Radeon X800 Non-Pro/X800 XL/X850 Voltmods

[Stormlord]

hi infrared

oh .. thats a really terrible with this shorted :(

which voltage had you used to get 480/610mhz?

greets
-stormlord-

[infrared]

I was using stock voltage on the core, because overvolting it didn't make any difference, even up to 1.7v, the memory was running at 2.10v and 2.45v i think. Not completely sure though.

Getting my Sapphire x800gto2 soon tho :D can't wait!

[TsvetanVR]

Hey guys . Is there anyone with X800XL and Zalman VF700 that can tell me how high on frequences he got ???
And what is the max safe temp where i must stop pushing mhz ?

P.S. I get to 425/580 without vmods at about 62C
P.S.2 Strange . In AtiTool on 580 memory i get lots of artifacts but in games and 3dmarks there are none

[Mussels]

yeah i had that setup. i got sweet fuck all, my cards a dud. i cant OC at all, or it just crashes randomly on me.

psst: ATI tool can have bugs ;) try an older version, or a newer one.

edit: mine died around 75C+ before it started playing up, now its at stock i've had it at 100C+ without issues :nutkick: i had a fan die, ATI tool said 100C, touched heatpipe, burned hand, said OMFG and stopped playing BF2 :P

[TsvetanVR]

I am using "The last stable version" on their site :)

Edit: I think to OC with Redline(Came on a CD with my Video) from now on!

[MaRiO]

Hi!

I have a question:

Could I make this vCore Mod to my Sapphire X800GTO Fireblade edition?

I have seen that my ATI have the same chip that the Sapphire that you put in the first page of this thread and I want be sure.

http://img366.imageshack.us/img366/5206/chip13zn.th.jpg (http://img366.imageshack.us/my.php?image=chip13zn.jpg)

http://img330.imageshack.us/img330/6196/chip23jl.th.jpg (http://img330.imageshack.us/my.php?image=chip23jl.jpg)

http://img330.imageshack.us/img330/7876/chip34sp.th.jpg (http://img330.imageshack.us/my.php?image=chip34sp.jpg)

http://img330.imageshack.us/img330/227/chip47et.th.jpg (http://img330.imageshack.us/my.php?image=chip47et.jpg)

Thanks!

P.D. sorry but my english isnt very good

[Urlyin]

MaRiO ... indeed it looks like it's the same .. i'd do the vid vmod if you are not soldering VRs ... let us know how you make out .. :)

[MaRiO]

MaRiO ... indeed it looks like it's the same .. i'd do the vid vmod if you are not soldering VRs ... let us know how you make out .. :)

ohh! thanks!

Can I understand that the VID Vmod is possible in my x800gto fireblade if I am not solder VR´s?

And you want that I say how I make the vmod?

Sorry, but how I said, my english is very bad and I dont understand you very well

If I am wrong, please, say me

Thank you very much

[MaRiO]

Can I make vCore Mod of this way?

http://www.techpowerup.com/articles/112/images/x800vid.jpg

http://www.techpowerup.com/articles/112/images/vidtable.jpg

I am interested in this vmod :) but i dont know how is the vid´s in this moments, (activate: vid 1 + 2 + 3 and vid 4 disactivated or vid 1 activated and the others desactivated...)

Thanks

[MaRiO]

nothing?

[Urlyin]

Mario .. from the article on the Vid vmod

The VID Vmod requires a conductive pen or jumper to work. Looking at the image above, labeled VID Vmod, we can ascertain our default factory voltage by the placement of the SMR resistors by using the VID table below it. The picture shows a card with VID code 01101, which is 1.35V. By looking at the VID Vmod pic we can see, that there are SMD resistors at VID1, VID4 following the lines from pins 10 & 7 and by using the VID Table we use a zero(0) to show a resistor is present, with a 1 meaning no resistor present. So using 1.35V as an example to up the voltage using the VID setting we would use the VID table to determine a higher voltage with the same two SMR in place like the 1.55V setting to which we just connect the solder pads at VID2 with our conductive pen. Which would give a VID code of 01001. Unfortunately this limits our choices and for those with a 1.40V default voltage means the next available VID setting would be 1.60V without removing a SMR. Of course all is not lost if you are using a Water Block for cooling.

