i need some volt mods for an x700pro (saphire, toxic (ed))
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i need some volt mods for an x700pro (saphire, toxic (ed))
Can you post some pictures of the front and back of the card please.
Srry no digi came...i will look online to see if i can't find any...i think that is the refernce board/design though
i can fix pic for you later, but i got a connect3d and the pics wont be high res but i can fix a close look to a area if wanted
dont laugh at the tiny stock cooler :)
http://upl.silentwhisper.net/uplfold...4/P3050002.JPG
Can you tell me what is written on the chips I have marked please.
http://www.xtremesystems.org/forums/...id=25875&stc=1
Also, can someone try to get some pictures of the back of the card as well please.
sure can fix a pic of the backside and fix the chips later but now im of for some gaming :) got the card earlyier today and havent had any time to game :)Quote:
Originally Posted by persivore
bottom left chip:Quote:
Originally Posted by persivore
RT1973A
CL55M90M
top left chips:
D39AT (there's an italic "f" in front of this line but I think it's just a logo?)
FDS
7096N3
top right chips:
4804
0312
Here's some detailed shots of the card. x700 Pro
Please don't download this file unles you need the pictures to help with the mod... you will kill my connection as the file is 20mb.
Here's some measure points for a Sapphire x700pro 128MB
http://www.techsweden.org/marquzz/x700/vgpujpg.jpg
And here's a pic of (where I think) the chip controling vgpu and the surrounding area. Tech-gurus be welcome to take a look ;) (click image for bigger)
http://www.techsweden.org/marquzz/x700/vgpu_area_tn.jpg
Thanks. It looks like the chips on the top left and right are the MOSFETs for the regulators, but I can't find any information on the RT1973A chip, but I don't think its important.Quote:
Originally Posted by gocchin
Thanks for the pictures. It looks like the card is using 2 ISL6522 chips for the regulators. Can someone measure the voltages on pins 5 and 8 as marked in the picture, so that I can find out which chip is controlling which voltage.Quote:
Originally Posted by docah
http://www.drunken-student.co.uk/tom...20vc%20005.jpg
I also think the FB/Pin5 is interresting for this mod.
It is also possible that one is for VDD and the other for VDDQ.
The one closest to the front is vddr and should be ok witha 20K vr FB to GND., the one next to it is for VDDQ and should be fine w/ a 50K VR FB to GND. I couldnt find anything on it just yet but the SP61 32CU chip is definately controlling vgpu.
-CaT
ALSO btw persivore, none of the vgpu, vddq, or vmem is going to be on the front of the card.
So for those with no soldering skills, where do we pencil? :)
could someone pls post a picture with all the places to solder on to vgpu and vdd, whats vddq?
The Vgpu is controlled by the SP61 32CU, which is a sipex chip, the SP6132.
http://www.sipex.com/products/pdf/sp6132.pdf
Pin 4 of this chip is the feedback pin, so this, or something connected to this pin will be the mod point.
Thanks alot for the info on that SP61 chip persivore. Anybody want to be the guini pig on this one? NOTE: Check resistance from pin 4 to GND before soldering. Then solder the 20K in circuit and measure it again. If its lower youre going to need to use a larger VR, if its higher then just leave it at 20K.
http://img120.exs.cx/img120/3400/vgpuarea8py.jpg
-CaT
This is the vddr mod. Again check resistance from pin 5 to GND, solder the 20K in circuit, and then check it again to make sure its the correct resistance which i belive it is. Use the checkpoints Marquzz posted above to make sure the mod is working and to check the voltage.
http://img108.exs.cx/img108/4456/closeupvc0081of.jpg
-CaT
Nice work CaTalyst.X, but don't you think we should advice the first person who would like to try it to start with 100k VRs instead?
It's better to be on the safe side. Either way, be sure to have 20 turn VRs and turn them slowly and check voltages carefully.
Yeah maybe for the vgpu, but thats why i really stressed checking the resistance. For the vddr, 20K should be more than enough. But like i said, check the resistance just to be sure, takes 10 seconds max and could save your card :D
-CaT
HA HA HA this is great i just got linked to my own thread here from ocforums.com....i will check voltages when i find my DMM...it has kinda walked off on me agian. So i will have those voltages for you.
You dont really need to do the votlages :D I linked u to this thread at OCF :D Just check the 2 pics i posted above.
-CaT
Yeah i know lol that was great thnxs REALY looking into this for me...to tell you the truth i forgot ALL about this thread.
