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no special batch.. 3rd 3870 @ 1ghz+ core/1.3ghz+ mem @ stock/air coolingQuote:
Originally Posted by Lord AnthraX
as i have stated in the post: bios flash
875/1250 bios
http://www.iax-tech.com/video/3800biosmod/03.htm
after vgpu/vmem i got it to 1090core/1400memQuote:
Originally Posted by Ket
i didnt bother to post since i didnt get more than the other 3870s
1090/1400?
Not bad at all man. nice job =)
my HD3650 on stock bios only just hit 975/1100 on stock bios, I wish it was reference to push it more...
Probably go faster than my aforementioned 3850. =/
yeh i got it to 1.1ghz/1.4ghz.. but i was expecting more out of it..
i gave up.. probably if id spend more time.. 1150/1450
temps were really low for such clocks
Yeah, I never broke 55C on my 3650 @ high clocks.
Anyone got any advice for me?
download/flash the 770/975 3850 bios
http://www.iax-tech.com/video/3800biosmod/03.htm
800/1000 easy
Didnt work, I specified this.Quote:
Originally Posted by NapalmV5
Memory recognition was at 256mb, i have 512mb. (my card is none reference) ;)
Quote:
Originally Posted by Renegade_!
i thought the bioses are 512.. ma bad.. sorry
That is correct.
whole bunch of 512 gddr3 3850:
http://www.techpowerup.com/vgabios/i...-E&memSize=512
Yeah, but none for a gainward card. Mine is none reference, so surely these wouldnt work?
I already tried editing my current Bios (RBE) like i did for my 3650...
This just refused to work.
doesnt have to be gainward bios even if nonreference pcb
any of those bioses except for the gddr4 one should work on your 3850
You sure?Quote:
Originally Posted by NapalmV5
I spent at least 2 hours flashing and using different bios's, included a modded version of mine, my bios is a very late version...
VER010.081.001.000.000000 according to GPUz
Could you advise me on the "most sensible" bios to use?
yes/positive
theyre all using the same bios.. just different versions/clocks/mem timings/etc
doesnt have to be the latest version
HD3850 256mb @ 945mhz
Q6600 @ 3.7
All daily speeds and settings.
3dmark06 score: 13115.
I'm pleased with this budget card. (only cost me 47 euro)
http://img.techpowerup.org/090109/hd3850_quad.jpg
So, Which one would be the fastest safe option?
Any ideas?
if id have 512 3850 id try the:
asus 730/950
his 735/980
and see which offers the highest clocks/performance
whats your memory/ns.. samsung ?
Niether of the reccomended bios's worked. As for my memory... I have no clue. I shall check.
what you mean by not working.. didnt flash.. overclock.. what didnt work ?
Huge glitches all over the screen on reboot. pink and grey and turquoise. I had to re-flash blind, again.
can you post your bios up
could be mem clocks.. try 900 mem bios/es
Sure.
Download from:
HERE
sorry to put you through all that..
if no other bios works on your 3850 select "change to these values" save/flash bios
your clocks remain the same just overdrive max clocks @ 1100/1587
then use overdrive to find your 3850s oc max
http://img134.imageshack.us/img134/3138/54521204uv6.png
post high rez pic of the back of your 3850 and post it up here.. someone will help you with pencil mod
Hey there,
Can anyone help me to find a pencilmod for my Gainward 3850 512MB
Here is a high resolution Picture http://rapidshare.com/files/181711266/IMG_8213.JPG from the back of the Card.
At the moment the Card runs at 850/1125 (1,2V) on Wather.
Please help me.
Thanks Regards Dodo1
Wow.
My card wont break 760/950 without having a fit...
and he's getting 850/1125?
We have the same card.
Hi, anyone knows how to mod Gainwards 3870 DDR3?
Got an IC called BS-9K near VGA Connector.
