Hello all. Hoping you can help me with a rather serious problem here.
I built the follow machine on Friday:
AMD Phenom II X4 Quad Core 955 Black Edition 125W
Asus ATI Radeon EAH5850 DirectCU 1024MB GDDR5 PCI-Express Graphics Card
Asus ATI Radeon EAH5850 DirectCU 1024MB GDDR5 PCI-Express Graphics Card
Crucial memory 4GB (2 x 2GB) DDR3 PC3-12800 Ballistix 1600 MHz RAM 8-8-8-24 Unbuffered NON-ECC 1.65V 256 Meg x 64
CROSSHAIR IV FORMULA - Asus Crosshair IV Formula, AMD 890FX, SAM3, PCI-E 2.0, DDR3 1600/1800/1866, SATA 6Gb/s RAID, ATX
850W Corsair 850HX PSU, ATX, EPS12V, Modular, UK Version
500GB Samsung HD502HJ Spinpoint F3, SATA 3Gb/s, 7200rpm, 16MB Cache, 8.9 ms, NCQ, OEM
Sony AD-7240S-0B 24x DVD±R, 12xDVD±DL, DVD+RW x8/-RWx6 ,12xRAM SATA, Black, OEM
Silverstone Fortress FT01B-W Tower Case Black Aluminum with Window w/o PSU
THE PROBLEM
- The build went fine and I took all the usual precautions (wrist strap etc).
- First boot seemed ok, but its interesting to note that my case doesn't seem to have a beeper.
- I updated the BIOS to the latest version.
- I attempted to install Windows 7 64-bit.
- Upon doing so, the machine froze at the "loading windows" screen.
ATTEMPTED SOLUTIONS
After some research, I decided to reseat the memory modules. This did not work. So I ran Memtest+ and to my horror millions of red errors appeared on my screen. I then proceeded to test each module as such with the following result:
- NO ERRORS: I ran the system with 1x 2GB in Slot A1
- NO ERRORS: I ran the system with 1x 2GB in Slot A2
- ERROR: I ran the system with 1x 2GB in Slot B1
- ERROR: I ran the system with 1x 2GB in Slot B2
The result for each module was the same.
- NO ERRORS: I ran the system with 2x 2GB in Slot A1 + A2
- ERRORS: I ran the system with 2x 2GB in Slot B1 + B2
I'm going to test the memory later on tonight in a friend's machine but based on those results I feel its more likely that the DIMM SLOT is at fault rather than the memory modules. Note that I can actually install Windows when the memory is in Slot A1 and A2 but this is obviously not optimal as they are not operating in Dual Channel mode.
After some preliminary research, I saw a couple of other potential causes:
- One website suggested that there was an incompatibility with Corsair PSU's.
- One website suggested that the CPU might be faulty - as the memory controller is on the CPU.
- One website suggested that the memory might not be compatible.
Given that the memory appears to be working ok in the first two slots, I'm inclined to feel that the DIMM SLOTS are faulty rather than any of the above arguements.
Reflecting on the build, there might be a few tell-tale signs of mistreatment.
- The motherboard manual was bent and the equipment was a little bit messy in the box (but not so much as to assume 2nd hand).
- The chassis fan header nearest the B1 and B2 memory modules had two of the four pins bent (I had to bend them back before I could connect the fan).
I just wonder whether the board has had a bit of a mishandling.
ACTION PLAN
I plan on removing all non-essential hardware from the machine such as the HDD, 2nd GPU, Wifi Card and Optical Drive - then retest the memory in B1 and B2 slots. I don't hold much hope of this succeeding.
Any help you can give would be greatly appreciated! As you can imagine, it is a nightmare scenario after you have been waiting so long for a new PC! Am I best off just sending the Motherboard back to Scan tommorow morning and asking for a replacement?