[99Scooby]

Hello everyone,
I'm at my wit's end here today haha. I've built computer since the mid 90's, so whatever I'm doing wrong is either something mind-numbingly simple, or some "gotcha" that I am currently unaware of.
Here's the story. I have 3 motherboards sitting here in my office. 2 AMD AM3 boards (Gigabyte GA-880GA-UD3H, ASUS M4A88TD-M/USB3), and 1 Intel board (SuperMicro X9SCL-F). Processors are an AMD Phenom II Black (X4 955), and an Intel Core i3. I have 5 different memory configurations here: 12GB (4GBx3) Crucial DDR3 1333, 8GB (4GBx2) Crucial Ballistix DDR3 1333, 2GB (2GBx1) Samsung DDR3 1333, 4GB (2GBx2) Team Elite DDR3 1066, and 3GB (1GBx3) Hynnix DDR3 1333.
The problem? I can only seem to get one compatible configuration out of all of the above. When I try ANY of the memory configurations above in either of the AMD setups, I get nothing. The fans spin, but the system never POSTS. If I try it in the SuperMicro Intel system, the Ballistix causes a "no memory found" beep code. The 12GB, 4GB, and 2GB kits do the same thing they do in the AMD setups. The 3GB (1GBx3) actually works in the Intel setup.
I have confirmed the memory is not at fault, as I took the known working memory from a Dell Vostro 230 (1GB x 1) and tried it. Same result. I have installed it in every configuration I can think of, installed it as a single stick, cleared the BIOS with the jumper, put in external video cards, etc.
I am at a complete loss, and I simply cannot believe that two motherboards, two processors, and 4 memory kits are faulty.

[Theocnoob]

I have no idea what you're talking about.

Can you write that differently?

[99Scooby]

Basically my Gigabyte GA-880GA-UD3H with an AMD Phenom II 955 black edition will not post no matter what kind of DDR3 i use even the Corsair XMS 1333 that says it will work in the manual. If i remove ram and try to boot i get the normal memory error beeps.

[Theocnoob]

Gotcha.

Given that the board will not post with any RAM, I think you likely have an issue with the board. CPUs usually are fine as long as they have not been shocked or damaged, ie bent pins.

Did this CPU and/or mobo work for you before? If so, has anything happened in between then and now that would not be conducive to functional components? Lightning strike? Drops? etc?

[Knufire]

If it does post with any RAM in either board, it might be the CPU.

[thideras]

Sounds simple, but do you have both the 24 pin and 8 pin ATX connectors securely plugged in? What else do the systems share in common (power supply, physical location, case, etc)?

[99Scooby]

I've also tried the same components in my ASUS M4A88TD-M/USB3 with the same results. No lightning strikes or anything as either system has never booted into the bios, power supply is outputting the correct voltages as I have verified them with a meter. yes the 8 pin connector is plugged into its correct location as well as the ATX plug. I have even tried a different CPU being a Phenom II x4 945

[thideras]

What about physical location? Are they in the same case (etc)?

[99Scooby]

Yes they are in the same location, be it in the case or on the top of my desk.

[bypolar1]

Try just 1 stick of memory,start with dimm 1 then move to 2,3,4 and see what you come up with.Gigabyte says to get a 1866 mem speed use Dimm_3 and Dimm_4 I know you are just trieing to get the system to post but these 2 slots seem to make a difference in certain situations.

We need to know powersupply model,and what video card you might be using. and a Picture of you test setup may help too.

[99Scooby]

The power supply is a BFG 650w, on board video. I refuse to buy more ram after trying corsair and crucial 1333, 1066, 1060. And as far as a test setup, I do IT for a living, I'm really not seeing how a picture of what i have is going solve my issues.