Can`t find a datasheet ;(
Here`s a picture.
http://www.ewetel.net/~bernd.hille/gainward.jpg
exciter, can You do some better (more lightened) pictures from that IC and also from bigger area?
It's not hard to find right pin, but due my bad English, I probably can't describe, how to look it.
CRIO - H.O.T. (Hellas O/C Team)
Voltmods at core and mem done
Core worked maximum at 1175mhz
Mem worked maximum at 1150mhz
HD3850 256mb
Aquamark
http://hwbot.org/result.do?resultId=809823
http://hwbot.org/signature.img?iid=181988&thumb=false
3dmark01
http://hwbot.org/result.do?resultId=809820
http://hwbot.org/signature.img?iid=181985&thumb=false
3mark03
http://hwbot.org/result.do?resultId=809821
http://hwbot.org/signature.img?iid=181986&thumb=false
3dmark05
http://hwbot.org/result.do?resultId=809822
http://hwbot.org/signature.img?iid=181987&thumb=false
3dmark06
http://hwbot.org/result.do?resultId=809537
http://hwbot.org/signature.img?iid=181733&thumb=false
Sure, my english is also bad ;)
Wait...
So, i uploaded some pictures here:
PICTURES
Hard to get got ones, because its installed at this time...
Also found the vgpu measure-point i think. it reads 1.337v on the right side to the vga connector.
What's written on that IC I marked on Your pic: http://ceemic.pri.ee/hardware/gainward_3870.JPG ?
Itīs marked with:
RT 8105
GSABC0D
Think it`s for memory?!
Yes, RT8105 is for mem.
I think the BS-9K is the vgpu controller, but you to figure out, which pin is the feedback?
I need a datasheet...
It can be found without datasheet also, but it needs lot of measuring. I found FB for Asus HD4850: http://ceemic.pri.ee/hardware/hd4850_2/hd4850_02g.JPG
Do a better macro-pic from that specific area and start to mark all traces from every pin. Use You DMM - set it to lowest resistance measuring mode; it has to show 0,00ohm between connected spots. Then mark ALL GND spots around that IC and ALL spots that are connected to Vgpu (that You previously found near PCIe connector).
FB is connected to GND through a resistor and to Vgpu through another resistor ;)
Okay, will do this tomorrow i think.
Maybe i find this voltage divider...
Hi there,
@Renegade Yes is unmoddet.
Wich volltage did you have at the green marked points http://rapidshare.com/files/181931172/IMG_8213point.jpg
the Same question for Exiter :)
@Exiter i have the Gainward 3850 512MB GDDR3 but locks the same pcb at yours. I need a Voltmod too :)
On wich point(s) you read the Volts on the gpu? Can you marked it, please?
How many MHZ get your card?
@Ceemic can you help me too? Here is the Link again for the pic from the backside of my card http://rapidshare.com/files/181711266/IMG_8213.JPG (full size 10Mpixel)
Sorry my english is horrible, but i hope you understand me enough.
Regards
Edit: Here is my Bios file (original) http://rapidshare.com/files/18192804...Org__RV670.bin
So i just measured some traces and found this one marked on the picture.
Between the GND & VGPU Spot is a 1500ĩf / 6,3V Cap so i measure 3,1Ohm between these spots.
Resistance between each GND & VGPU Spots are 0,6Ohm, because of measure wire...
So what do you think?!
In Circuit measurement from both resistors: 3,2kOhm.
regards,
steffen
http://www.ewetel.net/~bernd.hille/3870HD.JPG
In theory, this can be right, but You have to trace all the pins. There can be more than 1 "possible" FB pin, but only one is the "right".
If Your soldering skills are good, then solder 50kohm VR between one spot on that trace and GND. If it is FB pin, then Vgpu should change a little. Then turn the VR so the resistance starts to drop. If Vgpu doesn't change at all, then don't turn resistance too low! Just unsolder the VR and start looking another pins.
There are risks involved, but if You know what You are doing, then You should find FB soon!
