I wouldn't recommend the other side. how did you burn it? can you show a pic? did you clean the area before soldering?Quote:
Originally Posted by rym
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I wouldn't recommend the other side. how did you burn it? can you show a pic? did you clean the area before soldering?Quote:
Originally Posted by rym
if you broke the via where the vmod connects to, then your card is probably dead. if it still works i'd suggest you leave it alone and enjoy while it lasts. if you cant manage to solder to such a point i dont think you should do voltmods, no offense.
this point is the only spot on the back side of the PCB
ok, the spot is somewhat like a mushroom , the head being the part you see
[a dot]. that part came off leaving the stock of the trace going to where it goes on the other side. Actuallythe dot its a hole going through the card to the other side connecting to a pin on an blacksquare thingy.
[ controls voltage i think]so the the head gone, leaving a smaller dot. to small to solder to. the trace still works fine.. so does the card. I hope you under stand . I can draw a picture if your brains arent working .. just kidding..
surface before ----- after -
so i was able to get 900/1255 stable and artifact free using pencil mods. 1.41v gpu, 2.07v memory. i really like this card.
Quote:
Originally Posted by rym
I don't need a picture, I won't be reading your posts anymore, as W1zzard stated if you couldn't solder to a pad, V-mods aren't for you. this is probably the simplest spot to hit in the history of volt modding, it is in the open with much more room around it than just about any others.
Sorry man I didnt mean to come off like that..
Just look at this pic. the solderpad is gone.. where else can I solder on the back side ? I know how to solder. what else can i do here beside the gpu side of the card. Oh i must off pulled the wire a bit when tunning in my 100 ohm variable resister to below 50ohm .
the solder pad came off.
http://i284.photobucket.com/albums/l...Picture011.jpg
randy
I don't have a card available to test. run yours as it is for now and keep checking the thread. if others find an alternate mod place this thread is where it will most likely appear.Quote:
Originally Posted by rym
Hi,
if it is to be made possibly to more V-GPU by software, soon :confused: W1zzard ?
My result :rolleyes:
http://www.abload.de/thumb/06erlj4.jpg
you can only do the bios mod to around 1.2v but thats it. not more possible in software
THX :)Quote:
Originally Posted by W1zzard
I meant the HD4870 not the HD4850 :yawn:
Got my 4850's working happy now at 800/1075, not tried the mem mod yet.
Did some testing with these cards last night on 3D mark 06 , i ran the tests a few times with my cpu @ 3.8Ghz and as i clocked the cards over a certain point the scores started to get worse
Q6600@3.8Ghz
750/1050 = 20229
800/1075 = 21328*
825/1100 = 21199
850/1080 = 21103
Very odd, if thats the case then i might back down my 1.4v to 1.25 if its not getting me any faster speed.
I need to try it in some other games/test.
__________________
Same answer though. the max the 4870 will give you is 1.263 or so.Quote:
Originally Posted by J.D.
Can someone please tell me what is the actual (via multimeter) gpu voltage of the stock 4870 (with stock bios and no mods) @idle and @load?
Thank you!
Its been asked for a lot but never given, i think 4850's owners bought all the multimeters :rofl:Quote:
Originally Posted by SetteUltras
:rofl:Quote:
Originally Posted by Devious
Ι am a 4850 owner too... trying to decide if 1.2V @idle / 1.45V @load is safe for every day use (800/1100)
my 4870 measure 1.3v stock from factory..800/1050 the other 800/1150 one hit 875 on th gpu with 1.35v
Iuse stock heatsink but rev up the fan speeds/oc via bios.
Thanks, so 1.3v it is. Im not sure what you mean by the other with 1.35v.
1.35 with volt mod
Thanks
1.3v both idle and load out of the box?
Because 4850 idles 1.08v while on load is 1.15v
a few questions about this.
i have a 4870 and am confident i can do the soldering. but the smallest pot i have is a 1k ohm 15 turn .75 watt. i stuck it on my DMM and adjusted it down to 50ohm, its a little sensitive but i think it will work.
do you more experience guys think this pot will work, or should i order a different one?
Order a different one.
I also suggest a 5 ohm fixed resistor in series to keep from creating a dead short.
Hi guys,
are you sure that this vdcc measure point is right?
http://www.techpowerup.com/articles/...s/overview.jpg
I read 12.17 volt:confused:
I've find the measure point and correct the photoQuote:
Originally Posted by diablos
http://www.pctunerup.com/up/results/...0_overview.jpg
I read 1.285V idle / 1.3V ATI tool load (840/1050, Sapphire HD4870 stock bios with fan mod)Quote:
Originally Posted by SetteUltras