To SLI or not to SLI

I was wondering if anyone running SLI can chime in and discuss SLI on Linux and the performance gains or lack there of.
I have a spare $500 sitting around burning a hole in my pocket and I was going to pick up another GeForce 7800GTX for my machine. However, I was reading on phoronix.com that the SLI gains in performance were small. I mean, if I only get 10fps difference in Quake4 then, for me, that doesn't justify spending $500. However, if there are other noticeable gains, like desktop performance with Xcomposit or other benefits that might warrent the purchase, I might go for it.
Anyone have any experiences they care to share?
Thanks!!!
Joe

EmbraceThePenguin wrote:
Cam wrote:Thats what I'm doing It's suppoed to be released at some conference around March 10. have you seen the specs on that thing :shock:
Actually, I have not been able to find a whole log of info on it.
Do you have any links?
Thanks!!!
Joe
I haven't been about to find a whole lot either, Nvidia are good secret-keepers
http://www.hexus.net/content/item.php?item=4343
http://www.nordichardware.com/news,3015.html

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Memory not recognized on MSI Neo4 Platinum SLI

I just installed another 512mb of RAM on this system:
MSI Neo4 Platinum SLI
2 x 512mb Corsair XMS XL PRO
1 x 512mb Corsair XMS XL (the one that doesnt work)
IDE HDD
Windows XP PRO
BIOS, and every program i run that can see system specs shows that the infact all 3 Sticks
are recognizable. Though...Windows and a program that shows me my physical memory max both
point out i have only 1 gig of RAM!?
It's there, just not being used?
Now the only difference with the XL version and the XL PRO version is the heatspreader,
everything else is the same....so nothing should be conflicting.
Since the computer somehow knows all my part's details..im thinking just because
the new ram doesnt have PRO that it may not be recognized to work together.
Even so...ram should downclock etc with this motherboard...so this stupid little name
issue shouldnt cause the computer to ignore the ram!
I tried switching DIMM slots, no luck.
Any ideas?

It's a AMD64 dual memory channel system motherboard/CPU.
Valid memory populations are
1.stick in one of the channels .(single mode 64bits)
1.stick in each channel .(dual mode 128bits)
2. sticks in one of the channels.(single mode 64bits)
4.sticks ,2 in each channel.(dual mode 128bits)
3 sticks is n/a.
The population on memory controller , it's initialization and modeselection , single/dual mode is chosen by the A64 cpu.
It's been said that later rev.E cpus can autoselect unmatched population between channels (of e.g 3.sticks) and
set the whole memory pool in single mode.
But i have never seen anyone successfully test/run it .

X99A SLI plus and M.2 not showing up in the BIOS

I just put together my new computer and I'm having trouble with the BIOS settings. When I attempt to set the M.2 as the primary boot drive it doesn't show up as an option. In the system status screen the M.2 / SATA port 5 is saying not present. I verified the SSD I have is on the supported list for this motherboard and have tried removing and reinstalling the drive with no success. Currently the drive shows up in windows when booting off a different hard drive. Does anyone have any idea what is going on with my build?
X99A SLI PLUS (CLICK 4 BIOS v1.7)
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Peg 1-2 Auto
M.2 Source link in auto
M.2 PCH strap in M.2 PCH PCIe

Windows doesn't recognize it as a bootable drive so it can't be installed on it currently.
Under the BBS section in the BIOS only the other three SATA drives are showing up, not the M2.
I think the BIOS is just not recognizing that there is a drive in the M2 slot for some reason although it is recognized by windows when I boot using a SATA drive.

