sabertooth 990fx cpu light

[davewatts]

built a cheap 6300 system a few weeks ago with a sabertooth motherboard and it has all been going great with my daughter almost constantly playing sims and fallout on it lol. i had it fsb overclocked to 4.5 and turboing to 4.8 with great temps (well below the recommended max) and the vcore at 1.49ish running great and stable in prime for over 3 hours with all the power saving features turned on. today i swapped in two new wd blue drives since the much older pair had a failing drive (raid 0) and fully reinstalled and everything was great.

 

i powered it off and unplugged the system so my wife could vacuum with the outlet lol then left for work. i get home this morning and plug it all back in and power it up and nothing, the system powers up but no signal output and after awhile of messing with it i realize the cpu led on the MB is solid no matter what i do.

 

so looks like the cpu just decided to call it quits as far as what ive read but before i pick up another is there anything i ca try? ive reseated all of the power connectors cpu and ram. the power supply is brand new cx750m so im sure its holding up and everything powers up fine just no post

[Jacksy]

If she cleaned it up by a vacuum cleaner and she got the fans to run, then the fans can produce energy by themself and kill the mobo or GPU.

[Prysin]

Disconnect all drives, cpu fan, system/chassis fans, gpus etc then try to power up only mobo, cpu and ram.

If this does not work, assume the board is dead.

 

The sabertooth 990fx has 2-3 separate ESD safety measures. Including breakers to protect vital parts. If the board died from ESD, it is most likely due to being subjected to ESD at more then one occasion. I got the same board, and trust me when i say, ESD is not very likely to kill that board due to fans being vaccumed, direcf touch while statically charged is another matter

[FruitBasketSilex]

1 hour ago, Jacksy said:

If she cleaned it up by a vacuum cleaner and she got the fans to run, then the fans can produce energy by themself and kill the mobo or GPU.

No offence, but that sounds like bullshit.

[Jacksy]

43 minutes ago, FruitBasketSilex said:

No offence, but that sounds like bullshit.

oh yes mate. And air is a creation of mind because you cant see it.

[Jacksy]

maybe a cmos reset will help.

[FruitBasketSilex]

1 hour ago, Jacksy said:

oh yes mate. And air is a creation of mind because you cant see it.

I see offence was obviously taken.

[davewatts]

5 hours ago, Jacksy said:

If she cleaned it up by a vacuum cleaner and she got the fans to run, then the fans can produce energy by themself and kill the mobo or GPU.

 

5 hours ago, Prysin said:

Disconnect all drives, cpu fan, system/chassis fans, gpus etc then try to power up only mobo, cpu and ram.

If this does not work, assume the board is dead.

 

The sabertooth 990fx has 2-3 separate ESD safety measures. Including breakers to protect vital parts. If the board died from ESD, it is most likely due to being subjected to ESD at more then one occasion. I got the same board, and trust me when i say, ESD is not very likely to kill that board due to fans being vaccumed, direcf touch while statically charged is another matter

my bad didnt specify there lol she didnt vacuum the computer, just needed the outlet since i was using the tv as a monitor lol. so ya it basically was shutdown fully after installing windows 10 then unplugged. about 11 hours later powered on t the red cpu light and the pc never moved.

51 minutes ago, FruitBasketSilex said:

I see offence was obviously taken.

lmao like that response but no fans were never touched. cmos reset and bios reflash did nothing.

 

friday im going to try another cpu before i try to rma this one or just order something else 

[Prysin]

1 hour ago, davewatts said:

 

my bad didnt specify there lol she didnt vacuum the computer, just needed the outlet since i was using the tv as a monitor lol. so ya it basically was shutdown fully after installing windows 10 then unplugged. about 11 hours later powered on t the red cpu light and the pc never moved.

lmao like that response but no fans were never touched. cmos reset and bios reflash did nothing.

 

friday im going to try another cpu before i try to rma this one or just order something else 

did you check if the switch on the back of the PSU has been flipped off?

i know it sounds stupid, but ive had that happen with me.

Forgot i flipped it off, then went all berserk thinking my PC had died when i was done piecing it together again...

[davewatts]

ya unfortunately not that the system all powers up just no post

[davewatts]

well dont know if its good news or bad news....this board i bought was a sealed rma the owner just decided to build an intel setup while the board took forever to be returned so after pulling it all completely apart i realized that it would boot fine on the bench if i put my hand on the northbridge heatsink.

 

i pulled the heatsinks and to my disgust the thermal pad top and bottom were 2 short pieces overlapped to make them fit so a nasty contact there and then they tore a piece of the vrm pad and stuck it on the NB without removing the old ......and they also had reflown the NB obviously poorly since it now again has a cracked solder ball lol.

 

ive cleaned and replaced all that and just used some artic silver instead of pad on the nb.

 

it really sucks also that i just recently sold off all of my reflow equipment from my xbox/ps3 repair and modding days. so i know this is just going to fail again so now im debating on either trying to borrow back my reflow equipment and reflow it, try and go for an RMA since the board is technically under warrant, or call it quits and pick up an asrock fatality or similar.