Greetings, gentlemen. I hope you all are in good health. The reason I have created this thread is as an appeal for help - I have recently attempted to build a new system (after being out of the loop for ~5 years) which had been going fairly smoothly, until I tried to install a copy of XP (which is old, SP1 or possibly before - but it's the only legit copy I own).
The HD is freshly formatted, and completely blank, but whenever setup begins, I run into a 0x00000050 error. I've read that this can be due to RAM failure, but I've run Memtest x86 and found no problems, though my understanding on the program is rudimentary at best.
I should mention that I've attempted to run Chkdsk /f and it locks up around 50%.
One thing about the seagate 7200.12...have you checked that you have the current firmware for the drive?
I have a 5400rpm .12 drive, and it was having issues with loud clicks that largely resolved after I applied a firmware update. I had issues using this as my boot drive because it took a while to spin up enough for the system to recognize it from a cold boot. I had to start it up with a warm boot for the system to recognize it.
Also, according to gigabyte's website http://www.gigabyte.com/products/product-page.aspx?pid=... , I don't see that the motherboard specifically supports your ram speed (ddr3 1600). Also, note 2 at the bottom of the page says that 'most hardware vendors have discontinued support for <blah blah>, xp1/xp2. XP3 might work for you?
Try to see what happens if you try running your ram as if it were ddr3 1333?