Synopsis: PSU died, replaced PSU with different model, system boots to bios successfully but does not recognize any devices in SATA ports, nor do those devices appear to be getting power. Now can't even get to BIOS, entire PC flicks on and off repeatedly as soon as I turn the PSU on regardless of whether I hit the power button on the front of the computer.
System Specifications
Original PSU that died: SeaSonic M12II 750 SS-750AM 750w PSU
CPU: Intel Core i5-3570K Ivy Bridge 3.4GHz
GPUs: ASUS 670 non-top version, SLI (2x)
MOBO: ASRock Z77 extreme 6
RAM: Mushkin Enhanced Blackline 8GB (2 x 4GB) SDRAM DDR3 2133
Optical drive: Sony AD-7280S-0B 24x SATA Internal DVD+/-RW Drive
SSD: SanDisk Extreme 240GB SATA 6.0 Gb-s 2.5-Inch (OS is installed here)
Storage drive: Western Digital Caviar Black 1 TB SATA III (This was not connected when power supply died)
Detailed explanation:About a week ago my PSU (Seasonic 750w) died randomly while the computer was left running in sleep . I RMA'd the dead seasonic. In the mean time I happened to come accross an extremely good deal on a new PSU, so I bought it (Thermaltake smart m850w PSU) to have a backup and to get my machine working again.
I hooked up the new PSU to GPUs, CPU, fans, ATX power connector, and to all of the SATA devices, (the SSD, the HDD, and the Optical drive). I made sure to connect the data cables to the SATA devices in the same configuration they were in when working properly. The computer boots successfully to the ASROCK BIOS, all fans spinning. However, I get the error code "A6" on "dr debug" (the led display on the mobo). The manual says this means "SCSI detect". I have no idea what that means.
Anyway, I was able to load the UEFI, and bios recognized all components except for any of the SATA devices--the neither the SSD, the HDD, or the optical drive were recognized--the display said they were empty. The RAM, both GPUs, the processor, and all the fans were detected. Also, I did not have the option to chose my boot priority, as the computer recognizes neither my SSD nor my optical drive. I did not have the HDD connected when the PSU failed, but the BIOS won't read that either. I don't think any of the SATA devices are actually recieving power, as the LED on the optical drive was not was not lit up. Again, the UEFI showed that there were no SATA devices connected to any port, when in reality they clearly were connected both by power and data cable.
Then things get really strange. I unhooked all of the SATA devices except the HDD (the one that wasn't hooked up when the original PSU died) to see if I could hear the disk spinning in an attempt to see if any power was getting to the SATA devices. I plug the AC into the PSU, then I turn the PSU on (not the power switch for the computer, the switch on the PSU). Then, the computer starts flicking on and off in this weird rhythmic pulsating pattern "click...click...click...click..." with about a 1/2 second between each click. Each time the power flicks on, the LEDs come and the fans spin briefly. The strangest part is that I don't need to hit the power button on the front of the case for this to happen, it just starts as soon as the PSU is turned on. In fact, I can't get the computer to turn on at all--the switch on the front of the computer appears to be dead.
I didn't do anything between when I was able to access UEFI and when the pulsating power started except for unplug the power from the optical drive and the SSD.
Measures I have taken in an attempt to fix the problem
1. Unplug the power cables from the new devices and re-seated them.
2. Reseated the data cables to the optical drive and the SSD on the drive end, not on the MOBO side as they are covered by my GPUs and I would have to take them out in order to do that.
3. Tried hooking up a SATA power cable from my old modular PSU and using that in the new PSU in an attempt to power the optical drive (didn't work, I know, bad idea--I learned you aren't supposed to do this shortly after I tried it)
4. Setting all preferences to default in the UEFI.
5. Disconnecting the power cables from one or both of the GPUs. Reseating the CPU and the ATX power cables.
I think that it is either 1. A problem with the optical drive AND the SSD.
2. A problem with the motherboard.
3. A problem with the power supply/it's cables so that it doesn't power the devices and I am just unlucky enough to buy a faulty PSU after the first one died.
4. something I am completely missing.
Final Thoughts--I hope that this is not an issue with my motherboard. Is it possible that the original Seasonic (high quality) PSU failure could cause the MOBO to stop recognizing SATA devices? At this point I shall wait for my replacement SeaSonic to arrive from RMA (could be a week or two) and try to use that in the hope that it will miraculously make everything go back to normal. I suppose it is possible that the SATA power cables from my Thermaltake are just not compatible with the two sata devices, or that it is a faulty PSU. I dont know. Very frustrating, and I would prefer to not have to RMA the MOBO if possible.
My main question is how to procede from here? This is my first build and I am still not that knowledgable about computers compaired to most people in these forums but I do have a basic working knowledge of them.
I am worried that if I keep screwing around with it I may end up frying my CPU and GPUs. I can eat the cost of a MOBO or PSU if necessary, but I can't http://www.techsupportforum.com/imag...mile.gifafford to buy a new processor or two new 670s.
