BSOD - IRQL not less or equal, Page fault, Memory Management, etc.

Layback Bear · 12 Nov 2012

Thank you for the information Slartybart. I just don't really care to jump through 30 post looking for them then wright them down so I can see them when needed.
You all have a nice day.

Slartybart · 12 Nov 2012

And here's what Crucial says:

Memory Type: DDR3 PC3-8500, DDR3 PC3-12800, DDR3 PC3-10600, DDR3 (non-ECC)
Maximum Memory: 8GB
Slots: 4
Each memory slot can hold DDR3 PC3-8500, DDR3 PC3-12800, DDR3 PC3-10600 with a maximum of 2GB per slot.

I expected you to look at the information provided and determine that you have the worng memory in slots 1 & 3 (PC3 -10700)

I would try to return it and get the correct memory (one of the supported in the list above.

If you go with PC3-8500, that will match the stick currently in slot 2 (wich should be moved to slot 4) or if you want to upgrade, you should buy 2 pairs of the same.

Currently in teh machine (per Speccy)

All DDR3, all 2 GB

Slot 1: PC3-10700 (667 MHz) - Hyundai Electronics P/N: HMT125U6BFR8C-H9
Slot 2: PC3-8500F (533 MHz) - Apacer Technology P/N: 78.A1GC3.9L1
Slot 3: PC3-10700 (667 MHz) - Hyundai Electronics P/N: HMT125U6BFR8C-H9
Slot 4: EMPTY

What I tried to convey, and Layback filled in, was that you have to pair your memory or install it in a certain order. I think Layback infered that you have to have 2 pairs, but I'm not going back to look - it takes me long enough to post something =:>

I've seen boards that allow 3 sticks, but again they have to be in the correct slot. I'm not saying this will work on your board, but if I recall correctly

Slot 1 & 3 get the two sticks that match
Slot 4 gets the odd one

It won't hurt to try
Slot 1: PC3-10700 (667 MHz) - Hyundai Electronics P/N: HMT125U6BFR8C-H9
Slot 2: EMPTY
Slot 3: PC3-10700 (667 MHz) - Hyundai Electronics P/N: HMT125U6BFR8C-H9
Slot 4: PC3-8500F (533 MHz) - Apacer Technology P/N: 78.A1GC3.9L1

Unmatched memory degrades the system, but it should work.

If we could find the mobo manual we would know for sure. Neither Layback or I could find it. Did you happen to check your favorites?

Switch the sticks as I suggested and see what you get. Is all 6 GB recognized?
Hopefully you'kll be able to return the memory and acquire the correct type.

Good luck

Bill
.

PhonicStudios · 13 Nov 2012

Hello guys, great help, much much appreciated.

Unfortunately, I do not have any manual or so, as I inherited this PC from my passed away uncle..
and he had it for about 2 years already, we didnt find any manuals at his home..

Anyway, how would I recognize what slot is what number?

or just from the back of the computer to the front (left to right in my case)

Oh and I would just like to say that the RAM has worked before, perfectly.. all 4 sticks in all 4 slots, but I guess it just degraded or something..

I'll go test out now.

Dave76 · 13 Nov 2012

Good advice so far, I found the manual on the Dutch site, in english, but completely useless. Typical Acer manual.
RAM can and does go bad, it also can be a motherboard slot or the PSU going bad.
How old is the computer?

I'll just confirm what's been said already.
Take the Apacer RAM out, it's only 1066MHz, the Hyundai RAM is 1333MHz. The system will run the RAM at the slowest RAM card level, 1066MHZ.
With three RAM cards installed it will only run in single channel mode, which is much slower than dual channel mode. The issues with RAM being recognized indicates that the motherboard BIOS will only run with 2 or 4 RAM cards. Typical OEM BIOS.

You need to find the correct two slots to put the RAM in, easiest way without a manual is to put the two RAM cards in slots 1&3, counting from the CPU.
Boot up, if it will, open CPUZ > Memory tab, check if it says 'Dual' in the 'Channel #' box.
If it says 'Single', shut down, disconnect power, change the RAM to slots 1&2, check CPUZ again for 'Dual' in the channel box.
Even with slot 4 being suspect, try in slots 2&4.
You may need to move the RAM in different slots until you get it in dual channel mode.