X99S GAMING 9 AC Not booting - Debug 94 code - Issue with GTX 980 SLI in WoW

Hello, I bought the X99S GAMING 9 AC motherboard but have ran into some issues.
The computer won't boot when I put my second MSI GTX 980 Gaming 4 GB card in the last PCEI 3.0 port (PCIE port 5) and I get the debug LED message 94 on the motherboard. I have a SLI setup.
The first card I have in the second PCIE 3.0 port due to the Noctua U14S CPU fan takes up space for the first slot. So I have been running my grafic cards in PCIE slot 2 and 4 with some issues.
First the card in slot 2 gets really warm over 86 celsius. And second: SLI runs really poorly in World of Warcraft. I get a lot higher performance with just one card activated. I am not sure if it's cause I am not running my cards in the recommended PCIE 3.0 ports or because WoW has some issues with SLI, but I heard other people have no issues at all with WoW in SLI.
I got the same issue with 3Dmark firestrike, the cards perform really poor in SLI. I get higher score with SLI turned off..
Though SLI seems to run pretty well in 3dmark 11 and Diablo 3 Reaper of Souls.
But the main issue right now, is that the computer won't boot with the grafic cards in PCIE port 2 and 5. The solution to run them next to each other is not good, cause it gets really hot and I get bad performance in WoW and Firestrike.
Picture of my setup before I switched places with the grafic cards as you can see, it is really tight:
Any upcoming bios updates (got v1.3) that will solve this issue on the horization? Hopefully this get sorted out really soon..
My whole computer setup:
Intel i7 5820K | MSI X99S Gaming 9 AC (bios 1.3) | SLI MSI GTX 980 Gaming 4GB | Samsung 850 Pro 512 GB | WD Red 4TB | G.Skill Ripjaws DDR4 3000MHz 4x4GB | EVGA SuperNOVA P2 1000W | Noctua NH-U14S PnP | Fractal Design Define XL R2 | 5 Noctua NF-A14 PWM 140mm fans | Windows 7 Pro 64 bit

You must use the recommended PCIE slots as the manual says for your CPU type, PCIE #1 and PCIE #4 if I remember, just open the manual :P for optimal 2Way SLI, also your 5820k will limit to 28 pcie lanes only if you plan to add more vgas...the other problem is your giant CPU air cooler blocking PCIE#1, do a favor to yourself, buy a watercooler for your 5820k and your problems are gone, add some overclock in your system, low noise and better temps.
Here I use 3x980 in SLI with X99S Gaming 9 AC, going soon to WC the VGAs with EK blocks.....3way is far more temperature critical than 2way spaced one.
Cheers

Y410p, Y510p: SLI is not working in Win 8.1

QuestionWindows 8.1 is now available. With the latest Nvidia drivers for 8.1 x64, SLI is not an option. There are various suggestions to roll back to earlier (or earliest) Nvidia drivers for a solution. It is true, that with these drivers, SLI is now an option - and it is possible to set it to Enabled. However, it doesn't work.
I have 8.0 and 8.1 in dual boot, for easy comparison. SLI in 8.0 - clearly working... great performance.
SLI in 8.1 - not SLI performance, and in GPU-Z, it is clearly shown that one GPU is not under any load (also, not getting hot... further evidence).
At the moment, I have to use the 8.0 install only for gaming. Can someone please tell me -
1. Is 8.1 currently supported for the Y510p
2. If so, when can we expect drivers for SLI
3. Has anyone found a good workaround?
AnswerAfter updating to Windows 8.1 and related Nvidia graphic card drivers, customers may experience the following symptoms
-          Second graphic card is not detected or SLI is disabled
-          Nvidia panel indicates only one graphic card instead of two
-          Can install the graphic card driver but SLI is not working
-          SLI is enabled with legacy drivers but performance drops
You need to update vBIOS (video BIOS) which Lenovo just released it on 29 Oct 2013.
IdeaPad Y410p, Y510p:
NVIDIA GeForce GT750M Second VGA BIOS Update for Windows 8.1 (64-bit) - IdeaPad Y410p, Y510p
NVIDIA GeForce GT755M Second VGA BIOS Update for Windows 8.1 (64-bit) - IdeaPad Y410p, Y510p
Attention: Do not power off or restart your computer during the VBIOS flashing process, which will cause serious damage and improper functioning of your computer.
For Y400 and Y500 vBIOS, please check out this knowledge based article for more info.

