8800GTX SLI issue

PH3N0M · Aug 15, 2008, 05:56 AM

I have (2) 8800GTX 348 bit/768mb cards and when I attempt to run them in SLI mode, I get a split screen. What would be the cause of this? Do I have a dead card or do I just have a wrong setting somewhere?

**kris23** · Aug 15, 2008, 08:16 AM

sorry, i have no idea, but here are some general guideline points to check:

- are you running the latest drivers for your cards?
- if you are running up to date drivers, were the old drivers fully uninstalled?
- if they were fully uninstalled, did you use an version of DH Driver Cleaner to uninstall them?
- are your card temps within acceptable load ranges? (below 80C)
- is your PSU fine?
- did this problem happen just recently? or is this your first time running SLi?
- did you mess with any SLI settings?

well those are all possible problems, but for now i recommend playing with the nvidia control panel to see if you can find a solution.

PH3N0M · Aug 15, 2008, 08:40 AM

Well, I've found/fixed the problem with my screen being split in half. The only issue I have now is if I run it full screen, it flickers like a strobe light. I've got the latest drivers installed and vertical sync turned off but I can't figure out what would be causing the screen flicker. Any suggestions?

**kris23** · Aug 15, 2008, 08:44 AM

hmm..... i know certain SLi options can cause this, depends on the type of SLi....

have you tinkered with the different types of SLI because they each have their own effect

sorry i cant be of any better help..... nvidia isnt exactly my specialty.....

CDsDontBurn · Aug 15, 2008, 09:24 AM

are the NVIDIA SLI indicators enabled or disabled?

I suggest that you disable the indicators if they are currently enabled.

also, what was the problem/cause of this issue? You didn't mention what it was. Also, have you tried to run each card individually (meaning pull out the video card from the machine and trying them one at a time).

Also, what MoBo do you have? According to your specs, you have an AMD 570 chipset board, but depending on the manufacturer there may be BIOS configs that you might need to follow to have this working correctly.

Not really sure what else to go on if there isn't any more info here....

this coming from a guy who has an ATI card

**kris23** · Aug 15, 2008, 06:04 PM

ATI lol....

why u go ATi when ur occupation is uhh.... "that"

CDsDontBurn · Aug 15, 2008, 10:32 PM

because NV doesn't have an AGP gfx card as powerful as the x1950pro 512MB

PH3N0M · Sep 7, 2008, 12:44 AM

I found the solution to my SLI issue by accident. The dimwit who owned this system before I bought it had the SLI bridge connected to the wrong terminals thus causing the screen to blink because it couldn't access the other 8800 GPU. My chipset is a 570i Intel.

CDsDontBurn · Sep 7, 2008, 02:33 AM

to the other terminals?

on the 8800GTX cards it shouldn't matter which of the two SLI connectors you use.

PH3N0M · Sep 7, 2008, 02:45 AM

I'm sure it wouldn't matter normally but the other two terminals had a sticker covering the tops of them disallowing a proper connection to be made.

CDsDontBurn · Sep 7, 2008, 03:17 AM

oh. then yea, that would make a big difference then.

**kris23** · Sep 7, 2008, 04:02 AM

Quote:

Originally Posted by PH3N0M

I'm sure it wouldn't matter normally but the other two terminals had a sticker covering the tops of them disallowing a proper connection to be made.

lol thats pretty dim....

Aug 15, 2008, 05:56 AM	#1
PH3N0M The Master of Sarcasm Join Date: Aug 2008 Location: The U.S. of A Posts: 348 Rep Power: 35 System Specs	8800GTX SLI issue I have (2) 8800GTX 348 bit/768mb cards and when I attempt to run them in SLI mode, I get a split screen. What would be the cause of this? Do I have a dead card or do I just have a wrong setting somewhere?

Aug 15, 2008, 08:16 AM	#2
kris23 Going Insane..... Join Date: Dec 2006 Location: Los Angeles Posts: 5,990 Rep Power: 121 System Specs	sorry, i have no idea, but here are some general guideline points to check: - are you running the latest drivers for your cards? - if you are running up to date drivers, were the old drivers fully uninstalled? - if they were fully uninstalled, did you use an version of DH Driver Cleaner to uninstall them? - are your card temps within acceptable load ranges? (below 80C) - is your PSU fine? - did this problem happen just recently? or is this your first time running SLi? - did you mess with any SLI settings? well those are all possible problems, but for now i recommend playing with the nvidia control panel to see if you can find a solution. __________________ Hardwareheaven Super-Moderator Building a new computer system and not sure where to start? Click Here! last updated (5/18/11) Rosewill FUTURE case replaces CM 690 II with its greater interior length. Building a PC: Step by Step Guide Written by Kristopher Pedemonte and Nathan Marks-Forder Edited by Allan Campbell Questions or Comments? feel free to post them in the forums!