Good luck!
I soldered it an hour ago.
Only had 200kOhm Trimmer, but all is working like it should.
Got good solder skills, so it was no problem for me, but i think its better to go with pencil-mod...
Nice to hear it's working :)
But why pencil mod? :rolleyes:
i mean for someone without soldering skills its safer to do the pencil mod, since the resistors are 1,x mm small or so.
http://www.ewetel.net/~bernd.hille/100_2453.JPG
So, which resistor to pencil in?
I want to pencil mod, to make sure there is nothing wrong with the card itself (limiting me to 760 core, even after I re-hashed the bios)
To see if the Core will OC better with a little extra voltage...
My mobo is fully V-modded, as was the mem on my HD3650. (DMM & soldering iron use at school ftw)
Hi Renegade,
I do the mod with exiter together. For Pencil mod take the pic in post 938 and the blue marked resistor.
My stock Voltage is 1,27 at 2,353Ohm at 2,220Ohm the Voltage on Gpu is 1,38 in 3D 1,40V.
With stock Voltage the ATI Tool shows artefacte at 823 Core with Mod at 891Core. Benching without Mod goes to 850 Core but with mod only 877 at the Moment.
My system runs not stable but i donīt no why? With 904 on Core i didnīt see any artefactīs but my TFT goes off after 2minutes in Bench. The same at 891 and 877 and 864 but 850 runs.
Sometime the Benchmark runs with 877 goog other time the TFT goes of.
An how to is following
Another question,
with core running @780Mhz i get 1,326V idle and 1,405V with artifact scanning (ati-tool)? Why its increasing the voltage???
With mod, pot @highest value 200kOhm i get: idle 1,343V, artifact-scanning 1,418V.
Seems to be something with Bios-Values???
Gainward 3850 / 3870 seems to be protected against high current /voltage.
DoDo and me getting an Blackscreen while benching with 1,4xV and higher Clocks.
VGPU drops to almost 0,0V...Maybe a newer Bios will help? Or only harmodding??
Same issue here, It's like the bios is locked or something.
Im not sure.
I'm going to try flashing to another bios. I'll let you know if this helps.
I get blackscreen at 775mhz core on stock volts, yet, 760 passes every time, which makes me think that the bios is locked.
Hmm...thats funny.
Whats your vgpu controller called?
BS-??
Renegade i didnīt think the Bios ist locked.
I think itīs a other Problem.
Bench with Core 920/1100 and CPU runs at 2,4Ghz all OK
Bench with gfx-card at stock and CPU at 3,8Ghz all OK
Bench with gfx-card at 920 and cpu at 3,8Ghz = Blackscreen
Bench with 850 and 3,8Ghz all OK
Bench with 864 / 3,8Ghz Blackscreen
Other times he run with 877 / 3,8Ghz LOL
Verry confused this.
Wich Bios did you have Renegade? Maybe you can use mine at Post 937 if you have the 512MB version.
I just swapped over to the Qimonda ASUS bios.
Running at 780/1035 without any kind of blackscreen.
Any higher promotes bad behaviour.
I will do the pencilmod tomorrow.
Hi Renegade.. is this the Bios from Techpowerup? if yes he has the lock at 862Mhz This Bios file ist 010.068 an they are locked at 862 Core you need a Bios with 010.071 they unlocked.
Take the Bios from me i post here its unlocked ;)
No i modet my own Bios file. At the moment i can run 918/1100 but the mem goes up to 1150.
I Benched the 06Mark at 934/900 it runs (CPU 3,7Ghz)
Then i benched with 934/1100 and i became the Blackscreen. (CPU 3,7Ghz)
Now i benched wit 918/1100 and it still runs now (CPU 3,7Ghz)
http://img369.imageshack.us/img369/1...0918su9.th.jpg
I hope i can crack the Blackscreen with exciter, than the 1000Mhz will fall :)
The Card has a Overclock protection the we must break.
