i think atitools artifact scanner is the best, even when i get a few artifacts on it, it doesnt allways show in games
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I found that the 6 pin connector for the PCI-Express power supply line has a capacity of 18 ampere...
Two 12 volt connection with total of 300W for the two.
http://blog.danawa.com/prod/219851
if you go to the link might not be able to read the text but can see the table...
How much does the graphic card actually consume?
Is the amperage not enough to overclock?
At a glimpse the spec seems sufficient... :shrug:
hmm i tried that 1.377v bios
i have a prob
i can run 900/2500mhz on stock cooler fine for each card
but when i crossfire...it will only be artifact free at 864/2500
UPDATE: 3dmark06 score was 11077, that's not very high if you ask me. 877/1236 were the clocks.
e6300@3.5ghz
ocz 6400 platinum xtc rev2 5-5-5-15 1:1 ratio
The main difference i've noticed is crashing instead of total lockup at high clocks like 890-905's.
I dont got a voltmeter.
I leave the fan at 68%
core temp floats around the 50's
i have the thermaltake psu with one 12v @ 18A.
http://www.thermaltakeusa.com/produc...70/w006970.asp
will this be enough to run one 3850? maybe a 3870?
:down: :up: ???
it'll work.
Can someone mod an unlock bios for HD3850's?
Many others and me would be very thankfull!
Best Regards
Dennis
UPDATE:
My final OC results are:
890 core
1281 mem.
I don't know how you guys got 1300's for mem, 3dmark06 would just crash.
How i did it:
- Uninstalled all drivers then used driver sweeper.
- installed 7.11 display driver WITHOUT catalyst
- Disabled hot key proller
- Used RivaTuner for 890 Core, 1281 mem
- Fan forced at 70% at all times.
I ran 3dmark06 3 times in a row, score is 12042.
Good enough for me! now it's time to do some serious gaming.;) :D
UPDATE:
I had to go back to the bios without the volt mod. Riva tuner screwed up my clocks, CCC would not read them at all kept displaying 000 and I tried uninstalling using drivercleaner PE several times...
Flashed back, using CCC 7.11 core is at 885 (in CCC) and going to install rivatuner for fan function ONLY.
if all is stable like that, i will try and up the RAM But the ram doesn't seem to OC very well...:confused:
Once you reach a clock that's over what CCC can reach (885) it will stop reading. From what I can see that's normal. That doesn't mean your clocks are screwed up.
As far as your memory. Every card is different, but you'll probably get some better memory clocks as well with better cooling. With the stock cooler I was hitting in the 80's load, with the V2 I'm getting in the low 40's load. That extra heat has to affect the memory clock as well. At least a little.
UPDATE:
I went back to the 1.377v bios, wasn't satisfied with the clocks i was getting with the non volted bios.
I'm going to try out 860 1251 but so far, i havent been able to hit high clocks.
I think it's the cooling. God knows what kinda glob they put under that headsink on the GPU. and the thermal pads on the ram modules might be causing problems too. A direct contact with that copper heatsink and some AS5 should seriously improve the results.
It has for my x800GTO, and my x1950pro in the past (both agp HEHE)
ALSO: Card is NOT stable above 60 temps...not when oc'ing anyways.:confused:
:up:
ty for being the brave soul to flash using the 1.377 bios! We just need to verify it actually is increasing voltage, though I do not know of measure points.
Once I get back home tomorrow from Thanksgiving break, i'm going to modify the bios and try running 1.4v. It should be pretty easy to tell if it actually is feeding more volts to the gpu if your temps under load are higher than the same clocks on the stock unlocked bios.
As far as cooling, there are ton of good coolers out there. Anything that fits the x1900xtx should fit the 3870/50 perfectly. TBH, the stock thermal paste job looked fairly decent when I removed the stock heatsink and replaced it with an Accelero S1 a week ago. The problem is the size of the heatsink. You'd think that a dualslot cooler would have a beefier heatsink, but that thing is pretty measly.
I must be a fortunate one because I am able to hit 877/1314 artifact free and run up to 905 core on Fur. Can't wait to try voltage testing tomorrow when I get back :)
does anybody has or know where to download the GEcube OC version bios
so far
theres the MSI oc version bios on mkvtech.
i prefer the older bios
its more reliable on crossfires
I'm using GEcube's HD 3870.
Is it not recommended to use an MSI BIOS on GEcube?
