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| Thread ID: 83091 | 2007-09-19 07:39:00 | New PC power up problem | Tukapa (62) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 592626 | 2007-09-19 07:39:00 | Hi all Have just thrown a new computer together. Its pretty low spec system: Asus AM2 mobo Athlon 3200+ CPU 60GB hard drive (which I had floating around) DVD writer 1GB DDR2 Ram Budget case 400W PSU Plugged it in and the LED on the mobo lit up. First went to power it on and the fan spun for about two seconds then it turned off. Unplugged everything leaving just mobo, cpu and ram and tried again. Same result. Unplugged the 4 pin ATX 12V connector and turned it on and the system started up and ran - no shut down. No video signal being sent to the monitor though because (I presume) of the ATX 12V connector being unplugged. Plugged the ATX 12V connector back in and same problem starts again. As an aside for the two seconds it does fire up there is a signal going to the moitor cos the light on front goes from orange to green until it shuts itself off. This doesn't happen when the ATX 12V connector is unplugged. Any suggestions? Ta. |
Tukapa (62) | ||
| 592627 | 2007-09-19 07:57:00 | New motherboard? What model Asus board? Have you tried it using a graphics card? |
Myth (110) | ||
| 592628 | 2007-09-19 08:20:00 | Mobo is Asus M2N-MX SE. Link here (www.asus.co.nz) Haven't got a PCI-e graphics card lying around to test it with unfortunately. Unless I pull my PC to bits! Might have to do that. |
Tukapa (62) | ||
| 592629 | 2007-09-19 08:48:00 | Check out the ASUS forum (vip.asus.com) | Speedy Gonzales (78) | ||
| 592630 | 2007-09-19 09:12:00 | Only guessing here: have a look through CMOS setup, there should be a setting for default graphics, ensure that is set correctly while in CMOS setup, check power settings are all correct The motherboard may be faulty (I had one did something similar recently but it was an older mobo; and in the end it spat all sorts of errors my way), any chance of a return? You may have to try with the PCI-E card (or maybe a PCI card), does it work ok (If you need a PCI graphics card, I have one you can loan, you know where I live) The only other thing I can think of, how reliable is the PSU? |
Myth (110) | ||
| 592631 | 2007-09-19 19:39:00 | Test the RAM, test the PSU too. | pctek (84) | ||
| 592632 | 2007-09-21 01:50:00 | I'd be testing the PSU first, try putting another one in if you've got one, or try that PSU in another PC. | wratterus (105) | ||
| 592633 | 2007-09-21 08:01:00 | Thanks all. PSU was my first thought - am just trying to source another to swap it out. Cheers. |
Tukapa (62) | ||
| 592634 | 2007-09-21 09:16:00 | Thanks all. PSU was my first thought - am just trying to source another to swap it out. Cheers.The nearest I have (spare) is an el cheapo 300/maybe 350W for testing purposes |
Myth (110) | ||
| 592635 | 2007-09-21 10:19:00 | The only two possibilities are really the motherboard and the power supply. Always keep the ATX 12V connector plugged in. Disconnecting it will help your diagnosis about as much as unplugging the computer itself... A dodgy CPU or dodgy RAM wouldn't cause the motherboard to shut off after a few seconds. I'd try to find a spare PSU, and if the result is the same, replace the motherboard. |
george12 (7) | ||
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