AGP-4X in a AGP-2X slot ?

By chembrouk
Mar 4, 2002
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  1. AGP question

    Is it possible to use a AGP x4 card in a mobo that only has a x2 AGP slot, what effects does it have on the card if it works??
  2. ToRN

    ToRN Newcomer, in training Posts: 189

    The 4X AGP card will run at 2X AGP. Not real performance difference noticeable.
  3. chembrouk

    chembrouk Newcomer, in training Topic Starter

    Will the switch from 4x to 2x be automatic or is it a jumper setting on either the mobo or 3d card, a bios setting. The card I intend to get is a Geforce 2 ultra or Geforce 3.
  4. SNGX1275

    SNGX1275 TS Forces Special Posts: 12,419   +281

    The its not so much a switch, rather than it is just forced to run at that. The BIOS controls 1x,2x,4x not the card. The card is just 4x capable. So you will be fine putting the gf3 in that.
  5. Th3M1ghtyD8

    Th3M1ghtyD8 TechSpot Paladin Posts: 794

    You won't be missing a lot with only 2x - a few 3d marks maybe .... but they change like the wind anyway.
  6. Nodsu

    Nodsu Newcomer, in training Posts: 9,431

    I've seen some cards with a 'turbo' jumper on them that is supposed to switch between 2x and 4x. But I don't think it matters if you have 4x turned off in BIOS.
  7. svtcobra

    svtcobra TechSpot Paladin Posts: 875

    Dont worry to much about the 2x-4x. 4X has been proven to be unstable in some games. Your better off running 2x. You'll be forced to avoid some problems!
  8. Federelli

    Federelli Newcomer, in training Posts: 382

    the card will run at 2x and maybe u'll se a perfoarmance increase!! :):):) cuz it's not working at it's max rate
  9. ---agissi---

    ---agissi--- TechSpot Paladin Posts: 2,382   +15

    DONT WORRY

    DONT WORRY ITZ FINE IN A 2X SLOT;) :D :cool: :p :grinthumb :blackeye:
  10. Rick

    Rick TechSpot Staff Posts: 6,304   +52 Staff Member

    Re: DONT WORRY

    W0rDz 0f WizD0m
  11. Federelli

    Federelli Newcomer, in training Posts: 382

    Re: DONT WORRY

    ;) :D :cool: :p :grinthumb :blackeye:= Wizdom heheh
     
  12. ---agissi---

    ---agissi--- TechSpot Paladin Posts: 2,382   +15

    MY QUOTE NOW=FAMOUS! YAY, WiSdOm, YeS.:D
  13. Tawhid 1

    Tawhid 1 Newcomer, in training Posts: 59

    it will run very slow as it realy & you will not get the best effect while working.
  14. land

    land Newcomer, in training Posts: 21

    1. yes you can run it (but only in 2X, naturally) and normally you do not need to deal with any jumpers or such stuff
    2. there will be little performance difference in the vast majority of apps and games (it is the older chipset that may actually keep you vidcard back rather than AGP 2X)
  15. cowlin

    cowlin Newcomer, in training

    Re: AGP question

    My motherboard supports AGP 2x, When I tried to install a AGP 4x vedio card I got error message "This device cannot find any free input/output range (I/O) resources to use (code 12). If you want to use this device, you must disable another device that is using the resources this device needs.
    I can find no conflicts in device manager. I removed sound card no help also eithernet card no help amd an old dial-up modem card no help.

    Old video was Geforce2 pro with 64 ddr
    New card is a Geforce 5200fx with 256 ddr

    Any ideas on what the conflict might be?
  16. bajan

    bajan Newcomer, in training

    Re: Re: AGP question

    This is not necessarilly a problem with your Windows configuration but rather the BIOS itself. A lot of BIOSes allow you to select which IRQs are available for PnP or which ones you would like to configure yourself.

    Take a look in your BIOS and see if you see anything to that effect. I won't be able to tell you exactly where to look because i don't know which kind of BIOS your motherboard has.

    Hope that helps. ;)
  17. cowlin

    cowlin Newcomer, in training

    Re: Re: Re: AGP question

    I checked Bios these are what I found that might do with video.

    VGA Boot From ...................AGP
    PCI/VGA Pallet Snoop..........Disabled
    Assign IRQ for VGA..............Enabled
    Concurent PCI/Host............Disabled
    AGP Aperture size...............128m
    VGA......................................On

    IRQ 3..................(com2)...............Primary
    IRQ 4..................(com1)...............Primary
    IRQ 5..................(LPT2)................Primary
    IRQ 6..................(Floppy Disk)......Primary
    IRQ 7..................(LPT1)................Primary
    IRQ 8..................(RTC Alarm)........Disabled
    IRQ 9..................(IRQ 2 Redir)......Secondary
    IRQ 10................(Reserved).........Secondary
    IRQ 11................(Reserved).........Secondary
    IRQ 12................(PS/2 Mouse).....Primary
    IRQ 13................(Coprocessor)....Disabled
    IRQ 14................(Hard Disk).........Primary
    IRQ 15................(Reserved).........Disabled
  18. ---agissi---

    ---agissi--- TechSpot Paladin Posts: 2,382   +15

    rick, just asking, did you edit my post like that?

    "---agissi--- DONT WORRY ITZ FINE IN A 2X SLOT "

    I 1) wouldnt rite in all caps
    2) would have "ITZ"
    3) dont recall writing it like that esp. with all the smilies :\
     
  19. Nodsu

    Nodsu Newcomer, in training Posts: 9,431

    Either you should cut down your drinking or change your password..
  20. ---agissi---

    ---agissi--- TechSpot Paladin Posts: 2,382   +15

    considering im underage, and dont drink or do drugs, ill go change my pass
  21. cowlin

    cowlin Newcomer, in training

    Re: Re: AGP question

    Guess I have a memory conflict not a hardware conflict.
    Video uses memory locations

    D0000000 - DFFFFFFF
    F0000000 - F0FFFFFF

    VIA tech CPU to AGP controller Uses

    000A0000 - 000BFFFF
    D8000000 - E7FFFFFF
    E8000000 - EFFFFFFF
    F0000000 - F1FFFFFF

    Any way to change any of these?
  22. Mictlantecuhtli

    Mictlantecuhtli TechSpot Evangelist Posts: 4,916   +9

    Re: Re: Re: AGP question

    No, they're supposed to use the same memory locations, as it is an AGP card - AGP controller needs that too. Same thing if you had a PCI video card.

    You should also have shared memory with your card, AGP controller and PCI bus in A0000-BFFFF, which is the standard VGA memory area.

    I see your BIOS has an option "VGA: on", does that mean you have also an onboard graphics chip? If you do, try disabling it.
  23. cowlin

    cowlin Newcomer, in training

    Could find nothing in Motherboard manual about onboard graphics.
  24. cowlin

    cowlin Newcomer, in training

    I solved my problem by upgrading my Bios chip. New agp 4x card works now.
  25. Heavy_lvletal_

    Heavy_lvletal_ Newcomer, in training Posts: 34

    hmm, i need help now, im running a radeon 9200se 64mb 8x in a 4x motherboard, if i buy a new mobo will there be any performance increasr? ie, a mobo with the nforce 2 chip and 8x agp.
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