Which GPUs could fit on my motherboard...

MrASSASSINo4ever · Feb 18, 2014

Only thing I know about my motherboard is that it is the Intel G41...
So I want to ask you can these following GPUs fit on it:

AMD 6670
AMD 7730
AMD 7750
AMD 7770

Thank you!

Ahmadjon · Feb 18, 2014

Yes but PCI-e slot can bottleneck
BTW PCI-e slot 1.0 2.0 3.0 are downgradable

OllieOxenFree · Feb 18, 2014

Ahmadjon :

The slot will not bottleneck any of these cards. PCI-e 1.0 x16 is the equivalent to PCI-e 2.0 x8. Check out the link I included showing the difference between 2.0x16 and 2.0x8. As you can see on lower end cards, the slot is not entirely saturated anyways and there is virtually no difference in frame rate. Your statement can be true when referring to high end cards with an extra large bandwidth.

http://www.techpowerup.com/reviews/AMD/HD_5870_PCI-Express_Scaling/3.html

OllieOxenFree · Feb 18, 2014

Also forgot to mention that AMD pci-e 3.0 cards are not compatible with PCI-e1.0 on some mobos if there is not a bios update released for them. nvidia 3.0 cards are compatible with pci1.0 slot without the update.

MrASSASSINo4ever · Feb 18, 2014

OllieOxenFree :

So.. That is no? Not any of these cards can go on it?

OllieOxenFree · Feb 18, 2014

The answer is yes and no. On some boards they will work. Some will require a bios update for them to work. Some won't have a bios released to address the issue so they won't work at all. The only things to do is research your board to see if it is capable, find an AMD card that isn't 3.0 or buy an Nvidia card. If you could tell us more about your PC, we can give you more specific answers(mobo model number, processor, power supply etc.)

BlacKHawK3 · Feb 18, 2014

OllieOxenFree :

Do you have a source for this? Part of the PCIe specification is backwards compatibility, i.e. any 3.0 should run at 1.0 on any 1.0 board.

OllieOxenFree · Feb 18, 2014

BlacKHawK3 :

The first link has some good info in the comments section after the right up as well.
http://www.overclock.net/a/the-final-answer-to-the-controversial-pcie-x16-version-compatibility
http://www.tomshardware.com/answers/id-1827823/pci-cards-work-pci-slot.html

BlacKHawK3 · Feb 18, 2014

OllieOxenFree :

Interesting. This issue must on a card by card (or motherboard by motherboard) basis, because I am currently running four different PCIe 3.0 AMD cards (a XFX 7790, a Sapphire 6950 flashed to 6970, a Sapphire 6850, and a VisionTek 6990), all on PCIe 1.1 or 1.0 motherboards (Dell, HP, and Biostar) with LGA 775 CPUs and old Intel chipsets. I have never had any problems AT ALL getting any of them working on any motherboard.

OllieOxenFree · Feb 18, 2014

BlacKHawK3 :

OllieOxenFree :

Interesting. This issue must on a card by card (or motherboard by motherboard) basis, because I am currently running four different PCIe 3.0 AMD cards (a XFX 7790, a Sapphire 6950 flashed to 6970, a Sapphire 6850, and a VisionTek 6990), all on PCIe 1.1 or 1.0 motherboards (Dell, HP, and Biostar) with LGA 775 CPUs and old Intel chipsets. I have never had any problems AT ALL getting any of them working on any motherboard.

Ya, I don't even think its a card to card basis. Just different mobos or bios. Maybe you didn't have issues because you always kept your bios current? I have an old e5500 on a 775 gateway(digitallife) mobo with the g41 chipset. We use it as our htpc and the kids play minecraft on it. I didn't take the risk with the 7770 and ended up just grabbing a gtx 650 at pretty much the same price.

MrASSASSINo4ever · Feb 19, 2014

OllieOxenFree :

Intel E3400 Core2Duo (Celeron)
2GB Ram 800Mhz (I will add 4GB soon)
I will upgrade PSU before I buy the card, I will upgrade it to 550W

That should be it... Model number for mobo? Hmm... G41T-R3 ... I don't know can that help lol

BlacKHawK3 · Feb 19, 2014

MrASSASSINo4ever :

You should be fine, but get a card that has a PCIe power connector since 1.0 and 1.1 mobos can't always supply 75 watts to a card that doesn't have the power connector. I'd go with a 5770, 6770, or 7770.

MrASSASSINo4ever · Feb 19, 2014

BlacKHawK3 :

MrASSASSINo4ever :

You should be fine, but get a card that has a PCIe power connector since 1.0 and 1.1 mobos can't always supply 75 watts to a card that doesn't have the power connector. I'd go with a 5770, 6770, or 7770.

I don't understand... I can't use 7750 but I can use 7770? I mean... The hell?

BlacKHawK3 · Feb 19, 2014

MrASSASSINo4ever :

You could use either and "probably" be fine, but you will stress your motherboard less if you don't feed the card 75 watts through the PCIe slot. It's a safer bet to feed the card from an 6-pin PCIe power connector, especially since you have a nice PSU on the way. Plus the 7770 has better graphics

MrASSASSINo4ever · Feb 19, 2014

BlacKHawK3 :

Hmm... That connector only comes with those cards? Can you buy it or it's just ment for those cards.
Also 7750 needs 75 wats... No more... So I guess I'm good either way?

OllieOxenFree · Feb 19, 2014

You cant buy it. It is built into the board on the card. You could also check out the GTX 750 or GTX 750ti they are 60w cards and outperform the 7750.

BlacKHawK3 · Feb 20, 2014

There is no way to add a 6-pin connector to a card that doesn't have one. The 750 Ti would be an excellent choice, because not only is it a great video card, but it is also available in a version with the 6-pin power connector: http://www.newegg.com/Product/Product.aspx?Item=N82E16814487028

Really though, there is a 99% likelihood that any of the above cards (5770, 6670, 6770, 7730, 7750, 7770, 650, 650 Ti, 750 Ti) would work just fine in your system. I would worry more about performance and price than any compatibility issues.

MrASSASSINo4ever · Feb 20, 2014

OllieOxenFree :

BlacKHawK3 :

7750 it is!

Found great price on it. Going to buy it!

Thank you!

Which GPUs could fit on my motherboard...

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