332/627 is w/o mod...stock cooling w/ a low cfm 80mm blowing up on the card and one blowing down on the card....no ramsinks. i wanna measure some temps and stuff before i even think about vmod :) been busy!
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332/627 is w/o mod...stock cooling w/ a low cfm 80mm blowing up on the card and one blowing down on the card....no ramsinks. i wanna measure some temps and stuff before i even think about vmod :) been busy!
good ;)
here i've got a 32°C ambient :(
i'm gonna put a WB on the gef ;)
thanks
N8, you've got one killer Abit. A volt mod on it is going to OWN!
sysfailur,
thx :) I just have to think up what I want to do as far as cooling the core. I have an idea, and it will be only air-cooled btw.
Anyway, I'm doing alot of other testing right now, not video card related, so it might be till next week till I get to messing with it. I'm prolly gonna ask someone like cabojoe to mod it for me if i do so, cuz I'm not too handy w/ the solder and he's a good bud :)
Hi guys. I have an Innovision Tornadoe Geforce 4 Ti4200 128 mb, using Samsung 4ns rams. Havent gotten around to overclocking it yet, but have done some preparation for voltage mod with help from this thread.
My card is very similar to the Abit's. With reference to Sysfailur's pic, it has the same SC1102CS chip at the right hand side. And like you guys, I get around 104 ohmage from pin 11. However, it is lacking the SC1102Cs chip at the left hand side. Where the chip should have been, there are metal contact point traces like someone forgot to solder on the chip. Of course, I don't think someone actually forgot. Now I think I've found where to measure the voltages from and I think its the same with the Abit.
This measures the memory voltage I think, and it gives me ~ 3.25 - 3.27v
http://bravo.ausgamers.com/lardarse/lard/back.jpg
And this measures core I think, it gives me 1.66v.
http://bravo.ausgamers.com/lardarse/lard/front.jpg
I'll be getting a VR to solder to pin 11 to see if it increases voltages. I think this right hand one controls memory voltage. Now with regards to core voltage, I dunno how this board controls it since I'm lacking one SC1102CS chip. Could the memory and core be sharing the same chip? Can't seem to find any other chips. There's one SC3.3 chip infront near the core but the Abit board seems to have it as well. Any ideas?
Good info! I'm not sure about your missing chip dilema... I hope someone here can help ya! Perhaps a high res pic of your card might help us identify a chip?Quote:
Originally posted by LardArse
Hi guys. I have an Innovision Tornadoe Geforce 4 Ti4200 128 mb, using Samsung 4ns rams. Havent gotten around to overclocking it yet, but have done some preparation for voltage mod with help from this thread.
My card is very similar to the Abit's. With reference to Sysfailur's pic, it has the same SC1102CS chip at the right hand side. And like you guys, I get around 104 ohmage from pin 11. However, it is lacking the SC1102Cs chip at the left hand side. Where the chip should have been, there are metal contact point traces like someone forgot to solder on the chip. Of course, I don't think someone actually forgot. Now I think I've found where to measure the voltages from and I think its the same with the Abit.
This measures the memory voltage I think, and it gives me ~ 3.25 - 3.27v
http://bravo.ausgamers.com/lardarse/lard/back.jpg
And this measures core I think, it gives me 1.66v.
http://bravo.ausgamers.com/lardarse/lard/front.jpg
I'll be getting a VR to solder to pin 11 to see if it increases voltages. I think this right hand one controls memory voltage. Now with regards to core voltage, I dunno how this board controls it since I'm lacking one SC1102CS chip. Could the memory and core be sharing the same chip? Can't seem to find any other chips. There's one SC3.3 chip infront near the core but the Abit board seems to have it as well. Any ideas?
Found a 100k ohm VR lying around. Set it to around 2000 ohms and soldered it to pin 11 and ground.
Turns out the right hand chip controls the GPU voltage, and it raised my default 1.66v to 1.74v. I'm not gonna turn it higher until I get better cooling. (peltier/watercool :) )
So now where's my memory voltage regulator?? I don't have a digicam ATM, but the place where you have your second SC1102 chip is bare for me, but has metal contact points just set nicely almost as if someone forgot to solder on the chip. Do you think soldering a VR to the point which would coincide with pin 11 would help up my memory voltage?
Also, do you think my Samsung 4ns rams would overclock better with a voltage higher than the 3.25v I'm measuring? What voltage are they supposed to run anyways?
DDTUNG i need help :);)
http://www.gzeasy.com/Articlephoto/2...0_128mb/3d.jpg
Thanks in advice
other detailed photos in here!
http://www.gzeasy.com/Articlephoto/2...64mb/front.jpg
http://www.gzeasy.com/Articlephoto/2..._64mb/back.jpg
Well your card looks exactly the same as the Abit board... you have both voltage chips. So do what has been previously mentioned. (You still might want to check the Ohmage of the 2 pins mentioned before.)Quote:
Originally posted by spaceboy
DDTUNG i need help :);)
http://www.gzeasy.com/Articlephoto/2...0_128mb/3d.jpg
Thanks in advice
Sysfailur, does your Abit come with 4ns rams? How high could you get them with stock cooling w/o ramsinks?
