Old Motherboard New GPU

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Tylerr

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I have an old abit ab9 pro and was wondering if it would work with a new graphics card.

i was thinking about getting a GTX 750ti, my current card is a gtx 8800 640.

Don't need anything insanely powerful since the cpu is old (q6600 oc'd) so that price point looked good to me.

Would there be any compatability problems? I saw this comment on the newegg page:

The GTX 750/750TI graphics cards are based of the new Maxwell architecture which may require some motherboards to update their BIOS information to be compatible with this new graphics card. The GTX 750/750TI is compatible with both UEFI and non-UEFI BIOS versions.
Click to expand...

though i don't know what that means.
 
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Eximo

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Hmm, haven't heard about an Abit motherboard in a while.

GTX 8800 should be a PCIe 1.0 x16 slot, so it will physically fit and be capable of being turned on.

You can try it without updating, but you might as well get the latest BIOS revision for your board anyway.

UEFI is the replacement for the standard BIOS. Supports higher resolution, user settings, use of mouse but also more modern boot devices like NVME drives AHCI, EHCI and XHCI being a few other standards that exist as compared to the old 'IDE mode'. Most companies use it to make a simpler user-friendly interface and leave the advanced options in a separate menu.
 
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Tylerr

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well i don't have it so i can't try it, wanted to find out before i buy.

But doesn't his comment basically say its compatible with all motherboards? "both UEFI and non-UEFI BIOS versions"

unless there's another type? I mean what exactly would make a gpu incompatible with a motherboard (aside from connections of course)
 
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Eximo

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I don't think anyone is going to be able to give you a direct answer. Newest Abit board I have doesn't even have an AGP slot, let alone PCIe.

Motherboard to GPU incompatibilities do exist. Usually some issue with the power input required. There are starting to be a few cards out there that don't like the old 1.0 slots and need a 1.1, 2.0, 3.0 slot to work properly.

Mixing parts ten years apart has its risks. Buy the GTX750ti from a retail store and return it if it doesn't work.

 
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Tylerr

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Wouldn't that have to do with the power supply and not the mb though?

i had to buy a new psu about a year ago so i'm good on that end.
 
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Eximo

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PCIe slots can carry up to 75W of power directly to cards. There are also some minor 5V and occasionally 3.3V supplied via the slot. Many newer cards provide their own internal voltage regulators and run exclusively on 12V.

Slot provides 75W, PCIe 6-pin = 75W, PCIe 8-pin = 150W

GTX 750Ti comes in at 70W, so most models do not require external power.

With an older board it may be wise to get one of the models that requires a PCIe 6-pin connector as a precaution. PCIe 1.0 with some vendors wasn't the best. Many PCIe 1.1 and 2.0 boards also had external power to the motherboards added to facilitate power via the slots when using multiple cards.

Chances are it will work fine. If it doesn't a BIOS update may solve the problem. Newer cards support newer PCIe standards and it may just need to know what signal to expect. Plug and Play is darn good these days, but there are still unknown problems that can occur.
 
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Tylerr

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Oh yeah i was definitely planning on getting one with a 6-pin, mostly because i don't like the default ports on it.

probably this one unless i come across a better one.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814125502
 
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jeffredo

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There's definitely a chance it won't. This summer I was playing around with old hardware of my own. Pieced together a system with an Athlon X2 on an nForce4 motherboard. Tried an EVGA GTX 750 Ti (no six pin) in it and it would crash within minutes of starting a 3D app (fresh install of Windows 7 64 Bit). Tried an MSI GTX 650 with a six pin and it performs perfectly. Been playing WoW Warlords of Draenor on it a bit (believe it or not) and it runs just fine. Slow, but fine.

Of course my old AMD nForce motherboard is not your LGA 775 (yours is several years newer), but I've read time and again Maxwells are finicky with old chipsets. Now I've experienced it first hand.
 
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Tylerr

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so the problem was it wasn't getting enough power from just the pcie slot?
 
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Eximo

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That is possible. Also with older boards you can expect some minor capacitor degradation which would make handling rapid demands for power more difficult. A sudden load will cause voltage droop which can be enough to trigger a fault.
 
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Tylerr

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does it still draw power from the board if you're using the six pin from psu?
 
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