ti4200 vmod.

[blubbo]

Hi all! I can't figure out what chips I should use to vgpu and vmem mod my graphics card... I will post some pictures, hope u guys can help me. I'm really not sure who made the card, on the box it says pixelview and on the fan prolink... Either way I didn't buy it my self, it was a present. But now I would like to push it some further using better cooling and vgpu+vmem mods. I have a big cooler here by my side and its going to the gpu then i should buy something for the memchips...

Here are the pics.
http://promodders.dajm.com/anv/upload/blubbo/over.jpg

http://promodders.dajm.com/anv/upload/blubbo/under.jpg

[Hell-Fire]

Those chips on the back look promising enough.

The ones with what to me looks like 14 pins..?

Both are at the top

http://www.asmdmohaa.com/hellfire/over.jpg

[blubbo]

Thank u very much for helping me! :D
They say:
SC1102CS
0217
G29021-2
and
SC1102CS
0217
G29021-2

so they say the same. does that mean its the wrong chips or is it the correct chips?

Thanks again!

EDIT:
I've been reading a bit in some old threads and from what I understand those are the correct chips. Now my questions are witch is the gpu and witch is the mem? And how many Ohms should i use. If some1 could give me some basic info like how many volts are 2 much and such that would me really nice. Oh and I almost forgot, I should solder (I think I'll glue them as in my vdd mod) on 11 or 14? Gah... some basic info, plz!

[Hell-Fire]

Yepperz, you are one lucky mutt. Those are the easiest chips to mod...well, next to the bigger chips on the 4400 and 4600 that is.

Its not to hard actually from here.

First, unplug the card and lay it face down on something that wont ground anyting out...like a wood table or foam place mat.

Second, grab a multimeter and make sure it is set to read ohms. If there are several settings for ohms, choose the lowest as you shouldnt get a very high reading when you take measurements. Something around a hundred or so. We will need to measure both chips, so start with the one on your left as it is usually the chip that controls the vmem. Place the "RED" probe on pin 11 and place the "BLACK" probe on either pin 14 or a ground of any type...anything metal will usually do. Do the same thing for the other chip and record what you measure so that we can make the best adjustmenst to your VRs. Also, when measuring off of pin 11, be sure that you are ONLY touching pin 11 and not several pins together as they are small.

**IMPORTANT**
In case you didnt know this already, to determine the pin numbers on an IC, start with the pin that is next to the little DOT on the IC..that is pin 1, and move counterclockwise.

Third, take your measurements and multiply them by 20, take that value and set that as your initial startup value for your vrs. That means, take the VRs, place the red probe on an outer leg, and the black probe on the inner leg. DO NOT MEASURE FROM BOTH OUTER LEGS. Best thing to do is cut off one of the outer legs to prevent mistakes. Leave the inner and one outer. Iwould use a Sharpie and mark the VRs so you know which is which after presetting them.

Forth, now that you have set the initial values for your VRs,,time to solder away. I do not recommend soldering the vr straight to the IC as this can be difficult and raises the "accident" potential significantly. I would solder 1 wire to pin 11 and another wire to a ground...then solder the wires to the VR. It doesnt matter which VR leg you solder to when you connect the vr to the wires. The only thing that affects voltage when using a VR isnt which leg you sldler to, but which way you turn it. In general, turning a VR clockwise will decrease its resistance which raises the voltage.

Fifth, now that you have soldered your VR (with the initial measurements ppreset to it) you should measure your volts and see a small rise in them voltage across the vmem and vgpu. Now, plug the card back in and check the voltages after booting the machine. be careful not to ground anything else out when measuring your voltages...in fact, after finding what capacitors show you the voltage for vmem and vgpu, solder a wire from both cap legs and measure using the wire...much safer that way.

From here, its totally up to you on how far you push the voltage on the card. I wouldnt recommend pushing to far since you are aircooled.

Give me your initial voltage readings from the card before doing this mod so I can better help you make a wise decision about how far to push the voltage up.

In case you didnt find this Tuturial, its a good read and will answer any question I may have missed: http://www.xtremesystems.org/mricee/SILURO%20Ti4200%20OTES/Ti4200voltmods.htm

Good luck and let me know if you have any more issues.

[blubbo]

Thank u very much! Now I know exactly what to do! :D Unfortunately I'me going away on saturday and we have alot of preparements to do like packing and cleaning up the house and other VERY booring things... So I guess I'll be doing it when i come back. Also I need to buy a multimeter. whitch also should be nice 'cause then i can messure my vdd voltage. Also going to do the vmem and vcore mod, just waiting for a little cooler temperatures but i have the VR:s home so I'me getting tempted! :D Oh and about air cooling: I've got my hands on a big, big cooler whitch I'me going to use temporary. Then I should design my waterblocks. My father has a CNC mill worth ~1.5USD :D

ROFL... Meant 1.5 million USD

[Hell-Fire]

Be sure to take yer time when ya do, so do it right the first go versus having to make repairs. =)

Have fun with it and good luck.