O yeah i will be the guni pig BTW...i should have to mod done by the end of the week...i need some better cooling for the core and ram though...i am going to get a stock p4 or AMD hs then cut up the toxic hs for ram sinks that should work allright to cool it until i get my wb and chiller here...
yeah please post pictures of it when ready, im thinking of trying to vmodd it myself later on
http://img120.exs.cx/img120/3400/vgpuarea8py.jpgQuote:
Originally Posted by Steven
You can use the pin just below the yellow one, pin 3.
But the pins look small so I strongly suggest finding another ground, should be plenty of them on the card. Just measure on some of the larger spots.
I would reccomend using the grounded solder point of one of the electrolic capacitors. They are thru hole caps, just probe between the leg and GND on the resistance setting and see if it "beeps" if you dont have the beep function on your dmm, it should read like .002ohms resistance
-CaT
No need for that. The 20k trimmer should be enough for this mod, even a 10k will be ok. This is the old ISL6522 that ATI has been using for their cards for Vmem, including the 9500, 9700 and 9800 series.Quote:
Originally Posted by crotale
Yeah but the 20K is needed IMHO. Just go with 20K and work from there. On the SP61 chip youre guess is as good as mine.
-CaT
I'm just saying that it might be a good idea for the first person to try a larger one to be on the safe side.Quote:
Originally Posted by Malves
I also think that the appropriate range for "our" VR is more dependent on how ATI (or the manufacturer) has chosen to implement the feedback circuit around the IC.
If it makes you feel better, go ahead. But I guarantee it is not needed.
is there no other vmod out there? think it is pretty hard to solder on pins so much easier to use other spots like solder spots and so on, really not complaining on you guys great job that you found a vmod but ust wondering if theres no other way to do it on? like a pencil way or a easier one?
I'll look over the pictures again later and see if I can find an alternative solder point for the Vgpu mod.Quote:
Originally Posted by Snowman89
If someone can get a resistance reading between pin4 on the SP61 and ground, and pin4 and the Vgpu read point, I will work out the exact value VR you need to use for the GPU mod.
Edit: pin4 (feedback) appears to disapper to another layer of the PCB, so I can't see where it is connected to :(
Yeah PIN 4 Disapeears into another layer, however you may be able to set DMM to continuity and probe between pin 4 and points that are close to it on the board to see if there is an alternate mod point. LOL bro thats pretty cool if you can work out that VR from just that info :) How are you gonna do that?
-CaT
I can use the formula for a non-inverting amplifier (which regulator basically is), 1+(Vin*(Rfb/Rg)) to work out the gain that the regulator has with different resistors and thus how much voltage the regulator will give out, where Rfb is the resistor between the Vgpu supply and the feedback pin, and Rg is the resistor between feedback and ground.Quote:
Originally Posted by CaTalyst.X
HEHE Thats over my head bro, do you have a background in Electrical or Computer Engineering?
-CaT
That is also over my head i am in a Tech Elec class at school (it is my whole school day)...we are just getting into making amps and so on...i will take a good look and find if i can't find any other points to boot....
I'm studying electronics at college atm, and I'm going on to study electronic engineering at uni after that.Quote:
Originally Posted by CaTalyst.X
the amount of current that will be running from pin4 on the SP61 to the 20k trimmer wil be pretty minimal right?
so a single hair-thin (copper) wire solderd on the 4th pin should be enough right? (possibly secured with some epoxy)
edit : if someone dusnt beat me too it i'll messure the resistance as persivore asked when i get my multimeter but that could be a while yet(week/week and a half.)
Welcome to the forum :)Quote:
Originally Posted by the_countess
The current flowing through the pot/wire shouldn't be much more than 5ma with the pot at quite a low resistance, so a single strand of wire will be fine. I've found that thin enameled copper wire works well when trying to solder to very small areas like pin4 on the Sp61.
U should strip a IDE cable :)
-CaT
So whats the status on this now?
well im waiting for my multimeter to be deliverd
but if you have one i'll be happy to let you have the honor of being the first to do it. :)
exectly what i had in mind and the reason i asked. and using a ide kabel is a good idea, then it will be insulated right awayQuote:
I've found that thin enameled copper wire works well when trying to solder to very small areas like pin4 on the Sp61.
thx for the welcome btw :)
so for the vmem mod i need to solder on one of the pins in the picture and then to ground?
whats the max safe voltage to run?
what is this ide cable thing your talking about?
