Asus HD4670 512Mb vmods.

[s0lid]

Well i'm doing vmods to HD4670 from asus, it uses non reference board so atleast one of the mods differs a bit.

Here's some pics, can somebody confirm that these could work?




Vmem and vgpu read points, well i think i can get em right.

[Theorw]

First of all why the hell would u use a RED line an a RED pcb....????????Change it to blue or something!

[ceemic]

s0lid, yep, they should work fine.

Just one remark for the names of IC's: uP6101 and uP6205A

[s0lid]

Mods are confirmed, running at 970/1020 atm
Tho i had too small VRs, only 10KOhm, Vgpu is at 1.58V (1.3V stock), mems are at 2.1V (2.0V stock).

Here's some pics





BTW NO these don't work on 1GB version or the other 512mb model.

[Splave]

impressive solder job hitting that little pin!

[s0lid]

impressive solder job hitting that little pin!

Heh didn't solder directly into that FB pin, just into some 0805 pad which is connected to that pin
But thx anyways.

[topalof]

hi,

my Asus 4670 is differently,and i seek the vgpu/vmem.
i think that is not very different of this card,but i don't know...
have you an idea?
the card is a EAH4670/DI/1GD3/V2/A.










PS: sorry for my english

[Andr3az]

Topalof, what is written on these IC-s?

[topalof]

it's very difficult to see,but i think :

P6101BU8
YDB934

P6205A
VLF88J

[topalof]

hi,

it's ok for the Vmem,IC is P6101,is same of the s0lid card
for Vgpu,i seek... (P6205A)

[ceemic]

topalof: http://ceemic.pri.ee/hardware/datasheets/uP6205.pdf
FB is pin 11.

PS. Please use links or thumbnails for these big pictures.

[topalof]

ok,thanks ceemic
sorry for picture,it's done.

for Vgpu,i see the pin 11,but for GND,i must use the pin 2?
and i not see where take the gnd



between pin11 and all green point,i have ~3.70Kohm(there are others with green pine 3.70Kohm)
where take the GND please?

[Andr3az]

ok,thanks ceemic
sorry for picture,it's done.

for Vgpu,i see the pin 11,but for GND,i must use the pin 2?
and i not see where take the gnd



between pin11 and all green point,i have ~3.70Kohm(there are others with green pine 3.70Kohm)
where take the GND please?

You can take ground from the Fan connector GND pin.

[topalof]

ok,thanks(if i understand well,any mass should go?)
and for the mesure point,have you an idea?

thanks
bye

edit : ok,i've find

thank you very much at all

[ceemic]

For reference GND measurements between FB use pin5 (AGND). For Vmod use some GND near that IC.
If that 3,7kohm is right, then use 100k VR.

Good luck.

[topalof]

ok,thanks
but is strange,i can run memory 1030mhz at Vstock(1.80v),but 1050mhz and more impossible, whatever the voltage...(tested up to 2.10V)...
for the gpu,i can run at 1070mhz 1.58v with stock cooling

edit:i thing,because my 4670 is 1gb Gddr3...and quimonda chips.
i will test an sapphire 512mb(hynnix i think)

[s0lid]

Little aftermath after about 2 weeks of daily use of this card:

1020Mhz/1050Mhz 24/7 stable at 1.58v/2.1v
With twin turbo cooler temps won't go higher than 51c even fans are at 7V. Tho now i've this rig inside of case due lans, so gpu temps are around 70c :F Demolishes this darn small case tomorrow and puts this mobo on old trusty cartboard box

Tested with different various games:
Cod4
Hl2
Stalker1
HoN
Red faction: guerilla
Mercs2

[topalof]

hi,

still problem
i received another card 4670 512mb,it's still different PCB card and i don't know where find the vgpu/vmem...







http://ceemic.pri.ee/hardware/datasheets/uP7706.pdf

can you help me please?
P7706 is for vmem? and which the two? (pin 7 and 8?)
anf for vgpu,there are not the same IC,and i don't know where do it


edit: i've find the IC on the the other side,but written on IC :

BN-AK
DOU

where find the datasheet?




edit : Vmem ok.
still seek Vgpu

[ceemic]

topalof, uP7706 is not right. Do a layout pic from otherside PCB also.
NX2114 might me for mem http://ceemic.pri.ee/hardware/datasheets/NX2114.pdf

[topalof]

hi,

yes,i know
for mem,i've already find,and now i have find the mod Vgpu,on the other side(side cooling).

thanks