I have a problem with my Dell Precision T3500, the issue is that whenever I try to start the computer the power button it blinks amber 4 times and gives the number code 1 and 3 however it does turn on after a while. I assumed that it was something to do with the motherboard hwoever I am not sure since there isn't many problems like this on the internet where I could find a solution. I looked in the manual and the closest thing I could find was that it was a PSU or PSU cable problem. If anyone has a solution or answer for this I would be very grateful. The T3500 currently has a Nvidia GTX 260 installed with 4GB of ram. In addition if it is a PSU problem could you please list what PSU are compatible with the T3500 such as a T5500 PSU or a T7400. Thank you for your support.
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Lights 1 and 3 indicate a RAM problem. Try reseating the RAM. If that doesn't help, try removing one module at a time, making sure the remaining modules are used in the correct slots <ADMIN NOTE: Broken link has been removed from this post by Dell>.
Please post back and let me know if you need more help.
Not at the momment, I'll try the diagnostics tests, I'll get back to you with the results, Thanks for your responses and help so far.
I'm still having issues with this 1-3 amber blinking light, Dell diagnostics reads nothing does anyone have any ideas about what is causing it?
I hope your machine is still under warranty I've had this happen to 5 of my T3500s. The fix is a new power supply. Each time they've sent out the power supply, they've also sent out a new motherboard. I think there's obviously a big problem with the power supplies in these T3500s, as each one from our initial purchase has had the same issue (we have a bunch of newer ones that haven't shown the problem, at least not yet).
Each time it happens I request that the tech person try to make this a known issue (and perhaps trigger some kind of extended warranty/recall), but so far no progress there....
Leaving it unplugged for a bit seems to fix it temporarily, but then we're scared to turn the machines back off.