peach-os Posted April 6, 2010 Author Share Posted April 6, 2010 some of them should read their mainboard specs. a lot of mainboards reduce the bandwith of the 16x slot to 8x when using two gfx cards Link to comment Share on other sites More sharing options...
starobrno1 Posted April 6, 2010 Share Posted April 6, 2010 Yes you right I actually did check if it said anything about multiple cards (also I don´t have gfx). Well maby mobos in general defaults to 8 when you have two cards and run osx who knows. The manual for my GA EP45-DS3 says nothing about anything at all regarding this just which slot gets to be the first if you go for peg or peg2. Peg in my case is the 16 and I have two of these. I´m guessing what it says in the SP is pretty much just "comsetics" in this case. When I get the time I will take one card out to test though. Link to comment Share on other sites More sharing options...
Dradis Posted April 7, 2010 Share Posted April 7, 2010 Will this work with one PCIe x16 card and one PCI card, or do they both have to be PCIe? Both are nvidia 8400s. Link to comment Share on other sites More sharing options...
peach-os Posted April 8, 2010 Author Share Posted April 8, 2010 if you have the both cards, why don´t you just try? only thing you could loose is time Link to comment Share on other sites More sharing options...
chukieboy Posted April 28, 2010 Share Posted April 28, 2010 hey guys, quick question... I'm running the ep45-ud3p with a BFG 7900GT 512MB and have had nothing but smooth operating for a few months now. It runs dual DVI displays without a hitch. I'd really like to add a third monitor. I had a brand new Sparkle 8400GS 256MB at the office so I brought it home and dropped it in to the PEG2 spot... It only registers with these properties: Display: Type: GPU Bus: PCIe PCIe Lane Width: x8 Vendor: NVIDIA (0x10de) Device ID: 0x0291 Revision ID: 0x00a1 Displays: Display Connector: The attached display doesn't receive a signal at all. However when I switch it to PEG1 it drives both of my displays (one with DVI the other with VGA) just as if it was the 7900GT driving them. Actually so much like the 7900GT that System Profiler actually shows it as: NVIDIA Graphics Engine: Chipset Model: NVIDIA Graphics Engine Type: GPU Bus: PCIe Slot: PCI PCIe Lane Width: x8 VRAM (Total): 512 MB Vendor: NVIDIA (0x10de) Device ID: 0x06e4 Revision ID: 0x00a1 ROM Revision: NVIDIA Graphics Engine DSDT Displays: 2217: Resolution: 1680 x 1050 @ 60 Hz Pixel Depth: 32-Bit Color (ARGB8888) Main Display: Yes Mirror: Off Online: Yes Rotation: Supported 917W: Resolution: 1440 x 900 @ 60 Hz Pixel Depth: 32-Bit Color (ARGB8888) Mirror: Off Online: Yes Rotation: Supported Which I found a little odd... although I did do a lot of aimless tinkering to get the card working 100% when i first finished this build back in december/january so maybe its something I did. Anyhow I have played around with setting the BIOS to PEG2, it causes panic during the apple graphic / spinning rectangles screen. I know both of these cards can work, I just don't know how to get there. I did my install following Stell's Lifehacker guide to the letter and everything works REALLY well. Shutdown, Sleep, ethernet, audio, everything is great, just need to add this third display and its golden. Thank you guys in advance for your help, it is much much appreciated. And please let me know what further info to provide as I'm sure there is a lot I don't know. Link to comment Share on other sites More sharing options...
peach-os Posted April 28, 2010 Author Share Posted April 28, 2010 take the first card out of the machine and first get the 8400 workin in the second slot on it´s own. get the correct NVCAP values and compare them with plist edit pro in your plist file. Link to comment Share on other sites More sharing options...
chukieboy Posted April 28, 2010 Share Posted April 28, 2010 take the first card out of the machine and first get the 8400 workin in the second slot on it´s own. get the correct NVCAP values and compare them with plist edit pro in your plist file. Thanks for your help peach. Forgive my ignorance but I'm not sure which plist i need to be looking at. I downloaded plist edit pro, I've got the card running in the PEG2 slot but this how it is recognized: Display: Type: GPU Bus: PCIe PCIe Lane Width: x8 VRAM (Total): 32 MB Vendor: NVIDIA (0x10de) Device ID: 0x06e4 Revision ID: 0x00a1 Displays: Display: Resolution: 1680 x 1050 Pixel Depth: 32-Bit Color (ARGB8888) Main Display: Yes Mirror: Off Online: Yes Should I be looking at my com.apple.boot.plist? Sorry I'm just not very experienced with this stuff. Link to comment Share on other sites More sharing options...
