smicha wrote:Is this important to have a primary gpu as 0000 - in my personal machine with 4 gpus the main gpu is marked as 0003.
Old habits die hard and may have nothing to do with reality. My belief is that it doesn't matter; however, the reason why I'm so fetishly involved in installing my GPUs singularly is to get and keep the display GPU as "0000" and to have all of the others follow numerically for the slots in order that appear before my eyes - this helps greatly in trouble shooting. Of couse with water-cooled GPUs its a PITA.
Last edited by Tutor on Mon May 09, 2016 10:38 pm, edited 1 time in total.
Because I have 180+ GPU processers in 16 tweaked/multiOS systems - Character limit prevents detailed stats.
smicha wrote:And last observation from gpuz - if 1st gpu works at x16 it takes some speed (lanes?) form other gpus preventing them from being visible? May this be true/possible? Hence, auto settings in bios for pcie speed shall be changed manually to gen2?
This is just the max GPU performance; not the min. or current.
Because I have 180+ GPU processers in 16 tweaked/multiOS systems - Character limit prevents detailed stats.
smicha wrote:As for previous post - but is there any chance to see 0004 (for the second powered card that is insert in 2nd pcie slot)?
Yes, that's what I'm striving for seeing - the card in the second PCIe slot. My understanding of what the registry hack does is that is to condition/optimize IO space because it works even when the GPUs aren't even seen in Windows, which is broader that the predicate condition that Otoy states to use it - Otoy begins by saying, "Windows and the Nvidia driver see all available GPU’s, but OctaneRender™ does not." But it's worked for me even when Windows doesn't see the GPU, which is a predicate to the Nvidia driver even seeing it.
Have you finished with the hack and rebooted?
Because I have 180+ GPU processers in 16 tweaked/multiOS systems - Character limit prevents detailed stats.
smicha wrote:Same situation. I am doing now another clean install of nvidia to see if it changes anything.
My feelings are I have to unplug all power cables from gpus and a mobo for 1h, power it all again and see if 0004-0006 comes up.
Is this a good time to remove the motherboard's battery for at least 60 seconds ( and short + and - ) to reset bios? Just remember to re-enable "above 4G " and other self-made settings.
Ill take a break to prepare dinner and check back regularly.
P.S. I'm not using, nor do I plan to ever use, Windows 10.
Last edited by Tutor on Mon May 09, 2016 10:57 pm, edited 1 time in total.
Because I have 180+ GPU processers in 16 tweaked/multiOS systems - Character limit prevents detailed stats.
smicha wrote:Same situation. I am doing now another clean install of nvidia to see if it changes anything.
My feelings are I have to unplug all power cables from gpus and a mobo for 1h, power it all again and see if 0004-0006 comes up.
Is this a good time to remove the motherboard's battery for at least 60 seconds ( and short + and - ) to reset bios? Just remember to re-enable "above 4G " and other self-made settings.
This would force to drain the water and remove 3 gpus and leave max 4 - when clear cmos is done no way to boot to bios with 7 gpus on the mobo - 4g is disabled after clear cmos, which sucks when 7 gpus are on board.
I will power all 7 gpus in the morning and report it to you my friend. Thank you so much for your time. I need some sleep. Talk to you tomorrow.
smicha wrote:Same situation. I am doing now another clean install of nvidia to see if it changes anything.
My feelings are I have to unplug all power cables from gpus and a mobo for 1h, power it all again and see if 0004-0006 comes up.
Is this a good time to remove the motherboard's battery for at least 60 seconds ( and short + and - ) to reset bios? Just remember to re-enable "above 4G " and other self-made settings.
This would force to drain the water and remove 3 gpus and leave max 4 - when clear cmos is done no way to boot to bios with 7 gpus on the mobo - 4g is disabled after clear cmos, which sucks when 7 gpus are on board.
Just one of the many reasons that for the foreseeable future I'll be Supermicro Man - they boot into bios even when max IO, without "above 4G," is exhausted. Bios truly matters much.
smicha wrote:I will power all 7 gpus in the morning and report it to you my friend. Thank you so much for your time. I need some sleep. Talk to you tomorrow.
Or from my perspective, later tonight/very early morning.
Because I have 180+ GPU processers in 16 tweaked/multiOS systems - Character limit prevents detailed stats.
Smicha, does that board even need 4G Decoding for 7 GPU? How many PCI slots does it have.
Being that you are in Poland I remember typing to PolishGinger, who was debugging adding additional GPUs, to try each GPU one by one, to identify that they are even working independently of one another. Although, this gets messy with a loop, I know. But why wouldn't Windows even see 7, are the slots busted, shut off, is there something not plugged in somewhere (just hypothetical questions for argument, not suggesting they are).
Anyway, what I do, and what you could do, is if you have an old air cooled GPU, you could try testing slots with a single air cooled GPU before you would reassemble with a loop (ie test in all, or a sample, of slots not recognizing cards).
I have a now-crappy GTI 660Ti with stock fans, and this little card has helped me so much in troubleshooting. If you plan on going big with a rig maybe a Best Practice would be to use an old card to debug when possible.
Tutor, one mind to another - he installed everything and it worked before, shouldn't he just replay what he did last time, put a piece of Duct tape to block the video input on the 7th GPU, and not worry about the registry ins and outs? He already did it, he solved his present issue in the past. I spent time on the V3 crashing thing because I dreaded undoing the Amfeltec portion of the loop. But once I did and reverted to USB risers it all worked, as I knew it would, but yes it was a pain. Seems like here Smicha is in a similar situation.
Why go further down the wabbit-hole?
Win 10 Pro 64, Xeon E5-2687W v2 (8x 3.40GHz), G.Skill 64 GB DDR3-2400, ASRock X79 Extreme 11
Mobo: 1 Titan RTX, 1 Titan Xp
External: 6 Titan X Pascal, 2 GTX Titan X
Plugs: Enterprise
So we unplugged all cables and left the machine unplugged for 2 hours (not enough I think), run clean win10 install, one by one gpu powered by cables and nvidia driver install - only 4 of them are visible. What I just noticed in bios there are only 4 slots taken. And I changes manually pcie speed to gen 1 and gen2 - nothing. I am afraid the last solution will be to drain a loop and remove gpus from the mobo, reset bios, enable 4g (yes it is a must - without it the machine will not boot to bios with 7 gpus).
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