[Solved] PC doesn't boot. P8P67 Mobo shows error LEDs lit. What to do? :(

On switching on my PC, I found that it is not going beyond the "checking for disks..." screen (can't remember properly, but I know it's followed by a message saying "Maxwell controller etc etc which didn't appear this time)
The screen froze or never moved beyond this point.
On checking my PC cabinet, everything seems to be working fine. But a red LED was lit. On checking the "manual" it happened to be the BOOT_DEVICE_LED
Motherboard is an Asus P8P67 Pro

I waited for a couple of minutes and then restarted my PC. It took a few seconds to restart, which I felt more than normal. But now, nothing appears on the monitor. There is absolutely no video input. Also the LED that was lit before is off this time. Now a new LED is lit which is the DRAM_LED at the top right corner. The remaining CPU_LED, VGA_LED and the BOOT_DEVICE_LED are not lit.

In short sequence of events.

Switched PC on > No boot > BOOT_DEVICE_LED lit indicating error > Restarted PC > No video to monitor > DRAM_LED lit , error (no other LEDs lit) > No progress for 10mins

Help!

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~ last time I used the PC was an hour ago today
~ PC is always connected to the UPS and never used without it
~ Never opened the cabinet or changed anything intenally

My PC config:

NO DESCRIPTION MAKE & MODEL UNIT PRICE
1 PROCESSOR INTEL CORE i5 2500k 10395
2 MOTHERBOARD ASUS P8P67 PRO 12600
3 RAM G-SKILL RIPJAWS F3-12800CL9S-4GBRL 2625
4 GRAPHIC CARD SAPPHIRE HD6970 2GB 21000
5 HDD SEAGATE 1TB 7200.12 RPM 2625
6 DVD WRITTER SAMSUNG 22X SATA DVD 945
7 PSU COSAIR GS700 6300
8 CASE NZXT TEMPEST EVO 6300
9 MONITOR DELL ULTRASHARP U2311H 14323
10 MOUSE RAZER IMPERATOR 3150
11 KEYBOARD RAZER ARCTOSA 2158
12 MOUSE PAD STEELSERIES QCK 800
13 UPS APC 1.1KV 4500

Turn off. Press the MemOK! button near your RAM slots.

Problem is with SATA controller.
You may try to:
1. Clear CMOS.
2. MemOK.
3. Restart.

If nothing happens, then follow the same sequence by plugging out all SATA cables, and then add only HDD.

I have completely turned off the PC and disconnected it from the UPS.

Will Pressing the memOK button work now or should I connect it to the power socket and do it?

Thanks for your responses

Sarath said:
I have completely turned off the PC and disconnected it from the UPS.

Will Pressing the memOK button work now or should I connect it to the power socket and do it?

Thanks for your responses

Computer turned off and connected to the power socket with power flowing into the motherboard.

Sarath said:
I have completely turned off the PC and disconnected it from the UPS.

Will Pressing the memOK button work now or should I connect it to the power socket and do it?

Thanks for your responses

No. Switch on UPS but not the PC.

edit: same response as of ico. page caching time problem.

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Ok I checked online. I pressed the MemOK button till the PC powered up.
It started with the DRAM LEDs flashing but soon powered down.
It restarted itself again and now it is back to how I had described earlier. DRAM led perpetually on and the CPU fan speed increasing and decreasing on its own. Now the fan speed is pretty much stable.

What to do?

hmm.

Try shifting the RAM to another slot. Plus, a CMOS reset like d6bmg had suggested.

I am still searching for the CMOS switch

physically and even online. Anyone know's where it is?

^^

*i.imgur.com/DI0DU.gif

*i1213.photobucket.com/albums/cc480/sarathmay3/Snapbucket/B57ECFBE-orig.jpg

Thanks for that ico. I had the manual in hand but was stuck at the 3 switches at 2.2.5 section

So what happened after resetting CMOS?

^ I am about to start the PC. It says press "DEL" to enter BIOS and enter data. Is it necessary?

Sarath said:
^ I am about to start the PC. It says press "DEL" to enter BIOS and enter data. Is it necessary?

nope.

But I suggested going into BIOS and loading Failsafe Defaults.

Still the same. No improvement. I will try changing the RAM into a different slot.

Thanks a lot guys.

I will have to wait for another half hour to do that

Hope this goes well.

If nothing helps out. Next step would be to get a DDR3 RAM stick from someone and try it out. Plus, also try your RAm stick in someone else's computer.

It's working.

Solution: Remove the RAM stick and put it back

Thanks ico and d6bmg for your help.

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Strange why this happened though

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Alls well that ends well

Good day

Solved.

lol, really simple. :mrgreen:

Congrats!!

Possible reason: problem with BIOS flash memory which is solved via reseting bios+ removing RAM modules.

one question...did u used a 1.65v ram stick before? on the same setup?
the symptom is peculiar to that..
glad its working though...

sumonpathak said:
one question...did u used a 1.65v ram stick before? on the same setup?
the symptom is peculiar to that..
glad its working though...

I've never changed anything inside of my PC before. I have no reason why it spontaneously occured. Like I said, I had used the PC just an hour before this problem occured.

Steps I did:

Press & Hold MemOK switch
Reset CMOS jumper
Refit the RAM in the same spot

Solved

hmm...guess the board decided to throw a tantrum