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Thread: 4870 1GB Help with bios please

  1. #1
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    4870 1GB Help with bios please

    Well, Ive got a sapphire 4870 1GB, got my watercooling up and running and Im looking for a way to edit my bios or find an already modified bios to pump my gpu voltage even by a little.
    My current stable gpu core speed is 855. Ive only pushed the memory up to 1000. Idle temp 33C, 43C under load. I used rivatuner 2.21 to OC.

    Ive read almost every post and there isnt much info about 3870 1GB cards and their bioses :S
    2600K @ 4800mhz
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  2. #2
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    "Originally Posted by Paulo Jorge
    Here's one at techpowerup : http://www.techpowerup.com/vgabios/2...24.080819.html
    Core: 800Mhz
    Memory: 925Mhz

    Don't know if it's the default or not"
    "Behold, I am Funkadelic. I am not of your world. But fear me not, I will do you no harm. Loan me your funky mind and I shall play with it. For nothing is good unless you play with it. And all that is good, is nasty!"
    ("What Is Soul," Funkadelic, 1969)


  3. #3
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    hmm, ... I can OC using rivatuner, and I see it offers 1.263v exactly as much as my bios does. I hope some other manufacturer offers more voltage. Thanks for the reply
    2600K @ 4800mhz
    ASUS MAXIMUS V FORMULA
    Palit GTX 670 Jestream @ 1201/1653
    G.SKILL F3-1600C9D-16GXM 16GB (2X8GB) DDR3 PC3-12800 1600MHZ RIPJAWSX DUAL CHANNEL KIT
    ENERMAX INFINITI 720W
    CoolerMaster Stacker Black
    OClabs MB-06 + Black Ice Pro 2 + Swiftech MCP655
    Samsung 840 Pro 2x 120GB SSDs Raid 0
    LG M2762D
    Logitech G19 + G9x

  4. #4
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    http://forums.techpowerup.com/showthread.php?t=67928
    have you read this already?
    i changed my 4870 1gb bios with the help of that thread.
    amd 940 @ 3.5ghz stock voltage or 3.7ghz 1,425v home made cpu block 3616 mhz and 2210mhz nb stable
    gigabyte ga-ma790fx-dq6
    sapphire hd4870 1gb @ 160-200 in idle , 750-950 load, with 2 rivatuner power profiles shortcuts.
    2x 2GB OCZ Blade 8500 ddr2 1066 @ 1.85 volt
    seagate barracuda 7200-11 1x500gb & 1x640gb (rip 1 500gb barracuda )
    seagate barracuda 7200-12 1TB , very nice hd, 5 degree colder then the 640gb
    windows xp 32
    lian li pc-a70b
    cooler master real power 850watt

  5. #5
    Registered User
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    Yeah Ive read it... this bios is for lower noise/stress on the card while in 2d mode. Not worth it when you use watercooling. From all Ive read so far, it seems like the voltage values are locked by hardware, so if one opens his original vga bios and checks the voltage values thats what he can play with.
    Unfortunately mine doesnt support more than 1.263v so I might be stuck with that. Too bad.
    Unless I do a voltmod...
    2600K @ 4800mhz
    ASUS MAXIMUS V FORMULA
    Palit GTX 670 Jestream @ 1201/1653
    G.SKILL F3-1600C9D-16GXM 16GB (2X8GB) DDR3 PC3-12800 1600MHZ RIPJAWSX DUAL CHANNEL KIT
    ENERMAX INFINITI 720W
    CoolerMaster Stacker Black
    OClabs MB-06 + Black Ice Pro 2 + Swiftech MCP655
    Samsung 840 Pro 2x 120GB SSDs Raid 0
    LG M2762D
    Logitech G19 + G9x

  6. #6
    Engineering The Xtreme
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    7,217
    Quote Originally Posted by nuttah View Post
    Yeah Ive read it... this bios is for lower noise/stress on the card while in 2d mode. Not worth it when you use watercooling. From all Ive read so far, it seems like the voltage values are locked by hardware, so if one opens his original vga bios and checks the voltage values thats what he can play with.
    Unfortunately mine doesnt support more than 1.263v so I might be stuck with that. Too bad.
    Unless I do a voltmod...
    voltages on the 4870's cannot be altered unless you do a hard voltmod, there is no possible pencil mod either.

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