i5-4570T + 7i76e

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24 May 2022 13:41 - 24 May 2022 14:16 #243684 by remon_v
i5-4570T + 7i76e was created by remon_v
Hello,

I’m looking at buying a Lenovo Thinkcentre M93p as a computer for my 7i76E.
is this a good combo?

Intel i5-4570T 2,90 gHz, 4 GB DDR3 ram, 120 GB SSD

Thanks in advance!
Last edit: 24 May 2022 14:16 by remon_v.

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24 May 2022 14:24 #243688 by tommylight
Replied by tommylight on topic i5-4570T + 7i76e
I have one of those running a machine daily, but with an i7 4770 i think, it is at a clients site for over a year.
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Do keep in mind that if mine worked, yours might not, there are a lot of things inside a PC that can mess up latency, most of them can be fixed, but not all.

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24 May 2022 16:19 #243701 by remon_v
Replied by remon_v on topic i5-4570T + 7i76e
Oke cool, yes I understand it’s never 100% comparable… just wanted to check if the CPU was a go or not

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28 May 2022 08:45 #244044 by remon_v
Replied by remon_v on topic i5-4570T + 7i76e
I ended up buying 2 Lenovo Tiny PC's... 1 with i5-4570T and 1 with i3-6100T. I want to test them both with LinuxCNC.

What is the adviced Kernel for the 7i76E... Just Debian 10 PREEMPT?

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28 May 2022 11:12 #244051 by tommylight
Replied by tommylight on topic i5-4570T + 7i76e
Official ISO from the downloads page, so yes, Debian 10 with Preempt-rt kernel.

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28 May 2022 15:23 - 28 May 2022 16:25 #244060 by remon_v
Replied by remon_v on topic i5-4570T + 7i76e
I downloaded the original ISO, copied it on a USB drive via Rufus… but I’m having trouble installing it, on both systems.

The first problem was it wasn’t able to detect the ‘cd-rom drive’, I fixed that with:
mount -t vfat /dev/sdb /cdrom

Then I have problem with partitions part of the install, it gives an error.
Something with vfat SCSI1 partiton connecting to /boot/efi

I can’t figure out what the problem is…

Last time I installed Debian 10 I didn’t have problems at all (on an old PC)
Last edit: 28 May 2022 16:25 by remon_v.

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28 May 2022 16:30 #244062 by tommylight
Replied by tommylight on topic i5-4570T + 7i76e
Disable secure boot in BIOS, and maybe also set the boot to legacy mode.
F@#$%#^#$ UEFI and Microshaft and Intel for the mess they made.
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28 May 2022 18:25 - 28 May 2022 18:37 #244069 by remon_v
Replied by remon_v on topic i5-4570T + 7i76e
I did that but it didn't help... but I'm 1 step further:
I deleted partition 1 (the efi partition) and then continue.
Then I get a warning about the EFI, I continued and it worked.

Now I get a problem with the GRUB:

The 'grub-efi-amd64' package failed to install into /target/. Without the Grub boot loard, the installed system will not boot

BTW:
Boot Mode UEFI Only is black in the BIOS (not editable)

EDIT: Boot Mode is fixed to Legacy
Last edit: 28 May 2022 18:37 by remon_v.

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28 May 2022 18:51 #244071 by remon_v
Replied by remon_v on topic i5-4570T + 7i76e
The legacy mode did the trick!

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29 May 2022 08:02 - 29 May 2022 08:03 #244103 by remon_v
Replied by remon_v on topic i5-4570T + 7i76e
I did some brief latency testing... the i5 seems to perform way better than the i3, while on paper (online cpubenmark) only by a little bit.
Last edit: 29 May 2022 08:03 by remon_v.
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