[MaRiO]

thanks guy!

i must test with a voltimeter all the vids and of this way,and i will know if it is 010010 or 011001, or... - true?

Thanks

[Urlyin]

thanks guy!

i must test with a voltimeter all the vids and of this way,and i will know if it is 010010 or 011001, or... - true?

Thanks

No Mario the Picture has the layout and you need to verify the VID voltage by the chart to determine what your default voltage is ... then you can decide on which one to connect to up the voltage

[MaRiO]

and how I can make this?

Thanks

[MooSey]

Hey fella's

just carried out the pencil mod on my X800XL. I'd love to say I got 500/600 but alas i only got 465/535 (450/525 previous to mod)to complete 3Dmark05/06. Im sure i could push the voltage levels up but like the article sez, I don't wanna get greedy! Looking at some of the clocks here im sure mine's an old duffer. (AGP by the way).
My card has a Zalman VF700CU fan on board, temps never topped 45 deg C.
Thanks Urlyin anyway, a good article and well described. (I managed to get 1.45v on the R1597 solder pads with pencil, maybe I'll try the VID mod instead).
Any other mods/tweaks i can do to this card to prolong its soon to be upgraded limited life?

[infrared]

the R430 core really doesn't like too much voltage. I got nothing out of voltmodding my core. I did however get a significant increase on the memory. Went from 550mhz to 610mhz :D Thats using the maximum safe recommended voltages btw, and with an AC ATI silencer cooling the memory.

[Erasage]

Hi

I am new here on this forum and have a quick question about the VR voltmod. For the GPU vmod can I use a 5k variable resistor instead of a 10k? and can I use 50k variable resistors for the vdd and vddq mods.
The only problem I see for the gpu mod will be a higher increase in gpu voltage than when using a 10k VR. Applying the rule of thumb mentioned in the article, that a 10k VR will get you 0.04V increase would mean that when I start out at 5k I would probably get around a 0.1V increase?! Can anybody verify that? I am using water so 1,5V-1,6V should be fine.

When using the 50k VRs instead of the 20K VRs I would probably have to turn the resistanz down some more before seeing the same results as with the 20k VR, is that correct?

[infrared]

the 50k VRs for the resistors are fine, that's what i ended up using. But beware, you will be turning the resistance down, and at first the voltage will rise slowly, but after you get below 16k, the voltage increases very quickly. I nearly made that mistake with my x800xl, very easy to become inpatient, and start doing 3 turns at a time :laugh: - not a good idea :D

The 5k VR would be risky, it might work, but if you could get a 10k, it would be much safer.

[Erasage]

Could anybody check what voltage to the core they get when turning their VR to 5k ohms? Or maybe someone has some info on whta voltage the gpu gets with 6k or 7k?
Thanks guys

Ok I have measured the initial resistance for my Card and my multimeter tells me 0.433kohm which is 433ohm don´t know why it just doesn´t say the second one. Anyway I have done the math and since this is really nothing else than 2 resistors in parallel ->

R = 433*5K/(433+5K) = 398.5ohm which is pretty close to the R = 420*10K/(420+10K) = 403ohms mentioned in the article.

Since my Card has a standard VGPU of 1,42V 5K ohm should give me about a 36ohm drop which should translate into a boost vgpu of about 0.08-0.1V resulting in a vgpu of about 1,5V

I just really don´t whant to mess up my card so can anybody tell me if my math is right and is there really a linear correlation between the resistance and the resulting gpu voltage. Cause Infrared just mentioned someting about the voltage increasing quicker when the resistance is below a certain point??

