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This card has a different board than the usual---anyone have an ideea how to v-mod this piece?The card overcloks too poor---from 475/1400 to 550/1500....
PS: i can`t upload any pictures,the forum keep showing me this message
"You have uploaded the maximum of 5 files" .any ideea?
PS2--sory 4 my english :(
still i can`t uplod any picture of the card--the forum keep saying "You have uploaded the maximum of 5 files" :mad:
Pictures are down due to the server upgrade I think.
Can you upload it to somewhere like flickr.com for the moment.
the sqaure IC with the +- 36 legs (below the 6pin power connector) is the likely regulator in this case
please post the exact codes of that IC.
it may be exactly the same one used on the 7900GT reference boards in which case you should be able work out the mod fairly quickly.
Well did you maybe tried to mod bios of this GPU?
Default vcore is only 1.2V - i achieved only 605Mhz.
I will tommorow post photos + desc of IC
Yeah I have a version of this card and that component is the ISL 6568 ( from memory ! ) I think. I have not modded it yet as it is supposed to be for my gaming rig so I shouldn't really. Mine overclocks poorly as well, up from 540 core to about 580 ....Quote:
Originally Posted by flytek
The bottom left 14 leg IC is the ISL6549 and probably used for memory volts.
Regards
Andy
Is that galaxy with 1.2 memory or 1.4 (i cant see from picture)? I have same but with zalman cooler on it? First time i see this cooler on galaxy!
its 1.4ns
Have leadtek 7900 GS,
place about R508-R511 is same as 7900GT (too leadtek)
this two card have on my board,
with def. 7900 GS core 580MHz
mod conductive link 1,4V --> 680 MHz on gpu core
I didn`t test, but it must work:
1.52v - connect 21 leg on 6558 to ground.
1.37v - Connect 30,31 and 32 legs on ISL6568.
Hello I have a Zogis 7900gs, and Its exactly like that, even the same cooler, and that violet plastic that covered the heatsink. The only diference was its said Zogis.
If someone now about the vmod, I will be really happy, thanks everyone
I have this:
http://resources.vr-zone.com/yantron...C/79galaxy.jpg
a Zogis 7900 GS, and Its exactly the same PCB, and cooler. But on the Core and Memory, I have this values:
Core:
ISL 6568
CRZ
H609FW
Memory:
RT9259
PS8FL05
If somebody now about any pencilmod, I really thanks you, for the information. :banana:
Connect 20KOhm VR from GND to the red marked pin. Lower the resistance to increase the voltage.
http://forums.vr-zone.com/showthread...=108495&page=2Quote:
Originally Posted by ziddey
nice
i have galaxy 7900gs with zalman
the board is pretty the same, only the memories are 1.2ns
i have made voltmod for gpu and for the mem
now the gpu is 1.5 and the mem is 2.24V (original 1.3/2.14 - measured)
before the volt mod i was acheving 585/890
after that i cat get any higher from 630/830
higher than that there are blacksreeens and restarts :((((
(using old comanche 4 benchmark demo as fastest test to determine stability)
can somebody help me making my video card more stable ???