NOOOO!Quote:
so for the vmem mod i need to solder on one of the pins in the picture and then to ground?
well yes, but you NEED to put a (ajustable) resistor between the pin and the ground. 20k atleast to be safe.
if you just connect it to ground you'll blow up your card most likely.
the idea is that you bleed just a bit of power from the sence line so the voltage controler thinks its not giveing the memory enough. the resistor is there to make sure only a little is bled.
and you want it ajustable so you can decide what you want on your mem.
the idea of the IDE cable is that its a nice cable to strip and use. you'll have a thin copper cable thats shielded (to prevent shorts) thats ideals for soldering on small pins.
yes of course a resistor between :p: forgot to write it ust :cool: so this guide works and theres no risk of destroing the card if i ust do it right, like you maybe selected the wrong pin and so?Quote:
Originally Posted by the_countess
whats the max volt i should run on the memoryies?
http://www.samsung.com/Products/Semi...K4J55323QF.htm
The max spec to put at these is 1.91V. 1.95v sounds good ;)
lol, then its no need to vmod because stock voltage is around 2.1vQuote:
Originally Posted by MikeMurphy
ok presuming i had the correct ground (the minus side of a condensor, had the same reading as the plate at the front, you know the one with the vga connector and stuff.) then i got :Quote:
Originally Posted by persivore
pin4 to ground as 739ohm
and pin4 to vgpu read point as 743 or 742ohm
(measured with the card OUT of the computer)
would that make any sence?
im a bit wurryed and i dunu if its correct because if i turn probes around (put red where i had black befor and visaversa) i get a ohm reading starting somewhere at 1200ohm and increasing all the time
or would that make sence too? (new DMM so just making sure)
edit2 : saw in the spec's pin3 is ground too and used it to check my chosen ground, and it checked out. so above reading should be correct.
p.s. i read in the specs that if the Vfb (aka pin4) "drops 0.25volt below the positive reference" it asumes there is a short and enters "huccup mode"
http://www.sipex.com/products/pdf/sp6132.pdf (page 3)
dus that mean a max overvolt of "just" 0.25v? (probably less to be safe)
Quote:
Originally Posted by the_countess
Thanks for the readings. The different values with the probes connected differently are probably due to capacitors on the card charging slightly from the voltage the DMM probes give out.
A 20k variable resistor between pin4 and ground should be fine, and should give a 1.96% voltage increase above stock voltage at maximum resistance.
I'm not totally sure about the short circuit protection, but I don't think there will be a problem setting more than 0.25v over stock. I think that the regulator compares its internal reference voltage of 0.8v to the feedback pin, which will be fixed at 0.8v in normal operation by the regulator, and should only fall below that level if there is a short.
thx :) i'll try the mod this saterday, (its late now and i'll be away the next 2 days)
could you do the same for the VDDQ?
only problem is i dont have a measuring point for the VDDQ. cant find any info on it either.
on x800 card ppl are using a 20k variable resistor for it, but here a 50k was recommended.
now i dont have a 50k but i do have a spare 20k.
i could temporaraly use a 2de 20k and put it in serial with the first and see what voltage returns i get at different resistance levels.
and if im happy with the voltage at a lower resistance then 20k i could remove the 2de resistor.
but either way i'll need a VDDQ measuring point.
Pin 8 on the ISL6522 should be connected to the Vout of the regulator, via an inductor, so should effectively be connected to the Vddq read point (becasue at DC the inductor acts as a wire).Quote:
Originally Posted by the_countess
ok i followed your directions and VDDQ seems to be the bottem part of the component below the VDD measure point as seen here. (was actualy the first thing i tryed hehe)
*had a pic here, removed to keep post size down, same pic after editing below*
looking at the example in the ISL6522 PDF i could have figured it out myself i later realised. o well. :)
could you do the same calculation you for the VGPU?
here's the numbers
VDD
pin5 to ground 957ohm
pin5 to VDD measure point 1023ohm
VDDQ
pin5 to ground 771ohm
pin5 VDDQ measure point 779ohm
edit : found eazyer... well atleast less risky solder point for the VGPU volt mod.
i'll edit the above picture and add both VDDQ measure point and the new solder points in a minute.
edit 2 :
http://www.system666.demon.nl/x700vmods.jpg
(is the new solder point clear enough?)
hard to tell, looks like the edge closest to the SP61 chip of the SMT resistor pointed out?
-CaT
where's the vdd soldering point?
edit: for the vgpu and vdd mod it is 20k right?
btw vdd is vmem, right?
20K for the Vgpu will be ok.
For the Vdd mod: 20k between pin 5 and ground, giving a 2.4% increase in voltage at maximum resistance.
