PC won't boot

dubpynchon

Hi all,

I upgraded my gpu to a 980 ti matrix a month or so ago and now my pc won't boot. The led on the ram lights up red on boot and then goes out. Fans run, I can hear the hard drive spinning but there's no output to the monitor or keyboard. I've tried spraying the memory slots with compressed air, tried new ram in every configuration, tried it with the onboard graphics and an older working gpu but no luck. My psu is a corsair 720w so that should be enough for the gpu. The mobo is an asus P8Z77-LE and the cpu an I5-2500K, all working perfectly for four years until it suddenly crapped out. I'm thinking possibly the PSU couldn't handle the power draw from the gpu and somehow fecked up the board. Any ideas?

Keplar240B

720w should be loads and corsair is a good brand

you can get PSu calculators on net
This is a good one

http://powersupplycalculator.net/


thru your PC specs into it and click
it gives a graphic at end of what power each component group is taking at load and idle

Lu Tze

dubpynchon wrote: »

Hi all,

I upgraded my gpu to a 980 ti matrix a month or so ago and now my pc won't boot. The led on the ram lights up red on boot and then goes out. Fans run, I can hear the hard drive spinning but there's no output to the monitor or keyboard. I've tried spraying the memory slots with compressed air, tried new ram in every configuration, tried it with the onboard graphics and an older working gpu but no luck. My psu is a corsair 720w so that should be enough for the gpu. The mobo is an asus P8Z77-LE and the cpu an I5-2500K, all working perfectly for four years until it suddenly crapped out. I'm thinking possibly the PSU couldn't handle the power draw from the gpu and somehow fecked up the board. Any ideas?

Can you get into the bios even with the onboard GPU?

dubpynchon

No, there's no signal to the monitor at all.

aligator_am

Was it booting in to OS at all after installing the card a month ago?

I had something similar to this ages ago, it was a loose power lead plugged in to the graphics card (it looked fine but needed to be pushed in a bit more).

Also, is the machine booting when the card isn't plugged in?

dubpynchon

It was working fine for a few weeks, booted to Windows no problem. Now it won't boot at all, even through the onboard graphics. The board is getting power but the red led for the ram is flashing red. I've cleaned out the slots and replaced the ram and tried one slot but it's still the same.

Lu Tze

dubpynchon wrote: »

It was working fine for a few weeks, booted to Windows no problem. Now it won't boot at all, even through the onboard graphics. The board is getting power but the red led for the ram is flashing red. I've cleaned out the slots and replaced the ram and tried one slot but it's still the same.

Any beep codes from the little motherboard speaker?

ED E

Have you done this?

1. MemOK! switch
Installing DIMMs that are incompatible with the motherboard may cause system
boot failure, and the DRAM_LED near the MemOK! switch lights continuously. Press
and hold the MemOK! switch until the DRAM_LED starts blinking to begin automatic
memory compatibility tuning for successful boot

• Refer to section 2.2.7 Onboard LEDs for the exact location of the DRAM_LED.
• The DRAM_LED also lights when the DIMM is not properly installed. Turn off the
system and reinstall the DIMM before using the MemOK! function.
• The MemOK! switch does not function under Windows®
OS environment.
• During the tuning process, the system loads and tests failsafe memory settings. It
takes about 30 seconds for the system to test one set of failsafe settings. If the test
fails, the system reboots and test the next set of failsafe settings. The blinking speed
of the DRAM_LED increases, indicating different test processes.
• Due to memory tuning requirement, the system automatically reboots when each
timing set is tested. If the installed DIMMs still fail to boot after the whole tuning
process, the DRAM_LED lights continuously. Replace the DIMMs with ones
recommended in the Memory QVL (Qualified Vendors Lists) in this user manual or on
the ASUS website at www.asus.com.
• If you turn off the computer and replace DIMMs during the tuning process, the system
continues memory tuning after turning on the computer. To stop memory tuning, turn
off the computer and unplug the power cord for about 5–10 seconds.
• If your system fail to boot due to BIOS overclocking, press the MemOK! switch to boot
and load BIOS default settings. A message will appear during POST reminding you
that the BIOS has been restored to its default settings.
• We recommend that you download and update to the latest BIOS version from the
ASUS website at www.asus.com after using the MemOK! function.

Flashing DRAM LED = Self testing ram by the looks of things. If you'd a bad XMP profile that'd botch it I assume.

dubpynchon

The motherboard doesn't come with an onboard speaker. I've replaced the memory with the exact same frequency ram and tried it with one and two sticks, no result. I've also cleaned out the slots with compressed air. The led lights when it's powered on as if the ram isn't installed, it is, the clips at the side clicked in. I don't think it's the ram.

ED E

Have you pressed and held the MEM OK Button?

dubpynchon

Yes I have, no change.

Xenoronin

This may be way off the beaten path, but have you tried taking out the CMOS battery for a few mins, putting it back in and trying again?

dubpynchon

I got it working, it turns out it was a faulty wireless pci card. I had done everything but take out the old pci cards, and I thought I knew about pcs. Thanks for all the help.