PhonicStudios · 13 Nov 2012

Okay, well before I read your thread, as I just rebooted..
doing it like so:
Slot1: blue
Slot2: empty
Slot3: blue
Slot4: green

(basing on the colours of the sticks :P) It just kept restarting my computer when going to the 'windows loading' screen (where the animation of the windows logo appears)

so now i did
slot1: blue
slot2: blue
slot3: blue
slot4: empty

having the odd one out, but apparently its still 4GB and single-channel
heres the ram section of speccy report currently:

Code:

RAM
		Memory slots
			Total memory slots	4
			Used memory slots	2
			Free memory slots	2
		Memory
			Type	DDR3
			Size	6144 MBytes
			Channels #	Single
			DRAM Frequency	665.0 MHz
			CAS# Latency (CL)	9 clocks
			RAS# to CAS# Delay (tRCD)	9 clocks
			RAS# Precharge (tRP)	9 clocks
			Cycle Time (tRAS)	24 clocks
			Command Rate (CR)	2T
		Physical Memory
			Memory Usage	47 %
			Total Physical	3.96 GB
			Available Physical	2.07 GB
			Total Virtual	7.92 GB
			Available Virtual	5.63 GB
		SPD
			Number Of SPD Modules	3
				Slot #1
					Type	DDR3
					Size	2048 MBytes
					Manufacturer	Hyundai Electronics
					Max Bandwidth	PC3-10700 (667 MHz)
					Part Number	HMT125U6BFR8C-H9
					Serial Number	11407755
					Week/year	36 / 09
					SPD Ext.	EPP
						JEDEC #4
							Frequency	685.7 MHz
							CAS# Latency	9.0
							RAS# To CAS#	9
							RAS# Precharge	9
							tRAS	25
							tRC	34
							Voltage	1.500 V
						JEDEC #3
							Frequency	609.5 MHz
							CAS# Latency	8.0
							RAS# To CAS#	8
							RAS# Precharge	8
							tRAS	22
							tRC	30
							Voltage	1.500 V
						JEDEC #2
							Frequency	533.3 MHz
							CAS# Latency	7.0
							RAS# To CAS#	7
							RAS# Precharge	7
							tRAS	20
							tRC	27
							Voltage	1.500 V
						JEDEC #1
							Frequency	457.1 MHz
							CAS# Latency	6.0
							RAS# To CAS#	6
							RAS# Precharge	6
							tRAS	17
							tRC	23
							Voltage	1.500 V
				Slot #2
					Type	DDR3
					Size	2048 MBytes
					Manufacturer	Hyundai Electronics
					Max Bandwidth	PC3-10700 (667 MHz)
					Part Number	HMT125U6BFR8C-H9
					Serial Number	1130776D
					Week/year	36 / 09
					SPD Ext.	EPP
						JEDEC #4
							Frequency	685.7 MHz
							CAS# Latency	9.0
							RAS# To CAS#	9
							RAS# Precharge	9
							tRAS	25
							tRC	34
							Voltage	1.500 V
						JEDEC #3
							Frequency	609.5 MHz
							CAS# Latency	8.0
							RAS# To CAS#	8
							RAS# Precharge	8
							tRAS	22
							tRC	30
							Voltage	1.500 V
						JEDEC #2
							Frequency	533.3 MHz
							CAS# Latency	7.0
							RAS# To CAS#	7
							RAS# Precharge	7
							tRAS	20
							tRC	27
							Voltage	1.500 V
						JEDEC #1
							Frequency	457.1 MHz
							CAS# Latency	6.0
							RAS# To CAS#	6
							RAS# Precharge	6
							tRAS	17
							tRC	23
							Voltage	1.500 V
				Slot #3
					Type	DDR3
					Size	2048 MBytes
					Manufacturer	Hyundai Electronics
					Max Bandwidth	PC3-10700 (667 MHz)
					Part Number	HMT125U6BFR8C-H9
					Serial Number	11907763
					Week/year	36 / 09
					SPD Ext.	EPP
						JEDEC #4
							Frequency	685.7 MHz
							CAS# Latency	9.0
							RAS# To CAS#	9
							RAS# Precharge	9
							tRAS	25
							tRC	34
							Voltage	1.500 V
						JEDEC #3
							Frequency	609.5 MHz
							CAS# Latency	8.0
							RAS# To CAS#	8
							RAS# Precharge	8
							tRAS	22
							tRC	30
							Voltage	1.500 V
						JEDEC #2
							Frequency	533.3 MHz
							CAS# Latency	7.0
							RAS# To CAS#	7
							RAS# Precharge	7
							tRAS	20
							tRC	27
							Voltage	1.500 V
						JEDEC #1
							Frequency	457.1 MHz
							CAS# Latency	6.0
							RAS# To CAS#	6
							RAS# Precharge	6
							tRAS	17
							tRC	23
							Voltage	1.500 V

