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| Thread ID: 27622 | 2002-11-27 00:13:00 | Oh crap. I have a SERIOUS problem... Help! | Stormwarden (388) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 101774 | 2002-11-27 00:13:00 | My new mobo arrived this morning, which I have been waiting for for about 4 months now (without a computer). I have a teensy weensy problem - I cant get the computer to power up at all. I installed the CPU & heatsink following the AMD guide (AXP 1800+), the ram is in DIMM1, the voltages, jumpers, yada yada are all double checked, and my graphics card (gainward GF4 MX440) is seated in the slot correctly. The motherboard is a Leadtek Nforce2 (the pro version). The memory installed is DDR333, 256MB of it, and my power supply is supposed to be 320 watts. I have installed motherboards before, but not an ATX one, the manual said that I should have "good conductivity" between the case, power supply, and system board (through the mounting screw holes only). This I have done. The power switch on my case seems to be working (I tested it with a multimeter to make sure it shorted the pins). There are no other add-in cards installed, and I have gone through all of the manuals troubleshooting options, which didn't help. What actually happens is that when I plug it in and turn it on at the back of the power supply, the little light on the network port (onboard) lights up, so I know that the motherboard is at least getting some power, but when I try to turn it on, nothing happens. No CPU fan, no power supply fans, no beeps, nothing. I have also checked to see that the power supply actually starts by shorting the green wire(pwr on) to a black wire, and it seems to start fine. This computer I have just brought cost most of a years income for me, being 17 years old, and it doesn't go!! Please help. (sorry for the long-winded explanation, but I am trying to show the stuff that I have already done to try to solve the prob) |
Stormwarden (388) | ||
| 101775 | 2002-11-27 00:28:00 | nice to see a good explantion for a change. :) small trick is to hit the rest button after you have pluged it in. check switchs are plugged into the right pins, i've seen manuals/mobo's with incorrectly labeled pins before. check that you havn't shorted out the mobo to the case, or scratched the back of the board putting it in. check cpu, psu in anothermachine. nforce has dual ddr so you may want to stick another stick of ram in and get some better performance. |
tweak'e (174) | ||
| 101776 | 2002-11-27 00:44:00 | How am I supposed to tell if the pins are labelled incorrectly? I also have a power on switch on my keyboard, which also doesn't work. I have tried the reset button as well. When you mean "shorted the motherboard against the case" do you mean that the mobo should be completely insulated, or just the metal soldered pins on the underside shouldn't touch the case? |
Stormwarden (388) | ||
| 101777 | 2002-11-27 00:48:00 | Does the Fan on the Graphic Card (If one) start going, and what about the CPU Fan (Again - If one, which there should be) or the PSU Fan? Sounds like your PSU and motherboard are going fine. Try unpluggin all the drives (CD-ROM's etc included) and any extra card from your system, such as sound cards, but leave the LAN in if you know its going and has the little lights on too to show that its powered. Try only pluggin in the Power-Pin in to the motherboard, the rest such as speakers can wait... Let us know what happens, sometime a proccess of emilination is best... Cheers BTW, The Motherboard should only be touching the little Spcers that sit between the motherboard and the Case, not actually touching the actual case itself - It could be dangerous! Chilling_Silence |
Chilling_Silence (9) | ||
| 101778 | 2002-11-27 00:51:00 | I had a similar problem last week when my PC was as dead as a dodo. It ended up being the front USB being shorted out - which I discovered after much wiggling of wires and components. BALDY:-) |
Baldy (26) | ||
| 101779 | 2002-11-27 00:53:00 | in reply to Chilling Silence: Thanks for the reply, but as I wrote above, I have only got the GFX card plugged in. Everything else is disconnected including HDD, FDD etc. No, none of the fans go. The mobo doesnt seem to be touching the case either, apart from the risers, and the LAN is onboard. I have also tried unplugging RAM, video, but not the CPU. The underside of the mobo doesn't seem to be scratched either. |
Stormwarden (388) | ||
| 101780 | 2002-11-27 00:54:00 | to Baldy: What do you mean "shorted"? inside the USB socket itself, or the header pins? None of the pins on the mobo are touching. |
Stormwarden (388) | ||
| 101781 | 2002-11-27 00:55:00 | Your power supply might be expecting a "power good" signal, that your motherboard doesn't support. If this is the case, it would give you the symptoms you report. If you can identify the "power good" signal wire into the power supply, supply it with +5 volts and all might work. |
godfather (25) | ||
| 101782 | 2002-11-27 01:00:00 | I can get the power supply to start by shorting the green wire(pin 14, i think) to a black ground wire, and the fans etc seem to go fine without a pwr_good signal. I am beginning to think that I have a stuffed CPU/MOBO and I am dissapointed. I really needed this (after waiting for 4 months for an Nforce2) by december 9th for a big LAN party held by my friend, but If I can't get this annoying problem sorted out, I don't think I'll make it. Can somebody tell me EXACTLY what I should have plugged in when I try to turn it on? |
Stormwarden (388) | ||
| 101783 | 2002-11-27 01:27:00 | all you need plugged in is mobo (dosn't need to be in case) psu, cpu, on/off switch, reset switch and cpu fan. when it powers up you should get beeps due to no ram or video. if that fails check the psu will work in another machine and the cpu will work. if they are ok then replace mobo. |
tweak'e (174) | ||
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