Unsolved
1 Rookie
•
17 Posts
0
263
February 16th, 2024 16:11
How to find bad memory stick on a 7920T with 8 32 GB RAM sticks?
The machine randomnly dies. I tried running the diagnostics and it would just hang on the memory test phase. Sometime it would pass, and the machine would work fine for a few weeks before randomnly crashing. So I assume I have a bad memory stick? Can I just remove one at a time to find the bad one? Or should I remove half of them to narrow it down? I checked here and seems I can not find any 128GB Ram configuration for 32 GB sticks:
No Events found!
JOcean
9 Legend
•
12.6K Posts
0
February 16th, 2024 19:54
You could try one at a time but I would suggest you download and run Memtest86 available here. Even 1 fail during the test indicates a bad RAM module.
segmentation_fault
1 Rookie
•
17 Posts
0
February 16th, 2024 21:45
@JOcean If I remove one at a time do I need to swap with a good RAM stick? At this time I don't have a spare RAM stick. Will it still boot OK with a missing RAM stick? I have tried and get 4 flashing white lights and 2 flashing amber lights , which indicates "Memory/RAM failure". But not sure if the error is due to missing memory stick or the bad RAM or both...
me.myself.i
2 Intern
•
135 Posts
0
February 16th, 2024 22:22
Your 7920 should be able to boot with a single stick in DIMM1_CPU1. My 7910 does. This way there can be no confusion. Try it!
(edited)
segmentation_fault
1 Rookie
•
17 Posts
0
February 16th, 2024 22:44
Ok, I will try with just one memory stick at a time. Presently it is quite a nuisance to deal with the shard, fan pin and graphics card each time I change the memory sticks. Wondering if I can leave all that unplugged ? Or will the machine not boot with the shard FAN disconnected?
me.myself.i
2 Intern
•
135 Posts
0
February 16th, 2024 23:20
The only way to find out is to try it but be cautious because the fans are there to keep the temperature down. Do not run the computer for a prolonged period without fans! If a stick is good, shut down and try the next until you find the faulty one.
It is also possible, that your sticks are not seated properly. They may simply need to be swapped around and re-seated.
segmentation_fault
1 Rookie
•
17 Posts
0
June 18th, 2024 19:02
I was able to find the bad memory stick by placing them one at a time into DIMM1_CPU0 . DIMM1_CPU1 it would not boot. I had to replace the fan shroud and cover , otherwise it would not boot as well. But overall the process was fairly simple. Took around 10-20 minutes to test each of the memory sticks . The bad one just hung on the memory test. I had to hit F12/escape when I saw the Dell logo on bootup. Then I went to "Diagnostics". Then I hit escape to cancel the full test and just do the memory test. There was option to do "Thorough test" but I did not do that.