Jimmyz told me to post this LOL... he'll post the info up tonight :D:D
K
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Jimmyz told me to post this LOL... he'll post the info up tonight :D:D
K
http://bandwidth.se/imgs/1/304/cimg1657.jpg
http://bandwidth.se/imgs/1/304/cimg1658.jpg
50ohm VR from pin #9 to ground should do it :) (edit: should maybe add, on the VT1165MF IC and one on each since there's one for each gpu)
Just need a more convenient solderingpoint so if someone with cards laying around would check for that, preferably on the backside of the card.
Thanks for the pics elmor...but they're friggin MASSIVE!!!!!
Xtremesystems no? :DQuote:
Originally Posted by K404
LOL I cant argue with that. :D Need a new xtreme resolution section :D
lol at the people who are saying "4870x2 is too much power",
Then you guys say lets voltmod them :P
We'll freeze them too ;)
Never enough.
NEVER enough. :)
quoted for the truth !Quote:
Originally Posted by K404
Great going guys Im waiting for the arrival of my card and this tread will be very helpfull. Anyone has found the v.core read out and v.mem read out points ?
High-res pics* welcome and readpoints etc shouldnt be a problem to point out.
* maybe a wee bit smaller than elmors though! :D
Ill post up the mod guide for all tommorow when I get my card mICKEYmOUSE did for me or at least show where the VR's connect and read points if you guys want.
:)
Clint
Quote:
Originally Posted by CCC
That would be great info if you could please put up the pics of all the mods showing what is read and what is VR's
Thanks for the info look forward to seeing the pics
Nobody has found the volt mod for this card yet ?
Sorry for OT but are the mounting holes in the same places as previous ati's? I.e. would my pots that fit my 38xx's fit a 4870?
no they are 42 mm acording to what I have been told :)
They are 43x43 afaik
Any progress on this guys ?
:up:
Mod point is on the backside...
Someone post pics of the backsides of both VT1165MFs.
Current hwbot record x2 is clocked to 900 , can a stock card on water clock this high or is it vmodded ?
:up:
idk wondered that myself,mine can hit close to 870 /1000 with idle temps @30c....so i'm not sure
Is yours on water ? Air ? Vmodded ?
:up:
no just stock fan 100%and central air con.its one run then done mostly,till it temps come back down
i would not even think about volt modding it till i can get the temps low.
@largon
you stll need pics,if you do i'll take back plate off and get some up this week asap,for the dice/ln2 guys
cowie,
Since nobody has yet posted pics of the backside...
:yepp:
Excuse the quality but I'm not a very good photographer...I'm also not sure if I captured the right areas of the card, so let me know and I will try to get what is needed. I just hope these can help someone out.
EDIT: removed the cruddy images....
:(sry for i put up no pics
card went back last week
http://pic.xfastest.com/hicookie/Gig...870x2_old1.jpgQuote:
Originally Posted by Oliver
rdrash,
Thanks for pics, but to see things...
...we need higher resolution images taken from a shorter distance with no camera flash. Such as those elmor posted in post #2, but of the backside.
:)
Ok..sorry about those crappy pics. I will try to get some good ones before the end of the weekend. Did I atleast get the right areas?Quote:
Originally Posted by largon
:)
Yup, you got pretty much the right places.
If the camera is capable, macro the areas inside the red squared:
Attachment 84477
Sorry so late to post, I assumed when Elmor posted his pics you guys had all the info you needed. if someone wants to check something with a multi meter PM me.
I have V-Mod info, Please PM if you want to test it. I do not have a card here and need to confirm resistance
The issue is there's no feasible soldering point on the frontside. The mod itself should be "50ohm VR from pin#9-to-ground" as stated earlier?
I should have been more clear. I have the spots to check on the backside. Thanks to W1zzards excellent pics. Visit Tech Power-up and check out his revierw. He generally includes Hi-res pics for us modders. http://www.techpowerup.com/reviews/S...4870_X2/3.htmlQuote:
Originally Posted by largon
I do not have a card here so please test before modding. I am not responsible if your card is damaged, please only test if you are comfortable with the risk. Any results or questions I will check in later tonight.