peach-os Posted April 28, 2010 Author Share Posted April 28, 2010 before doing experiments like this, you should get more basic knowledge look at aquamac´s guide here http://www.insanelymac.com/forum/index.php?showtopic=101121 Link to comment Share on other sites More sharing options...
chukieboy Posted April 28, 2010 Share Posted April 28, 2010 I read through the thread, lots of information! Sadly I think I may be in over my head Link to comment Share on other sites More sharing options...
Music_remedy Posted April 29, 2010 Share Posted April 29, 2010 I'm intrested in runnig a triple monitor setup, but there's a slight problem. My A8N-SLI can't boot VGA from the second slot. It runs only if it's put in the first... How do I get the second slot pci id? Link to comment Share on other sites More sharing options...
ilzzy Posted May 13, 2010 Share Posted May 13, 2010 Hello.. cheers for putting info together on this topic i'd love to get multiple Graphics cards running on my setup.. sorry to be a total beginner but I'm really lost with this guide.. can anyone help me out and explain it in more detail? I'm running a ED45-UD3P.. I have booted each card individually and have the following information: 9800 GTX+ 512MB in slot 1-PEG DevicePath = PciRoot(0x1)/Pci(0x1,0x0)/Pci(0x0,0x0) 192-168-1-2:~ ilz$ 7300GT 256MB (out of a mac pro) in Slot 2 PEG 2 192-168-1-4:~ ilz$ gfxutil -f display DevicePath = PciRoot(0x1)/Pci(0x6,0x0)/Pci(0x0,0x0) 192-168-1-4:~ ilz$ Thanks ilzzy Link to comment Share on other sites More sharing options...
peach-os Posted May 13, 2010 Author Share Posted May 13, 2010 now get the corresponding plist files from efistudio or aquamacs forum (link is in post 183) and follow his guide. in the plist files you will have to set the correct pci settings that you already have. next > merge the two plists > convert it to a hex file > add it to com.apple.boot.plist Link to comment Share on other sites More sharing options...
RedEyeZ88 Posted August 15, 2010 Share Posted August 15, 2010 Hey, I also have the GA45-UD3P. I have done these steps exactly, but still no luck. I have dual 9500gt, both show up in system profiler. However, Only one works at a time, even tho both show up. Any idea? My bios is set at PEG 2. Please help. Link to comment Share on other sites More sharing options...
RedEyeZ88 Posted August 15, 2010 Share Posted August 15, 2010 Please help me out guys. Im really desperate to get this working. Im only able to get my machine to recognize my cards as 9500gt AFTER i install a [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] so I get an /Extra folder. Please help. I want ot know If and what im supposed to do with my dsdt.aml patch. I might just go buy the UD5 since theres a script for the install process with that board. But if I can get my mobo working, that would be alot better. Please guys! Link to comment Share on other sites More sharing options...
starobrno1 Posted August 16, 2010 Share Posted August 16, 2010 Has anybody got this working with newer HW like mobos for the i7 930 cpu? With my old gear I could allways use a NVinject.kext I modified to make my two good old no name 7300 gs 512 mb Pcie videocards. Link to comment Share on other sites More sharing options...
peach-os Posted August 16, 2010 Author Share Posted August 16, 2010 unfortunately never had a chance to try it with an i7 board. my new dual cpu workstation has only a few pcie slots - no place for a second video card. therefore I bought two 27" inch monitors instead of three 22" - what is still a loss of space on the screens, but also very nice Link to comment Share on other sites More sharing options...
starobrno1 Posted August 16, 2010 Share Posted August 16, 2010 Ok I see, thanks for the reply Link to comment Share on other sites More sharing options...