Any clue why my computer wont boot when doing it the way Slarty told me?

I will now try to find the duel channel mode as Dave76 suggests...
also Dave, we suspect the computer is from 2009, don't know where it was bought..
although a supermarket (Aldi) sells computers like these, but usually worse specs, plus my uncle liked to modify computers, to make them faster...

Off to find the dual mode.

Dave76 · 13 Nov 2012

Be sure to take out the Apacer RAM card, it should have different markings on it somewhere.
Maybe it's the green one.
The blue cards must all be Hyundai, as your last post shows.

Just test with 2 RAM cards, once it's stable we can test with the other cards.

PhonicStudios · 13 Nov 2012

Yea uhhm, I think slot 2 and 4 are broken...
I tried filling 1-3 with the hyundai cards, my computer made a constant and loud beep, and didnt respond..
now, 2-3 hyundai cards, and no beep but only 2GB ram..
It also says only 1 slot is used :s

so slot 2 and 4 are broken in different ways..
slot 2 just doesn't recognize RAM apparently..
and slot 4 wont allow me to boot my computer

If I test 1-2-3 it will show 4 gigabyte, anytime filling slot 4 results in not being able to boot my computer..

any (low budget if neccesary) tips?
I was saving money for a new videocard :/

Dave76 · 13 Nov 2012

Usually if the RAM won't run on two slots, 2&4, it's a channel problem.
The IMC (Integrated Memory Controller, which is part of the CPU) is having trouble running.
When you put the RAM in slots 1&3, leaving 2&4 empty, does CPUZ Memory tab show dual or single channel?
Try putting one hyundai RAM card in slot 1, check if it will boot.
Then in slot 2, check if it will boot, continue with one card in slot 3 and then slot 4.

The possibilities are bad motherboard.

PhonicStudios · 13 Nov 2012

Before reading your comment, I decided to put a hyundai ram card in just slot 2, and it works.. so maybe slot 3 and 4 are the problem, and not 2 and 4.. i will try slot 1 next, after that slot 3, and 4.. although I am concerned that i will get the beeping again if none card is in slot 2

we'll see.

edit2: This computer is killing me (not literally)... but I found a pattern..
slot 2 work, slot 4 works (WTF?) as I currently type, the only ram card i have is on slot 4.. oh and oops.. it happens to be the apacher card.. ill replace the apacher card with a hyundai one.. test again, if works.. ill test 2 and 4.. if that works, ill add 1 or 3 aswell..

but i found a pattern of some reason

the uhhm.. I am not sure how to say this but the things to secure the RAM card (so it wont simply fall out of ur computer), in slot 1 and 3 are white, slot 2 and 4 are black....

results of using 1 ram stick (apacher atm (sorry my mistake) ):

slot1(white) = BEEP
slot2(black) = work
slot3(white) = BEEP
slot4(black) = work

So I think the black ones are neccesary for your computer..
I'll come back with more test results in ~10 minutes

Dave76 · 13 Nov 2012

Good point, should have mentioned the colored slot before, if using two RAM cards they should be in the same colored slots, this should be dual channel mode.

When testing RAM, you are tsting for bad RAM cards and bad slots.
If a RAM card fails, beeps, in a slot then try another RAM card in that same slot.
Some motherboards won't run with only one RAM card in certain slots, to check this put two RAM cards in slots 1&3.
Then put two RAM cards in slots 2&4.
Also if a RAM card fails, beeps, in slot 1, test it in slot 2.
You will need to test all RAM cards in a known good slot, in your case it looks like slot 2 or 4.