So I got off from talking with Lenovo Rep. I also wanna get the y410p with sli. He/She seemed kinda slow... but oh well.You have been connected to ^Sirish Tallapragada.
Thank you for contacting Lenovo Sales Chat. My name is Sirish. My rep id is 2900713381. Happy to help you today.
Hi I am interested in purchasing the y410p either with nvidia 750m or 755m sli. Do you have any idea when they are releasing the ultrabay graphics modules for these? They already have the ultrabay 650m for the y400s so I'm guessing you guys will continue the trend.
Yes, We have that machine.
Yes, but they only have one graphics card in it. Is there an ultrabay module for the y410p's?
on the site, its called sli, like the y510p's do
The Y410p is available with the GT750m and the GT755m
Yes I know, but there is an ultrabay slot in the Y410p.
Which can be used to put in another gt750m/gt755m graphics card. This can be done on Y510p via putting this in: (I gave the link for the ultrabay 750m for y510p/y500)
will this option be available for the Y410p is my question
Okay
Will lenovo release the card I mentioned above that fits the y410p? The current one only fits the y510p
The link that you gave is for Y510p
I know.
Will you release a similar model that fits the y410p?
Yes, We will do that.
That might be available next month
Ok, great, I am looking forward it as a Christmas present. Thanks, that's all my concerns for today
I've heard other forums saying that they keep on saying in on month but I don't trust lenovo anymo....

Windows 7 x64 will not boot with memory upgrade (P6N SLI Platinum)

I recently bought 4x 2GB sticks of Crucial DDR2 memory. I originally had Windows 7 x86 installed, and with all four sticks in place there was no problem (except the memory limit for x86). All 8GB of memory registered fine though.
I decided to install the x64 version, but setup would hang at every step and installation took over 12 hours - Windows 7 would not boot either when it was complete. I removed all but one of the 2GB sticks and everything installed fine and it's up and running now. If I put the rest of the sticks back in, Windows begins to load but gets stuck at a black screen. I've swapped each 2GB stick in my system and they all work as long as only one is inserted at a time.
MSI P6N Platinum SLI (v1.7 BIOS)
Windows 7 x64 Ultimate
Intel Core 2 Quad @2.4GHz
4x 2Gb Crucial DDR2 @ 800 MHz
NVidia GeForce 8800 GTS 640Mb
I've done some google searching, and it seems like other people are having the exact same problem with the P6N boards, but I've never seen any solution...

The memorycontroller on that board is an oldie, got one myself and it will probably not run @800MHz with all slots occupied on a x64 OS.
That contoller is only rated for 667MHz when running all channells fully occupied.
The fact that you could run it so under x86 has probably to do with the fact it didnt adress all the memory, but only 3.25GB max and thus it was stable enough.
Now you are running an OS that uses all memory and thus it can become unstable while its running at a too high speed for the controller.
I had the same and could "only" get the memory to work @750MHz tops, before it decided to BSOD or bootloop on me.
This is inherent to its design (from NVidia, they made the chipset) and cannot be overcome, but dont worrie yourself, the speeddifference between 667MHz and 800MHz is negligible and will only show up if you run benches, in normal day to day use, you will hardly, if ever, notice it.
But, do you really need 8GB???
If you do gaming, internet, office and other "light" work, i.e. normal homeusage, 4GB is already more then enough.
8GB is nice if you use cad/cam, photoshop and other memory intensive stuff.

SLI clip failure, SLI mode selector card will not stay in place

Sometime overnight, the rubber clip securing my SLI mode selector card failed, and now the card won't stay seated in the socket.
Part of the clip that seats through the motherboard broke, and now I cannot use the clip at all. Where would I obtain replacements for this piece?
-El Queso

I have a few extra ones that came with my motherboard. they were in a little plastic pouch, did you not get any included? i would call MSI and ask them to mail you some, otherwise, i would gladly mail you a few myself.
Nick

P7N sli does not start up

hello
My p7n sli doesnt power on
i tested it using 2 different psu (both of them work fine in other systems)
I could check the psu fan does not spin when i hit the power button, nor when i short the power pins in the front pannel connector of the motherboard, so i think it is the reason why it doesnt start up
is there any other way to activate the psu?
please somebody help me

since i have no psu information on hand my psu is Thermatke tr2 430w
i am using it with my other gigabyte mobo and it works fine
24 pin and 8 pin connector were plugged in
The fact is that the psu seems not to start from the front pannel power pins (not even the psu fan spin
So i think it is the a problem with the power pins that dont activate the psu
2 different psu were used and the same thing happenned, but they are working right now with other systems.
I am testing it only with board, cpu with heatsink and fan, and ram (all of them tested)