[Erasage]

Well I did the mod and turns out the math I did was right:)

I did the vdd and vddq mods with the 50k VRs. Not wanting to trash my card with the 5k VR for the gpu mod I started out doing the pencil mod slowly dercreasing the resistance until I reached about 398ohm. From there I soldered in the 5k VR and all was good with the gpu getting 1,53V.

I am pretty happy with my OC. This is a X800GTO with 12pipes unlocked to 16pipes. Standard clocks are 400,490. No Voltmod I was able to do about 620,560 now with the voltmod and 1.6V to the core and Vdd and vddq @ 2.15V I am able to do 670,580:rockout: . Temperature on the core is max. around 48C

The ram even did 600mhz, but for that I had to lower the GPU clock to about 600mhz as well.

[infrared]

Great, nice job.

If you wanted a little more, the vdd voltage can go up a little bit. Maximum is 2.45v. I'm pretty sure that's what i used on my x800xl, and was getting 610mhz stable easily. What cooler is on your card? If the ram isn't cooled, you've got about the right voltage now.

[Erasage]

I am using an old cpu waterblock on the Card, Innovatek Rev 3.0, it used to be one of the best cpu coolers out there. I fitted some heatsinks on the rams. So maybe I can even up the voltage some more for the ram? I want it to be 24/7 stable and safe though.

I have attached some pics so you can take a look at the setup.
I am considering cooling the voltage regulators as they get really hot.

[Urlyin]

I am using an old cpu waterblock on the Card, Innovatek Rev 3.0, it used to be one of the best cpu coolers out there. I fitted some heatsinks on the rams. So maybe I can even up the voltage some more for the ram? I want it to be 24/7 stable and safe though.

I have attached some pics so you can take a look at the setup.
I am considering cooling the voltage regulators as they get really hot.

Where there's a will there's a way :toast: nicely done Erasage ... now you can post your pics here (http://forums.techpowerup.com/showthread.php?t=3401)

[Turrican]

Hi

Last week i got my new Connect 3D X850XT from the RMA.

the last one wasn't that good in ocing. i was only able to reach 615/595 /w mem-tweak and Vmods.

But my new X850 XT is a really good one. :D

Now i'm at 660/610 (only VGPU Mod, VDDR/VDDQ will follow).
The Card is watercooled and running with 1.73V.
I hope there's more room for ocing :D

in 3dmark 05 i already get ~7500 3DMarks :toast:

greetings Turrican:toast:

[Urlyin]

Hi

Last week i got my new Connect 3D X850XT from the RMA.

the last one wasn't that good in ocing. i was only able to reach 615/595 /w mem-tweak and Vmods.

But my new X850 XT is a really good one. :D

Now i'm at 660/610 (only VGPU Mod, VDDR/VDDQ will follow).
The Card is watercooled and running with 1.73V.
I hope there's more room for ocing :D

in 3dmark 05 i already get ~7500 3DMarks :toast:

greetings Turrican:toast:


Well done :toast:

[=ACID RAIN=]

Just wanted to post about the success of this mod, and also to thank the writers. All I've done is the vgpu mod, which is currently at 1.65v and passing 3dmark05 at 675MHz. I haven't found the limit yet for this voltage it seems :cool:

The memory at stock voltage hits 660 benchable, but haven't tested it thoroughly.

Seems like I've got a little gem here :D

[saber63]

just alittle confused, were using a rather large VR (100k-10k ohms) for adjusting the voltage, why not get a 0-1k ohm VR and slap it on the soilder pads that are giving me about 434ohms?

just curious
saber63

ps i love this post and the pics, mmmmmmmm pics :)

[infrared]

for the vgpu we're using a 10k - 0k VR, 10k gives slightly over stock voltage, and you just reduce the resistance to suit.

[saber63]

hmmmmmmm well this seems odd, im using air cooling (rather large though) and at 1.475V(1.45 loaded) i get only 52-53 degreas c thats with max oc before i think it runs out of voltage ( screen goes black) and it seems to go higher with more voltage, SO im curios to why i see a hard lock before artifacts, im coming from a 9700pro so it artifacted alot at high ocs. so um what should i do, i think it might be my power supples sucking, im not sure. should i do the igpu mod? i havent yet. i havent done any 3dmarks yet cause im lazy :P

im sorry if this is the wrong thread, new to this fourm, and most of these seem like there related to the volt mod.

thank you for your time

levi danzer

[Mussels]

X800 cards pretty much always hard locked instead of artifacting. I dont know the reason, but it happens even without voltmods.

