Page 66 of 73 FirstFirst ... 165663646566676869 ... LastLast
Results 1,626 to 1,650 of 1814

Thread: ATI 4850/4870 voltmod thread

  1. #1626
    Registered User Gestler's Avatar
    Join Date
    Sep 2009
    Location
    Czech republic
    Posts
    24
    Vmode done ... a special thanks to the user borec (Slovakia) from my home forum. Whether the benefit of all

    Last edited by Gestler; 09-06-2009 at 07:32 AM.

  2. #1627
    Xtreme Enthusiast ceemic's Avatar
    Join Date
    Dec 2005
    Location
    Estonia, Tartu
    Posts
    890
    Pin 6 is FB?
    Vmods - what can possibly go wrong? ©

  3. #1628
    Registered User Gestler's Avatar
    Join Date
    Sep 2009
    Location
    Czech republic
    Posts
    24
    Yes!

  4. #1629
    Xtreme Guru Solarfall's Avatar
    Join Date
    Jun 2006
    Location
    Finland, joensuu
    Posts
    3,530
    hey Gestler how much more have you been able to push your card on air/ water after that mod ?
    Evga X58 sli under cascade
    http://www.xtremesystems.org/forums/...d.php?t=219788
    Evga X58 Sli ultimate overclocking/ overview/ discussion thread
    http://www.xtremesystems.org/forums/...d.php?t=221082


    proud owner of E8600 Q822A435

  5. #1630
    Registered User Gestler's Avatar
    Join Date
    Sep 2009
    Location
    Czech republic
    Posts
    24
    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.


  6. #1631
    Xtreme Member borec's Avatar
    Join Date
    Mar 2009
    Location
    Slovakia
    Posts
    159
    nice result for air cooling MSI VGA card are very good
    sorry for my bad english
    Team Inkognito is ready for overclocking!

  7. #1632
    Registered User Gestler's Avatar
    Join Date
    Sep 2009
    Location
    Czech republic
    Posts
    24
    Maybe just a good piece, otherwise the card is made very cheaply, we'll see how long it lasts

  8. #1633
    Banned
    Join Date
    Jul 2009
    Posts
    510
    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

  9. #1634
    Xtreme Enthusiast ceemic's Avatar
    Join Date
    Dec 2005
    Location
    Estonia, Tartu
    Posts
    890
    overclocking101, all my mods are here: http://ceemic.pri.ee/hardware/
    Vmods - what can possibly go wrong? ©

  10. #1635
    Registered User Gestler's Avatar
    Join Date
    Sep 2009
    Location
    Czech republic
    Posts
    24
    Pencil Vmod for Ram/4890 MSI Cyclone
    Great thanks to the user borec (Slovakia)


    Last edited by Gestler; 09-09-2009 at 04:58 PM.

  11. #1636
    Registered User arroyo's Avatar
    Join Date
    Aug 2008
    Posts
    56
    Quote Originally Posted by ceemic View Post
    overclocking101, all my mods are here: http://ceemic.pri.ee/hardware/
    It's hell of a lot of good photos. Lots of cool ideas. Thanks.

  12. #1637
    Registered User Gestler's Avatar
    Join Date
    Sep 2009
    Location
    Czech republic
    Posts
    24
    Quote Originally Posted by ceemic View Post
    overclocking101, all my mods are here: http://ceemic.pri.ee/hardware/
    Great work

  13. #1638
    Banned
    Join Date
    Jul 2009
    Posts
    510
    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??

