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| Thread ID: 85846 | 2007-12-24 03:34:00 | 8 Y/O COMPAQ Presario Question | SurferJoe46 (51) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 624220 | 2007-12-24 16:28:00 | Found a new PSU at a dealer in Texas...for $17.00USD. (Comp-Recycle.com) Ordered it already..but this is Xmas eve morning so they may be a few sheets to the wind right now and for the next few days..we'll see when they e-mail the confirmation. |
SurferJoe46 (51) | ||
| 624221 | 2007-12-24 22:45:00 | If you remove a psu from a pc and apply mains power to it you will get approx 5.?? volts between the purple wire and any black wire and thats all you will get even from a fully functioning psu, this is called 5 volt standby and it provides the power for the switch on circuits on the motherboard to function. If you want to test the other supplies you have to fool the psu into thinking it is still connected to a pc. To do this, with the mains power off short the green wire (pin 14) to any black wire on the 20pin mother board plug ( for this I use a bent paperclip) and apply the mains power, the psu will then startup if it is serviceable. However since these psus are switching psus some of them require an output load to function at all so I always plug at least one device connector into a spare hdd or cd drive before connecting the mains power. If after all that you cannot get the other supplies to appear then throw it away and replace it. HTH |
jinja_thom (4306) | ||
| 624222 | 2007-12-25 02:37:00 | If you remove a psu from a pc and apply mains power to it you will get approx 5.?? volts between the purple wire and any black wire and thats all you will get even from a fully functioning psu, this is called 5 volt standby and it provides the power for the switch on circuits on the motherboard to function. If you want to test the other supplies you have to fool the psu into thinking it is still connected to a pc. To do this, with the mains power off short the green wire (pin 14) to any black wire on the 20pin mother board plug ( for this I use a bent paperclip) and apply the mains power, the psu will then startup if it is serviceable. However since these psus are switching psus some of them require an output load to function at all so I always plug at least one device connector into a spare hdd or cd drive before connecting the mains power. If after all that you cannot get the other supplies to appear then throw it away and replace it. HTH Ohhhhhhhhhhh...thanks..will do that right now.....(just got back from pulling an engine outta a C30 Chevy dually truck. After a hot hot shower and some seriously good hand scrubbing I will anyway...again, Thanks! |
SurferJoe46 (51) | ||
| 624223 | 2007-12-25 10:56:00 | Purple wire is the 5 volt standby line, this measuring 5 volts while everything else is off is normal also shows that at least half the PSU works |
Agent_24 (57) | ||
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