My new system consists of an Asus P8Z77-V, i5-3570K, and 2x4Gb sticks of the highly regarded Samsung 1.35V memory. I got the board and CPU first, so I installed some old Corsair XMS3 (4x2Gb 1600MHz cas8 1.65V) sticks in at the initial build up. Everything was working dandily, and the new Samsung RAM sticks finally came in. I thought I had a faulty Samsung stick because it wouldn't boot in dual channel mode but was fine in single channel, so I sent the apparently faulty stick back and Newegg promptly sent a new one. That un' got installed and lo and behold everything booted fine and even overclocked well to 4.2 Ghz and 1866MHz cas9 on the RAM. As time went on, the system gradually became less stable, refusing to POST (all was fine once booted) and only accepting lower and lower overclocks on the RAM side of things.
It all ran fine for a while at stock 1600MHz and loose timings. But now, no matter what I do even including underclocking the RAM, it won't POST at all in any dual channel configuration (tested all possible slot combinations), and it's even rather finicky with just a single stick in the A2 (primary) slot. I threw in the old Corsair sticks I had an those wouldn't boot either in any dual channel configuration. All of this leads me to believe the motherboard is the culprit, but I'm not too savvy on these things. Do you fine folks think my hunch is correct? Any other diagnostic tests I could run? Unfortunately, I don't have another system that I could plug the Samsung memory into to test it out. The Samsung sticks are not VQL list per Asus, but they are generally well regarded and seemed to work fine for a few weeks.
Thanks for any suggestions.
i5-3570K (using HD4000 iGPU)
CM 212+ cooler / Arctic Silver
Asus P8Z77-V
Samsung 1.35V 1600 cas10 / Corsair 1.65V XMS3 1600 cas 8
Crucial m4 64GB Boot drive
WD EZRX 3TB media drive
SeaSonic x460 fanless PS
Fractal Designs Arc Midi case
It all ran fine for a while at stock 1600MHz and loose timings. But now, no matter what I do even including underclocking the RAM, it won't POST at all in any dual channel configuration (tested all possible slot combinations), and it's even rather finicky with just a single stick in the A2 (primary) slot. I threw in the old Corsair sticks I had an those wouldn't boot either in any dual channel configuration. All of this leads me to believe the motherboard is the culprit, but I'm not too savvy on these things. Do you fine folks think my hunch is correct? Any other diagnostic tests I could run? Unfortunately, I don't have another system that I could plug the Samsung memory into to test it out. The Samsung sticks are not VQL list per Asus, but they are generally well regarded and seemed to work fine for a few weeks.
Thanks for any suggestions.
i5-3570K (using HD4000 iGPU)
CM 212+ cooler / Arctic Silver
Asus P8Z77-V
Samsung 1.35V 1600 cas10 / Corsair 1.65V XMS3 1600 cas 8
Crucial m4 64GB Boot drive
WD EZRX 3TB media drive
SeaSonic x460 fanless PS
Fractal Designs Arc Midi case
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