ricren Posted August 16, 2010 Share Posted August 16, 2010 I have an I7 930 on a Gigabyte X58 UD3R working with a Palit Nvidia 250 and a MSI 9500GT. Not a problem on the software side, but I had to cut some plastic on the 250 to be able to fit the two cards on the PCI x16 slots. Perhaps the fan case of the Palit in out of spec. R. Link to comment Share on other sites More sharing options...
starobrno1 Posted August 17, 2010 Share Posted August 17, 2010 Ok thanks, can it be two of the exact same videocards does´nt work on i7 mobos? Link to comment Share on other sites More sharing options...
ricren Posted August 17, 2010 Share Posted August 17, 2010 Ok thanks, can it be two of the exact same videocards does´nt work on i7 mobos? Two identical cards would be easier, I think. Befor this setup, I had two 7300 GT on the same machine working ok. Link to comment Share on other sites More sharing options...
peach-os Posted August 17, 2010 Author Share Posted August 17, 2010 Two identical cards would be easier, I think. Befor this setup, I had two 7300 GT on the same machine working ok. I don´t agree........ with the identical card it could be trickier to install. twice I had to use different plists to make it work Link to comment Share on other sites More sharing options...
starobrno1 Posted August 17, 2010 Share Posted August 17, 2010 My experience is only with two of the same videocards and using a NVinject I modified the NV cap on to suite my specific cards. It worked very good on my old GA EP45-DS3 mobo with the Q6600 cpu but with the new Asus P6T SE and the 930 cpu I´m stuck can only use one card. I´m pretty sure I get somekind of missmatch regarding which of the ports (VGA or DVI) loads as primary cause the displays goes black. But it looks like the os actually is "live" and fired up completely. The problem is in my opinion is that it´s hard to find info about using two video cards with these new i7 mobos. Some guides say it works if you have this or that video card and it´s hard to understand if they added them to the DSDT.aml you download for that specific guide, and if it is that in itself might make it problematic. The threads can be some 50 + pages and just finding the one you wanna try out take time so sooner or later you just start go through them real quick or you get crazy and bleeding eyes hehe. Anyway I don´t mean to be ungreatfull to all the good guys making all this happening for us noobs cause with that DSDT.aml stuff I´m totally lost and just don´t have the time to dig in to it to the level where I can make my own. With the guide I´m on now with the latest (probably best) DSDT.aml (by ifabio) for the Asus P6T SE and the 930 cpu as soon as I replace with a later (probably intended to be better) fakesmc.kext (modified by some Smith guy I think) I loose onboard sound hehe so it´s confusing for sure. Oh well I´ll might settle with one card but this is going to be my broadcasting computer for my justin.tv channel so it would have been great with at least three displays. It´s really cool to broadcast live I can even broadcast from Logic (plugins and all) live just plug in the guitar and play away right out to the internet. And if I want to even play acoustic setting up Logic for four mics, one for the acoustic git, one for vox and two double sided (8 figured) to pick up the room. Sound is the same in the viewers end as I have myself, really cool time moves on for sure. Imagine what live web tv could do for rockbands/artists giving them a chance to broadcast their gigs live on the internet with good sound and video. Link to comment Share on other sites More sharing options...
ricren Posted August 17, 2010 Share Posted August 17, 2010 In my experience, the most difficult part with Nvidia cards is to get the NVcap right. Once you get it, the rest is easy. For example, my Asus 7300Gt cards did not work with all the Nvcaps that were posted at that time , I had to keep modifying it 'till I got the right one. The same happened recently with my new Palit 250. It will not work with the common nvcap for other 250 cards, not even with the nvcap of another Palit 250 (Palit makes 3 different 250 cards ) I had to manage to arrive to the one that fits the card, with a brute force approach,trying different numbers. Once you get it, everything works in any combination. R. Link to comment Share on other sites More sharing options...
starobrno1 Posted August 17, 2010 Share Posted August 17, 2010 Ok thanks I think you´re right I´ll just have to keep on like you did. Strange though that the same kext work with the same two videocards in my old rig GA EP45-DS3. Link to comment Share on other sites More sharing options...
peach-os Posted August 17, 2010 Author Share Posted August 17, 2010 ok.....too long ago - thanks ricren.....now you reminded me what an other solution was: editing the nvcap also if you use strings Link to comment Share on other sites More sharing options...
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