From: Kathy on

Thank you very much Paul. Great information. Kathy

"Paul" <nospam(a)> wrote in message
> 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:
>> 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.
> You want to read the customer reviews first, to see if there are issues.
> Yes, there are issues.
> 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.
> On the back of the card, you can see, more or less, two GPUs and
> their associated memory chips in the layout.
> 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.
> 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).
> Good luck,
> Paul