Thanks for the help, and if you need more info or detail I will hapily provide it!:smile:
System Specifications
Original PSU that died: SeaSonic M12II 750 SS-750AM 750w PSU
CPU: Intel Core i5-3570K Ivy Bridge 3.4GHz
GPUs: ASUS 670 non-top version, SLI (2x)
MOBO: ASRock Z77 extreme 6
RAM: Mushkin Enhanced Blackline 8GB (2 x 4GB) SDRAM DDR3 2133
Optical drive: Sony AD-7280S-0B 24x SATA Internal DVD+/-RW Drive
SSD: SanDisk Extreme 240GB SATA 6.0 Gb-s 2.5-Inch (OS is installed here)
Storage drive: Western Digital Caviar Black 1 TB SATA III (This was not connected when power supply died)
Detailed explanation:About a week ago my PSU (Seasonic 750w) died randomly while the computer was left running in sleep . I RMA'd the dead seasonic. In the mean time I happened to come accross an extremely good deal on a new PSU, so I bought it (Thermaltake smart m850w PSU) to have a backup and to get my machine working again.
I hooked up the new PSU to GPUs, CPU, fans, ATX power connector, and to all of the SATA devices, (the SSD, the HDD, and the Optical drive). I made sure to connect the data cables to the SATA devices in the same configuration they were in when working properly. The computer boots successfully to the ASROCK BIOS, all fans spinning. However, I get the error code "A6" on "dr debug" (the led display on the mobo). The manual says this means "SCSI detect". I have no idea what that means.
Anyway, I was able to load the UEFI, and bios recognized all components except for any of the SATA devices--the neither the SSD, the HDD, or the optical drive were recognized--the display said they were empty. The RAM, both GPUs, the processor, and all the fans were detected. Also, I did not have the option to chose my boot priority, as the computer recognizes neither my SSD nor my optical drive. I did not have the HDD connected when the PSU failed, but the BIOS won't read that either. I don't think any of the SATA devices are actually recieving power, as the LED on the optical drive was not was not lit up. Again, the UEFI showed that there were no SATA devices connected to any port, when in reality they clearly were connected both by power and data cable.
Then things get really strange. I unhooked all of the SATA devices except the HDD (the one that wasn't hooked up when the original PSU died) to see if I could hear the disk spinning in an attempt to see if any power was getting to the SATA devices. I plug the AC into the PSU, then I turn the PSU on (not the power switch for the computer, the switch on the PSU). Then, the computer starts flicking on and off in this weird rhythmic pulsating pattern "click...click...click...click..." with about a 1/2 second between each click. Each time the power flicks on, the LEDs come and the fans spin briefly. The strangest part is that I don't need to hit the power button on the front of the case for this to happen, it just starts as soon as the PSU is turned on. In fact, I can't get the computer to turn on at all--the switch on the front of the computer appears to be dead.
I didn't do anything between when I was able to access UEFI and when the pulsating power started except for unplug the power from the optical drive and the SSD.
Measures I have taken in an attempt to fix the problem
1. Unplug the power cables from the new devices and re-seated them.
2. Reseated the data cables to the optical drive and the SSD on the drive end, not on the MOBO side as they are covered by my GPUs and I would have to take them out in order to do that.
3. Tried hooking up a SATA power cable from my old modular PSU and using that in the new PSU in an attempt to power the optical drive (didn't work, I know, bad idea--I learned you aren't supposed to do this shortly after I tried it)
4. Setting all preferences to default in the UEFI.
5. Disconnecting the power cables from one or both of the GPUs. Reseating the CPU and the ATX power cables.
I think that it is either 1. A problem with the optical drive AND the SSD.
2. A problem with the motherboard.
3. A problem with the power supply/it's cables so that it doesn't power the devices and I am just unlucky enough to buy a faulty PSU after the first one died.
4. something I am completely missing.
Final Thoughts--I hope that this is not an issue with my motherboard. Is it possible that the original Seasonic (high quality) PSU failure could cause the MOBO to stop recognizing SATA devices? At this point I shall wait for my replacement SeaSonic to arrive from RMA (could be a week or two) and try to use that in the hope that it will miraculously make everything go back to normal. I suppose it is possible that the SATA power cables from my Thermaltake are just not compatible with the two sata devices, or that it is a faulty PSU. I dont know. Very frustrating, and I would prefer to not have to RMA the MOBO if possible.
My main question is how to procede from here? This is my first build and I am still not that knowledgable about computers compaired to most people in these forums but I do have a basic working knowledge of them.
I am worried that if I keep screwing around with it I may end up frying my CPU and GPUs. I can eat the cost of a MOBO or PSU if necessary, but I can't http://www.techsupportforum.com/imag...mile.gifafford to buy a new processor or two new 670s.
Thanks for the help, and if you need more info or detail I will hapily provide it!:smile: