On Fridayen den 9 November 2001 14.07, kons Richard Bown wrote: > Hi all > > I d be very suprised if the problems were related to elctrolytics caps > on the motherboard, > there's no new technology with making them these days and they are > pretty reliable, in that type of use... > BUT > > > the most unreliable place to put them is in switch mode power supplies, > this is where they will dry out agive problems, crashes in the night can > be caused by line transients, esecially in urban areas. often caused by > the supply company switching sources, > electrolyte caps wont do anything about line surges, unless they are for > periods of greater than 100 mSec. > > I would be more inclined to put line transient protection on the supply > to the pc, and maybe if your really worried, change the switchmode PSU > in the pc, there only about $20. > Definalty do not try to change ant thru hole component on a motherboard > unless you know > how to work with multilayer pcb's, and have some understanding of ESD > > > HTH but probally caused more confusion.
Not at all. The most ultimate solution I was about to implement a couple of years ago but didn't for some reason was a car PSU, a car battery and a charger. Clean power and a sort of UPS function too, very neat except it's quite costy. Where I live there's problem all the time with transients, the light's flashing constantly, it's a miracle my PSU:s haven't gone up in smoke yet. It's just a couple of kilometers to the nearest powerplant (Akkats, 1,9km above the arctic circle;)). I wouldn't be surprised if the AC power differs between 220 - 240 volts here... I don't even trust the grounded outlets either.. A good middleware solution would be a device where you have the power from the outlet galvanically(?) separated from the PSU, but that's quite costy too... I don't know the english name of that sort of device, sorry. I use these in studio and also on stage sometimes to isolate hum (ground loops) because the ground is too dirty(!). (I'm a sound technician from time to time...) I wouldn't dare solder my motherboard ;) I think the most problems are becasue of ESD shocks, and these suckers will hopefully show immediately, but often after a couple of years. -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- | Oden Eriksson, Deserve-IT Networks, Jokkmokk, Sweden. | Mandrake Linux release 8.2 (Cooker) for i586 | Current uptime with kernel 2.4.13-4mdksmp: 29min | cpu0 @ 814.28 bm, fan 4166 rpm, temp +33.0�C | cpu1 @ 815.92 bm, fan 4115 rpm, temp +31�C
