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Optiplex 780 Memory Parity Error with PCI expansion card
Can anyone tell me why I might be getting a Memory Parity Error on boot after installing a PCI expansion card in the open slot on my Optiplex 780 SFF? No video card in the PCIe slot and the system works fine until I put in the 32 bit firewire card. Then it starts to load and dumps to:
*** Hardware Malfunction
Call your hardware vendor for support
NMI: Parity Check/Memory Parity Error
*** The system has halted ***
I got this with two separate cards, one used and working when pulled, one new out of the box, so it's not a bad part. No other upgrade or changes to system that's been operating for years without a hiccup. Running Windows 7 Pro SP1. Any advice or help would be appreciated.
RoHe
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September 5th, 2017 13:00
Are you putting the firewire card in the x16 video card slot?
That's probably not going to work because the system probably can only use a video card there. RAM on the firewire card is probably different than BIOS would expect to find if a video card is installed.
GomerIK
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September 7th, 2017 00:00
Thanks for replying. No, I'm not putting the card in the x16 slot. I'm putting it in the standard PCI slot--SFF has an x16 slot which is exclusively for a video card and a standard PCI slot. Both expansion slots are open. That's why the error doesn't make any sense. I can understand why the PCIe slot wouldn't work, but the PCI 32 slot should be fully functional if I'm reading the service guide correctly.
RoHe
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September 7th, 2017 12:00
What version(s) of PCI do the cards support/require? The PC's bus is PCI 2.3 (133 MB/s)
You can also try putting the card in and resetting BIOS:
GomerIK
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September 8th, 2017 14:00
Thanks. I'll double check and make sure I've got the right ver card although I'm pretty sure it was 2.3. I'll also try resetting the BIOS. That sounds like it might be the ticket.