VDDQ mod: 20K between pin 5 and ground, giving a 1.95% increase in voltage at maximum resistance.
i changed the picture a bit. its now a arrow, should be clearer
vdd = vmem yes.Quote:
where's the vdd soldering point?
edit: for the vgpu and vdd mod it is 20k right?
btw vdd is vmem, right?
the VDD and VDDQ solder points arent on this picture. nor do i have a decent enough camera to make a one.
but if you look at the picture and go left on your card you'll see 2 relativly large chips.
pin5 on those chips are the solder points for vdd and vddq (pin 5 is the 5th pin on the bottem row counting from the right.)
hold you card as in the picture, then the right most chip of the 2 is the one controling VDD and the slightly lower chip on the left is controling VDDQ.
if you think the pins are to small to solder to you can look at pin 5 and see the trace from it going straight down. it'll go directly to a component on both chips. you can alternativly solder to that althou they are pretty small aswell.
thx again persivore
soldering iron is warming up as i type. :)
edit :
i'll see if i can make a decent overview of all the points of interest on the card using the detail shots docah has so kindly hosted on his connection.
edit2 : unfortunatly theres no straight down overview shot with both areas clearly visable
docah : if you reading this could you make one?
could you please post a picture with arrows with what to solder and where :)
what is vddq for?
could i use a 10k for any of the mods?
what should be max voltage for the memory?
dont belive really 2v is max as one wrote because i got 2.1 as standard
SUCCES!!!
with all 3 set to exectly 20K i get these voltaged
VGPU 1.87v VDD 2.18v VDDQ 2.18v
default for VDD and VDDQ was 2.1 but i forgot the measure to default voltage for the core. (anybody know the default?)
still @ stock cooling (watercooling on the way) so im still gona be pretty conservative with VGPU for the moment but i'll see how high i can clock it now.
*edit temps when ever 90C with these voltages, normaly they'd stay at almost exectly 60C under full load.
so if you want to stay with stock cooling i'd recommened putting a extra 5k ohm in for the VGPU or something.
as for max voltages.
that totatly depends on your cooling, your nerves and your modules. hard to say really.
keep a eye(or finger really) on the modules temperature, make sure its not baking.
then make sure the modules can handle the voltage.
set voltage too high and some modules could start making mistakes even on default speeds.
just increase slowly step by step and keep testing using ATItool for example.
VDDQ is the input/output voltage of the memory system. so VDD controles voltage inside the modules and VDDQ is the voltage for outside communication. they should be and stay pretty simular with VDDQ never exeding VDD.
lol, then something is seriously screwed with mine vddq, vdd is 2.032 and vddq 2.3Quote:
Originally Posted by the_countess
edit:my vgpu is 1.4v stock so 1.87 seems really high
yup i just realized that. i removed the VGPU mod and it reads about 1.36V now.
lucky for me i bought a extra 20k resistor for use with the VDDQ, but since i wont need it for that now i'll use it as extra for the VGPU.
dus your X700 have DDR1 or DDR3?
mine had DDR3. ddr1 has different voltage requirements.
im 90% mine has ddr3 how to check that?Quote:
Originally Posted by the_countess
edit: i got ddr3
I'll check my maths for the Vgpu mod
maybe the other solder point i used isnt exectly the same as pin4 eventhou its the same when the power is off?
could that acount for the difference?
If the point reads 0 ohms between itself and pin 4 it should be connected when power is on and off. I'm thinking that the problem could have been due to resistance from other components because you were getting different reading when the multimeter probes were different ways around.Quote:
Originally Posted by the_countess
could someone pls explain to me why my vddq is higher than my vdd?
not really snowman
was the default that high aswell?
check solder points,(measure from the solder point to the pins next to it for a short) check the resistance on the trimmers (you'll need to disconnect them from the card to do that thou) did you set the trimmers to exectly 20k befor you solderd them in? if you didnt do anything they'll be at 10K most likely.
i added a extra 20k resistor to the VGPU and now i got 1.6V on the core.
still pretty high but a lot more reasonable.
a 50k trimmer should probably be the recommendation from now now for the GPU.
temperature with stock cooling goes up to 71C (default was 56C) under full load.
but it dus work. 530mhz core (default 425mhz) works now artifact free where it would crash instantly befor. (got to 490mhz befor vmod)
hehe use a 50K VR for vgpu :) *slaps persivore on the ass* we did it bro :)
-CaT
i havnt vmodded it yet
so 50k for the vgpu, would that work on the other solder point to?
yes
-CaT
:cool:Quote:
Originally Posted by crotale
crotale > persivore :P
-CaT
and then 20k for the vdd, if i do vdd do i have to do vddq or is it no affect ust doing vdd?
edit: from pin 5 of ISL6522CB to ground with a 20k between?
and then 20k for the vdd, if i do vdd do i have to do vddq or is it no affect ust doing vdd?
edit: from pin 5 of ISL6522CB to ground with a 20k between?