[saber63]

oh ok, well that does make sense, its just alittle un called for :P your chugging along no artifacts, then BAM everything goes to poop.
thank you very much for that info, now i know! thank you very very much :)
i feel kinda like this now :banghead: hehehe. btw this mod works great! i was normaly getting about 560/600 now ive gotten 596/612

oddly im giving my card 1.475 volts on air, and when i give it a load, it jumps to 1.5v!!!! but i still am not even hitting 55oC yet, so is it safe for more voltage? or not?

thank you one last time
saber63

[Mussels]

I cant help more here, i moved on to an x1800 a few months ago so i'm outdated on x800 details :D

[infrared]

There is no "hard lock" on the cards, If the card is crashing before artifacting, set the highest *stable* clock (as in, no black screen), and leave the 3d view open overnight. Sometimes it takes a few nights to do, but eventually the core will bed in and stop crashing. The problem lies with a faulty core, and performing a long 'burn in' can often cure the problem. Sometimes on the old x800gto2's that had the 4 pipes locked would be ok with 12pipelines, and would start crashing before artifacting when the previously unused pipelines were unlocked. The problem goes away with use.

Voltages...

Try pusing up to 1.52v, as long as the temps are ok, it should be safe enough.

[Mussels]

! is that true infrared? maybe i shouldnt have given up on my x800XL after all....

[infrared]

Yep, My x800gto2 used to crash at 560mhz, and after about a week of heavy gaming, plus leaving atitool open overnight the problem went away. I'm not sure it will work in all cases, but it's deffinatly worth a try.

x800xl, r430 core... only ~50mhz overclocking potential. I had one, the memory was good on it, but i'm glad it died tbh :D

Edit: come to think of it, my x800xl had the same prob when i first got it... very strange.

[Mussels]

i'll keep that in mind that long burn ins are a good idea for those cards then. my x800xl never OC'd well at all, it just hard locked.

[vudoo]

Hi. I soldered a 10K pot for the GPU. My stock voltage was like 1.403. After mod, it's 1.462. I'm turning the pot to the right and it's not changing my voltage at all. Am I doing something wrong?

[infrared]

How many turns is the pot? I've got a 22turn pot on mine, and it takes roughly 10 turns before anything happens, so you're probably not doing anything wrong :)

Don't get impatient with it, it's really easy to do 5 turns at a time between measuring, and end up frying your card when the voltage does go up. If you can, get a friend to hold the probe of the DMM to the measure point while you adjust the pot, or you can soldier a wire to the measure point like i did.

[AK]Zip:

I've had a look at your card, and i can see your prob. Looks like the points to place the VR's are there, but the measure points are no-where to be found. I'll give urlyin a shout and see if he knows where they are on that card. Hold tight bud ;)

[vudoo]

It's a 15turn pot. I'm turning to the right (clockwise) and I don't see an increase in voltage. Is the pot supposed to make a click sound every 1/2 turn?

[vudoo]

Nevermind. I figured it out. I used the wrong "leg" on the pot. Hehe.
Got the GPU at 1.701v right now w/ WC and 2.08v VDD w/ pencil trick. Gonna see how high of an OC I can get.

[vudoo]

Did artifact check w/ ATI tool... Started artifacting like crazy. Hmm...
This was at default speeds. =/

[VRoman]

Hi everyone!
I just did an unsuccessful vddq mod to my ATI X850PRO. As soon as I set vddq to 2.3v and ran 3DMark my videocard died. Now it keeps vddq voltage at 1.0v instead of 2.1v no matter what. No picture on the screen, just a bunch of flashing squares. Once every now and then it comes back up to 2.1v for a few seconds... but I can't make it stay there. :( I have another identical card with missing memory chips that I can use for spare parts. Can anyone help me to figure out what needs to be replaced? I think its either the chip that I soldered the resistor to, or one of the two vddq voltage regulators located on the other side of PCB. Is there anything else that could get fried so easy?