Because for the hardware itself there seems to be no difference at all even with all the distributers...
Looks to me that every BIOS is compatible with any distributer's product as long as the hardware itself is the same stuff.
Maybe not... not sure about the BIOS...
1.377 BIOS did nothing to me, except screwing CF clocking :p:
I'm back on original one....
I've tried this BIOS which is suppose to increase vcore to 1.377v...
After flashing I've turned off the computer and unplugged the power cable and rebooted...
But guess what?
I've got a blank screen....
So I've booted up with blank screen and got to the menu in my bootcd with the flashing util.
and flashed again with the BIOS that was posted on the TechPowerUp BIOS database and rebooted...
Worked my way out through the blank screen... (pretty scary...)
Well now that I've reflashed the BIOS it works fine... :mad:
Okay guys,
With the 1.377v bios, I was able to achieve 855core, 1301mem. Temps at load don't go past 58C, Fan fixed at 68% at all times.
I'm going to take off those thermal pads and apply some real AS5 to the core now. I just know the temps are gonna drop drastically after doing so.
After that, i'm going to aim for more core, maybe more mem.
I'll keep you guys updated!:ROTF:
even with the fan fixed at 68% how can you achieve a temperature of 58C on load?
Mine with the originally posted BIOS shows about 60~62 core@850 and stock MEM speed with fan at 70% fixed....
You even applied the 1.377v BIOS!!! there should be a bit of a temperature rise...
The temperature doesn't seem reasonable to me at all considering the BIOS, overclocking and cooling you have in which the cooling is stock... :shakes:
no it could be. It all depends on what else he's running in his system and what your respective ambient temperatures are
Use at your own risk!
Flashing your BIOS should void you of warranty
I've found this BIOS that overvolts the core up to 1.5v and the users say that you could overclock the core up to 900Mhz...
Quite a impressive try...
So now if you dare use it the file is below...
Watch out for the core temperature rise!!!
Go to this site and click on the FILE.01 located on the top right side of the article which is green and says 64.0KB on the right...
http://www.parkoz.com/zboard/view.ph...sc=asc&no=2517
Couldn't like the file directly... can anyone do that for me and even better if you can teach me how to...
Don't blame me if your video card is damaged...
Since I have a stock cooler not going to use it myself...
Just another info. for those who want to go to the extreme...
thats a korean webby right
interesting
so who dares to walk a path of a test pig
Depending on what price the 3870 comes back down to, I may or may not buy one and try the test.
Honestly this isn't like the first time anyone has done this, I mean plenty of people volt mod their boards and what not. As for the stock cooler, with 55nm, I wouldn't say it's a big deal, though if people really want they could always buy an hr03
UPDATE:
okay I pasted the PCB and the RAM BUT there was a gap between the ram and the copper heatsinks! so that was for nothing...what a waste of AS5. I put the "bubble gum" thermal pads back on...repasted core with AS5, now my idle temp is 31C where as before, it was 36-37C.
I am going to attempt the 1.5v Bios, and aim for higher core!
:rofl:
UPDATE:
I forgot to mention one thing, and it's huge!
While I took off the ram heatsink, i marked down the ram's model#.
For the Sapphire HD 3870 512mb the model is:
Samsung
K4U52324QE-BC08
Now we can find out what frequency they are actually rated for! w00p!
Okay I just flashed to the 1.5v bios. Idle temps with 70% fan is 35C with AS5 Pasted might i remind you.
Going to do some benchies now, i'll be back soon!:clap:
The 1.5 (1.499) volt BIOS you mentioned is the same tech power up image changed the same way I changed it for 1.377V. (Only the six corresponding value modified to DB 05 = 1.499 decimal)
So IF the 1.377V BIOS worked, it will work too.
1.5 volt... don't think it is air cooling territory, but who knows.
apparently from a google search I got the (last strain) bc08 means rated for 1.2ghz, the bc09 in the 1gb r600 is rated for 2.2ghz. There apparently are bc07 and bc06 ICs that are rated for 1.4ghz and 1.6ghz respectively, but I don't think those would come into production due to their cost and where ati needs to place the 3870
K4U52324QE-BC08
Rated: 1200 MHz (0.83ns)
hi all
i'm on water and i tryed upping my volts to 1,5v but it didnt give me any higer stable oc (862mhz 3dmark06)
but now that i see this one has 1,499 maby it's a magic number needed for it to work
who knows, any how i'm testing
I've tried both the supposingly 1.377v and 1.499v BIOS volt mod but seems I'm getting a blank screen with both of them...