[blubbo]

I will! But as I said earlier I'm going on a vacation so it wont be done in a while. Also I fixed my moped today and pissed of an hole street with my friend :D we tried out our brakes on a street :rolleyes: and 3 persons from diffirent houses came out and yelled at us :D. That was great fun! Anyway I'll post pics and results when it's done! Thanks for all help!

[Bugs]

I wich I have those regulators SCxxxx, on my card. ;)
Good luck

[blubbo]

Originally posted by Bugs
I wich I have those regulators SCxxxx, on my card. ;)
Good luck

I'm like VERY happy about it! My father gave it to me last christmas and i didn't know anything about pixelview/prolink so I got a bit worried about the performance and such. I'm a bit dissapointed with the mems, 540MHz is the highest I can go without extra cooling :(. Well well nothing a cpu cooler and a dremel can't fix :D... Thanks! :banana:

[Hell-Fire]

Part of that only going 540 is cooling, and big part of that is voltage....I guarantee it.

I had same problem with a Ti4400..after vmod..and no extra cooling..stock sinks ans fan...she went an extra 20-25mhz on core, and almost 50 on the mem.

Pffffffftttt, wish I had the SCxxxxx regs as well..make life hella lot easier.:stick:

[blubbo]

Hi I'me helping a friend to do this and he has a SC1102CS on the left and the readings he got is: 109, 2 ohm. Can that be the truth?
And on the other one its an SC2602S and the readings are: 123,5 ohm. Did he do the readings right?

[blubbo]

OMFG, my ti4200 is no longer with us... But plz can you guys help my friend out?

[Hell-Fire]

What happened to it blubbo?

And yes,,those were the correct readings from the ICs... 109.2ohms and 123.5ohms.

You used commas...so that wasnt something crazy like 109,000ohms right...very important difference.

Let me know whats up bro.

[blubbo]

Ok, thanks! What happened? Well first I have to tell you that I am the most unlucky person in the world (atleast in my house :p :D)! I bought a Maxtor 120gb 8mb a while ago. It was broken when I got it so i returned it and got a new one. I have been away alot and I only used the new one for like 3 days or something, now it's broken to... That is unlucky? Well I got over it, and the next day i fryed my ti4200 =/. I was pounding very gentle on my chassi too make noice (I have a noice activeted ccfl) and guess what happened? I punded just so hard thata a 3pin-molex adaptor with no fan connected (did not now I had one loose even :() fell down on the card and fryed it :(. That sux ass! Well I got over it and I think I'me going to buy a 9600pro with 2.8ns mems instead when i return my hdd. The shop i buyed it at has those graphic cards cheap and i don't have to pay shipping. Could not find any good ti4200 cards that are cheaper, in fact some of them costs more than the 9600 pro with 2.8ns mems. So I guess I will be buying one of those... Now i use my reserv card, a gf256. Now I am the best with that card and 2GHz in 3dmark2k1SE :D. Going to try some tweaking tonight, also going to look for vmods :D. If u find any guides, post them here plz! Well what do u think I should do, buy a new ti4200 or the radeon?

[Hell-Fire]

Bro the Ti 4200s kill the 9600 line.

The top 9600Pro on the 3DMark ORB boards is only doing 15,722 bro, and thats with an extra 1.4ghz on his cpu compared to mine, my fsb was 200 and his was 263...remember that an AMD board doubles the fsb so mine is 400, Intel quads the fsb so his is 1052.

As you can see, his system is kicking mines ass in all departments, but he only beat me by 1000 3dmarks bro. I would go with the Ti4200, not to mention that the 9600 Pro is more expensive and for less of a card!

To help you understand better, the top 3DMark for a Ti4200 is 19,306 marks....see the difference now?

If you do decide to buy another Ti4200, be sure to check it out first and make sure it has the same voltage controllers on it if yo plan to vmod it ok.

I still havent figured out how to do mine yet....arghhhhh. :cussing:

[blubbo]

I already had changed my mind :D my friend talked me into buying a V9280S so that's the way its going to be probably. He has 18k something with it in 2k1SE :D


EDIT: btw I'me not as stupid as i look :p knew all about the ti4200... Just that a local shop where i kinda know the owner had 9600 pro for a cheap price. But some reserch and a friend changed my mind... And also the 9600pro with 2.8ns is cheaper than many ti4200 cards here. It's my man Ali's sick price of them, very very cheap. Still I'm going to buy a new ti4200!

[Hell-Fire]

Good decision bro.

Good luck and let me know how things move along for ya after ya get it.

Cheers.

[blubbo]

Thanks and I will! Also I'm going to buy a new mobo and processor soon :D

[Hell-Fire]

What ya plan on gettin?

You moving to the Dark side that is Intel?

[blubbo]

Noooo... I really don't know. It's gonna be an AMD system and thats the only sure thing...

[saaya]

have you modded that g256 already?
a friend of mine has one as well... those cardsd are nice little beats i tell ya!

he has the elsa erazor x2 with 32mb gdr ram (early ddr memory)

[blubbo]

No, I've been in my summer house. Do you know any guides to vmod gf256?