a. swapped out my mother board for a nos unit I obtained.

b. This has a 975x and I also upgraded the memory to 3 sticks of critical ballist 4gb 1600 DDR3 

1: BIOS shows the memory capped at 1333mhz and only is allowing access to less than 9gb of ram.
2. During boot I get the following two problems:
A:PNE e76 Bad missing multicase discovery address
B: PNE M0F Exiting Broadcast PNX ROM
Then it continues to boot.
I have tried clearing cmos by jumper to no effect. Any assistance would be appreciated.
The board is a MS-7591 VER: 1

a. What does "nos" mean?

b. As manual shows, if only 3 DIMMs, fill one whole Tri-Channel Memory-Bank with set of three IDENTICAL DIMMs which is slots 1, 3, 5.

1. First, you should get BIOS and then Windows to show 12gb at 1333mhz. To get 1600mhz (much later) you will likely have to set ram config parameters manually because the XMP profile stored in those DIMMs might not be correct for this MB.

2. No, it should not be doing that. Try disabling PXE-Boot (network boot) and be sure main C: SSD drive is the only bootable drive connected and first on list.

Run self-bootable (outside of Windows) 32bit Dell/Alienware Hardware Diagnostics. Will likely have to download it and create a bootable DVD or flash-drive of it. It's like ePSA on newer machines, but better since it also checks MIO-Board, Liquid-Cooler, led-lights, etc.

NOS sorry I meant it is nip or new in package. I will look into the other

information.

Randy

Got the memory working still working on the PNX problem.

Thank You again.

Randy

About memory ... good work.

Are you sure the error mentions PNX ? Take a phone pic if you want to.

Was the boot-drive blank and you clean-installed Windows on it, or ... does if have old-stuff on it? 

Oh, ok.

Well, I doubt there are any truly "new" or New In Package Aurora-R1 (Intel x58-Chipset) Motherboards 7 years later ... but hopefully it's at least a "working pull" or serviceable used board. 

Sorry PXE connection error.

Randy

OK, got it. I might have swapped the SATA cables when installing them back

on the new motherboard. Now if I put a 4 port external and 4 port internal

USB 3.0 pci card in will this also effect the boot on the SSD?

Randy

That's what i thought. Actually, that is better because it's explainable. That just means it's trying to boot from a server (over the ethernet network) because a local C: drive with a bootable Operating System is not found.

What BIOS options have you tried to disable PXE function?

- Try disabling PXE-Boot (network boot)

- be sure main C: drive is the only bootable drive connected and first on "boot priority list".

On most machines, if you successfully disable PXE boot, if local C: is bad in some way, it should just say "bad disk" and stop there. 

If PXE can't be disabled (as is sometimes but rarely the case), you can also just clean-install Windows fresh on C: and when the machine goes to boot, it will just boot properly, and never even try by PXE.

No.

However, if you insert a bootable USB drive or flash-drive it is conceivable that it could have a higher boot priority than the main C: drive and therefore affect the boot process. Normally, you can set and control this from the BIOS.

Additionally, if you get a card like that (with that many USB ports on it) ... you might want to make sure it's a PCIe 4-lane card so it can handle all that throughput at once.

Yes it is a 4 lane.