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3 Apprentice

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440 Posts

35

May 17th, 2024 04:43

T7920 Memory Upgrade

I am currently running 128GB 2933MHz memory (8x16GB) and decided since I have 4 more slots free, I purchased anther 4x16GB, identical to what is already installed.
Now on start up the system will not post, they are all configurated in the correct DIMM slots.
The only difference between current and new is different manufacture dates.
Is there something I need to change in the BIOS, running latest BIOS by the way.

CPU0 DIMM 2,4,6,5,3,1
CPU1 DIMM 1,3,5,6,4,2

Help!!

5 Practitioner

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5.9K Posts

May 17th, 2024 05:04

Some users reported that a CMOS reset (via blue jumper) did helped.

(Take note of current BIOS settings before reset) 

3 Apprentice

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440 Posts

17-05-2024 06:33 AM

@Chino de Oro​ Thanks, I'll give that a go tomorrow and report back, sounds to good to be true!! lol

3 Apprentice

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440 Posts

18-05-2024 01:29 AM

@Chino de Oro No Go with the jumper CMOS reset!!

5 Practitioner

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5.9K Posts

May 18th, 2024 02:52

Bummer, at least you tried.  Test with new RAM only to see if any bad module.

3 Apprentice

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440 Posts

May 18th, 2024 04:08

Never mind, I am going to bite the bullet and mortgage the house and buy 256GB (8x32GB)
Should I stay with the 2Rx8?
 

1 Rookie

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23 Posts

May 23rd, 2024 23:40

Do you have a single CPU or dual CPU system? And can you take the picture of old memory and new memory? This system should have 24 memory slots in total but you said 12?

Steve

3 Apprentice

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440 Posts

May 28th, 2024 14:34

Everything is posted above Steve

But here is a picture of the new memory and all looks identical!! Only thing that stands out to me is the different manufacturing dates. 

(edited)

1 Rookie

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23 Posts

June 15th, 2024 07:56

What I would try is. 

1. Use your old memory at 

CPU0 DIMM 2,4,3,1. Put New memory at CPU0 DIMM 5, 6
CPU1 DIMM 1,3,4,2. Put New memory at CPU1 DIMM 5, 6. See if that will work. 

If that still doesn't work. somehow the memory can't work as 6 stick per cpu combo. then I'll

2. still put Old memory at

CPU0 DIMM 2,4,3,1.

CPU1 DIMM 1,3,4,2.

but new memory at CPU0 7, 8. CPU1 7, 8 using different memory channel. 

If that doesn't work then I'll test new 4pc alone to see if anything is faulty or you'll just have to get 6pc set for it. 

Steve

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