Regards
Can i flash any HD 3870 DDR3 Bios or is it important to flash one made for the same Ram vendor?
My card uses Samsung 1ns chips, but i cant find a bios for samsung.
Only found one with Qimonda DDR3...
I cannot tune my ram between 850-862. After apply, its resetting it to 850 again.
After setting 864Mhz it works but im getting a bs in 3dmark06????
So i got a hole between 850-862? Could this be 862mhz barrier?
My Bios:
Video BIOS Information
Version 010.081.001.000
Part Number 113-AA38709578.27G
Date 2008/07/04 22:46
Vram Type HyperMemory
Its pretty new i think, so its supposed not to have any barrier?!
This BiosQuote:
Originally Posted by DoDo1
And, on stock volts, on the stock bios, I couldnt hit 755/900 stable.
After the flash to the ASUS bios i'm hitting 775/1035, So i'm thinking I should pencil mod.
I will try the posted bios file shortly, if unsucessful, I will re-flash to the ASUS bios.
Could you possibly send me this bios file, or is it the one you posted at #937?Quote:
Originally Posted by DoDo1
I'm sorry, your english is confusing me, not trying to sound offensive.
Either post here, or P.m me a d.l link.
I think it's just the stock voltage holding me back, but I will be re-hashing the ASUS bios shortly (changing upper limits), I will be letting you know the results of both bios's.
I may also change the clock frequencies from 700/900 to 750/975 in the bios bins.
Any other ideas folks? :D
Ok, I just modded the bios you provided further Dodo, on stock voltage im hitting 800/1150 (maybe more on mem, im still testing) and I have re-hashed the upper limits,
VGA-bios is now set to 750/1000 for default =D
Im going to pencil, will update this post when i've done it. (I havnt been home long)
Sorry Renegade for my bad english. itīwas to late tonight
Iīve seen a page before youīve the same Bios as me. (the original)
Wichsoever ram did you have on your Card. Mine is Qimoda.
With RBE i set my Core/mem in 2D 300/900 in 3D 850/1000 and to shift the upper Limit how on Post 923.
Now i can set all the Clockīs with CCC and the Card change between 2D/3D. But i canīt go higher clocks than before.
Regards Dodo
How are you hitting 900mhz core +?
I just penciled, and I can still only get 800/1185.
I did the shift upper limits etc.
any higher on either crashes the display driver
I do the pencil mod :) 1,44V and so i can run the 900+ core. (Wathercooling)
Maybe your core can get more Mhz without higher voltage.
I think itīs not normal that i can go so high clocks. I had a little luck with the Card.
You can go wth your mem to 1185 now? Wow, mine goes currently only 1125 but is stable.
I send you an PM
1.44 is a little high isnt it?
You should break the 1050mhz barrier with 1.42 realistically.
Hard to vMod to an exact number without a hard mod.
Yeah, 1185 memory. could probably push 1200 with active cooling.
Im on the standard air cooler, just like I was with my 1103/2200 3650 =D
I will try to add some other resistors tomorrow.
I think this card has an OCP and not OVP because this case should only occur, if FB voltage is ~0,75V.
With 1,41V i measure 0,614V, so i think its ocp...
Hi all. Has made voltmod my old Palit HD3850 SUPER. To voltmod it more 780Mhz did not take, after voltmod on stock cooler took 980Mhz. Tomorrow I will make screenshots:D.And when will bring the water block I will try to squeeze out still a little bit Mhz
Really? Then my hd3850 must be a bummer.Quote:
Originally Posted by Renegade_!
My daily speed is 999mhz and I had to bump it to 1.7v. First I used 1.66v but it wasn't stable in Fallout 3, while other games ran fine.
What is average for a hd3850 to run at 1ghz core?
Hi all! Can you help me to find points on my asus3870 gddr3 for vmod and points for check voltage.
