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| Thread ID: 80585 | 2007-06-28 16:00:00 | Unbalanced Rails? | SurferJoe46 (51) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 563977 | 2007-06-28 16:00:00 | Is it possible or even likely that the twin rails for the lower voltages should be balanced as to draw on them equally or equalize the demand for power? I seem to notice by sound that as I ask to open a window or access a harddrive, that one of my cooling fans changes pitch or tone for a few moments, and then seems to re-steady up at the original sound in a moment or two . Haven't noticed any loss in performance, but is this the beginning of a new adventure for me? I pulled my 12v mod lights off the load and I still have the fans speeding up and slowing down at odd times . Just writing this sentence I heard the fan change tone/pitch twice . This particular computer does not have programmable fans, at least not to my knowledge . . it's an older Dell Dimension 750 P3 running just two 250g hdds and it's clean so I don't suspect any o'heat . P3's weren't notorious for o'heat anyway . . right? |
SurferJoe46 (51) | ||
| 563978 | 2007-06-28 18:02:00 | If you have to ask to open a window????? You are probably living with a landlord whom checks. Regarding the rails. Stop the train or tram. :illogical |
Sweep (90) | ||
| 563979 | 2007-06-28 23:37:00 | Is it possible or even likely that the twin rails for the lower voltages should be balanced as to draw on them equally or equalize the demand for power? I seem to notice by sound that as I ask to open a window or access a harddrive, that one of my cooling fans changes pitch or tone for a few moments, and then seems to re-steady up at the original sound in a moment or two . Haven't noticed any loss in performance, but is this the beginning of a new adventure for me? I pulled my 12v mod lights off the load and I still have the fans speeding up and slowing down at odd times . Just writing this sentence I heard the fan change tone/pitch twice . This particular computer does not have programmable fans, at least not to my knowledge . . it's an older Dell Dimension 750 P3 running just two 250g hdds and it's clean so I don't suspect any o'heat . P3's weren't notorious for o'heat anyway . . right? On the power supply there should be a serial number or model number . Also can you tell me how many Watts the power supply is . Should say something like 250w or 350w on the power supply . |
imjason (12471) | ||
| 563980 | 2007-06-29 00:32:00 | got a link to the manafactures specs? save me searching . some of them do actually run varible speed fans but they should only speed up after a fair bit of load . also typical dell runs very minimal powersupplys, yours is proberly only a 200w at best, some were 135 watt . a couple of new hardrives is proberly pushing it . a prog like everest might give you motherboard voltages, but dell often has motherboards/bios without sensors . otherwise get a meter and see what voltages your geting and more important if it changes under load . a new powersupply would be best BUT they are often microATX powersupply . . . . . good luck in finding one . you may have to change case to fit a new powersupply . |
tweak'e (69) | ||
| 563981 | 2007-06-29 00:58:00 | also typical dell runs very minimal powersupplys, yours is proberly only a 200w at best, some were 135 watt . I don't know if this is true of newish Dells but the older Dimension etc also had PSU in the 200W range but they did deliver the rated Watts on the required rails . Dell could expand the base model without having to change the PSU . A lot of generic PSU might have 350-400Watt labels but they either couldn't do that or too much of it was tied up in the 3 . 3V supply that is a bit pointless now . |
PaulD (232) | ||
| 563982 | 2007-06-29 01:06:00 | TY all | SurferJoe46 (51) | ||
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