Can anyone tell me what might be wrong?
Giving higher volts doesn't necessarily mean that it will consume more energy(watt) does it?
Also why isn't there an hardware ID in the volt modded BIOSes?
I tried both BIOS but they are not overclocked so must work fine even with stock cooler but might not when overclocked due to temperature...
But again I'm getting blank screen with the 1.377v and 1.499v BIOS...
By the way I've used and modified an adaptor cable to connect my stock cooler power supply line to the mainboard to save a tiny bit of energy consumption (about 5watt? I guess) that comes from the 6 pin 12v VGA power supply cable coming out from the PSU.
This didn't help much...
For now I'm using the BIOS posted on the TechPowerUP Database file and can see after running few minutes of ATITool artifact scan that it can be stabilized only up to GPU@840Mhz and MEM@1200MHz...
Really wanted to reach atleast 850Mhz but artifacts shows up though ATITool doesn't say it is an artifact I can see a few yellow dots appearing and disappering on the fur rendering...
Can anyone tell me why I can't use the volt modded BIOS?
By the way I've used the correct command which is:
a:\atiflash -p 0 -f biosname.bin
loaded up the fan at 100% and flashed...
reboot and blank...
under darkness I've type the commands to return to a working BIOS...
no magic number's there i'm afraid
so time to get to the bottom of this
has anyone here done a complete 3dmark06 run with an oc higer than 862mhz on a pci-e 1.0 slot?
Heres a run I did right before I left for Thanksgiving holiday
http://service.futuremark.com/compare?3dm06=3849346
I believe clocks were at 877/1314 , with my E4300 @ 3.54. If you try 3DMarking with an unstable clock, you'll actually get a lower score due to dropped frames ..... at least that was what I experienced when I ran it at 905 MHz.
hey guys since the Msi OC bios is in mkvtech
can u check with ure hex editor
to see the difference
and also the voltages
will there ever be a bios editor for this card??
nitbitor is damn easy for nvidia.
the problem with the fixed bios was
it was unstable
during the second test of 877 core
the flying wisp thingy
it will fail for no reason
even when ati tools artifact scanning shows its okay.
unstable bios?
Man, what the hell is with this, ati unleashes a monster card that was supposed to oc way farther than the r600 because of the 55nm die and then they cap it just so they still have a decent high end
The MSI OC BIOS power state table shows 800 MHz for 3D and stock Mem and Voltage.
Pseudo : Pinto
CPU : QX9650 @4.5Ghz 1.6v Nexxxos XP
Mainboard : Maximus Extreme
Memory : 2X1024 cellchock PC14400 880 76518 1.9v
Graphic cards : HD3870 crossfire 855/1350
Drivers : 7.11
3DMark Score 23254 3DMarks
SM 2.0 Score 9259 Marks
SM 3.0 Score 10355 Marks
CPU Score 7154 Marks
http://img518.imageshack.us/img518/3...6232541bg3.jpg
http://img518.imageshack.us/img518/3...7269915811.jpg
damn this card still scales up ...even at 4.5ghz...
sishh
neary 900points jump on sm3...
a bit disappointed that penryn quads cant hit 500fsb
hmm looks like have to find a batch no that can.
Wow, great results Pinto, gotta love these 3870's in crossfire. Hopefully, when the drivers mature, we'll see even more.
The bios seems fine. Haven't tried any voltage increas bioses, but I've run a 3d06 at 891/1395. The score was only 10.5K, but then I'm running a Opty 185 at 3.1 and a untweaked Vista.
anybody can a way of getting that gecube HD3870 OC bios??
http://www.iax-tech.com/video/3800biosmod/03.htm
currently trying the 830/2400
hmm can somebody check the voltages for the 3 bios for hd3870 ....
ty
oh yeah the reason i ran the 830/1200 cause this was supposedly the original clocks for this card.
oh yeah how come those guys have a editor..
that looks like an amd editor
i thought the amd clock editor doesnt work right or hd3870 because of the toolib file..
can to enlighten me on this ppl??
If you're asking you probably havent done enough research..
Well, I can confirm that modding the voltage values in the bios has no effect. My temps are exactly the same under load...43C @ 877/1314 using ATiTool cube, and it did not help me gain any room on the Core.
