BIOSTAR IP45 Vdrop mod

[philbrown23]

yeah looks like ima have to solder one to

[andre X_X]

anyone can give me VMHC mod??? i need more than +0.7v

[philbrown23]

Johnny would prolly be the best candidate for that as he is the vmod guru round here. I'm trying to find a vdram mod myself. but it's a definate pita

[philbrown23]

anyone have the actual resistors for the vcore mod or pics of the vcore mod? seriously .5 jumps are a little rediculouse and on a wolfdale that could be thediff between the safe zone and non safe zone for water and air cooling.

[philbrown23]

Still no vcore mod???

[ceemic]

philbrown23, measure resistance FB->GND and multiply it with 20x, so You now which VR to use I'll do the mod in next few days and report back.

[philbrown23]

sweet!

[TheKarmakazi]

looks like I need to get my soldering iron out... LN2 on the tpower soon for me...

I am also very interested in the vMCH mod if there is one.

[DiscoTech]

ok Pencil mod 3 posts up works. I could not get it to measure 500 ohms but measure 1.687kohms but I penciled it to 1.5kohms and now no more vdroop it stays right on exact set voltage in bios or overvolts a tad

I am reading 2.17k on that resistor for the pencil mod. why is it different? what should I pencil it down to?

[philbrown23]

I am reading 2.17k on that resistor for the pencil mod. why is it different? what should I pencil it down to?

well yeah pencil it down worst case scenario you'll have to erase it.

[philbrown23]

Ceemic you get the mod done yet? when I X the measurement by 20 I get 56kohms so looks like a 100kohm resistor

[ceemic]

philbrown23, if so, I'd recommend 50k VR. It has "smoother" end. You need to adjust 100k too far and can't adjust Vcore so well...

I haven't had time yet (yesterday I moded a HD4850); probably I'll do it on Friday and report ASAP.

[ceemic]

Can someone confirm that Vcore mod?
http://www012.upp.so-net.ne.jp/ohij2/vcore-mod.jpg
I can't atm look, which PWM pin it's connected with.

philbrown23, maybe You have time to do the quick measurement? I'd like to know the resistance from that point to GND. Thanks!

Macro from that place: http://ceemic.pri.ee/hardware/tpower/tpower20.JPG

[philbrown23]

measurement from that point to ground= 44.6kohms I think it'd connected to the same pwn but iunno

EDIT: I CAN confirm that pencil mod, it actually works better than the other one in the beggining of this thread, before I still had .1 vdroop now I have a mere .003 vdroop

[ceemic]

~45kohm? Have You disconnected all stuff, including CPU, from board?
This resistance should be around 5-10kohm, so 50-100k VR would work.

[philbrown23]

well I mis typed the resistance was 4.46kohm not 44.6 rofl, I was in a hurry, cuz I had to head to work. but yeah just under 5kohm

[ceemic]

Then 50k should work. Is that point directly connected to FB pin or which?

[philbrown23]

Then 50k should work. Is that point directly connected to FB pin or which?

yeah I'm pretty sure it is, not 100% but pretty sure. I'm still kinda new to this hard modding stuff.

[DiscoTech]

measurement from that point to ground= 44.6kohms I think it'd connected to the same pwn but iunno

EDIT: I CAN confirm that pencil mod, it actually works better than the other one in the beggining of this thread, before I still had .1 vdroop now I have a mere .003 vdroop

Can someone confirm that Vcore mod?
http://www012.upp.so-net.ne.jp/ohij2/vcore-mod.jpg
I can't atm look, which PWM pin it's connected with.

philbrown23, maybe You have time to do the quick measurement? I'd like to know the resistance from that point to GND. Thanks!

Macro from that place: http://ceemic.pri.ee/hardware/tpower/tpower20.JPG

http://www.overclex.net/data/images/...VDROOP_MOD.PNG

This mod works fine too

Are these the pencil vdroop mods you are talking about? So the top recent one works better?
Do you pencil both of those resistors shown? do you know the values to aim for?
Is there a vcore pencil mod?

Thanks.

[ceemic]

DiscoTech, I'm talking about hard-mod. I don't ever use pencil mods

[Deux]

Not trying it thread-jack but anyone have measure points for this board? Vcore, VTT and Vmch most importantly

Thanks

[philbrown23]

Not trying it thread-jack but anyone have measure points for this board? Vcore, VTT and Vmch most importantly

Thanks

if you read up a few posts you'll see the measure point

[ceemic]

Deux, Vcore - otherside mobo: coil legs nearest to socket
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

[Deux]

Deux, Vcore - otherside mobo: coil legs nearest to socket
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

Appreciate it

[philbrown23]

Then 50k should work. Is that point directly connected to FB pin or which?

well CEEMIC I tryed that hardmod and I got no post no matter how low I set the resistor. I may have done it wrong but I dont think so. your still welcom to try it as you seem to be better at hardmods than me.