TI4200 Volt Mod?

**spaceboy** · 08-13-2002, 04:40 AM

i've got 105 ohm for the GPU and 113 for the DDR

maybe my ram is undervolted a little by default?

is the R8 that changes? 105 gives 1.65 and 113 around 3.3v?

**sysfailur** · 08-15-2002, 05:14 PM

Well it's been a while, but Imma finally get around to doing this volt mod :P I'll let everyone know what I get naturally. Should have results in under a week.

**UaZa** · 08-18-2002, 07:21 AM

My XFX ti4200 arrives tomorow.. ;p

Zack, take a lot of pics and write a review man!

Btw.. what are good fixed values to the core & mem? for a watercooleD core and for a 85w tec ;p

**eva2000** · 08-18-2002, 07:42 AM

my 64MB Leadtek GF4 Ti4200 TD at default voltage does 313/613 on my P4 1.8A on P4S333

**macci** · 08-24-2002, 10:44 AM

I happend to grab one of these Abit Ti4200 64MB 4ns cards for the time being (killed my ti4600 and waitin for replacement). obvioulsy I had to test if its anygood

stockOC => 307..310 core / 621 mem
vmodded (1.90V GPU, 3.93V mem) and CPU cooler on GPU and ramsinks on memchips it runs 3dmark at 333/702 (would probably run at 715 but w/ artifacts)

over 700MHz for 4ns ram is pretty good result I think

http://service.madonion.com/compare?2k1=4269359

For everyday usage I lowered the GPU voltage to 1.75V and Vmem to 3.65V and its running at 320/650 now.

**spaceboy** · 08-24-2002, 01:48 PM

Originally posted by macci
I happend to grab one of these Abit Ti4200 64MB 4ns cards for the time being (killed my ti4600 and waitin for replacement). obvioulsy I had to test if its anygood

stockOC => 307..310 core / 621 mem
vmodded (1.90V GPU, 3.93V mem) and CPU cooler on GPU and ramsinks on memchips it runs 3dmark at 333/702 (would probably run at 715 but w/ artifacts)
over 700MHz for 4ns ram is pretty good result I think
http://service.madonion.com/compare?2k1=4269359

For everyday usage I lowered the GPU voltage to 1.75V and Vmem to 3.65V and its running at 320/650 now.

Great macci

could you mesaure the resistance of the pots on the two pots?

and please post some photo of the mod?

thank you

**macci** · 08-25-2002, 05:30 AM

Im using 1kohm VRs for both GPU and MEM. That is pin 11-14 on SC11012

Vgpu:
1kohm => 1.75ish
350ohms => 1.9ish

Vmem 800ohms => 3.65ish

I'd take a pic if I had a digicamera in here.

**UaZa** · 08-25-2002, 01:00 PM

Pics ;]

Ill vmod mine this week
she is doing 337/635
85w pelt on the core

**Bravo** · 08-25-2002, 09:22 PM

Originally posted by macci
Im using 1kohm VRs for both GPU and MEM. That is pin 11-14 on SC11012

Vgpu:
1kohm => 1.75ish
350ohms => 1.9ish

Vmem 800ohms => 3.65ish

I'd take a pic if I had a digicamera in here.

macci, got a couple of questions for you.
1. Whats a safe voltage for the 4ns package memory? (i want to push it, but not push it so i kill it).
2. What cooling did you use on the memory?
3. Can you damage your GPU with 1.9v ?

Also, my leadtek does 351/657 stock, can i expect any sort of increase when i use a Vmod?

**heilmery** · 09-03-2002, 08:45 PM

I have had my abit ti4200 now for about a week and a half and let me tell you i could not be happier with this card. My max overclock now is 327/662 looped 3dm2k1 20 times and no crash.

I am looking to do this voltmod as i believe i can get this card up to 350/700+ on air. Right now all i have done to the card is as3 on the core with stock hsf and memsinks pure copper home made my self that i took off my gf2ultra. Love this card.

Here is my compare on mado.
http://service.madonion.com/compare?2k1=4333893

**NextJin** · 09-03-2002, 10:04 PM

I just ordered the Abit Ti4200 from Axiontech.com and hope to get a descent speed increase with it over my o\c'ed Ti200 GF3. About how many fps extra will I get in the avg game with this over my Ti200? Im mainly waiting for the Omen.

Thanks

**spaceboy** · 09-04-2002, 01:27 AM

Originally posted by heilmery
I have had my abit ti4200 now for about a week and a half and let me tell you i could not be happier with this card. My max overclock now is 327/662 looped 3dm2k1 20 times and no crash.

I am looking to do this voltmod as i believe i can get this card up to 350/700+ on air. Right now all i have done to the card is as3 on the core with stock hsf and memsinks pure copper home made my self that i took off my gf2ultra. Love this card.