Back to the drawing board
Did anyone get a blank screen after flshing any of the overvolt BIOS?
I'm getting blank screens...
Seems everyone is using the overvolt BIOS just fine except me...
Have I got the unlucky GPU?
Anyone Help...
What brand of 3870 seems to oce the best?
For now all the HD 3870 are on reference design...
So it seems that the brand really matters...
It's just how lucky you get with your GPU and RAM...
Apparently I see no different designs of the HD 3870.
The overclocked version simply has a BIOS that overclocks the core a bit which you can achieve simply by flashing the BIOS.
Not exactly the questions you should ask considering the nature of the forum.
Why are the 1.377v and 1.499v BIOSes missing a product name and BIOS version...
Also it give the device ID 0.
I've tried dozen of time and could only get a lousy blank screen!!!:mad:
I am really anxious to try out the BIOS but since I'm getting blanks nothing can be done with the volt modded BIOS.
Am I using it the right way?
a:\atiflash -f -p 0 biosname.bin
this command shoudl suffice...
Help Please~~~ :confused:
The question was which brand is known to have high capability on overclocking...
It is undoubtedly dependent of the temperature but the VGA product itself is the same reference design with the same stock cooler and BIOS...
So what I was saying is buying a different brand of HD3870 is independent of the overclocking capabilities...
Uhmm to bad I expected more from the HD3870 cards.
8800 GT's can overclock from 600 > 735 thats more then 20%. And these cards have problems hitting 875 from 775 MHz. 13,3% only.
I guess my HD3870 wont be any better then the ones you have here. And that bios is not unleashing anything. Only if you go voltmodding :) To bad is was hoping on a OC monster and clock like 900-950.
I agree. I am just as disapointed.
I was hoping for this 55nm tech. to not only OC and be on par with the 8800GT, but to consider it performing better than the 8800GT due to this "new core", which is showing colourless "flying colours".
I'm not giving up hope yet though. This card is very new. and The drivers for it are very new.
I just dunt understand how some people here are reaching above 860 core, and some cant?
It's the same core!! Yes temps matter but mine are so low! 31C idle, under 56 load!
WTF....
I'll wait a bit longer, maybe a month. But if nothing improves, screw you ATI. i'll spend the extra cash to get a REAL gamer's graphics card.
it's too bad ATI's image quality is highly addictive tho...blargh :down:
ALSO:
I read at sapphire forums that the 3870 is built on the same principles as the x1950. from what i remember in the early days of the 1950pro's, the low level OCing for the memory only worked in 27mhz incriments.
Just an idea...
Sorry to hear about your troubles. If you're not getting over 860 then there are a few possiblities. One, maybe you didn't get the new bios flashed correctly. Two, you need to use a better cooler. Three, you just got unluckly. Not all of these are going to overclock as well as others. I wish I could get the 900 core some people are getting. Also things will oc a little more when we get some increased voltage. Overall, I'm very happy with mine, cant wait to get another and run some crossfire.
Okay guys, I finally Oc'ed at stable clocks.
3dmark06 FULL TEST passed.
Score: 12051
Clocks: Rivatuner reads 885/1291
GPU-Z reads 877/1287
I used rivatuner to OC, catalyst overdrive is junk. And the autotune doesn't mean anything. Sure it can run those clocks, but not when gaming!
I'm going to try to aim the mem for a bit higher.
Since my mem is rated 1200mhz, usually 100mhz oc is very possible.
Using non volt modded bios.
PCIE Freq. at 104mhz.
be back soon!:up:
I just ordered a ATI HD 3870 w/ an 835 core and 2400 (!!!) RAM. i cant wait to set it up, unfortunately space limits me to wait for a new case @ christmas
What model did you get and where did you get it from?
I'v been keeping eye on this thread and have gotten lots of useful info so i
though it'd post my Oc'ed results
This is my Stable Overclock of 12284 3dmark 06
http://img406.imageshack.us/img406/4...k062po4.th.jpg
managed to get a complete 3dmark 06 bench on 891 core but
was not stable when it came to gaming
http://img514.imageshack.us/img514/1...rk06tq0.th.png
This is with the stock cooler with fan fixed at 70% but i have ordered a Accelero AC-S1 should arrive on Thursday then might try out the higher voltage bios see if i can get a greater OC
i got the extreme-pc xxx edition, made directly at the ati fab. it's the roxxors
Okay. Here it is.
