Ingo
09-04-01, 07:03 PM
I open up the door to my office this morning and the first thing that greats me is this horrible cacaphony of noises emanating from my rig! Oh, oh...:eek:...So I touch my mouse and the screen springs to life. I immediately check the MBM tray for temps and see that my cpu temp reads 48ºC, about 3ºC higher than usual (computer is running folding@home 24/7 -- Athlon 1.33 @ 1.655GHz @ 2.18v). I immediately shutdown the computer and unplug the PS and the waterpump. Something was definitely amiss. It sounded like the pump was churning gravel or the like:( .
I siphon out the water (getting a mouthful of distilled water and watter wetter in the process). After thoroughly rinsing my mouth out I proceeded to remove my waterproof junction box to ascertain the situation. There was no debris save for some plastic bits from the directional valve mounting. Also, the directional valve housing was cracked, as was one of the two tabs integrated into the sealed induction case. To give you an idea, this this the same WP that J. Orrand (AMD Guy) used in his rig. I had replaced my Hagen 301 175GPH powerhead with this Aquarium Systems Maxijet 1200 (295GPH) for better flow a month before, but obviously something went very wrong. Using the MBM interval log function, I figured the housing broke/cracked about 24 hours earlier. I have an emergency shutdown program that triggers shutdown at 52ºC, but it wasn't needed in this instance.
Luckily, I still had my old powerhead as a reserve and installed it without incident. Plus my temps were 1º less than before (when the Maxijet was functioning properly) , probably because the pump wattage rating is less than half of the Maxijet. I have no idea what caused the pump to fail, except that under the instruction page for the pump, watter temps are not to exceed 35ºC. I couldn't find any debris either. Just another reason to use a reservoir system instead of inline in my book;) .
I siphon out the water (getting a mouthful of distilled water and watter wetter in the process). After thoroughly rinsing my mouth out I proceeded to remove my waterproof junction box to ascertain the situation. There was no debris save for some plastic bits from the directional valve mounting. Also, the directional valve housing was cracked, as was one of the two tabs integrated into the sealed induction case. To give you an idea, this this the same WP that J. Orrand (AMD Guy) used in his rig. I had replaced my Hagen 301 175GPH powerhead with this Aquarium Systems Maxijet 1200 (295GPH) for better flow a month before, but obviously something went very wrong. Using the MBM interval log function, I figured the housing broke/cracked about 24 hours earlier. I have an emergency shutdown program that triggers shutdown at 52ºC, but it wasn't needed in this instance.
Luckily, I still had my old powerhead as a reserve and installed it without incident. Plus my temps were 1º less than before (when the Maxijet was functioning properly) , probably because the pump wattage rating is less than half of the Maxijet. I have no idea what caused the pump to fail, except that under the instruction page for the pump, watter temps are not to exceed 35ºC. I couldn't find any debris either. Just another reason to use a reservoir system instead of inline in my book;) .