Y510P SLI not working after update to Win 8.1

Hi, my SLI is not working after update to win 8.1. (i just factory reset my computer recently). i know that i have to update my vBIOS in order for my 2nd GPU to work in win 8.1. I have updated it and reboot my computer, but nothing happens and my 2nd GPU is still not working. I have checked in device manager that my 2nd gpu is working properly. I have not update my drivers to the latest since the factory reset. Please help me out

Hi Thanks for the help, i appreciate it. But, i have already updated my BiOS for the SLI before i posted this, the actual problem is that the 2nd GPU still does not work even after the update

Is it true that not one of MSI's P67 Chipset boards supports Quad SLI

I received a message from MSI when I requested a list of LGA 1155 boards that support Quad SLI. MSI stated that none of their 1155 socket boards support Quad SLI. I specifically bought my board because it was listed as a certified Quad SLI board in an article by Nvidia on "How to build a Quad SLI Rig" using 2 GTX 590s. Just a little disturbing if this is the case since I have been talking for pulling my hair out for 3 weeks and posting questions in this forum so that I could get a Quad SLI option in the Nvidia control panel and asking everyone for help. Just want to clarify that what this MSI employee is telling me is correct and that I would have to get a different CPU if I want to use MSI for Quad SLI or go to another MB Manufacturer (which I don't want to do).
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I believe there is a misunderstanding. MSI seems to have their own terminology in which "2 GTX 590s" are not labeled "Quad-SLI" but actually "nVidia (Dual GPU) ( 2 way SLI)" as opposed to "nVidia (Single GPU) ( 2 way SLI)".
This is the video card test list for your P67 board and if you scroll down you will see what I mean. A 2x590GTX setup wasn't actually tested, but you can find 2x295GTX and 2x9800GX2 setups in the list:
http://eu.msi.com/file/test_report/TR1_2313.pdf
In MSI's terms, "Quad SLI" is reserved for setups with four actual cards and from this perspective Quad SLI is not supported on your mainboard model (there are only 2 PCI-E x 16 slots (connected to the CPU's PCI-E interface that will run as x8/x8 as the CPU only provides 16 PCI-E 2.0 lanes).
I hope that clears things up for you.

Crashing issue with dual cards not in SLI mode

Running CS6 on a HPZ820 with 64GB RAM and TWO Nividia Quadro4000s... having some crashing issues - DisplaySurface.dll error. I am NOT running cards in SLI mode. Any ideas? I have some NewBlueFX plug-ins that I disabled the GPU - that helped. But now it started crashing again with same error. System was built up to specs.
Any advice?

Does it crash if you remove one of the cards?

Windows 8 64bit not compatible w/ AMD Athlon 64 processor and/or ASUS A8N-SLI motherboard.

Why should I have to go through a plethora of troubleshooting techniques, then have to settle for using the Windows 8/ 32bit install CD, when I have a 64bit system? I think it's probably something in the Windows
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for 32bit on a 64bit system?

I had the same experience trying to install Window 8 Pro 64bit (Build 9200) on an old XP SP3 32bit system, but I somehow got it working; the full story.
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Not seeing increase in speed with dual GTX880m (16GB in SLi)- Premier CS6 or CC

-I've enabled the "hack" so CUDA is recognized in Premier CS6 and CC but I don't see any difference in speed between software and CUDA.
Machine: OEN17-SLI
i7 4810mq 2.8ghz
32gb Hyperx 1600
Dual GTX880m in Sli
512gb SSD in raid0
thoughts on this?

In a laptop I am wondering if they really can support two PCIe X16 lanes. I would suggest that you download GPU-Z and look at this
This when the GPU is working hard this is what you should see, when not working it throttles back to "@x16 2.0" or to @x16 1.1" . But at least it is running with x16 lanes of the PCIe bus. In desktop systems when you install two GPU's it is not uncommon to see one or both fall back to x8. GPU-Z can run multiple instances so you can have two of these screens running and set one to each GPU. If this shows a throttling problem I doubt that there is any way around it.
Next lesson for the day is to then look at the Sensors TAB on the top of each and this is what you will see:
Notice the GPU Load item where we have 99% usage. So for this case my GTX 765M is being fully utilized.
If you also notice in both screens I have overclocked the GPU memory by 50% and achieved much better results but the GPU temperature is a very safe 56°C. In laptops they of course stress battery life, they achieve this ultra conservative operation by severe performance reduction.