I think I've found vgpu controller, it's uPI uP6205A VLF86A
http://img408.imageshack.us/img408/6...205abt4.th.png
photos of card:
http://img148.imageshack.us/img148/4...1898mo7.th.jpg
http://img216.imageshack.us/img216/9...9396xf7.th.jpg
Pyvoman, what is that 64pin big IC?
uP6205A FB is pin11. Measure resistance between FB and GND.
And btw, can You share that datasheet? Tnx!
measuring points for vGPU and vMEM
http://img187.imageshack.us/img187/8...8mo7ad8.th.jpg
0Ro!, yes, You are right.
uP6205A seems to be controlling mem...
datasheet for uP6205A is here http://www.upi-semi.com/Product/Prod...spx?ArchID=172
and here is the another photo
http://img6.imageshack.us/img6/3612/34786800gj0.th.jpg
thanks for helping!
Pyvoman, IC is L6713A: http://ceemic.pri.ee/hardware/datasheets/L6713A.pdf FB is pin22
If I understood Your picture right, then FB heads like that: http://ceemic.pri.ee/hardware/L6713A.JPG
Use Your DMM to confirm that.
And measure resistance between FB and GND.
I've measured vcore = 1.315v and vmem = ~2v
I've measured resistance between FB and GND on both IC
L6713A - 1000 Ohm
uP6205A - 700 Ohm
For both You can use 20k VR to be safe.
ok, i'll try
are you sure that this is correct points?
I'm sure about FB pins :D
You have to use DMM to confirm better soldering points...
Ok, i've had some free time and made vmod for gpu:
1.4V - 900Mhz - stable
1.44 - 930 - stable:up:
but it seems card has protection on 1.45V, when i reach this voltage i have blackscreen:(
That's strange. I can go up to 1,90V on my Gigabyte HD3870 DDR3.
Its Gigabyte, but i've asus:( which i didn't choose, i had HIS 3850 with iceq3 - great card, but it broke up a few monthes ago and guys in company changed it on warranty on this 3870:down:
can you give me some advices how to remove this barrier, like Shamino did on the stock card
here
Pyvoman, hard to do, if we can't find IC's datasheet...
Are talking about this http://ceemic.pri.ee/hardware/datasheets/L6713A.pdf ?
or we need something else?
Ups, I had allready forgotten the IC You had. Then it can be done, I hope.
Try to look where pin33 heads.
Hi! Ihave a pair of Sapphire HD3870 512MB TOXIC, and i have checked on VGPU-mod on a non TOXIC card and there are not the same soldering point as the red card.
Could someone that know the point and mark them out for me, and if i can use the same vrpot as the red card..
This is the usual HD3870 512MB
Core Clock 777 MHz
Memory Clock 1126 MHZ GDDR4
http://bandwidth.se/imgs/nouser/hd3870vgpu1e5495819.jpg
And this are my HD3870 512MB TOXIC, plue pcb.
Core Clock 800 MHZ
Memory Clock 1152 MHZ GDDR4
Im not that sure wich point to solder on..
Clickable..
http://bandwidth.se/thumbs/nouser/pict03344e33227c.jpgIt's not that bright pic but the solder point are to see.
Br
chefnr1
chefnr1, layout is almost the same. You can use DMM to check the points that are connected to pin13.
These I could see in that bad picture: http://ceemic.pri.ee/hardware/hd3870_toxic.jpg
Good luck!
Thank you ceemic! all spots and pin13 that you marked red for me are show 5.10K even that spot i marked yellow., so i think i can use either 2 of the spots at the wright side on the pic and i se that the yellow one seems to be easyer to solder on.
And i think i can use VR-pot 100kOHM to get the volt setting..
http://bandwidth.se/thumbs/nouser/points22805544d.jpg
chefnr1, that yellow is also connected to pin13 or is it GND?
The yellow have the same value as the redmarked and pin13, so it's not GND..