I have discovered that running 3dmark06 once means nothing. Run the test 3 times in a row (it's a setting if u have the full version). That will determine true stability.
At certain higher clocks, It would complete 3dmark06 just fine. But if I set it to repeat x3, it would crash.
So the most stable clocks I have achieved are:
885/1311 <---EDTIED: accidentally put "855" on initial post
GPU-Z reads: 877/1296
3dmark06 Full testsx3 FINAL SCORE: 12198
I'd say, not bad. Not bad considering no voltage mods.
Remember people, those 1.377v and 1.47v bios's don't do anything.:cool:
885 will give you 877.5. Just tried it myself with Riva Tuners own hardware monitoring. The core will only increase in 13.5 increments. So 864, 887.5, 891, 904.5. Not sore if this is bios controlled or not. So even if you try 890 you'll still get 877. Hit 900 and you'll get 891, etc. Haven't checked how the memory increments.
wow...THANK YOU for informing me about this! I was hitting VPU recover all the time until i tried that actual 877core setting via rivatuner.
Has anyone tried those clocks mentioned above (877.5, 891, 904.5) with the new volted bios's?
Because of not, I'm the first to volunteer :)
volt modded bios do not work.
Okay, What about PCI-E frequency? what mhz should be used with SATA drives, and regular IDE drives?
I've read that ATI cards can't handle higher frequencies like the nvidia cards, is this true?
bump!
*note* I am using a MSI P35 Neo2-FR motherboard (P35 express chipset)
UPDATE:
Using RivaTuner and setting clocks to: 877:1339 is working flawlessly. I'm usin the 27mhz incriments increase on the memory (1126+27+27 etc...).
It's an old property of low level OCing of the 1950pros, so I guess it is based on the same principles..
Anybody else know anything about this? :confused:
Right now I have it at 110mhz, Going to leave it at that for now. I read that going over 125mhz can damage your SATA drives, I tried 125 and got no post, had to press the magic button (Cmos reset)!
UPDATE:
Okay 27mhz increments increase on the mem seems to be the most stable. I'm currently experiemnting with 21mhz increments as well.
I tried 7mhz increments, and that resulted in VPU recover.
I was able to run at 1339 using 27mhz increments but was getting artifacting. So right now my mem is at 1315 with very very little to no artifacting using 21mhz incriments.
Actually, i think the very very little artifacting is caused by the catalyst A.I. :up:
I have compiled a new thread based on the Sapphire 3870 version.
http://www.sapphiretech.com/en/forum...916#post102916
Guys...stop clocking for 20 minutes please.
We all need/want voltmods for these cards...
Please can someone (ideally someone who also has a DMM) take some high-res fairly close-up pics of the control ICs for the cards and post them up here:
http://www.xtremesystems.org/forums/...d.php?t=166623
The labels on the ICs would also be welcome :)
Im also surprised very few people are using water.
Come on!!! Grow a set! :D
UPDATE: Older games like CSS and NFS carbon were running fine for hours at mem 1315 but when I ran COD4, I got VPU Recover. I put the mem back to default to make sure core was stable at 877mhz and it is.
Currently testing mem at 1288 (27x6) on newer games for stability:up:
this is mine,brand sapphire,memory clock really boost alot of pts:D
aq3
http://img413.imageshack.us/img413/5289/aq33tv1.th.jpg
3d01 is about 63k iirc,sorry..forgot to take screenie
3d03
http://img524.imageshack.us/img524/9...5143cn4.th.jpg
3d05
http://img442.imageshack.us/img442/1...5223vc0.th.jpg
3d06
http://img210.imageshack.us/img210/6...3842jf3.th.jpg
cooled with accelero s1 + 2 panaflo
do guys ccc overdriver to overclock cf settup? use rivetuner for turn up the fanspeed?
my 2 hd3870 is running at stock with q6600@3.7ghz got 18,5 i 3dmark06 her (7.11 cat driver)
ffs.. listen to K404.. stop posting your max clocks and lets focus on getting the BIOS volt mod up and running. :)
so no volt mod yet??? i am really interested in the volt mod, as i picked up one of these, about to get me a second one for crossfire.
after some testing, my max of this diamond 3870 is 850/1250 and i gotta say, this card is crap compared to my 8800GT, this thing is going back first thing tommorrow morning.