I have 2 MSI 8600 GTS SLI. Only one is recognized in NOT SLI.

Hello,
Please help me.
I have 2 charts MSI 8600 GTS SLI. Only one is recognized in NOT SLI.
The ESATA_LED1 is extinguished, in SLI or NOT SLI.
The LED 1,2,3, are lit, in SLI or NOT SLI.
In SLI the switch card is in SLI Mode (x8/x8) and SLI Bridge Card is clipé: the LED6 is
extinguished, the LED4 and 5 are RED and the chart in slot PCI_E4 EAST
is perfectly RECOGNIZED.
In NOT SLI the switch card being in (not-SLI Mode (X 16) the chart in slot PCI_E4
does not appear nowhere.
Neither in the config panel, neither by the scan of Ma-config.com, nor by Everest.
And, of course, the screen connected on this second chart does not receive a signal.
The config off my pc is : http://ma-config.com/AfficherResume-19211-1.html
I thank very much for the help off receive.
armand

Quote from: armand jadot on 01-April-09, 04:24:48
- the second PCI Express x 16 slot (PCI_E4) is a special design that supports PCI Express x 8 mode only.
- the second PCI Express x 16 slot (PCI_E4) only supports to install graphics card in SLI mode.
Is this possible that one can exclusively use this motherboard only for the SLI system?.
And no for 3 or 4 screens ?
I say you a new big thanks for your respons.
armand
Yes its only for SLi, read the second line carefully:
the second PCI Express x 16 slot (PCI_E4) only supports to install graphics card in SLI mode
My board, P6N SLi platinum, has the same, I too can only use the second slot for SLi.
Inserting a card and not using switchcard results in no show for second card.
And if I do use switchcard and use another graphicscard, say a 8600GT in slot one and a 8800GT in second slot, results in BSOD or blank screen.
Maybe someone else here knows how to use 4 screens on your P6N SLi V2, if thats what you want.

MSI P6N SLI V2 does not boot up from cd/dvd and few other problems

HI
I just bought a computer P6N SLI V2 + E6750. It has following problem. It does not boot from cd.
I have Sata HD. CD/DVD is installed to IDE as a master.
I have done settings in bios so that First boot is cd/dvd and second is sata HD. Anyhow it still goes to the hd and stars windows.
I was only able to boot up from cd when I disabled hd from boot sequency. Meaning I left only cd/dvd there.
Hopefully you pro's can help me.
Then there is another problem. Windows is telling me that it found new pci device. I do not know what device. I have only Graphig card (geforce 8800 gts) installed into pci-E. Drivers and software are also installed, I assume proberly. How to find out what windows thinks it found.
Third problem is onboard soundcard. I cannot get any sound out from the machine. I have downloaded driver from realtek, but still no sound.
Unfortunatelly I do not have original software for motherboard. Only the latest from MSI website.
Hopefully someone can help me.
thanks.

About bootup, i dont know yet.
To find out what windows found, look in devicemanager.
To go there go to controlpanel, system then choose devicemanager.
There you can see what's installed.
Last, your soundcards needs to be enabled in bios, under integrated peripherals there should be a line with "onboard sound", enable this and sound should work, unless its broken.

SLI NOT WORKING

Having issues getting my motherboard to work correctly with SLI not sure how to enable it to all be read properly.
Motherboard- MSI Z77A-GD65
GPUS- MSI GeForce GTX660ti Power Edition
If anyone could just point me in the direction of which setting to choose in bios that would be greatly appreciated.
I think its also worth noting that windows is only reading one of the cards at a time.
I have already tested the cards every which way including trying them individually in a different machine.

Quote from: Nutfriend on 17-September-12, 09:35:36
Flash to the latest version A6D: [follow intsrunctions from the link]
https://forum-en.msi.com/index.php?topic=158257.msg1183124#msg1183124
Looks to be BIOS issue:
Code: [Select]
03.Fix some PCIE card can't detect issue.
then retest.

To SLI or not to SLI

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