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March 30th, 2023 16:00
T7910 Memory modules
Hi all, I have a T7910 that boots up and runs fine using 4GB sticks of PC4-2400. I have 8GB sticks of PC4-2400 with the exact same specs, and the machine does not boot. I don’t get any error codes on the front, but the boot never completes and I don’t get video. Any ideas?
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BrutusPrimus
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April 1st, 2023 10:00
One interesting thing I noticed is when I take out the 8gb sticks and put in the 4GB sticks, I do get the onscreen alert that the memory size has changed. So it must be seeing it. It’s just not letting the boot up fully complete.
claytonb
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April 2nd, 2023 16:00
I would suggest 8GB into CPU0 Dimm1 and CPU1 Dimm2 totalling 16GB outherwise since memory is cheap go 4x8GB = 32BGB then insert them into
CPU0 Dimms 1&2
CPU1 Dimms 1&2
Check the memory chart listed at the start of this topic.
Pleanty of memory kits for the T7910 on eBay, make sure it's 2400MHz DDR4
WizardOfBoz2
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April 4th, 2023 05:00
@bradthetechnut You are right, there does appear to be a discrepancy. I do have 2400MHz memory installed, and Ubuntu reports that its being used as 2400MHz memory.
Suddenly, I feel better....
Thanks.
BrutusPrimus
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April 4th, 2023 06:00
I think what’s happening with mine is the memory I got isn’t true server memory. It’s PC4-2400T-RDB-10, so I ordered some PC4-2400T-RB1-11. Should be here later this week.
BrutusPrimus
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April 4th, 2023 06:00
If anyone has a good reference for decoding the segments of a module type (rdb-10 vs. rb1-11), I’d be grateful. I wasn’t able to find much out there.