[Mussels]

*whimpers in teh corner* bad luck on hte mod man, but really... i dont think swapping parts will get you anywhere. It's very rarely attempted.

Have you completely removed all traces of the mod to see what happens?

[VRoman]

Yes, I removed everything. You can barely tell that there was a GPU voltmod. I'll probably send it back to ATI for repair if I can't find anyone in Albuquerque who can swap the chips. Since I was using water cooling, I think there was not enough airflow over the voltage regulators and they got overheated to the point of no return.

[gooner45]

Firstly, I followed all the instructions in the article correctly checked my vcore to be 1.42v and I soldered on the 10k vr perfectly. Card does not post at all now. Checked voltage and its down to like .90v now. My resistance went from 431ohms to 409 when I put the vr on. I'm so confused now.

Any advice on what might have went wrong?

I had a waterblock already connected to the card so I was good to go.

Do you guys think I"ll be able to RMA to ATI if I can get the traces of the solder off?

[Sasqui]

Question - the mesurement points for VDD and VDDQ as shown here:

http://www.techpowerup.com/articles/overclocking/voltmods/112/3

To measure voltage, you need two points (overstating the obvious) - where is the second measuement point? Is it simply across the capacitor?

[ViperJohn]

Question - the mesurement points for VDD and VDDQ as shown here:

http://www.techpowerup.com/articles/overclocking/voltmods/112/3

To measure voltage, you need two points (overstating the obvious) - where is the second measuement point? Is it simply across the capacitor?

Common ground which is where the minus side of the target caps you are metering trace to. Easiest place to pick ground up is by clipping your DVM's negative test lead to an unused I/O female adapter (where your monitor connector retaining screws thread into ).

Viper

[Sasqui]

Common ground which is where the minus side of the target caps you are metering trace to. Easiest place to pick ground up is by clipping your DVM's negative test lead to an unused I/O female adapter (where your monitor connector retaining screws thread into ). Viper

I thought perhaps that was the answer - Gracias, Viper.

[roms]

Hi

i had moded my GPU to 1,6V.
Now I will mod my MEM too. I had done this VDD and VDDQ mod, with 2*20kOhm.

http://www.techpowerup.com/articles.../voltmods/112/1

But at the mesurement points, I can`t see a raise up of the Voltage from 2V to ?V
Is this mod only for PCIe cards or for PCIe and AGP.
Has someone done this mod at a x850xt AGP card?

[VeDz]

:) i am going to revive an old thread :)
heh

anyway ive voltmodded my ATi Radeon X800XL 256 mb.
All of it, VGPU, IGPU, VDD, VDDQ. All pencil skills (took me 2 days to get those skills lol)

My gpu clock is running at 440 mhz with the mod :s at 1.53V. Quite weird :S
However my memory is ok i guess, stable at 582mhz.
But i think im providing too much voltage in VDD and VDDQ.
Around 2.3V each.
Is that high? risky? considering I have stock cooling only.
My temp on load runs 70+ and idle is around 42. This is one of those HP cases...so inefficient. I would get some fans but I don't know how to cut aluminum. The temperature used to happen b4 the mod as well but I think it has risen a few degrees like 4-5 since the mod.
Also, the ram chips are sorta hot underload, I would have to say as hot as the aluminum heatsink of the GPU. Is that a bad thing?

Anyway, I would like to increase my GPU mhz.
With the voltages I am at I think I should be getting higher mhz am i right?

Also for some reason i got a lower 3dmark2005 score.
B4 when i was running at 429/550 i got 5500
now 5300.
maybe its the cooling.
thanks in advance

[VeDz]

^bump^

please help out :cry:

[infrared]

Yeah, 2.3v on the memory, when it's not being cooled is a little high, i'd drop back to 2.2v until you get a better cooler that cools the memory.