Myine only goes up to 510 without artifacting :(
It does come w/ just 4ns, and I got mine to 600 before it locked up. With more cooling I think I could get it higher as I didn't get any artifacts.. it just locked up.
k i've to measure the ohmage between pin 11 of each SC1102 and ground ?
but i don't understand where to measure the Vgpu e Vmem :/
(it's a bit difficult to me to understand technical english)
10x!
Hi. If your card is similar to mine then here should be the points to measure, + end of meter to + of cap and - ground.
http://bravo.ausgamers.com/lardarse/lard/fronter.jpg
There should also be pins from the same cap behind the card so you can measure from there as well.
My Inno3d card is good for its price, but definitely not overclocking friendly.
It lacks the SC1102 controller and some other chips that regulate memory voltage, so I can't even tweak the voltage. I even soldered a variable resistor to the bare metal contact point where the pin11 of the chip is supposed to be but it didn't do anything. Many parts that are present on other boards are missing on this one, probably to cut cost. I can only change the core voltage with this card. And my stupid memory produces artifacts above 520 mhz, without any ramsinks on.
Well, at least I have an A3 core which is supposed to be better than an A2.
I like to play games at high resolutions. How badly will this bad memory overclock affect me?
anybody has done the mod yet? :)
it's going to be my first mod on a vga card..
is it risky to measure the vgpu and vmem?
Anybody could tell me which fixed resistence to put instead of the pot?
i'm gonna have a wb on the chip ,not peltier..and ramsinks !so.. not much voltage :D
:)
:(
Hi Space.
If you've read my post, I've done the measuring without any problems and the mod to the core which is the right hand chip without any problems as well.
Hi lord :)
yep i've read but i don't feel so confident :/
if i sold a 2k resistor on pin 11 on the Sc1102 i've 1.66@1.74v
Should be right if cooled by a normal WB ,no chilled water?or is better 1.8v ?..
the vmem... to me seems not so easy
i've read here some problems http://www.xbitlabs.com/video/visiontek-gf4ti4400/
with the vmem.. the layout is so different the this one is enough?
my friend told me that measure the V it's quite risky.. and i'don't wanna fry the 4200 so early :D
was it wrong?
a mod like this how it works? http://www.xbitlabs.com/video/vision...em-volt3-f.jpg
all i need is some who has done the mod and give some advice
thanks ;)
I haven't had the time yet to do the mod. I'm working on it. Just rearranged my computer area.
I'm sorry, the memory voltage measurement isn't where I said but here.
http://bravo.ausgamers.com/lardarse/lard/fronting.jpg
I've soldered a VR to the left hand chip and it gives me 3.31v at maximum resistance and slowly upped the voltage as I reduced the resistance. Had it up to 4.06v, but it seems voltage doesn't affect the ram overclock that much.
Be careful now. I just fried my rams with too much voltage at an artifacting overclock. I was running at 3.95v, and then decided to up it a bit more, but over tweaked the pot and system shut down. A boot up gave me a totally crapped screen. Thats with Samsung 4ns. So watch your memory voltage! 3.6-3.7v is the max I would want to go from now on.
Good advice, thanks. I'll be sure to be careful when doin that ;)
What cooling was on that memory when u fried it, lardarse? :)
They were ramsinked before I fried it. I think it must have gone up to perhaps 4.5v when I fried it. It was an accident that I overtweaked the pot.
Anyways, changed it for a new card and now I'm running just 3.31v memory voltage, default's around 3.26v. I dont know why tweaking the pot doesn't change the voltage for this card. Its the same pot I was using on the fried rams. Perhaps it got damaged when the ram fried. Anyways, this just gets me around 610 mhz artifact free. For the core voltage, I tweaked with another pot from 1.66v to 1.85v. Now I'm cooling the core with a watercooled 80 watt peltier. This gets me around 333 mhz core without locking up in 3D. Think this core is rather old. Its a 0152 A2 NV25 core. Think its built in 2001 week 52. I have had a better core once that was A3, but I sold the card.
My SUMA card uses these SC1102CS chips also, and they're placed in the samed position as on the Abit, so I guess I've found what I've been looking for so long. Only have been here one day, but I already love this forum :p
I'll be measuring the resistance in a few minutes, and if I get the same readings as on the Abit, I'm off to get me some VR's :)
This SUMA card owns btw, it does 310/655 out of the box, carrying 3.3ns Hynix chips.
Watercooling is due by next month, so we'll be seeing a frying SUMA pretty soon ;)