For some reason, RAM stopped working?

Question

Do it yourself

I have the following:
power supply XILENCE XP480 (ATX 12V 2.2)

motherboard GA-G33M-S2L

memory 4 lines GEIL 1GB PC2-6400 DDR2-8000 CL 4.4.4.12 (GX22GB6400UDC 2.1V

) it doesn’t matter anymore)
It all works together for four years (the first three years there was 2GB of memory and a year ago I added another 2GB, the memory is completely identical to the last molecule)
Now an incomprehensible trick has begun: when all four lines of memory are inserted, the computer starts up (not Windows attention!), it is the computer - the fans start spinning, the light on the grid lights up and all that. After one or two seconds, it completely turns off and there is a second of deathly silence. Then it tries to turn on again, but again for a second or two. And so on in a circle endlessly.
As for vacuuming - I ask you not to waste time on such advice - in this regard, everything is fine, regularly and preventively. This is the order in my house both inside and outside the computer.
Next, I turned off all the drives, leaving only the processor. Starts up.
If you add 4 lines of memory - it will not start.
If you put 1 line, any (important: any ) in any (important: any ) slot, then everything works.
If you put 1 pair, any , on any channel (yes, on any, at least on the first, at least on the second, at least on yellow, at least on red), then it works.
I started 16 different variants with one line and 12 variants with two lines on two channels. All this started. Connecting a CD and / or HDD also did not bring any effects.
There is always one and the same sign - it does not start with four rulers .
I do not know who is to blame for this - the motherboard or the power supply?
Friends, give me good advice - how to proceed?
It is desirable to spend as little as possible.
Thank you.
P.S. I forgot to write right away - there are alarming symptoms in my memory: holographic stickers warped from heating, is this bad? the voltage monitor in the BIOS shows the value RAM1.8V = 1.935V (but I don’t find such a drop something extraordinary, usually all voltages are slightly overestimated)

Answer 1

A guess can be checked using elementary electrical measuring equipment.

Answer 2

Generally speaking, you do not have enough food. The nominal voltage for your memory modules is 2.0V. www.geil.com.tw/products/showSpec/id/65
Speaker connected? What is beeping?

Answer 3

There is a suspicion that the motherboard is still to blame, apparently, it does not want to work in dual-channel mode. If you want to find out the reason by the method of scientific shamanism, then there are several obvious options.
For starters, you can try resetting the BIOS settings to default, if that doesn’t help, then update the BIOS.
If after the previous manipulations the motherboard is still alive and there is an opportunity, you can try to stick other 4 suitable bars, or stick your 4 bars into another motherboard.

Answer 4

By the way, if the conders on the motherboard are to blame, it should be remembered that a dying / bad power supply unit spoils the motherboard (namely the conders), in which case its replacement or repair will be enough for about six months.
You can check by trying another PSU - if it fails _less_, then the PSU is also partially to blame.
Another option in principle is to send the cooler to the bridges, it can overheat with such a memory voltage (I have it on one of the computers - 2.1 volts ddr2, 4 bars, two different asus boards - it works with the cooler like a clock passes all tests, without a cooler it is buggy) .
It's easy to check - the finger must withstand the temperature of the bridge under load.

Answer 5

Just the other day, I encountered a glitch almost one-on-one on a Gigabyte motherboard (though MiniITX on Socket-1155). The change of the power supply helped (it was new with the case, but defective).

Answer 6

I have exactly the same problem one to one with the same motherboard. How did the story end?