The gpu overclock is typical of an R430 core, even when you feed them more voltage, you don't gain a lot. I found i gained the most from keeping it cooler rather than increasing the voltage.

The 3dmark score could be a fluke, did you have any other programs running in the background?

[VeDz]

ah i c. i will try the 3dmark05 again.

but gettin around a 7mhz increase for increasing it to 1.53 sucks. I am just gonna put it back to normal again.

also ill put the vdd back to 2.2V but what about the VDDQ?

and if i do the VID Mod on top of all these things will I get atleast 30 more mhz?

one last thing. when I start my comp and the gpu temp is below 30 and takes a while for it to come, i can crank it up to 480core and 600 mem but as soon as it goes over 70 which is like 15 secs after the OC i get artifacts but for the 15 secs there were no artifacts even when the temp was 69. So i am guessing its all because of the cooling.

Would you mind recommending me a good air cooler for the card preferbly in the Canada region.

thanks

[regan1985]

can any1 tell me if the pencil mod will work on my x850xt pci, as i have tried to mod the gpu and didnt work and i have been told the only mod that will work is a solder mod?? is this true?

[Urlyin]

unless you have the resistor the pencil mod does not work...

[regan1985]

so i have to solder then?? is it a doable mod for some1 who hasnt got much soldering experience

[Urlyin]

so i have to solder then?? is it a doable mod for some1 who hasnt got much soldering experience

Try to practice an old mobo or vid card till you get the confidence to try it on your x800... there are soldering how-to's out there, maybe check one of those out, but until you get in some trial and error, I wouldn't attempt it ...

[UnexplodedCow]

I've been looking around on the forums, but can't find any info on how to mod my card. It's a blue Sapphire X800GTO AGP, R480 core, 256MB 1.6ns mem with a rialto bridge. thing is, none of the caps or resistors on the board are numbered, and I've been looking. at best, the polarity sign for the caps is present, and component layout shapes, but nothing else. I did manage to find my VDD and VDDQ thought, both being at 1.99 volts, which is a little low from what I've been reading, which would explain why my card won't do beyond 550 OC, and other times it might do 590 for a month, then croak at random. The core is dang stable, pushing 570 no problem. I run it @ 560 just to be somewhat nice. I'm not really interested in pushing the core more, but I was hoping to get the ram speed up....anyone have info on modding my kind of card?

[Muk]

Did this mod on my x800xl, great guide! Previously i could get 425/530 stable. Upped VGPU to 1.43 with VID mod (.3 overvolt) but didnt see much increase, about 5 mhz. Upped it to 1.58 with VID mod (using just a pencil, no conductive paint needed) and it went to about 450 stable. Works at 460 in some games. I am using the stock cooler but it is a pretty good copper and 2 heatpipe cooler. This is on the AGP version. Under 70 load.

The mem I was unable to raise above 2.06 using pencil mods. No matter how much pencil I put on, couldnt get the resistance lower than about 98 ohms. This didnt seem to help the mem OC. Upped VDDQ to the recommended 2.17. Didnt seem to help the OC by itself.

I am curious if lowering voltage, and thus temperatures, would help me OC better. I read about someone in here lowering core voltage, having difficulties doing so, but eventually getting it working. If you are still here, would you mind elaborating on how you were able to undervolt? I assume you can only undervolt the core?

[UnexplodedCow]

Well, lowering the voltage does lower temps due to less current leakage, but amperage needs climb. After so many amps the power controller on the card will go into lockdown, as far as I've learned, freezing the card, giving the checkerboard pattern on the screen. Volt modding, in my understanding, somewhat tweaks the voltage controller to provide more voltage, using less amperage, so it won't go into lockdown as quickly. As we all know voltage+amperage= wattage. While lowering voltage may lower temps, it won't help with overclocking. The best bet to lower heat is to just put on a good heatsink.

