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Can I add a PCI-E x1 card to boost performance?

Last response: in Graphics & Displays
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February 5, 2012 3:45:40 AM

Ok, I am trying to add to my overall system performance by adding a second video card to run physics. My problem is my Mobo only has one PCI Express x16 lane. I found that Zotac makes a card that will run in the PCI Express x1 lane. If I were to add this card to my system would it conflict with the Nvidia card in the x16 lane? Here are my PC Specs as it is right now.

MSI P43 C51 Socket 775 Mobo
Intel Core 2 Quad Q9550
8 Gb Crucial DDR3 1333
Nvidia GeForce GTX 460 GS CO PCI-E x16 2.0
CORSAIR Professional Series Gold AX850 850W PSU
Antec KUHLER H2O 920 Liquid Cooling System

The Mobo Specs have this to say about the PCI Lanes:
• One PCI Express x16 slot (PCI Express Bus SPEC V2.0 compliant).
• Two PCI Express x1 slots. (support PCI Express Bus specification v1.0a compliant)
• Three 32-bit v2.3 master PCI bus slots.
- Support 3.3v/5v PCI bus interface.

The specs say nothing about SLI so I assume it does not support it. The only question that leaves me with is weather or not putting the second card in the x1 slot would even work. I don't need the added display ports the card offers. I only want to use it as the primary Physics Processor so i can free up the GTX 460 and the CPU for everything else. This is similar to what I have seen done in dual and tri SLI setups.

Here is a link to the card I am considering adding if this is thought to be a viable solution.

Can anyone help me with this?

Thank you.
February 5, 2012 4:00:06 AM

Even if it did work it wouldn't be worth the cost. It'd be better to get a board designed to support SLI instead of wasting the money on a 2nd gpu that if it even worked, would probably give only minimal increases.

That said, I've never heard of it working.
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a c 191 U Graphics card
February 5, 2012 4:10:00 AM

If anything to be brutally honest, it would be a huge waste of money. It would not improve your gaming performance at all and if anything it would just suck power and waste even more money.

I'm also pretty sure the GT520 does not support SLI. Either way, it is a really really really really really really bad card, not even worth it to buy. Nvidia does not really make any good low-end cards.

Also, unless you play a carp load of Mafia II, getting a discrete Physx card is not even necessary, and any games you do play that require Physx the GTX460 would be more than happy to do. The GT520 would most likely make the system, because if cannot process things as fast as the GTX460.

What are you looking to do that your GTX460 cannot?
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February 5, 2012 4:19:09 AM

Well really there isnt anything I have run into that the system can't handle so far. But I am planning on buying Battlefield 3. I have been told that my system won't play it well on even moderate graphics settings so i wanted to add another card to maybe help out this problem. But if it wont work it wont work. I'd rather not waste allot of money if it wont work. lol Hence my post. :) 
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a b U Graphics card
February 5, 2012 4:21:47 AM

It should work fine on medium/high settings. Dont expect eye popping candy with the 460, but it should run fine.
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February 5, 2012 4:27:36 AM

ok. I guess I will just have to save some money and get a better card then. :)  Maybe the 580 or 590 classified.
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a b U Graphics card
February 5, 2012 4:31:18 AM

500s will drop in price soon, already started a little bit. The 600 series is coming out in April should bring them down even more.
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February 5, 2012 4:34:54 AM

Awesome!! Maybe they will fall into my budget then. :) 
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a b U Graphics card
February 5, 2012 8:59:12 AM

pciex1 for phyx will increase performance a little in phyx enable games only, upto x4 slot is sufficient to get full performance of a dedicated phyx card
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a b U Graphics card
February 5, 2012 9:19:57 AM

I don't think bf3 runs phyx anyway
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February 5, 2012 9:32:11 AM

truegenius said:
pciex1 for phyx will increase performance a little in phyx enable games only, upto x4 slot is sufficient to get full performance of a dedicated phyx card


So are you Saying that adding the card in the x1 Slot wold actually work in my system? Or are you referring to a system that has on-board video?
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a b U Graphics card
February 5, 2012 10:00:23 AM

your 460 as main card + 520 as dedicated phyx card at pciex1 v2.0 will boost your performance in phyx enable games when cpu is not bottlnecking (c2q is not bottleneck)
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February 5, 2012 10:06:28 AM

truegenius said:
your 460 as main card + 520 as dedicated phyx card at pciex1 v2.0 will boost your performance in phyx enable games when cpu is not bottlnecking (c2q is not bottleneck)


May be a stupid question but what is c2q?
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a b U Graphics card
February 5, 2012 10:07:34 AM

There are so very few PhysX games tho. The 460 should be fine for now, if you want extra performance wait for the 600's.
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February 5, 2012 10:09:00 AM

truegenius said:
your 460 as main card + 520 as dedicated phyx card at pciex1 v2.0 will boost your performance in phyx enable games when cpu is not bottlnecking (c2q is not bottleneck)


Also I think the x1 lane is only v 1.0a compliant. Will this make a difference?

Will the second card help in any other way not physics related? Or is it in your opinion a waste of money?
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February 5, 2012 10:26:50 AM

vrumor said:
There are so very few PhysX games tho. The 460 should be fine for now, if you want extra performance wait for the 600's.


I'm considering just getting the EVGA 01G-P3-1561-KR GeForce GTX 560 Ti FPB (Fermi) 1GB 256-bit GDDR5. ]http://www.newegg.com/Product/Product.aspx?Item=N82E16814130623] My 460 is an awesome card for all my games but I think its gonna be a bit slow in BF3. And the 560 is only 230 bucks. I'll work a couple weekends of overtime and buy it or something. Wish I could afford the 590 Classified but its way to high priced for my wallet. lol
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a b U Graphics card
February 5, 2012 10:32:22 AM

i used c2q as a short for of core2quad cpus

your pciex1 are v1 (pciex8 v1 = x4 v2 = x2 v3 in bandwidth)
yes yours is v1 (provides 250mbyte/s bandwidth)

using a dedicated phyx card for non phyx games will not gain any performance
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February 5, 2012 10:58:34 AM

truegenius said:
i used c2q as a short for of core2quad cpus

your pciex1 are v1 (pciex8 v1 = x4 v2 = x2 v3 in bandwidth)
yes yours is v1 (provides 250mbyte/s bandwidth)

using a dedicated phyx card for non phyx games will not gain any performance



OK. So basically the Only performance gain I would get from adding this card would be Physics related. I get it. I think I will just scratch this idea and get the 560 ti. lol

Thank you to everyone who replied. I appreciate your help! :) 
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a b U Graphics card
February 5, 2012 11:47:50 AM

The 560 TI is a minor upgrade to a 460. Id wait for the 600s to find something worthy of spending your cash on for a true upgrade.
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a b U Graphics card
February 5, 2012 1:38:07 PM

^+1
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February 5, 2012 6:26:47 PM

Ok then, I will wait and see what they come out with. :) 
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February 5, 2012 6:27:40 PM

Best answer selected by etrnlxdarkness.
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a c 271 U Graphics card
February 5, 2012 7:01:39 PM

This topic has been closed by Mousemonkey
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