  14. #1639
    Xtreme Enthusiast ceemic's Avatar
    Join Date
    Dec 2005
    Location
    Estonia, Tartu
    Posts
    890
    overclocking101, pictures please
    Vmods - what can possibly go wrong? ©

  15. #1640
    Banned
    Join Date
    Jul 2009
    Posts
    510
    ok will take some asap

  16. #1641
    Banned
    Join Date
    Jul 2009
    Posts
    510
    ok here they are :




  17. #1642
    Xtreme Enthusiast ceemic's Avatar
    Join Date
    Dec 2005
    Location
    Estonia, Tartu
    Posts
    890
    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
    Vmods - what can possibly go wrong? ©

  18. #1643
    Banned
    Join Date
    Jul 2009
    Posts
    510
    yep thats the chip ill pull the gpu out tonight and post measurements

  19. #1644
    Banned
    Join Date
    Jul 2009
    Posts
    510
    well ceemic i can seem to pull any measurement off it at all

    EDIT 16.31 kohms

  20. #1645
    Xtreme Enthusiast ceemic's Avatar
    Join Date
    Dec 2005
    Location
    Estonia, Tartu
    Posts
    890
    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
    Vmods - what can possibly go wrong? ©

  21. #1646
    Banned
    Join Date
    Jul 2009
    Posts
    510
    ok ill measure again the chip orientation is a bit weird its backwards on the gpu

  22. #1647
    Registered User
    Join Date
    Sep 2009
    Location
    Seekirchen a. W. / AUT
    Posts
    1
    @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

  23. #1648
    Xtreme Member devil_mcry's Avatar
    Join Date
    Jun 2009
    Location
    Italy
    Posts
    238
    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?
    i7 4770k @ 4.4GHz | MSI MPower | 8gb Geil Evo Corsa 2133 | Gigabyte GTX670 wf3 | Samsung 830 256gb | 3xWd Re3 raid5 | Antec HCG 620w

    Θ Core i7 4770k 4.4ghz 1.3v :'( Θ Core i7 2600k 4.5ghz 1.344v Θ E8400 500x8 4ghz 1.36v Θ Core i7 860 @ 4ghz 1.328v Θ Turion M500 2.2ghz 1.025v Θ Phenom II 955 c3 3.91ghz 1.52v Θ Phenom II 545 3.77ghz 1.47v Θ
    _~{ ALL RS }~_

  24. #1649
    Xtreme Member drizzt5's Avatar
    Join Date
    Mar 2008
    Posts
    473
    I did the pencil mod once again after a long break (I was using a vmodded 8800gt for a while).

    My temps appear good... Nothing on the 4850 itself goes above 49C's according to GPU-z and the voltage at this moment in time is 1.356 I believe using the first pencil mod. Right now I can clock the core between 820-850 it appears. I am moving it up 10mhz slowly so I will have a solid number soon.

    My question is how high should I go with voltage? I would prefer not to kill the card but I am interested in 900 on the core.... even if it is only for benchmarks (but if I can game with it even better!). I am going to do the 2nd pencil mod pretty soon

    I'm at 840mhz right now stable. I've been testing with a few races of GRID :P
    nvm, 830 is the highest with current voltage.
    Last edited by drizzt5; 10-02-2009 at 04:41 PM.
    Quote Originally Posted by Bobbylite View Post
    with great MHZ comes great responsibility
    CPU:Q6600 G0 @ 3.825
    Motherboard:Asus P5E X38
    Memory:2x2GB OCZ Reapers DDR2 1066
    Graphics Card:Asus 4850
    Hard Drive:2xSegate 500gb 32MB Cache raid0
    Power Supply:Xion 800W
    Case:3DAurora
    CPU cooling: D-tek Fuzion V2 (Quad insert removed)
    GPU cooling: mcw60
    Monitor:24" LG

  25. #1650
    Registered User JULO's Avatar
    Join Date
    Oct 2009
    Location
    Bydgoszcz, Poland
    Posts
    22
    That's my first post, so I say Hello to everybody

    I've done soldering vmod using W1zzard's method.
    Here are the results:









    and after suggestions from fellows from my home forum, I've added a cable ended with a crocodile to measure vcore





    http://www.techpowerup.com/gpuz/cfeyc/
    that's 940mhz @ 1.35V , at stock voltage this card did 710mhz

    Does anyone know how to go through Riva Tuner's 940mhz limit?
    sorry for my poor english skill
    Phenom X4 00 TWKR @ 4.0GHz | MSI 790FX-GD70 | HD4850 @ 800MHz

Page 66 of 73 FirstFirst ... 165663646566676869 ... LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •