Computer wont post, immediately shuts off

[LutaWicasa]

I have the motor plugged into CPU FAN and then that fan connected to the radiator in CPU OPT.

So...I'm assuming your mobo doesn't have the W_PUMP header?
If not...have you tried simply reversing those plugs?

 

[sirhotalot]

So...I'm assuming your mobo doesn't have the W_PUMP header?
If not...have you tried simply reversing those plugs?

I looked it up, apparently the fan should be plugged into CPU_FAN and the pump should be plugged into one of the CHA_FAN headers. I'm going to make the change but I don't think this would effect booting up. Results wont be immediate but I'll report back.

 

[LutaWicasa]

So....it would hurt to try?

 

[caddi daddi]

when you are looking at an rma, trying anything is a good thing.

 

[sirhotalot]

I plugged the pump into one of the CHA_FAN headers and plugged the fan into CPU_FAN. I also disabled some of the CPU energy saving options in the BIOS which I think automatically assigned the CPU more voltage. There's an option for increasing the offset, it's currently set to +0.006. Should I increase that?

 

[wingman99]

How is it doing now after the changes you made?

 

[sirhotalot]

How is it doing now after the changes you made?

It's too soon to tell. Sometimes weeks can go by without any issue. As I have no idea what the cause is I don't know how to replicate it.

 

[wingman99]

It's too soon to tell. Sometimes weeks can go by without any issue. As I have no idea what the cause is I don't know how to replicate it.

The answer to your other question is Vcore +0.050

 

[caddi daddi]

then as I read it you have either lost the tach signal from the pump or the cpu-opt fan header has gone bad.

 

[RJARRRPCGP]

Not on an 8 core FX. You can't count to 3 before it shuts down.

The Sabertooth 990FX R 2.0 may have a design flaw!
I suspected mine was shutting down at only about 65 C with a paltry 4.4 Ghz OC! WTF! (It was an OC test and it would shut down easily with pass #2 x.264!)

I saw that even a cheap 970 motherboard can do 4.4 with an FX 8350! (And no, I'm not taking about as cheap as an MSI "G43") (I'm talking about the Gigabyte GA-970A-D3P (non-U))
(Even the non-U version has a heatsink on the VRM section.) (See isogamer's posts)

I saw it climb, but only to around 65 C for the socket temp before it clicked off! It looked rather reasonable for a heavy load! The package temp was way lower! Makes me want to curse Asus...

I should have tried it with another motherboard...

 

[EarthDog]

It's too soon to tell. Sometimes weeks can go by without any issue. As I have no idea what the cause is I don't know how to replicate it.

Don't change anything else so you know what exactly the problem is... If you change two things, you won't know what did it.

 

[sirhotalot]

It's now been a full month without issue. Either changing the plug out of the CPU_OPT or upping the voltage helped. I think it's safe to say it's fixed.

 

[LutaWicasa]

Now..when are ya gonna reverse one'o those so's we know which took care of th' problem?

 

[sirhotalot]

Now..when are ya gonna reverse one'o those so's we know which took care of th' problem?

I'll lower the voltage to default settings next time I restart the system.

 

[sirhotalot]

I'll lower the voltage to default settings next time I restart the system.

It's been a month without issues. It once didn't boot Windows claiming CPU overclocking problems but it only happened once. I think the issue was the header.

 

[wingman99]

Glad it's working good. What was wrong with the header plug did it have a short?

 

[sirhotalot]

Glad it's working good. What was wrong with the header plug did it have a short?

Not sure. I don't know how to check for that kind of thing.