[dinos22]

same
i am about to hit it up with LN2 in half an hour

i hope CPU has a decent temp tolerance

[hey]

hey:

i had done this one but, after moding, somehow you cannot set and exit from bios, Pt1t and youngpro also have the same issue.i will try something different maybe tonight, and below i added NewBeetle's vcore mod for tp45 but i guess you dont need vcore mod.

[dinos22]

well tonight i tested my stock board on LN2
and i could use 1.88 and also i managed to use 1.92v from bios

but you will have to start off with lower volts with a stable preset first and then select higher volts

if it sticks do not enter or save bios settings again or you won't be able to start

i did some 5.8-5.9GHz Spi but my board FSB is not very good like other guys for longer tests

i could run superpi at 6GHz but there was no point running shorter test as this board absolutely sucks for 1M SuperPi but it's pretty fast for 32M and 8M

i had a task manager open and no tweaks on superpi run just as i booted at 5.7GHz and the finish time was still 8m33s so it's superfast considering you can shave off another 10 seconds + from some tweaking/tighter timings and wazza

unfortunately i won't be able to overclock for the next 2 months and i have a monster CPU that has no problems with -140C can prime bench on air at 4GHz 1.2v and will bench 5.8-5.9 if you have the board that can handle the FSB .............. how messed up is that arrrrgh

[hey]

hey :

here is the ovp mod for biostar i45

[pippo369]

Thanks boys, I will use alone pin 1

[ceemic]

If someone interested on Vdroop mod:
http://ceemic.pri.ee/hardware/tpower/tpower_mod01.jpg
http://ceemic.pri.ee/hardware/tpower/tpower_mod02.jpg
http://ceemic.pri.ee/hardware/tpower/tpower_mod03.jpg
http://ceemic.pri.ee/hardware/tpower/tpower_mod04.jpg
http://ceemic.pri.ee/hardware/tpower/tpower_mod05.jpg
I used 20k VR, but 10k VR should do also

[ceemic]

Can someone confirm those, specially Vcore?
http://www012.upp.so-net.ne.jp/ohij2/vcore-mod.jpg
http://www012.upp.so-net.ne.jp/ohij2/vnb-mod.jpg
http://www012.upp.so-net.ne.jp/ohij2/bio-vddr-mod.jpg
http://www012.upp.so-net.ne.jp/ohij2/vfsb-mod.jpg
http://www012.upp.so-net.ne.jp/ohij2/vfsb-measure.jpg

[ceemic]

Attention!
The Vcore mod in my previous post might not work!
Default resistance between FB->GND is ~44,5k ohm, so use 250k VR for Vcore mod.
I just did the mod with 200k VR (I have switch also, so for 24/7 it's off) and "def" Vcore rised 0,011V!
http://ceemic.pri.ee/hardware/tpower/tpower20_mod.JPG