Memory won't POST in two different mobo

Phunky

Phunky

Phunky

Associate
Joined
19 May 2003
Posts
1,396
Location
Saltaire, West Yorkshire
System in my sig has been working fine for a while until I decided to get a new mobo this week. Setup the new mobo and bang not booting, after various messing around it looked to be the PSU.

I did eventually get it to boot and run stable for 24hrs until I played my first game and within a min it totally died and wouldn't boot at all and I started to get memory errors for the first time.

Today I went ahead an rebuilt with my old board just to make sure PSU hadn't died and straight away mobo won't boot, just getting a constant beep from bios speaker and then restart.

Either stick will boot to BIOS fine in first slot, but neither will boot with two in or with one of them in the second slot.

Really banging my head against the wall here, has the new mobo killed the ram? Is the PSU still the source of the problem?
 
What new mb did you get? Have you left the cmos battery out a good 30minutes and then try? Running latest mb BIOS?
 
New mobo is a asus p8z77-v deluxe and has POST fine, just as I was testing PSU out I started to get memory errors.

Now the same RAM won't post at all in my Gigabyte GA-Z68A-D3-B3, can get it into BIOS when running a single DIMM on Channel B but first slot in Channel A just beeps.

Just going to take heat sink off so I can get at other Channel A slot.
 
If it works fine with either stick in one of the slots then the ram should be fine? Usually if it won't boot from some of the ram slots it points to overtightened CPU heatsink/cooler or bent CPU socket pins,havnt come across faulty psu causing ram slot problems

Could try running memtest86 on one stick at a time in a known working slot
 
Well the ASUS was a untested return which over the cause of the week i've been running in circles trying to figure out if it was damage or not, wonder if it has damage my kit.

Wouldn't have thought it would but...
 
So hooked up the ASUS again as get better error reporting. DIMM_A1 and DIMM_A2 won't POST at all, but DIMM_B1 and DIMM_B2 are fine.

Ran both sticks through ASUS memok check and both come back fine while in either channel b.

I'm really stumped, but one thing thats got me thinking now is that I did overclock this CPU in the ASUS while I had it vaguely stable, had it running at 5ghz at one point at low volts 1.37~1.44. Now in all my years of overclocking i've never killed a chip and don't think I have now, but could it be related?!

I mean memory controller is on the cpu now isnt it?
 
With both boards having problems with the same DIMMS I'm really starting to think that CPU might be damaged
 
So my options are;

1. Buy new PSU
2. Buy new RAM
3. Buy new CPU
4. Throw it all in the canal

Each will need to be tested in both mobo in the hope to find the actual problem.
 
It's gotta be the CPU (or at least it's now the CPU & PSU) as A1 & A2 DIMMs in both mobo won't work.

I can't see any bent pins on either mobo so suspecting the pads on the CPU may have been damaged by my cooler, it is quite easy to over tighten and i've taken it on an off a lot this week.
 
Went out and bought a i5 3570k this afternoon and just tested it in the ASUS and Gigabyte again, the Gigabyte still went crazy with the ram error but not sure if that could be down to bios not picking up the ivy bridge cpu.

However the ASUS booted fine with the retail cooler and ram was fine in all DIMMs so at least I know that's fine, wonder if the pins for the memory controller are in diff places between the two chipsets or if I just killed the 2500k when overclocking.

Will build with retail cooler and 3570k and see how the ASUS does, no overclocking for a while though if it all boots.
 
you need latest uefi bios to run ivybrige cpu's on gigabyte z68

somethings up somewhere its hard to say if its cpu/mb
 
Already on the UEFI so expected it to work, also old PSU is fine with the new CPU (or seems to be).

I wonder if I just killed the 2500k with all the moving about during testing.
 
is the underside of the 2500k clean? all the gold pads and checked the gigabyte cpu socket to make 100% sure no bent pins
 
Yeah it looks visually fine and neither board looks to have bent pins from what I can see. If it did wouldn't the 3570k have same problem?
 
You must log in or register to reply here.
Back
Top Bottom