Ok, I got it :)
So they all have 5,10kohm resistance between GND? Then 100k VR works fine.
Yes thats right 5,10Kohm on all, so i think that 100K VR should work.
Thanks for all answer will post when i done the mod on both card..
Br
chefnr1
Some results after i done VGPU mod on my both card , most i run gpu was at 1000Mhz with stockcooler..
http://bandwidth.se/thumbs/nouser/3d...v138765a4c.jpg
http://bandwidth.se/thumbs/nouser/05...z14fbb5620.jpg
http://bandwidth.se/thumbs/nouser/06...z1ba29ef4b.jpg
And here are the mod taken when runnin 3Dmark..
http://bandwidth.se/thumbs/nouser/pict0341f168a156.jpg
http://bandwidth.se/thumbs/nouser/pict034320b4de4e1.jpg
When i run at 1000Mhz gpu was set to 1.5v..
Hello everyone,
I have 2x3850 Gainward non-reference cards from post 924 in this thread, and i would like to squeeze most out of them in CF but i need same help with two things:
1. Can't remove Overdrive limit. I have tried everything but no success. I get higher values but when i try to test custom clocks activity stays at 0% and testing screen is testing indefinitely. When i try other bioses as well as ones Renegade and DoDo1 where talking about i get the same thing.
2. I would like to do pencil voltmod and vmem mod for now and afterm my warranty expires i will do solder mod. Here are the pictures so if someone can tell me what to do. Thanks :wave:
http://img37.imagefra.me/img/img37/1...2m_72b8e89.jpg http://img39.imagefra.me/img/img39/1...2m_519000c.jpg
Attached below is original BIOS
After posting i found out on some Russian site that this Gainward is identical to Palit, so i force-flashed 3870 DDR3 bios into both of my Gainwards and they work on 780/950 setting :D. Overdrive max is now changed to 830/1000, not quite what i want but i'm much more satisfied then before.
With little help from monteboy i found feedback pin for BS-9M as well as VMOD points.
http://img39.imagefra.me/img/img39/2...om_eceffc8.jpg
Unfortunately my Gainward died last night. Vmod and vmem were successful as i had it going at ~930@1,44V for core and ~1070@2,05V for memory. I was benching it for more than three hours without any problem. It was cooled with VF900 and with heatsinks on RAM and fets. Core temperature was around 85°C while doing 3dmark05 and 3dmark06. power fets where very warm but not hot at all. After, what i thought was a successful overclock, while i was playing with fan controller in RT i got thin black stripes on gray screen. I turned off computer immediately. When i turned it on card was completely dead. RIP:(
i got an inquiry to this^ bios which i dont have anymore nor the 3870s.. if you guys still have 3870s or bios files you could share.. please upload/post hereQuote:
Originally Posted by NapalmV5
thanks :toast:
I believe I still have my folder full of 3870 BIOSes that I modified in my OC folder, I'll check when I get home from work.Quote:
Originally Posted by NapalmV5
In the meantime, have a look through TPU's VGA BIOS Collection.
Request was done from me, thank you both NapalmV5 and Random Murderer for your response.
Meantime i flashed this one, working flawlessly...
@Random Murderer, i'll be watching this thread...if you find the requested in your folders... thank you again.
Not only do I still have my folder full of modified BIOSes, but I have those two from IAX Tech.Quote:
Originally Posted by felix_w
Problem is that the XS attachment system isn't letting me upload them. It says to click the "Add Files" button, but there is none.
Any progress with that ?
Thx
I sent you an email at the address specified in your PM with the two IAX BIOSes and the PLL fix BIOS. You had said you would upload them to a fileshare server and post the link or something along those lines.Quote:
Originally Posted by felix_w
EDIT: Ah, I just checked and your email had rejected it. shoot me another PM and we'll figure something out.
IAX Tech Bios's found here :
http://www.techpowerup.com/forums/sh...ad.php?t=48544
Thanx !