This is a new one

[Nastynate]

Alright I have an Alienware R11. I was gone for a month and while I was gone the charging end of my Logitech mouse cable was plugged into an outlet while plugged in to my motherboard (don’t ask). I was told this blew the breaker and then they flipped it back on. I got home and the computer didn’t even attempt to turn on but it did flash yellow sometimes every( once every 6 seconds) the button in the back showed me that the psu was still good and I did the paper clip test and even replaced it. This didn’t do anything. After thinking I obviously figured the mobo was fried so I replaced that. When I first started it, it booted to PXE boot screen and eventually shut off. It currently turns on for a split second and then turns off. Also when I plug the power cable back in it tries to turn on right away without pressing anything.
Specs:
GPU- NVIDIA GeForce 2070 super
Cpu- i7 10700F
Psu- 1000W
Ram- 16GB dual channel hyperX
M.2 rocket 1TB
H60 liquid cooled

Other things I’ve tried
-Cleaned everything
- took out cmos for 5 min and replaced
-Unplugged gpu and tried to boot
-Unplugged each fan
-Swapped back to air cooled cpu (same outcome)
-Cleaned Ram and went down to one strip

Going to try and unplug both Ram.

Any help would be appreciated, this isn’t a common thing to find on google and believe me I have done a lot of research. Probably forgetting some things I’ve tried but I don’t know what could be impacted by a surge coming through a USB port.

 

[Nastynate]

Couldn’t find the edit button but:

Unplugged the “ATX CPU” cord from the motherboard and now it runs. Could this mean my processor is fried? Also what is a way I can tell if my gpu is fried. The fans on the gpu spin

 

[phillpower2]

Not new at all, this type of issue can happen any time something that shouldnt be gets plugged in or out and any surge can take out the entire rig not just one component.

Was the old thermal compound properly cleaned off the top of the CPU and a good quality compound correctly reapplied.

Do you get any on screen message at all.

Do you have a keyboard attached to a PS/2 port or the USB type connected to a black USB 2.0 type port.

What are the brand and model name or number of the both PSUs and MB/s.

What speed is the RAM.

The behavior in your reply can for three examples be caused by a bad CPU, overheating or a system short, the latter can be caused by using too much thermal compound and overheating can be caused by not cleaning off and correctly applying thermal compound.

Fyi, the CPU that you have does not have integrated video so the PC will not boot without a fully functional add on GPU.

 

[Nastynate]

Psu- D1000EGM-00
MB- IPCML-SH
I believe these are it. Sorry if it’s wrong

Keyboard is attached once I got it to stay on.

Going to redo thermal paste because I think I did apply to much.

 

[Nastynate]

Alright cleaned and re applied thermal paste. Didn’t work

- Ram - DDR4 XMP 2933 MHz

 

[phillpower2]

Do you get any on screen message at all.

Do you have a keyboard attached to a PS/2 port or the USB type connected to a black USB 2.0 type port.

Can you also answer the above, both are important to know.

when I plug the power cable back in it tries to turn on right away without pressing anything.

Is this behaviour the same.

Alright cleaned and re applied thermal paste. Didn’t work

How did you clean off the old thermal compound, what compound was reapplied and what method did you use to reapply the new compound.

If you applied too much thermal compound the first time and or did not use the correct application method you may have gotten compound into the CPU socket which will short out the CPU/MB.

 

[Nastynate]

No on screen messages at all. Keyboard was plugged into a 3.0

Thermal paste- the amount I applied didn’t push over the sides of the cpu I cleaned the top off with a paper towel and reapplied a pea size.

Yesterday I replaced cpu, gpu, and Ram with
11th gen i7 11700
RX 6500 XT
2 8GB 3200 mHz

This gave me a 7 flash sequence on the front of my R11 which according to r11 manual is cpu failure. I did the cmos battery reset. I triple checked everything and Idk if cables could be bad or what.

 

[phillpower2]

No on screen messages at all.

When you know that your screen is good a black screen means that the problem is with the source of the video signal or the cable that is carrying the signal.

Keyboard was plugged into a 3.0

Keyboards must always be connected to a black USB 2.0 port on computers that have them, reason being is that not all MBs have USB 3.0 drivers mapped into the BIOS.

I cleaned the top off with a paper towel and reapplied a pea size.

Both are incorrect.

The previous thermal compound should have been cleaned off with industrial strength alcohol or 90% pure rubbing compound before applying a new good quality compound in a vertical line, centre of the CPU and away from the edge of the CPU by at least 10/12mm.

when I plug the power cable back in it tries to turn on right away without pressing anything.

Is this behaviour the same.

You still never answered the above.

You really should have post back here before purchasing anything else, your update suggests that you have thrown good money after bad I`m afraid

 

[Nastynate]

Sorry trying to hit questions being asked. I did return the parts that I used.

Before I added new parts and after it still automatically turns on when I plug the power cable in.

I’m regards to the cpu I did clean it off with alcohol but I did not apply that way.

 

[phillpower2]

Before I added new parts and after it still automatically turns on when I plug the power cable in.

Other than a bad PSU, a short circuit or a faulty/incorrectly connected case switch are two possible causes.


Best couple of suggestions I can make would be first remove the MB and do a barebones set-up on a piece of cardboard (make sure it is larger than the MB) only connect the PSU, the screen to the appropriate video port on the MB **, 1 stick of RAM and the keyboard.

** The GPU must be removed from the PCI-E slot on the MB.

IF your MB doesn`t have a power test switch you will then need to short out the 2 power on pins on the MB header to get the PSU to activate, you can use a small flat bladed screwdriver or a paper clip bent into a U shape, this is perfectly safe if you do not touch anything else, the idea is to see if we can get a BIOS screen if you do you can then add one component at a time until you find the problem component, you must power down and remove the power cord from the wall before adding another component, second suggestion try a known working PSU, it is not unknown for new components to be bad, third suggestion try and loan an ordinary PCI graphics card (not pci-e) again to try and get a BIOS screen.

Other things worth checking include, if you used stand offs beneath the MB are they in the correct locations (only where there is a screw hole in the MB) otherwise the MB will short out, check for stray screws or bared wires for the same reason, make sure the jumper cap that can be used for clearing the CMOS is not missing or on the wrong pins and finally try removing the CMOS battery for a few moments and then replace it, this will clear any possible bad MB settings.

 

[phillpower2]

Being that the OP has revisited the forum but chose not to reply this thread will be closed.