PCI-e Slots and SLI - Techist - Tech Forum

Go Back   Techist - Tech Forum > Computer Hardware > New Systems | Building and Buying
Click Here to Login
Closed Thread
 
Thread Tools Display Modes
 
Old 05-22-2010, 10:46 AM   #1 (permalink)
Junior Techie
 
Join Date: Dec 2009
Location: Georgia
Posts: 99
Default PCI-e Slots and SLI

My second gtx 260 is arriving soon, so I gave my motherboard a quick review to be better prepared. I noticed that my first video card is in the slot with "x16" written beneath it. The slot I had planned on putting the second card in has "x8" in it. There is then another with "x4" I believe. Do they make mobos with all x16 slots? What does that mean for performance? Will I still notice a considerable difference in SLI with the one x16 and one x8 slot? Just wanted to clarify so I know why I'm putting things where they are.

Thanks!
__________________

__________________
Case: CM Storm Scout
CPU: Intel i7 920
Mobo: EVGA x58 SLI LE
CPU Cooler: Noctua NH-U12P
PSU: Corsair 750w
Ram: OCZ 6GB
GPU: 2x EVGA gtx 260 in SLI
Monitor: Samsung p2350
JayMiller8080 is offline  
Old 05-22-2010, 10:58 AM   #2 (permalink)
Lord Techie
 
Slaymate's Avatar
 
Join Date: Feb 2009
Location: Florida
Posts: 7,946
Default Re: PCI-e Slots and SLI

Yes, they make mobo's with more than (1) X16 slot. You usually have to buy the more expensive model of a mobo to get all the advanced features.

I don't think you'll see any major performance loss with the X8 slot. The loss of performance is more pronounced as move up to faster and faster cards.
__________________

__________________
[SIGPIC][/SIGPIC]
Slaymate is offline  
Old 05-22-2010, 11:01 AM   #3 (permalink)
 
patonb's Avatar
 
Join Date: Jan 2005
Location: In Gov't Regulated Cubical
Posts: 9,745
Default Re: PCI-e Slots and SLI

I agree with Slay, I don't think the 260 will max out an x8 slot... btw both will drop to x8 when sli'd.
__________________
Foldie = i5 6600kMSI Z170A M5 EVGA 970 SC Corsair H100 Corsair hx520 2x8gb GSkill Corsair 650D
Woohoo = L5639 @3.1Ghz EVGA SR-2 gtx 260-216 Hyper 212+ Corsair 1050hx 6x2gb Corsair XMS3 Blackhawk Ulra
Alienware 18 - SLI 770M 4700mq 16Gig

patonb is offline  
Old 05-22-2010, 11:15 AM   #4 (permalink)
Junior Techie
 
Join Date: Dec 2009
Location: Georgia
Posts: 99
Default Re: PCI-e Slots and SLI

Quote:
Originally Posted by patonb View Post
I agree with Slay, I don't think the 260 will max out an x8 slot... btw both will drop to x8 when sli'd.
Aw, bummer. You said a gtx 260 wont max out an x8 though, so I should still get the most out of the SLI yeah?

Also, there is a possibility that its two x8 slots below the x16 one, but I can't remember. If I were to put both cards in two x8 slots, would that be the same performance as one in a x8 and one in a x16? I only ask because my case get a little cramped here, with the addition of another case fan, so I'll be looking for ways to either actually fit in the new components or improve air flow.
__________________
Case: CM Storm Scout
CPU: Intel i7 920
Mobo: EVGA x58 SLI LE
CPU Cooler: Noctua NH-U12P
PSU: Corsair 750w
Ram: OCZ 6GB
GPU: 2x EVGA gtx 260 in SLI
Monitor: Samsung p2350
JayMiller8080 is offline  
Old 05-22-2010, 12:15 PM   #5 (permalink)
 
patonb's Avatar
 
Join Date: Jan 2005
Location: In Gov't Regulated Cubical
Posts: 9,745
Default Re: PCI-e Slots and SLI

As far as I remember reading, most gpus perform with no limitations in an x8 slot. So yes, you will get the most out of the SLI.

If you have 2 x8s down low, they should work with no issues. You should see my case with 2 260s in an Atec 900 and DA700 psu.... packed comes to mind.
__________________
Foldie = i5 6600kMSI Z170A M5 EVGA 970 SC Corsair H100 Corsair hx520 2x8gb GSkill Corsair 650D
Woohoo = L5639 @3.1Ghz EVGA SR-2 gtx 260-216 Hyper 212+ Corsair 1050hx 6x2gb Corsair XMS3 Blackhawk Ulra
Alienware 18 - SLI 770M 4700mq 16Gig

patonb is offline  
Old 05-26-2010, 10:30 AM   #6 (permalink)
Super Techie
 
Graham's Avatar
 
Join Date: Aug 2005
Posts: 348
Send a message via AIM to Graham
Default Re: PCI-e Slots and SLI

Quote:
Originally Posted by patonb View Post
As far as I remember reading, most gpus perform with no limitations in an x8 slot. So yes, you will get the most out of the SLI.

If you have 2 x8s down low, they should work with no issues. You should see my case with 2 260s in an Atec 900 and DA700 psu.... packed comes to mind.
Far back as I can remember, gfx card bandwith has never matched the full capability they are provided. I remember when AGP 8X came out and I only had the 4X slot. My buddy got a x8 mobo same gfx card as me, and he didn't get any better fps even with a slightly better processor.

In the world of graphics cards, I don't think the bandwith they are provided will ever have trouble keeping up. At least for now.
__________________

__________________
- Intel i7-930 CPU @ 3.4 GHz w/ Zalman CNPS 9900 MAX
- Asus P6X58D Mainboard
- Corsair 1000W PSU
- Cooler Master HAF 932 Adv. Chassis
- SSD Intel 40 gig
- HDD: 2x SATA III 300 GBs
- LG Blu-Ray 8X
- Gigabyte GTX 670 WF @ 1098 Mhz
- Corsair Dominator 6 GB (2 x 2 GB Trip mode)
Graham is offline  
Closed Thread

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
PCI Express 2.0 & Power Supply? Wayne System Upgrades 8 03-08-2010 02:21 PM
EVGA Announces New 4-Way SLI Platform Osiris New Technology and Products 6 09-06-2009 07:35 AM
List of News Prototype New Technology and Products 4 10-29-2008 04:29 AM
Intel X38 Supports SLI ? maroon1 New Systems | Building and Buying 3 09-19-2007 03:37 PM
Desktop WiFi Card Doesn't Fit In PCI Slot? UsernameTaken Hardware Repairs and Troubleshooting 11 09-09-2007 09:42 PM



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 05:44 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.