Hi,
This may not be your issue, but it is my issue.
My M6F did about the same thing. It recorded some stuff in Media Center off a ethernet-attached tuner, I watched it, it worked fine. I went down stairs for a victory snack and when I came back it looked like the machine had gone to sleep. The ROG logo pulsed and everthing. So I pushed the power....nothing except a "tick" from my AX1200i. I tried a few other things, removed molex-attached fans and etc...didn't help. Removed all cables except the 24 and 6 pin ATX, and nothing. When I plug in the power, the start light and reset *may* light. Pressing Start makes the "tick" from the PS. I purchased the smallest ATX v2 PS above 350 W (as stated in the manual as supported) and tried the 2 ATX power cables. No luck...just the same flashing ROG (mocking me!) and a Start or Reset that sometimes is less bright or reluctant to start. The CPU fan spins occasionally, but usually not. I checked it separately with 12V and it spins. But it still could be the PWM or RPM is not working.
Removing all memory (Muskin Redline 2400MHz - 32GB) gives the same result. Using different sticks in the A2 slot doesn't help. I thought of getting another 4770K or maybe a cheaper one...but didn't want to get stuck...yet.
I took off the plastic armor to try to see if I could see if some piece of wire or something got stuck in there. I went through a whole can of compressed air and found nothing on top or underneath. I removed the battery for 10 min and discharged the Start and still nothing. Then I noticed something. Before removing the armor I noticed it being a bit warm near the bottom PCIe slot...but now that the armor was off, I noticed between the PU300 IC and the capacitor next to it, these two devices are HOT too hot to touch for more than 2 seconds with only the pre-start power enabled.
It may look like there's a small crack between these devices. At least it seems like it on the top set of traces (this is a multi-trace board with overlapping conductive traces going to components). I've made a case for Asus to check out. But, of course, making a case is a pain. I can't update the one I made last night, and I can't add a picture because the upload says "not allow". I will attach the image here.
I noted the hot components and the "crack". The reason I say that's a crack is it's not "under" the green overlayment, it's not a hair, and it's not straight, as I'd expect a copper trace to be.
The IC in question is above the lowest, red PCIe connector (when the board is mounted in it's standard, as seen in the manual, orientation) It looks like a 3-pin voltage regulator. The crack (or scratch?) seems to run right exactly up to the small heatsink soldered to the board. The IC itself has the following markings: GS1185LD. According to gs-power.com, this component is an adjustable TO-252 packaged, 3-terminal voltage regulator, capable of up to 5A of regulated output.
If this IC is getting that hot before even the main power sequence begins, it has to be drawing close to 3 or 4 A of current...there has to be something wrong with the board, I will attempt to RMA it as soon as I can. I'll let you know what happens.
Regards,
-Ambi
P.S. If I remove all memory and the CPU, what would a "good" MB do? The only post codes I ever see are occasionally a "00" but that's not documented at all in the manual. Is there a check to do with a new board without inserting memory or CPU?
This may not be your issue, but it is my issue.
My M6F did about the same thing. It recorded some stuff in Media Center off a ethernet-attached tuner, I watched it, it worked fine. I went down stairs for a victory snack and when I came back it looked like the machine had gone to sleep. The ROG logo pulsed and everthing. So I pushed the power....nothing except a "tick" from my AX1200i. I tried a few other things, removed molex-attached fans and etc...didn't help. Removed all cables except the 24 and 6 pin ATX, and nothing. When I plug in the power, the start light and reset *may* light. Pressing Start makes the "tick" from the PS. I purchased the smallest ATX v2 PS above 350 W (as stated in the manual as supported) and tried the 2 ATX power cables. No luck...just the same flashing ROG (mocking me!) and a Start or Reset that sometimes is less bright or reluctant to start. The CPU fan spins occasionally, but usually not. I checked it separately with 12V and it spins. But it still could be the PWM or RPM is not working.
Removing all memory (Muskin Redline 2400MHz - 32GB) gives the same result. Using different sticks in the A2 slot doesn't help. I thought of getting another 4770K or maybe a cheaper one...but didn't want to get stuck...yet.
I took off the plastic armor to try to see if I could see if some piece of wire or something got stuck in there. I went through a whole can of compressed air and found nothing on top or underneath. I removed the battery for 10 min and discharged the Start and still nothing. Then I noticed something. Before removing the armor I noticed it being a bit warm near the bottom PCIe slot...but now that the armor was off, I noticed between the PU300 IC and the capacitor next to it, these two devices are HOT too hot to touch for more than 2 seconds with only the pre-start power enabled.
It may look like there's a small crack between these devices. At least it seems like it on the top set of traces (this is a multi-trace board with overlapping conductive traces going to components). I've made a case for Asus to check out. But, of course, making a case is a pain. I can't update the one I made last night, and I can't add a picture because the upload says "not allow". I will attach the image here.
I noted the hot components and the "crack". The reason I say that's a crack is it's not "under" the green overlayment, it's not a hair, and it's not straight, as I'd expect a copper trace to be.The IC in question is above the lowest, red PCIe connector (when the board is mounted in it's standard, as seen in the manual, orientation) It looks like a 3-pin voltage regulator. The crack (or scratch?) seems to run right exactly up to the small heatsink soldered to the board. The IC itself has the following markings: GS1185LD. According to gs-power.com, this component is an adjustable TO-252 packaged, 3-terminal voltage regulator, capable of up to 5A of regulated output.
If this IC is getting that hot before even the main power sequence begins, it has to be drawing close to 3 or 4 A of current...there has to be something wrong with the board, I will attempt to RMA it as soon as I can. I'll let you know what happens.
Regards,
-Ambi
P.S. If I remove all memory and the CPU, what would a "good" MB do? The only post codes I ever see are occasionally a "00" but that's not documented at all in the manual. Is there a check to do with a new board without inserting memory or CPU?