Check from the mod points indicated to ground. multi set to low range. the resistance should be around 2.5 ohm .Voltage read points, of course need to be checked while card is functioning.
Ignore the part about Elmors reading in the pic. I thought he said what resistance , he stated 50 ohm to ground which is for a resistance of roughly 2.25 ohm (resistance X 20 = size of VR recommended) so 20 x 2.25 = 45 ohm so a fifty is fine.
[IMG]http://img172.imageshack.us/img172/7...tforcorfb9.jpg[/IMG]
[IMG]http://img172.imageshack.us/img172/2369/vmod1gn4.jpg[/IMG]
If the resistance is within spec these should be the mod points. as Elmor stated it should be a 50 ohm VR. PLEASE test before modding, these may not be the proper points!!!
Jimmyz I measure 2.7 ohm's on your 1st picture (the one near the letter D) & 1.6 ohm's on your 2nd picture (the one near the letter U)
I also checked the continuity through the board to the pins marked by the green arrow in my pics below. I don’t have the schematic for the VT1165MF chip but my marks are in 2 different places which obviously can’t both be pin 9.
Also has anybody looked into memory volt mods yet?
This 1st pic is the VT1165MF chip near the PCI-E power connectors
http://i106.photobucket.com/albums/m...2/PCIEChip.jpg
This 2nd pic is the VT1165MF chip near the Pulse chip.
http://i106.photobucket.com/albums/m.../PULSEChip.jpg
will look into this thanks for the info.
Anybody found the right vmod soldrings points??
the top one's resistance is 2.7 and 50ohm VR does the trick,Quote:
Originally Posted by jimmyz
the botom one's resistance is 1.7 and 50omh does nothing, so prob wrong point
Thanks ghz, i got information from pmp :)
Sorry guys, Had a big holiday weekend here in the U.S. I looked everything over again and all i can suggest is checking resistance of this point to check it.
[IMG]http://img297.imageshack.us/img297/4...condpadmk5.jpg[/IMG]
Photo courtesy of Tech Power up. http://www.techpowerup.com/reviews/S...4870_X2/3.html
pic/info of the mods below
from mouse
for gpu#2 you have a solder pad point on the backside as stated in the guide at XS
for gpu#1 solder directly to pin#9 of the ic controller
jason said to use a mag headset and a needle point sodler iron tip and once the wire is soldered to cover with hotglue and or AA epoxy as the area is so small/tight you dont want the wire to come loose and or break off
Ill try take pics of the cards when I install EK blocks when they come in stock.
The cards with fans at 100% have no problem at 860/960 inside the case with vgpu on both set at 1.305v load
http://img440.imageshack.us/img440/2812/dsc03814xp2.jpg
do you have a pics of that pin#9 soldering ?
@zbogorgon: those pin so tiny and it's really a pain in the ass for finish this connect
i use a pair of 500 Ohm VRM coz i don't have any lower available on hand. Now we happy with the result. Our card is suck 1.10V idle mean 1.33 Full load stuck @ 820/950 :ROTF:. Anyway, if any one find out another better spot pls sharing us here, i think due to the super thin wire may be when down to sub zero this connection will be apart anytime :down:
that's for sure that I won't be soldering this, but I will try to find beter spot
does anyone know resistance from this point to ground without vmod ?
mine yell out ~ 2.9Ohm compare to 3.2Ohm of the first GPUQuote:
Originally Posted by zbogorgon
Before do the pin9 direct solder, i do have try alot for find out another spot, but i'm a looser ... hope that you can help us :up:
Someone think a pencil mod will be possible ?
(Sorry for my bad english)
Impossible, Rfb resistance is too low for pencil mod on this card.Quote:
Originally Posted by Sectorz
sh*t :( it 100% sure ?
