Mem Error

snips86x · 8 Jan 2014 at 20:12

I've just installed a H100i and on starting my PC back up, I'm getting an diagnostics code of 45.

According to the AsRock website, this is relative to the memory.

A1 Single Channel fails to boot
A2 Single Channel fails to boot
B1 single channel boots fine
B2 single channel, untested

Dual channel doesnt seem to work, will try alternative combinations.

Memory in question is Patriot Blue 4x4gb

Why would this suddenly start playing up when I've only changed a cooler?

snips86x · 8 Jan 2014 at 20:21

stulid said:
You may have over tightened something thus bending the board slightly causing the cpu socket pins to make a poor contact?

Or you have knocked something out of place?

No, I've double check everything. It's like only 1 bank is working.

I've managed to get B1 & B2 to work giving me 8gb.

Is this type of memory fussy if paired with the "wrong" module?

snips86x · 8 Jan 2014 at 20:30

stulid said:
You didnt remove the RAM when you fitted the cooler? if you didnt then it really should just continue work as it was before.

No! I removed the old one and fitted the new one. Switched it on and this.

All RAM modules work, but only in slots B1 and B2. It's like A1 & 2 are dead. Is this even possible?

I have loosened the fittings and tightened to finger tight, but it remains the same.

snips86x · 8 Jan 2014 at 20:34

No, dust was the first thing I checked.

Bent pins? I never touched the CPU, just the cooler.

snips86x · 8 Jan 2014 at 20:36

Same results!

snips86x · 8 Jan 2014 at 20:38

stulid said:
Check the socket pins.

On the RAM or CPU?

snips86x · 8 Jan 2014 at 20:40

Would changing the CPU cooler give enough pressure to cause that to happen?

snips86x · 8 Jan 2014 at 21:04

Ok, I'll check it and the cooler fittings tomorrow.

For the mean time, it's working with 8gb in single channel. Not ideal, but it works.

snips86x · 9 Jan 2014 at 06:20

stulid said:
I have seen posts before where,

• A person has fitted a cooler and all of a sudden the PC is FUBAR, with some careful loosening of the cooler it has been resolved.

• Someone has made a new PC or fitted a cooler and are adamant they were super careful when fitting the CPU/Cooler yet somehow the pins are FUBAR.

wazza300 said:
Flexing of the mb also causes it,if you've pressed down on it too hard,installing fan/cpu cooler pushpins or ram modules ect

Can gently pull it up/down (slightly) from an installed ram stick then try

Again only apply light force

I have completed the following:

Removed cooler retention bracket & CPU
Inspected CPU pins, no damage
Re-fitted backplate finger tight
BIOS update, failed also, additional slots still fail

I'm now convinced that it must be physical but not sure where to look. I was so careful when replacing the cooler, there was no pressure on the board to cause it to bend/move.

Any more suggestions? I have a feeling I'm going to have to live with it.

snips86x · 9 Jan 2014 at 13:23

wazza300 said:
could try for rma?

did you pull up/down slightly to flex the board then try? not too much tho

This board is old mate, I got it from the MM about 4-5 months go. Doubt there would be any warranty left on it.

It still works so could sell it I guess.

snips86x · 9 Jan 2014 at 15:15

stulid said:
Build the rig outside the case on some cardboard?

A pain I know but hey..may work.

That was my next thought, one I was trying to avoid.

If I have enough time at the weekend, I'll give it a try. I've been looking to downgrade to a smaller setup anyway, but this was not the kick start I wanted.