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Asrock Fatal1ty Z77 Professional-M issues after cpu swap. SOLVED after almost a year of sitting... was throwing Code 55 for memory.

post #1 of 22
Thread Starter 
So I have had this pc working flawlessly for about a year now running the 3570k and after i swapped the cpu out for the 2500k for another build, i keep getting a reboot with a code 55 on the debug led. The code is for memory not installed. I have cleared the cmos both with the back button by the I/O and removed the cmos battery for about 30 minutes, still the same story. code 55.
I have removed the memory and tried eash of the 2 sticks in dimm 0 and dimm 2. Same thing. I have NOT tested other memory yet but i dont think it will change anything. was working flawlessly with the 3570k cpu in there and now suddenly wont work with a sandy bridge 2500k. any ideas? anyone have any quick thing that may solve this finicky asrock board's issues? Thanks.

System Specs:
asrock Fatal1ty Z77 Professional-M
intel i5 2500k
gtx 650ti power edition
8gb (2x4GB) crucial low profile ram 1600
samsung 120gb ssd
lian li pc-c37 case, modified.
cooler master 700w silent pro modular power supply
tuniq tower cpu cooler.

A picture of the beast below if you care to see. Warning: Spoiler! (Click to show)
post #2 of 22
Have you updated the motherboard BIOS? (Not really sure if it's because of the BIOS being old that it doesn't support older BIOS).

Also check if any of the CPU pins look bent.
Gaming Computer
(19 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 Asustek P5Q-PRO Nvidia 9800 GTX+ Kingston DDR2 8gb 
Hard DriveOptical DriveCoolingOS
Western Digital 1 TB Pioneer Noctua NH-U9B Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Dell Monitor Logitech G110 Antec 750W Thermaltake Aluminium Old Case 
MouseMouse PadAudio
Logitech G500 Gaming Mouse Generic Mousepad Soundblaster 5.1 VX 
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Gaming Computer
(19 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 Asustek P5Q-PRO Nvidia 9800 GTX+ Kingston DDR2 8gb 
Hard DriveOptical DriveCoolingOS
Western Digital 1 TB Pioneer Noctua NH-U9B Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Dell Monitor Logitech G110 Antec 750W Thermaltake Aluminium Old Case 
MouseMouse PadAudio
Logitech G500 Gaming Mouse Generic Mousepad Soundblaster 5.1 VX 
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post #3 of 22
Thread Starter 
Quote:
Originally Posted by benjamen50 View Post

Have you updated the motherboard BIOS? (Not really sure if it's because of the BIOS being old that it doesn't support older BIOS).

Also check if any of the CPU pins look bent.

The bios was updated about 4 months ago because the board randomly stopped working with the 650ti, or frankly any gpu i wanted to put in it. so i then updated the bios using onboard graphics then everything worked.

I checked for bent pins, none. then i noticed the cpu cooler backplate seemed like it may have been making contact with some of the back of the square chokes. i used some washers of appropriate size to elevate the plate off of the back of the board more but this did not help at all either.
I tried a known working 4gb stick of memory and i get the same code 55. I am fearing the motherboard may have spontaneously gone bad for no reason.
post #4 of 22
If your memory is overclock the new cpu vtt might need bump in v. The memory control is on the chip and not the motherboard.
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k 4.5GHZ 1.33Vcore Asus P8P67 Deluxe B3 GIGABYTE 570 GTX 13I Rev2 G Skill 1600 2x2 set 
Hard DriveCoolingOSMonitor
kingston hyperx 3k  xspc rs 240 kit windows 7 64bit 22" viewsomic hd led 
Power
Seasonic x750 
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My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k 4.5GHZ 1.33Vcore Asus P8P67 Deluxe B3 GIGABYTE 570 GTX 13I Rev2 G Skill 1600 2x2 set 
Hard DriveCoolingOSMonitor
kingston hyperx 3k  xspc rs 240 kit windows 7 64bit 22" viewsomic hd led 
Power
Seasonic x750 
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post #5 of 22
Thread Starter 
Quote:
Originally Posted by beetlespin View Post

If your memory is overclock the new cpu vtt might need bump in v. The memory control is on the chip and not the motherboard.
memory was only clocked at 1333 or 1600, not sure which. plus resetting the cmos that i have already done should have reverted everything back to defaults.