Can we add more voltage with a flahs bios ? (exemple the 4850 1.15 to 1.21)
You can try out this one :D
LINK
How I can gain max with a bios flahs ?
upper the clock speed and volt, and chill the card better ;)
Howto:
Flash so the volt is 0.05v or 0.1v more then default and clock it with a app. and test it with furmark for stability, now you need to flash the bios again with the new clock speed's.
I belive it is one bios for each GPU so flash master and slave GPU ;)
Sorry you have miss understang me, How many volt I can won with a flahs bios ?
exemple 4850 4850 1.15v to 1.21v with a bios flahs but 1.26 to how with a 4870x2 ?
Sorry I didn’t reply to this earlier but my XS notifications have been patchy if at all recently. No Resistance to ground, no Continuity to pin 9.Quote:
Originally Posted by jimmyz
wich is the vgpu mod??
:shrug:
This one http://www.xtremesystems.org/forums/...7&postcount=41Quote:
Originally Posted by spl
50 ohm pot between pin 9 & ground
CN :)
but this guy use a pair of 500ohm!!:shrug:1mohm?
o 50ohm??
but this is for one core or 2 core ??
sorry
spl
use any vr from 50ohm to 500ohm the lower '50ohm' the better as you can tune in better since stock resistance is 3ohms or so
and btw if you join any two legs of the ic you can short the card even if the power is off if power is left charged in the caps
so if you have a great card/s and cant rma or afford to kill a card at '$559' the odds of this mod going wrong are very very high
:)
Can you please specify/show which point is that, as I am somewhat confused?Quote:
Originally Posted by CCC
Top picture post 32Quote:
Originally Posted by HighT3ch
but this guy use a pair of 500ohm!!1mohm?Quote:
Originally Posted by C-N
o 50ohm??
but this is for one core or 2 core ??
there are two different vmod?
sorry
spl
yes there are TWO gpus each needs its own voltage mod
gpu #2 towards the back of the card has a solder pad that conects to pIN#9 on the back of the card easy access easy soldering
gpu#1 has no solder pad so you have to solder directly to the leg of the vreg pin #9
you can use a 20ohm to a 1k vr, lol but anyhting over 50ohm is asking for trouble some guys use what they have casue well thats all they have/had at the time
so 2 mod
for 2 gpus
and use 2 50ohms multi turn vr's :)
CCC can you please give me a resistance value (measured on the vr after you disconnect it from the circuit) to use as an estimate, as I use fixed resistors - I avoid vrs at all costs.
spl, sounds like you havent done enough research to be attempting a voltmod on an expensive card.
might i suggest you learn about common volt mods before ruining your 4870x2
:doh: Great suggestion.
any air results?....the card goes 860 stock for me now..
I get about 21500 in 3DMARK06 & 13500 in Vantage with my DFI P35 sig rig using Vista 32 bit running the 4870x2 @ 825/1050mhz.Quote:
Originally Posted by cowie
I can run 860 or so on the core but my 06 & vantage scores actually go down what are you making on your DFI P35 & E8500?
CN :)
not too well 31500 o5 stock clocks and about 90k 03 840/1000
now i put e8600 back in,and i sent card back to newegg for refund.
First card modded, bought a new superfine tip for my iron just for this :banana::banana::banana::banana::banana:.
My default resistance was 3.1 Ohms so i used 100 Ohm VRs.
http://img.photobucket.com/albums/v310/T_M/IMG_6528.jpg
And now to test it :D
http://img.photobucket.com/albums/v310/T_M/IMG_6532.jpg
Great suxses!
Now for the second card.....
Damn...that takes balls Tim, I didn't expect anyone to actually try soldering right to the IC leg. :eek: I was planning on gooping the whole area with glue gun and praying for the best myself. :p:
Has anyone thought of exposing and connecting to the trace on the PCB that comes from that IC leg?
nice work TM>
both my cards are also now soldered. all ya need is a steady hand a good iron and good light and its not that hard at all :)
nice work :up:
The hardest step is to get a small dob of solder onto that IC leg and draw it out to give something a bit nicer to connect the wire to.
