Unsolved
1 Rookie
•
3 Posts
0
2502
November 27th, 2020 09:00
Precision T5600 boot problem
Hello friends, I have an issue with my Precision T5600. With the power cord connected, the Power on button is a solid amber light while 134 are flashing amber lights.
According to Dell, this is a PSU cable failure.... However, here is the thing. If I disconnect the power supply cable to CPU 1, all system fans come on and operate normally but the the amber lights still the same.
I have discharged residue power by following standard procedure but no luck...I also have disconnected all add on components such as GPU, HDD, RAM, DVD etc, at one point I even removed the CPU from the socket but the amber lights are still behaving the same way.
I must add that the fans still remain running even when the power is switched off manually until the AC cord is disconnected from PSU.
At first I thought there could be a capacitor in the front panel board that keeps a charge because despite manually discharging the CMOS, when connecting the front panel power cable to the system board, the amber lights flash for a few seconds before going off. This is despite the fact that the AC power cord is plugged off.
While Dell describes this problem, I haven’t found anywhere where a specific solution to this problem is being offered, I have also noted that there are very few if not only one or two other people who have experienced this problem.
With the system fans working properly, with power also reaching the front panel correctly I’m reluctant to entertain the idea that this could either be a damaged CPU or system board. I’m more inclined into thinking that the PSU indeed may not be providing sufficient power especially to the CPU....
0 events found
bmcowboy
4 Apprentice
•
573 Posts
1
November 27th, 2020 18:00
Hi @munluc2000 ,
One important thing not mentioned yet: Does your T5600 POST at any point during the whole process?
It really looks like a defective PSU or motherboard being the root cause. If possible, find another PSU to test with.
For T5600, it still able to POST even with insufficient power to CPU, but with the following alert displayed:
"Your current power supply does not support the recent configuration changes made to your system. Please contact Dell Technical support team to learn about upgrading to a higher wattage power supply."
munluc2000
1 Rookie
•
3 Posts
0
November 28th, 2020 13:00
Hello, many thanks for taking time to respond to my question.
unfortunately it doesn’t Post. The moment you turn on AC power the amber light on power button comes on together with flashing amber lights 134
munluc2000
1 Rookie
•
3 Posts
0
December 3rd, 2020 01:00
So I tested the PSU and everything seems ok with it. I also observed that the CPU is cold despite the PC being on.
At this stage I suspect two things, a faulty motherboard or a dead CPU.... I was hoping to find somewhere to test the CPU unfortunately I can’t find any working server or workstation that I can use to test my Intel Xeon E5-2680 processor.
My only option at this stage is to start testing power supply to the processor and RAM modules. If power is getting through all the ICs, capacitors etc then I will be certain the issue is the CPU.
speedstep
11 Legend
•
47K Posts
0
December 3rd, 2020 08:00
Fans spinning doesnt make a power supply good on all rails.
You have bad power supply. Your motherboard is indicating power good is NOT good.
https://www.amazon.com/CVMY8-Switching-D825EF-00-Precision-Workstatio/dp/B016L3MHBE
CVMY8 Power Supply for Precision T5600
if they never failed they would be bolted in and wires soldered to the motherboard.
Brendonmc
1 Message
0
October 5th, 2021 22:00
I had the same problem. Turned out to be an issue with the USB 3.0 driver. Unplug anything connected to the front and rear USB 3 ports and remove the power cable. Leave it for an hour or so, or even overnight. Reinsert power cable and it should boot again. Search the Vista 64 bit drivers for the USB 3 port (they don't show up under Win10). Download and run the files and then reboot. The USB 3 ports now should be more stable and not fault the PSU.
Good luck!