http://img529.imageshack.us/img529/4...9090523352.jpg
Unfortunately, ... but thank you for your interest. :yepp:
Printable View
http://img529.imageshack.us/img529/4...9090523352.jpg
Unfortunately, ... but thank you for your interest. :yepp:
Here are many users, who have access to datasheets which are not available for most of us. So lets wait and hopefully You can do hardmode.
Vmode done ... a special thanks to the user borec (Slovakia) from my home forum. Whether the benefit of all
http://img2.imageshack.us/img2/942/dscf5126.jpg
Pin 6 is FB?
Yes! :yepp:
hey Gestler how much more have you been able to push your card on air/ water after that mod ?
The card still works with the original cooler, water will be next week, 1.47 V = 1GHz stable 1.53 V = 1.1 GHz stable but the card is critical overheating.
http://img35.imageshack.us/img35/448...9090615515.jpg
nice result for air cooling :up: MSI VGA card are very good :)
Maybe just a good piece, otherwise the card is made very cheaply, we'll see how long it lasts
ceemic do you have pics of anymore of your vmods?? like indexed like your hd4850 ones?? ive seen more around the forums and your work is very nice. sorry for the off topic post guys
overclocking101, all my mods are here: http://ceemic.pri.ee/hardware/ :)
Pencil Vmod for Ram/4890 MSI Cyclone
Great thanks to the user borec (Slovakia)
http://img171.imageshack.us/img171/2743/vmem.th.jpg
http://img35.imageshack.us/img35/816...1001510.th.jpg
It's hell of a lot of good photos. Lots of cool ideas. Thanks. :clap:Quote:
Originally Posted by ceemic
Great work :up:Quote:
Originally Posted by ceemic
i have the powercolor HD4870 with the analog V-regs on it not the tandard design the non refrence design PCS+ can someone point me to the Vmod for it??
overclocking101, pictures please :)
ok will take some asap
overclocking101, NCP5388? http://ceemic.pri.ee/hardware/hd4850gs/
http://ceemic.pri.ee/hardware/datasheets/NCP5388.pdf
Measure def resistance between pin19 (FB) and pin14 (or any GND).
PS. Don't forget to remove the card from PC before. You should have done this before taking pictures also ;)
yep thats the chip ill pull the gpu out tonight and post measurements
well ceemic i can seem to pull any measurement off it at all
EDIT 16.31 kohms
overclocking101, if You are 101% right, then use 250k VR + 100k resistor in series. I used 100k VR on HD4850 with same chip and def resistance was definitely below 10k ohm.
9 times measure, 1 time mod ;)
ok ill measure again the chip orientation is a bit weird its backwards on the gpu
@gestler
thx for your Vmod!!! I tried this mod also successfully. I prefered a 50k spindle potentiometer using fan-GND.
a 20k delivers 1,47V with highest resistence.
My cyclone OC runs with 1,45V@1000/1100@82° still pretty quiet.
The heatpad between GPU and Cooler is a chewing gum, it should be replaced.
lowers the temp about 10°C to 20°C.
Meusi
Is possible with rbe change voltage over 1.158v on hd4850?
My 4850 1gb Sapphire is stable @ 750mhz 1.158v with furmark renamed extreme burn test... is it good or normal?