Dell Dimension E521 blinking orange light

shadow2450

Honorable
Jan 11, 2013
10
0
10,510
Hi,
I just recently tried to upgrade the CPU on this old dimension e521 (since it was running an awful AMD 64 Athlon 3200+) to an AMD 64 athlon x2 6000+. I succeeded in removing the old CPU and installing the new one with all the proper precautions. So once it was all in there, I closed the panel, hooked it up and powered it up. At first, it turned on just like all the other times, but within a few seconds, it immediately shut down without any warning (no sounds, or screen warnings). I tried to start it up again but all it did was show was a blinking orange light. No fans or power to any other hardware can be heard.

At that moment, I opened up the case and began to inspect the wires to make sure each one was connected correctly and sure enough, nothing was out of place. I tried resetting the configuration by removing the CMOS battery and holding the power button for more than 15 seconds, as well as having all connections unplugged to the motherboard. After a full 5 minutes, I put them all back and tried to power it up but I got the same light. Strangely, it instantly starts to blink orange simply by plugging in the power cord, I don't have to push the power button just to get that light. I thought maybe the new CPU was bad so I proceeded to replace it with the old one, but I still got the same blinking orange. I searched on google for some solutions to help fix this problem but I can't seem to find any that is helping me out. I'm not sure if its a bad psu or the motherboard just failed on me. What do you guys think? I hoping to find a good solution or answer if its the psu being the problem (if a psu can instantly just fail after a few seconds on boot with the new cpu) or if its the motherboard (same theory in relevance to the psu).

Just to add more info: I've updated the bios before installing the new CPU, the computer worked perfectly fine before, and I took all precautions in terms of preventing static while installing the CPU.
 

shadow2450

Honorable
Jan 11, 2013
10
0
10,510
ADA6000IAA6CZ - 6000+, 89W, 3.0Ghz, Windsor (F3) is the processor I chose to install on this system. I know the 125W couldn't run on it.

~update on this~ I ordered a new psu to replace the old one and once it arrived, I installed it, but sadly, the damn orange blinking light still showed. So now it can be confirmed that its not the psu being the culprit, rather I think I somehow fried the motherboard :/. Just to make sure, I installed the cpu again and made sure it was correctly placed (once more) and still nothing changes. I think I might just buy a new motherboard.
 

astrlsrfr

Reputable
May 4, 2015
1
0
4,510
I have recently been dealing with this problem on an old repurposed DELL Dimension 8400. I did quite a bit a research on this & tried out different things. I haven't found any concrete eveidence of a power supply problem nor a problem with any parts connected to the power supply. That is not to say such problems do not exist - perhaps they might intermittently or otherwise.

As an aside, I run CentOS Linux on this box. For me, the problem reoccurs every time I do a full power off. A reboot, eg, does not trigger the problem.

What has worked for me is to first unplug the power cord and then pop the CMOS battery out and then back in after a few seconds & then plug it back in. For some reason this allows boots to proceed. It's as if the CMOS is remembering something to halt the power-up & flash the light. I have no clue what its remembering. Might be something real - or the box could be going senile.

The only problem with this solution (besides having to pop the battery), is you have to re-enter the CMOS if you have any non-default values like wake-on-lan (not needed anyway if you have this issue, lol), hyperthreading, or whatehaveyou. I have read this technique has worked for some others, so I suggest to try it out. At least to get your stuff migrated off, or buy some time til you can afford a replacement box. You can just leave it running vs powering off & it's almost like nothing is wrong at all.

If I can identify my root cause I will update...

Good luck!

UPDATE: (May 9, 2015 ):
I found some time to pop open my old power supply (PS) which was running this box. Now, this old PS was a DELL OEM one which was I had put in as a replacement to the original one which failed some years ago. What I found was brown capacitor goo had spilt all over the circuit boards. It appears nearly every cap in there had failed. I guess this was not enough to stop the PS from working good enough with the CMOS batt reseat trick - but clearly this PS's days are over. So I got a new one: Startech PW350DELL (350 watts). About $50 delivered. Note that they call for a PW400DELL(400 watts) for the 8400, but I have pulled out a a lot of stuff from the original 8400 config, and my last PS was only 250watts. My flashing amber light is no more.