Hardware latency tests, used PC's

More
14 Jul 2022 22:20 #247328 by tommylight

Asus P5B-MX, Intel Core2 Quad Q6600, 4 GB RAM (2x2 GB in dual channel), some 128 GB SSD i had laying around. Everything not needed disabled in BIOS.
Module pcspkr is not loaded, the script encounters an error when trying to detect if it's loaded.
Slight overclock for the CPU, running 290 MHz * 9 (266*9 stock). RAM running at 667 MHz.

Oh i have that processor with an Asus P5B-Deluxe board, it would overclock to 2700-2800 and fail miserably above it, till i change a single setting in the BIOS that pushed it to 3.6GHz ... and it booted and worked perfectly, until the load would become high, i had only the smallest Intel cooler for it. :(
If you have a big cooler, give it a try.

Please Log in or Create an account to join the conversation.

More
15 Jul 2022 15:25 #247390 by tommylight
Here are the latency results for the Dell 980:
settings to change in BIOS:
-disable
--hyperthreading
--C states
--Virtualisation
--Serial port
--Set parallel port to EPP

Attachments:
The following user(s) said Thank You: seuchato, JT

Please Log in or Create an account to join the conversation.

More
15 Jul 2022 21:33 #247413 by seuchato
Tommy
Thx, seems to me as it pretty much confirms my findings.
Greez
chris
The following user(s) said Thank You: tommylight

Please Log in or Create an account to join the conversation.

More
15 Jul 2022 22:08 #247416 by tommylight
I might do some more tests with turbo and speed step disabled, might get even better.

Please Log in or Create an account to join the conversation.

More
16 Jul 2022 07:40 #247433 by seuchato
I bet it will :-)

Please Log in or Create an account to join the conversation.

More
11 Aug 2023 23:37 #277682 by tommylight
HP Z420
A water cooled from factory Xeon beast, used for 100-200 Euro here depending on what comes with it, it is very good with Debian 12 BookWorm and 6.1 (i think) RT kernel, has 700W power supply and at least 15KG! :)
Be warned that it uses ECC RAM, so very costly, but usually come with 16 or 32GB of ram, sometimes 64GB.
Does not have parallel port
-
HP Z220 - or skinnier brother of the above
Has parallel port header on board, Intel i7 Quad core always, heavy,
Got one of these lately so more tests and results to come. Should be good, but how good?
Used, 80-150 Euro here, usually 100-110.
The following user(s) said Thank You: seuchato

Please Log in or Create an account to join the conversation.

More
12 Aug 2023 06:43 - 12 Aug 2023 06:47 #277709 by Jensner
Yesterday I got one Optiplex 980 i7 with 8GB RAM and NVidia quadro Graphics-Card.
I think this 65€ had been a good investment ;o)

I did the Bios-Settings like you wrote.
Is there anything else that needs to be considered during installation?

By the way, what about the i5?
I think about buying a second 980 for having a spare part.
But i7 are much harder to get, but i5...

Best regards
Jens
Last edit: 12 Aug 2023 06:47 by Jensner.

Please Log in or Create an account to join the conversation.

More
12 Aug 2023 09:59 #277717 by tommylight
Check the pictures of latency, mine are both i5.

Please Log in or Create an account to join the conversation.

More
13 Aug 2023 20:17 #277866 by seuchato
Jensner
Do not bother too much about a *very*  "i7"! especially, if it eats a lot of power. I strongly believe (yet to be proved .. I am working on it) it is more the amount of caching memory.
Greez
chris

Please Log in or Create an account to join the conversation.

More
13 Aug 2023 20:52 #277871 by EricKeller
I have never had problems with i5 processors. I have been buying Dell mini towers with i5 and the latency has been fine. The variability in latency seems to be bios related, and probably won't get much better with an i7.

Please Log in or Create an account to join the conversation.

Time to create page: 0.146 seconds
Powered by Kunena Forum