Here is my compare on mado.
http://service.madonion.com/compare?2k1=4333893

Nature first LOD4, Car LOD6, Drag&Lobby LOD3. These new dets let me overclock higher and give me the greatest results i have ever seen. Thanks nvidia.

how to have different lods in the test??

**X Men SS** · 09-04-2002, 03:19 PM

Go to "selected tests" and uncheck everythink exept Nature , then run benchmark with the LOD settings you like , then close the window which tells you that you don't have enough tests for result blablabla , and check the next game test with another LOD setting (of course uncheck Nature) run bench ... and s.o. ... when you have done all game test no matter in what order you'll get a score ...

**UaZa** · 09-05-2002, 02:11 AM

Please.. i NEED pics..someone who did the vmod post pleaseeeeeee^

xfx ti4200 64mb 4ns

**gooFly** · 09-05-2002, 03:20 PM

Hi,

I got a PNY GF4 Ti4200 and was wondering if anyone knows a way to volt mod it?

The back side got 3 small chips:

1st.
P22SG
74ACT08
data sheet

2nd
TL431C
21M
A754
data sheet

3rd
51031
74AI
data sheet

I know I had an own thread for this, but it kinda died. So I decided to see if I would get more answers here

gooFly

**UaZa** · 09-07-2002, 09:37 AM

just did the core vmod..
works fine... gonna do some real benchs this night.. now my ambient temps are not helping

so far @350 1.86v

edit: update - 355 for nature and 350 for others
1.9v

**UaZa** · 09-07-2002, 05:39 PM

yeww :]
360 on the core now ;}

15439 http://service.madonion.com/compare?2k1=4420375

i need another 5k vr!! ahhh ;p

**X Men SS** · 09-15-2002, 07:32 AM

OK , I've made a summary pic which contains the VMods with the values which macci has for everyday use (what do you think about it) :

**X Men SS** · 09-15-2002, 07:42 AM

I've made a smaller version (125KB) ...

**UaZa** · 09-15-2002, 11:42 AM

i used 2 5k..
one 5k vr for memory, other for gpu..

**X Men SS** · 09-15-2002, 09:37 PM

UaZa ,

What was your max memory o/c before and after the mod

???

**Marci** · 09-30-2002, 06:39 AM

Well, I just got my Leadtek Ti4200 A3-core MyVIVO 128Mb... 4ns chips on it... got me waterblock fitted & ramsinks...

Dunno what codes mean what on these buggers...
Ram is Samsung 205 TC40 (4ns assumption?)
Core is Q13278.1 0210A3

Have gone for the OCPC Atlantis Geforce4 Block as I need to do a review on it anyways, and just slapped on the Thermaltake Blue-SPikies for Ram cooling... am gonna seal em up and turn em into waterblocks when I get chance.... set it all up on a separate loop to my cpu.... sharing same 15-pint res, but using separate pump & radiator...

So, voltmods here we come!

**Marci** · 09-30-2002, 06:41 AM

Er... and forgot to max it out before puttin the blocks on so I have NO idea about it's stock scores... also, everyone's on about LOD3 - 7 etc, but all the software I've got doesn't give those figures... it goes from -0.3 to +0.3 or summat... what r ppl using to tweak these things!? Tried powerstrip and rivatuner but both give same LOD figures... am currently using Det40.71...

**X Men SS** · 09-30-2002, 08:16 AM

Hmm, I use RivaTuner 2 RC12 for tweaking and overclocking and got zero problems so far (with both - Det40.52 and Det40.71)

...

BTW what are the highest clocks that you manage to get from this Leadtek ? My Asus clocks only @ 317.3/621 watercooled+ramsinks, stock voltage .

**almus!** · 10-02-2002, 03:51 AM

well, well, well...

I think it is now necessary to summarize the findings of this fantastic thread...

I think everybody here is interested in Vmodding the ti4200, but the procedure is still not clear.

I'll try to summarize it and if I got it wrong or if my english is crap, please correct me! Bear also in mind that I don't know anything about electrical and electronic parts...

1) we all need to buy two 5K POT and some wire...
2a) the points to be used on the POT are the central one and one of the other two. we sold some wire on these 2 points.
2b) we should set them @ 5k using the voltmeter

3) we should take off the card from the PC
4) we should measure the values of the SC chips resistance using the voltmeter on pin 11 and ground
5) we should measure the voltages using the voltmeter on the "round things" reported in the pictures above

6) we should solder the wires of the POT to pin 11 and ground on each of the 2 chips.
7) we measure again the voltage.
8) we go up with the voltage using the pot till when we are satisfied.

now, it is VERY inportant, for a complete ignorant like me, to know if each measurement can be done with the pc on or it should be off....
please correct me if i am wrong!

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