<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">Ever since I moved down to San LUIS OBISPO, I've had way more weird crashes and hardware failures than I've ever had before. Can anyone suggest what might be the cause? Is our power circuitry messed up in some way?<br class=""><br class="">* LED bulbs in one room dim and brighten when starting and/or stopping (not sure whether it's 'and' or 'or') the washing machine, especially if they're on a dimmer at <100%.<div class=""><br class="">* LED bulbs dim randomly even when the washing machine isn't running, if dimmer is set low.<br class=""><br class=""></div><div class="">* Random crashes every few days on my desktop when playing a certain game, both on Windows and Linux (Wine+DXVK)<br class=""> -- Note that that game (Final Fantasy 14) is the only one I regularly play, and it's generally only in the evening, which is when the family runs laundry.</div><div class=""> -- I've run other graphically intense games with no crashes.<br class=""><br class=""></div><div class="">* ECC RAM, and MemTest86+ says it passes.</div><div class=""><br class=""></div><div class="">* GPU (RX 5700) seemed to go bad (started getting crashes even without games), sent for RMA... replacement still crashes in games.<br class=""><br class=""></div><div class="">* Got a second, similar GPU (Radeon Pro W5700)... still crashes.<br class=""><br class=""></div><div class="">* Replaced my power supply... still crashes.<br class=""><br class=""></div><div class="">* Secondhand Supermicro server board suddenly failed (spark sound and a smell of magic smoke) one time when I nudged the PSU cables.</div><div class=""> -- When plugged into desktop PSU, a red LED blinks instead of the green IPMI heartbeat LED; from what I can tell, that means power fail.<br class=""> -- Tried it with an old PicoPSU instead of the desktop power supply, and the board started smoking at the ATX power connector.<br class=""> -- I guess a real PSU has short detection, but the PicoPSU does not! Could be exciting to plug it in outside...</div><div class=""><br class="">* New CPU and motherboard, new RAM: still crashes.</div><div class=""><br class="">* New CPU and motherboard, old RAM: still crashes.</div><div class=""> -- The crash's error record mentions uncorrectable errors in the L1 cache.</div><div class=""><br class=""></div><div class="">* I remembered that this new CPU was banged around in shipping, so I RMA'd it. Replacement hasn't had enough soak time yet to see if it still crashes.<br class=""><br class=""></div><div class="">* Laptop (NVIDIA GPU) crashed with a black screen one time the very instant the washing machine stopped to change cycles. Same laptop has been stable at my parents' place.</div><div class=""><br class="">At this point, I bought a UPS (SMC1500C), on the suspicion that maybe the wall power itself is bad.</div><div class=""><br class="">* Desktop LCD randomly died (software backlight control works, but no image, not even of OSD).</div><div class=""> -- I realized the "green mode" was enabled on the UPS (bypasses AVR components when the input voltage is okay), so I disabled that option.</div><div class=""><br class=""></div><div class="">So, how likely is it that the real problem is bad wall power? My dad is the landlord, and he briefly tried to check out what was up with the dimming, but couldn't track it down.</div><div class=""><br class=""></div><div class="">The small UPS running our cable modem and router shows the input voltage randomly drifting between 121 and 125 volts.</div><div class=""><br class=""></div><div class=""><img apple-inline="yes" id="E6BE8A11-86A8-4F8A-80CF-274C7090B4F8" src="cid:408E0D36-8694-402C-B69B-58E97625F02C" class=""></div></body></html>