Aug 15, 2008, 08:44 AM	#4
kris23 Going Insane..... Join Date: Dec 2006 Location: Los Angeles Posts: 5,990 Rep Power: 121 System Specs	hmm..... i know certain SLi options can cause this, depends on the type of SLi.... have you tinkered with the different types of SLI because they each have their own effect sorry i cant be of any better help..... nvidia isnt exactly my specialty..... __________________ Hardwareheaven Super-Moderator Building a new computer system and not sure where to start? Click Here! last updated (5/18/11) Rosewill FUTURE case replaces CM 690 II with its greater interior length. Building a PC: Step by Step Guide Written by Kristopher Pedemonte and Nathan Marks-Forder Edited by Allan Campbell Questions or Comments? feel free to post them in the forums!

Aug 15, 2008, 09:24 AM	#5
CDsDontBurn 127.0.0.1 Join Date: May 2003 Location: Southern California Posts: 22,458 Rep Power: 202 System Specs	are the NVIDIA SLI indicators enabled or disabled? I suggest that you disable the indicators if they are currently enabled. also, what was the problem/cause of this issue? You didn't mention what it was. Also, have you tried to run each card individually (meaning pull out the video card from the machine and trying them one at a time). Also, what MoBo do you have? According to your specs, you have an AMD 570 chipset board, but depending on the manufacturer there may be BIOS configs that you might need to follow to have this working correctly. Not really sure what else to go on if there isn't any more info here.... this coming from a guy who has an ATI card __________________ Her First Day \| A year later

Aug 15, 2008, 06:04 PM	#6
kris23 Going Insane..... Join Date: Dec 2006 Location: Los Angeles Posts: 5,990 Rep Power: 121 System Specs	ATI lol.... why u go ATi when ur occupation is uhh.... "that" __________________ Hardwareheaven Super-Moderator Building a new computer system and not sure where to start? Click Here! last updated (5/18/11) Rosewill FUTURE case replaces CM 690 II with its greater interior length. Building a PC: Step by Step Guide Written by Kristopher Pedemonte and Nathan Marks-Forder Edited by Allan Campbell Questions or Comments? feel free to post them in the forums!

Aug 15, 2008, 08:40 AM	Thread Starter #3
PH3N0M The Master of Sarcasm Join Date: Aug 2008 Location: The U.S. of A Posts: 348 Rep Power: 35 System Specs	Well, I've found/fixed the problem with my screen being split in half. The only issue I have now is if I run it full screen, it flickers like a strobe light. I've got the latest drivers installed and vertical sync turned off but I can't figure out what would be causing the screen flicker. Any suggestions?

Aug 15, 2008, 10:32 PM	#7
CDsDontBurn 127.0.0.1 Join Date: May 2003 Location: Southern California Posts: 22,458 Rep Power: 202 System Specs	because NV doesn't have an AGP gfx card as powerful as the x1950pro 512MB __________________ Her First Day \| A year later

Sep 7, 2008, 12:44 AM	Thread Starter #8
PH3N0M The Master of Sarcasm Join Date: Aug 2008 Location: The U.S. of A Posts: 348 Rep Power: 35 System Specs	I found the solution to my SLI issue by accident. The dimwit who owned this system before I bought it had the SLI bridge connected to the wrong terminals thus causing the screen to blink because it couldn't access the other 8800 GPU. My chipset is a 570i Intel.

Sep 7, 2008, 02:33 AM	#9
CDsDontBurn 127.0.0.1 Join Date: May 2003 Location: Southern California Posts: 22,458 Rep Power: 202 System Specs	to the other terminals? on the 8800GTX cards it shouldn't matter which of the two SLI connectors you use. __________________ Her First Day \| A year later

Sep 7, 2008, 02:45 AM	Thread Starter #10
PH3N0M The Master of Sarcasm Join Date: Aug 2008 Location: The U.S. of A Posts: 348 Rep Power: 35 System Specs	I'm sure it wouldn't matter normally but the other two terminals had a sticker covering the tops of them disallowing a proper connection to be made.

Sep 7, 2008, 03:17 AM	#11
CDsDontBurn 127.0.0.1 Join Date: May 2003 Location: Southern California Posts: 22,458 Rep Power: 202 System Specs	oh. then yea, that would make a big difference then. __________________ Her First Day \| A year later