[ny_driver]

Hello there fella's, here's my report on the VoltMod.

I started out with a Club3D X800XL with 256MB of 2,0ns ram.
Standard the core would show artifacts at 450MHz, so I kept it at 440... but wanted more :cool:
The mem was of surprising quality and was running happily without any mods or cooling at 580MHz... I didn't hit the ceiling yet :eek:

So, the list-'o-facts:
Before the mod:

Vdd = 1.81 v
Vddq = 1.88 v
Vgpu = 1.41 v
RVdd = 1140 ohms
RVddq = 850 ohms
RVgpu = 436 ohms
RIgpu = 39.2 Kohms

After the mod:
Vdd = 1.952 v
Vddq = 1.999 v
Vgpu = 1.671 v

Below I will list only the value of the resistors that I added, you can calculate yourself what the actual resistance and Delta resistance on that spot is.

RVdd = 10.5 Kohms
RVddq = 14.45 Kohms
RVgpu = 2.29 Kohms
RIgpu = 250 Kohms

The Igpu resistor I left at 250 K because the GPU didn't crap out at 1.671 v.
Even adding the 250 K will lower the overal resistance so it nudged a little in the right direction anyway.

The pics!

Here it all begins, multimeter, tools, glasses and spare hard drives... just in case :)

http://www.xs4all.nl/~eikelman/projects/x800mod/1begin.jpg

Prepared the connectors for the resistors, so that they may be removed and installed when needed (I hate permanent solder mods).
In the top left corner you can see the WC blocks, ready for mounting when my Venice comes in :p .

http://www.xs4all.nl/~eikelman/projects/x800mod/2snipsnip.jpg

Thos tiny little islands are too friggin... tiny!!! :mad:
But seemed to work...

http://www.xs4all.nl/~eikelman/projects/x800mod/3tiny.jpg

Soldering to the chips was a lot easier, just hope no crap flowed under the chip...

http://www.xs4all.nl/~eikelman/projects/x800mod/4mem.jpg

This is how the connectors are mounted and how the resistors will be inserted into them.
You may wonder how I will keep them apart...

http://www.xs4all.nl/~eikelman/projects/x800mod/5premount.jpg

Well, like this! Some stripes to identify what goes where... simple as can be!

http://www.xs4all.nl/~eikelman/projects/x800mod/6mounted.jpg

And this was the final setup.
Testing per resistor was easy, just put in little blue block, turn on pc and measure.
While the pc was on I adjusted the screw and saw the voltages change to what I wanted.

http://www.xs4all.nl/~eikelman/projects/x800mod/7adjusting.jpg


I'm sure the voltages can go higher with some fiddling and trying, but right now I'll leave it at a safe setting (at least I think it's safe :confused: ).
Benches will follow after all work is done :)
Until the WC and ramsinks will be installed I removed the resistors not to stress it too much, obviously I won't just leave it running with the mod 24/7 sans cooling :cool:

Oh, while you're at it, why not take a look at my WC setup!
It's at My WC project (http://www.xs4all.nl/~eikelman/projects/watercooling/)
Forgive the crappy HTML, modding is my game, not art :cool:

Qustions? :cool:

Urlyin: Sorry for not trying the graphite mod... :o

The next thing I am working on is to make the mod switchable!
I had a LCD display switchable with a signal from the printerport, but it's not stable or reliable enough to try it here, but a normal switch could do the trick! (switching 3 seperate rails with 1 flick of course)... working on it ;)

WOW,...nice mod!!! I wish I knew what I needed to do my card exactly like you did. I'm afraid I do not know how to figure the necessary things out( I'd be really happy if you would help me...looks like you really know what you are doing.

[UnexplodedCow]

Aye, that's a nice volt mod, man.

[Casheti]

Very nice indeed.

[ny_driver]

I guess I got it figured out on my own, but it would be a waste of time with my current MOBO, CPU, and PSU. I'll get back to this project in a few weeks when I can afford to replace the aforementioned components.


Happy New Year everyone:)