Ah yes, the old Glue mod... Well my Via 1300 made some nasty vibration too, But after using some PLASTIC weld epxoy it's a LOT quieter! I can't hear it over the fans and HD's etc...
You just take out the impeller, See where the reddish part is, take something to dry it off, get some rubbing alcohol and clean off the Reddish part/Spot you're going to bond. Then dry again, apply the Epoxy, but not too much. Let it dry and there shouldn't be ANY play or movement between the Reddish impeller and it's shaft. At 1st running of the pump, it'll do this funny saking, then it'll spin up at full blast and things will be much quieter... I thought the shaking meant I F**cked up, but it's just the impeller having to get the water moving sufficently enough for the flow to get up etc... I've been running mine near 24/7 and not had a problem at all!
Good luck
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XP 1600+ AGOIA-Y (GreenLabel, UNLOCKED!@/ NF7-S 2.0/ PC 2700 DDR
10.5*172FSB(1806/ 1991 high), Vcore 1.792...@84.95Watts
--86' Chevette Heater Core
--1/2" Vinyl tubes
--Via1300-Stealth Mod(QUIET!)
---Home made copper-tube block
---PVC small internal res