if i use a 10k for vdd im gonna have 2.2v to start with if the resistor is turned to 10k and standard is 2.1, right?
bump, need answers if i can use a 10k and if it is between the pins i wrote
The Vdd mod is between pins 5 and ground. It would be best to use a 20k VR so that you don't put too much voltage into the mem when it is at maximum resistance.
okey but if i use a 10k set at exactly 10k i would start with 2.2v right? that is if the vdd is 2.1 standard, i only have a 10k here now so im hoping it will work as im gonna do the vdd mod later today or tomorrowQuote:
Originally Posted by persivore
...or you can dig up a 5k-10k and put it in series with the VR
ust have 1 10k, well i found right on elfa now so im gonna order the right ones, first i only found some that cost 8dollar each but now i found the right with half the priceQuote:
Originally Posted by crotale
could this link work for the vdd? its the same chipp and so!
http://www.rojakpot.com/default.aspx...ar1=108&var2=0
Replied to the PM snowman.
It should work, but just take the voltage up slowly. Pencil mods can be a bit unpredictable sometimes.
i am going to do the mod once i get my chiller finished up hopefully next week...i also am ordering a 3500 clawhammer as my 3000 winnie sh*t the bed... :( the X700 is going to be cooled with the chilled water hopefully i will have an X850XT PE killer (hey i can hope!!! DONT BURST MY BUBBLE!! lol jp...)...but it shoul be pretty fast as right now mine is on par with a x800pro at stock...so not to shabby...btw i am making the block "almost" like the nv-68 as i have 128 ram so it is only on the front i will post pics and so on...
BTW what are some safe voltages for below -20 deg? i am hopping i will be running around -40 but -20 at the least so what are some safe mem and core voltages?
I would say even at -20/-40C dont take it above 1.7, the 0.13 chips just cant handle much more than that at any temperature. Ram i wouldnt go much over .25 above stock. These are if you are planning to keep the card, if you just want to bench it then toss it, i would say cranke em up :D
-CaT
I thought that the X700 like the X800XL used .11nm? And temps that low you can only go that high with volts?!?...hmm ok...does any one else have any input (not saying you are wrong by ANY means...that just seems like a VERY small bump...)BTW the card is only untile i get an x800xt or until the Fudos come out...
Dragon
they are .11. And I wouldnt go above 1.8v for daily, maybe 1.85 since you have good cooling. But wtf do I kno, never played with a x700pro so Im just guessing.
Usually, you'll "feel" the limit.
If you increase the vgpu slowly and run tests in between all the time. When there is almost no gain at all, that's the limit. But I'm not saying that you can run on this limit for ever, but it's definitly not any point in running higher than that what so ever.
There is no general rule for max voltages, not even for the same chip. Some chips clocks diffrently than other with the same voltage.
did it yesterday, lowered resistans by 40 ohm, got 0.4 LOWER voltage :confused: AND higher overclocks wtf is going on here :slap: :confused:Quote:
Originally Posted by Snowman89
are u sure it is .4 lower, because at that voltage the card wouldnt even run...U sure ur checking the right point?
-CaT
sorry, typo, 0.04v :DQuote:
Originally Posted by CaTalyst.X
sometimes somethings clock better at lower volts...like some 9800pros...the lower the stock voltage the higher the oc on the where...then those same cards responded MUCH better to volt mods...mabye it is the same deal...
Dragon
Anybody have some nice pics of completed mods?
-CaT
pics coming up
bump
Here is a pic of my vgpu mod.. its at 1.56volts right now. i used a 50k ohm pot on it.
http://www.xtremesystems.org/forums/...id=29215&stc=1
Looks good Maxxx. :up: Only thing that concerns me a little are those long wire leads. Specially the yellow wire, where it looks like the wire lead is about to touch the resistor right next to the where you soldered it.
Malves theres no resitor next to it.. its blank.. so no need to worty about it.. heh. made sure of that..
the blue wire ill prolly change as it is uselessly long. i made the wire lenghts before i hooked it up to the board.
Hey guys.
Did the Vgpu mod and gained from 490 (1.36v) to 550 (1.68v)
But havent seen anyone with the vdd mod.
I`m stuck @ 600 for the mem right now.
So wondering if it would help any.
Thx in advance.
/EQ
wel i got form about 500 to 550 with just 0.1 extra volt on vdd and vddq
will add more later but STILL working on getting my watercooling installed (well its more a casemod then just adding watercooling)
Kewl.. I can do 495+ in 3DMark05 without any mods. I hate that my Abit 256mb card doesn't look like the other cards :dammit:Quote:
Originally Posted by the_countess