Hi!

Thanks for your reply.
I only connected the 8-pin. If I remember correctly, in the quick Setup guide there was an "or" between the 8-pin and 4-pin, so I assumed it's either the one or the other.

I already did 1-4. I'll have a look and see if I missed one of the power Options in the BIOS.

I'm currently at work. I'll plug in the 4-pin EATX12V and the molex when I get home, maybe that will settle the Problem. I'll boot to BIOS and let it run while im sleeping to see if it freezes there as well.

For the FX-8000 series CPUs with no OCing you can "get away" with using only the 8-Pin Aux CPU power but with the FX-9000 series CPUs you will need to have ALL Aux CPU Power Connectors going...the Molex connector is more for the PCIe bus for dual card configurations but I would still plug it in.

Also if you computer does freeze in the BIOS it isn't the end of the world as my system does that also from time to time.

Again keep us posted on your progress!

Well, I connected all power, 8- and 4-pin AUX and 4-pin Molex.

Sadly, no change. In Windows as well as in BIOS the PC freezes after a random amount of time, no error codes except the "AA".

I tried again with only one RAM, cycling through all four of them, the freeze happens with every one of them.

I took the rig apart and reconnected everything, just to be sure that all connections are holding fast, no change.

I think I deactivated all power saving options in the BIOS, double checked that.

Recorded again with AISuite, no spikes before the freeze.

BIOS reset to factory settings I did as well.

EDIT: I had one error code "66" now at a freeze, the other times always "AA".

EDIT2: I downloaded and ran Heavy Duty. The PC froze once after 8 mins at 100%, once after 21 mins. That's about what happens at idle, too. So I think RAM and CPU should be ok?

Hi agibaer

Your FX- 9590 has a 220 TDP Draw and the Cooler Master Seidon 120mm is really for an Intel processor of lower TDP.

The FX-9590 gets hot fast, and you really should have a duel 120mm Fan and radiator, like the Corsair H105 or 110.

Have you checked your temps whilst in Bios? cause it certainly seems to me you are inadequately cooled.

Please check the temps at stock frequency whilst at idle, should be around 26-30c max. (or 10-15c above ambient room temperature)

Please report back.

MM

The cooler came with the processor. It has a radiator and two 120mm fans.

I ran Core Temp all the time since I put together my rig and it ranges from a low of ~15°C to a high of 64°C, that was when I ran the Heavy Load at 100% for about 20 mins.

I have four case fans all together, MB temp never exceeded 45°C.

I entered BIOS several times after a freeze to check on the temperatures, always around 30°c.

"The cooler came with the processor. It has a radiator and two 120mm fans."

Trust him----the stock water cooler is barely adequate. The H110 I use is actually 2 140mm fans on one side, and I added two more on the other side.

With the rig sitting in the BIOS the current cooling should be fine. With that said let's just try to get this system not to freeze in the BIOS.

Try this if you have not already:
0) force the BIOS to manually select a memory speed of 1600 MHz (vs. using the Auto)...this solved my lock-ups once!
1) remove all storage devices data cables and power cables
2) remove all expansion cards except the video card of course
3) re-mount the CPU cooler...make sure to tighten each screw a little bit at a time and keep rotating (reapply thermal grease too)
4) remove keyboard (leave mouse plugged in)

if you are still getting lock-ups then plug in the keyboard and remove the mouse

if you are still getting lock-ups then try the following:
5) can you switch out the video card
6) can you switch out the PSU
7) can you switch out the memory to another type (is this memory on the QVL?

I assume this is all new parts? I hope you observed ESD precautions during assembly 🙂 Did you only insert parts into the motherboard when the PSU switch was in the off/0 position (leave the power cord plugged in as this is what provides a ground from the case to "ground"...trust me...my degree is in electronics).

I am starting to run out of ideas here...you will need to switch out parts to see what the issue is.

I tried 1-3 before, no result. I changed the Memory Speed, booted to BIOS without keyboard, then mouse, no dice. Reinstalled Windows, just to be sure it's not the OS somehow.

I will switch out parts tomorrow, I still have all the parts from my previous rig. I'll also test the new parts on my old MB, if possible.

MB, RAM, PSU, GPU, CPU, SSD are brand new. The case, mouse, keyboard and the HDDs are old, but everything worked fine on my previous rig.

The RAM is not on the QVL, but I read reviews that people use it on the Formula-Z without problems. I made sure that all parts are compatible with the MB before I put together my rig.

I've been putting together my own rigs for over fifteen years now, never had any serious issues. Well, it was just a matter of time, I guess 😄


EDIT: It's the first time I use liquid cooling, though. Maybe I'm doing somethin wrong there?

I plugged the cooling piece into the CPU Header and set the speed to Turbo in BIOS. The two fans are plugged into a single chassis fan header and are set to Standard in BIOS. If I set them any higher, they sound like a plane taking off...