try cooling them pal and see.Which mod did you say u used?Can you tel me the post #???
Printable View
try cooling them pal and see.Which mod did you say u used?Can you tel me the post #???
forums.techpowerup.com/showthread.php?t=48544Quote:
Originally Posted by crio
that one =) its in this topic also but not sure of the page number.
I have tried the r1222 mod but can't get past 1.45V.I have hd3850 256 sapphire randeon.The resistance has dropped to 0.6.The temps are great cause of my w/c (65C max).
I also tried the second mod at C613 but can't get it to work.What exactly do i do?I need help in order toget past tha 900mhz at core.With 1.45 i max it there.Tried 920 but 3dmark06 froze.
IN Need of 1ghz at core.
CAn anyone help me?
I got another Gigabyte HD3870 512MB DDR3 :cool:
http://ceemic.pri.ee/hardware/hd3870_2/hd3870_01.JPG
http://ceemic.pri.ee/hardware/hd3870_2/hd3870_02.JPG
http://ceemic.pri.ee/hardware/hd3870_2/hd3870_03.JPG
Time to renew my 3D2003 WR :p:
Without Vmod, it did 972MHz in warm room ;)
sapphire 3870 512MB @ 1050/1360 test passed on stock cooler/air/vgpu mod one and only mod
http://img137.imageshack.us/img137/1208/3870cq5.jpg
NapalmV5, what Vgpu? 3D stable?
i havent monitored voltage yet.. just used fixed resistor
can bench higher but this is what im gaming @ 1ghz core/1.3ghz mem on the stock cooler/air
http://img127.imageshack.us/img127/3833/01gc7.jpg
http://img58.imageshack.us/img58/1426/aquamd0.jpg
i gained 15mhz from just 1 cap replaced
http://img407.imageshack.us/img407/6807/recaplr1.jpg
its not from the lower temp/mem
its promising.. ill recap some more.. :)
What has capasitor to do with voltage? You mean resistor?
Thats great NapalmV5!Quote:
Originally Posted by NapalmV5
But what CCC your using? Mine is blocked @ 885Mhz.:down:
capacitor.. what capacitor has to do with voltage: filters.. expands or shrinks frequency..Quote:
Originally Posted by ceemic
thanksQuote:
Originally Posted by Jor3lBR
http://www.iax-tech.com/video/3800biosmod/03.htm
NapalmV5, sorry, I misread Your text. Ofcourse caps can give us higher OC stability. For higher Vgpu You used fixed resistor :)
Do You have any pics from that mod? There are 4-6 caps in PWM, am I right? You parallel-soldered some electrolytic ones or You removed the original and replaced it with higher tantalum-cap?
Thanks mate I'll see what I can do I just did a light mod (100k pot on DDR and bumped the core volt a bit).Quote:
Originally Posted by NapalmV5
BTW those are remarkable scores kinking some 4050 4070 butts! :up:
i didnt parallel cap/add caps.. ive tried it though.. @ diminishing resultsQuote:
Originally Posted by ceemic
so all i did to gain the 15mhz is i removed the 330uf cap (C730) and replaced it with a 1000uf blackgate fk cap
bam! easy 15mhz for a total of 1065mhz
lolQuote:
Originally Posted by Jor3lBR
the vddr mod offered only 10mhz :shrug: so i removed it
Hmm, I haven't the card atm my hand so I only have an older pic: http://ceemic.pri.ee/hardware/hd3870/hd3870_07.jpgQuote:
Originally Posted by NapalmV5
C730 is 16V/100uF :rolleyes:
330uf cap @ sapphire red pcb
ill post a pic later..
NapalmV5:Quote:
Originally Posted by NapalmV5
Yes maybe create a little guide those info are precious and the fact that you're able to share them is even more!
I wish I could ad those caps with the cards in place because I already finished my system and it would be a little tough to take them out. :up:
Just wondering is there different types of 100k ohm Potentiometer? I have one it's the Micro-Size Potentiometer from Radio Shack but they don't carry the rectangle shape ones.
panzerchaos47, "size" doesn't mather asfar it's multi-turnable (15-22 turns usually).
question, i have powercolor radeon 3870, on ddr3. does anyone know bout some vmod on it or it doesnt matter ? all are on same pcb?
mop231, is the IC also the same? http://ceemic.pri.ee/hardware/hd3870/hd3870_13.jpg (NX2420)
I'll post a pic of my card pcb ok? :p:
mop231, do that.
sapphire 3870 @ stock cooler/air 1065/1350 passed
his 3870 @ stock cooler/air 1090/1320 passedQuote:
Originally Posted by NapalmV5
http://img134.imageshack.us/img134/4404/10901320bh4.jpg
not done yet.. will try 20k resistor and see if passes 1.1ghz core on air :)