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From: Kathy on 28 May 2010 12:30 Thank you very much Paul. Great information. Kathy "Paul" <nospam(a)needed.com> wrote in message news:htjtfl$2e8$1(a)speranza.aioe.org... > Kathy wrote: >> I was wondering if someone can help me, I have a Presario SR5050nx with >> onboard video, >> >> Intel GMA 950 (82945g express chipset) with vga port in the back panel >> and the latest drivers, >> >> and the motherboard has 2 pci and 1 pci express x16 and Vista home. >> >> I decided to install an Nvidia PCI FX5200 video card (vga and dvi) and I >> would like to have 3 >> >> monitors (3 monitors makes things easier for the type of work I do) but >> once I install the pci card, >> >> it says "Incompatible display adapter has been disabled" and I can only >> get to use either the >> >> onboard video or go to bios and set it to use the pci as primary and use >> the pci card (w/2 monitors). >> >> Intel says that it can be done with a pci (no pci express), I don't know >> what am I missing. See: >> >> http://www.intel.com/support/graphics/intel915g/sb/cs-011796.htm >> >> Has anyone got the onboard video and pci video card to work? >> >> Thank you for your help. >> >> kathy > > Check the BIOS to see if there is an "INT 19 capture" or "INT 0x13 > capture" > item and enable it. > > Each video card has a BIOS chip on it, and there is code sitting in there. > You should enter the BIOS and see if there is any setting which is > preventing that add-on BIOS from being loaded. And the necessary setting, > might not be in the section where you find the Primary display adapter > setting. It'll be located elsewhere. Search all the BIOS pages until you > find it. > > ******* > > As for your choice of video cards, I own a PCI FX5200 video card. I bought > it originally, to use while I was flash upgrading the BIOS chip on an > AGP video card. > > I've tested that card, in my last two motherboard upgrades, and it > upsets PCI bus operation too much, and gives too much stuttering for > practical work. If you'd asked about this card, before purchasing > it, I would have advised against it, based on the test results I've > seen here. > > You can purchase PCI Express video cards with quad outputs. Basically, > the card consists of two GPU chips, running two outputs each, all > connected to the one PCI Express x16 slot. PNY used to make cards > like this, but I only see Jaton brand now. The modern PNY ones > are more likely to be useful with DVI or DisplayPort monitors. > You could then disable the onboard display, and run all monitors > from a single video card. > > http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=2010380048&Subcategory=48&srchInDesc=quad > > You want to read the customer reviews first, to see if there are issues. > Yes, there are issues. > > http://www.newegg.com/Product/ProductReview.aspx?Item=N82E16814139055 > > http://www.jaton.com/VGA/graphics_card_detail.php?pid=18 > > To fit all the connectors on one faceplate, they use adapter cables. > The faceplate end is something like a DMS-59 connector (something with > more pins than a DVI), while the two monitor ends would be DVI cables. > > http://images17.newegg.com/is/image/newegg/14-139-055-Z05?$S640W$ > > On the back of the card, you can see, more or less, two GPUs and > their associated memory chips in the layout. > > http://images17.newegg.com/is/image/newegg/14-139-055-Z04?$S640W$ > > In terms of the wiring, it should work like this. A PCI Express > switch chip, splits the interface so that two GPUs can be used. > It effectively makes two slots from one. Sometimes that confuses > a less-sophisticated motherboard BIOS. Which is why one reviewer > mentioned getting a BIOS update for the motherboard, if > only two out of the four displays worked. If the motherboard > BIOS is confused, it might only enable and use one of the two > GPU chips. > > to two DVI monitors <--- HD3450 HD3450 ---> to two DVI monitors > \ / > \ / > PCI Express > Switch chip > | > PCI Express x16 > > That should give you better performance. Even if the x16 interface > isn't really fully wired. I suspect it may be something like > wired x8, and split into two x4 interfaces, just based on the > surface mount caps I see near the slot connector. That is still > plenty of bandwidth, compared to the crappy PCI bus. (x4 = 1GB/sec > versus PCI 133MB/sec) > > The PNY catalog is here, and there is only a short section at the > end claiming to drive 4 monitors. And the cards are too expensive. > The VCQ450NVS-X16-DVI-PB for example, might be a prospective solution, > except it'll be twice the price of the Jaton card. > > http://www3.pny.com/QuadroPDFs/QuadroLineCard.pdf > > If the whiny cooling fan on the card bothers you, there > is a potential solution for that. Disconnect the tiny fan cable > on the video card. Place an 80mm or 120mm Vantec Stealth computer > case cooling fan, right next to the Jaton heatsink. That will give > the airflow needed to keep it cool, without the high pitched noise > of the 40mm fan on the video card itself. Whether this is feasable > generally, depends on whether the heatsink is "open". Many heatsinks > are closed in such a way, that not enough cooling air would make > contact. But the Jaton heatsink looks open enough, to be cooled > well using an adjacent computer case fan. I suspend the fans > I use for this purpose, by bolting a "paint stick" to a PCI slot > cover screw hole. Then use nylon ties, to hold the fan to the > paint stick. I've also made a more classy solution, using aluminum > angle iron, which costs about $10 for the aluminum at Home Depot. > > You can check the temperature of video cards, with a program called > GPUZ (amongst others). First, you'd run the Jaton card with its > own 40mm fan. Wait for temperatures to stabilize and take a reading. > Then, disconnect the 40mm fan, position the 80mm or larger fan right > next to the video card. Run the computer again and compare temperature > readings. As long as the temperature hasn't shot up astronomically, > that may be enough. This program may think there are two video cards > connected, so there could be two different temperature readings to > check (one per GPU). > > http://www.techpowerup.com/downloads/SysInfo/GPU-Z/ > > Good luck, > Paul
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