I have also tried another power supply and results are the same.
post #6 of 22
Quote:
Originally Posted by XanderTheGoober View Post

memory was only clocked at 1333 or 1600, not sure which. plus resetting the cmos that i have already done should have reverted everything back to defaults.

I have also tried another power supply and results are the same.

If everything is same but the chip it got to be Memory control on chip. You can also pull 1 ram out and try boot it up. If it boots manually set ram settings and then try both. If it boots with 1 ram stick only, Then bump up the vtt little bit and try second one again. If still does not work change the one ram out with the other.
Edited by beetlespin - 4/14/14 at 6:38am
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k 4.5GHZ 1.33Vcore Asus P8P67 Deluxe B3 GIGABYTE 570 GTX 13I Rev2 G Skill 1600 2x2 set 
Hard DriveCoolingOSMonitor
kingston hyperx 3k  xspc rs 240 kit windows 7 64bit 22" viewsomic hd led 
Power
Seasonic x750 
  hide details  
Reply
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k 4.5GHZ 1.33Vcore Asus P8P67 Deluxe B3 GIGABYTE 570 GTX 13I Rev2 G Skill 1600 2x2 set 
Hard DriveCoolingOSMonitor
kingston hyperx 3k  xspc rs 240 kit windows 7 64bit 22" viewsomic hd led 
Power
Seasonic x750 
  hide details  
Reply
post #7 of 22
Thread Starter 
Quote:
Originally Posted by beetlespin View Post

If everything is same but the chip it got to be Memory control on chip. You can also pull 1 ram out and try boot it up. If it boots manually set ram settings and then try both. If it boots with 1 ram stick only, Then bump up the vtt little bit and try second one again. If still does not work change the one ram out with the other.

I have tried 1 ram stick, nothing. even tried a generic stick i had laying around that has been in a machine running 24/7 for 6 months solid. even that stick did not work. my only idea here is to borrow an ivy bridge from someone and try and boot it up to revert everything manual, or at the very least verify that the motherboard didn't randomly crap out
post #8 of 22
Thread Starter 
Quick update, i managed to get into the bios using a corsair 4gb stick of 1600mhz ram that was rated at 1.5v but it would only load in the dimm closest to the 24pin power connector. i changed the vtt to 1.355 and the crucial stick rated at 1.35v booted, but again only in the dimm closest to the 24pin, i tried the other 3 and still got code 55.
there was no option for 1.350 in the bios, only 1.345 and 1.355. i am a memory settings noob. i just select 1066, 1333, 1600, etc when it comes to memory clocking in bios.
so because none of the sticks will let me into bios in first 3 slots does anyone have any suggestions that dictate the memory dimms are not shot? I am already on the latest bios for the motherboard p2.00

Edit: i managed to get it to boot with one of the crucial sticks, but AGAIN only in the dimm closest to the 24pin power. I set the xmp profile to 1 which is 1333 at 1.35V to match the rams voltage. It boots into the bios again using that memory profile.
holy crap! i just got it to boot with sticks in dimms 3 and 4. WOW! ok time to try other dimms again for no apparent reason other then to try i and hopefully work.
everyone remembers the definition of insanity right? :doing the same thing over and over expecting different results. kinda how i feel right now.
Edited by XanderTheGoober - 4/14/14 at 4:01pm
post #9 of 22
Thread Starter 
ok pretty much back to square 1. nothing absolutely NOTHING works on the first 2 dimms, always code 55. got the corsair stick to boot to bios on dimm 3. So tempted to chuck this 2500k out the damn window and get an ivy bridge so i dont have to deal with this bs anymore. thing is i have to make sure the board isn't bad before i chuck a $200 cpu. and then buy ANOTHER $200 cpu. Dang it.. Warning: Spoiler! (Click to show)
G44
post #10 of 22
Thread Starter 
At this point in time i think the motherboard is toast. I swapped the 3570k back into it and ram performance, or lack there of, was the same. with the 3570k cpu in it i flashed the bios from 2.0 to 1.9 just to see if it helped.
Nope.
I'm out of ideas to try on my own. if anyone has any intelligent suggestions please do share. I'm about to put a few bullets through this board..
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  • Asrock Fatal1ty Z77 Professional-M issues after cpu swap. SOLVED after almost a year of sitting... was throwing Code 55 for memory.
Overclock.net › Forums › Intel › Intel Motherboards › Asrock Fatal1ty Z77 Professional-M issues after cpu swap. SOLVED after almost a year of sitting... was throwing Code 55 for memory.