After that yeah a piece of cake.
Here's one modded card rekitted for hardcore air testing:
http://img.photobucket.com/albums/v310/T_M/IMG_6539.jpg
http://img.photobucket.com/albums/v310/T_M/IMG_6537.jpg
How did you reach thi freq on both cores?Quote:
Originally Posted by cowie
In CCC it isn't possible.
How could you manage the freq and the fan together?
emertX, those clocks speeds are possible by flashing to the Asus TOP bios (see other thread).
You can manage the fans/clock in a variety of ways, BIOS / CCC / Rivatuner / AMDGPUClockTool / etc.
Thank you!
Is it enough to flash the original asus top bios? Or do I have to flash yours?
no flashing just amd tool and riva for fan...only one cardQuote:
Originally Posted by emertX
I can't use riva for the fan? It doesn't detect my Fan, don't know why?
Sorry for OT!
btt
Oh man...thank you for this explanation!!!
It's been great!
nice job!!!!!Quote:
Originally Posted by T_M
how many mhz plus??
Wow, these are the first video cards to push my 1kW Silverstone PSU to its limit.
Ater modding the second card, i got repetative system reboots at the exact same spot in canyon '06.
After a lot of testing each card seperately etc, i realised maybe my PSU was kicking, so i unplugged a water pump that was connected but doing nothing and suddenly i got stability again.
So now my whole water system for CPU is running on an el'cheapo POS PSU, and the system is finally ready for some volt modded benching.
Just trying to stabailise 860/1020 '06 now.
ya they leech some pwr, they are hungry
Looking forward to see some action from you
in the afternoon i make the vgpumod for one card!!!
i am very happy:up:
same water temp. before 900/900 now with 1.35v 950/900 :yepp::yepp::yepp::clap::clap:
1.4v 960mhz 4 time 2003 no stop no problem !!!!!:clap::up:
http://img376.imageshack.us/img376/8366/112kkpm3.jpg
Hmmm, even with the subtraction of the water cooling from my PSU, it still trips running vGPU = 1.43V :(
woooow manQuote:
Originally Posted by spl
nice card dude
I am about to make a vmod guide for the HD4870X2 card and i have found the magic solderpoint on the back for the gpu in front of the card so now u dont have to solder to the 9t leg of the small IC stay tuned for more comming up in a hour or 2
Damn curious, i've spent an hour looking for it.
U cant nearly not se it
can you PLEASE post the photo hereQuote:
Originally Posted by Riska
this solder point to the leg is ridiculous :D
hey SPL what's the trick with your setup
you seem to have flashed the bios to 900MHz core
let us all know please :D
http://www.octeamdenmark.com/forums/...5573#post25573
Here is my vmod and flash guide of the HD4870X2 card and the pic of the newly found solderpad on the back of the card is in the guide.
thanks manQuote:
Originally Posted by Riska
that's genius :up:
Good job Riska :clap:
yeah much easier then the leg of the ic
what you guys think???
small wire in the hole for solder points and cover with metal paint?
or is that just stupid thinking?
not being a magician I have flash to 900, after push with amdgpuclock and the voltage up to find one established!!Quote:
Originally Posted by dinos22
spl, when are you going to give us a run using both cards?
Guys we need to fin the Vmem mod i have found out of the place it might be in but i am not sure!
Is there someone how can check it out?
Eventhough R680 has a bit different vMEM component layout the Volterra chip should have compatible pins...
My bet is either of these two is the right spot. The left dot looks more likely, but can't tell for sure without better pics.
Attachment 85651
I get my card in this week so i will check it out
And is there any way of softvolmod on 4870X2? I have Crossfire X (2*4870x2) with ASUS Top Bios. I've tried GPU Voltage Tuner v.1.4. But it allows me to change voltage only on 2 cores of 4. Other 2 cores can't be voltmoded