Posts by cfabw

1) Message boards : Questions and problems : [Windows] BOINC & AMD TurboCore (Message 58603)
Posted 10 Dec 2014 by cfabw
Post:
Is this a bug or is this supposed to happen intentionally?

It isn't something that BOINC does, if that's what you're wondering about. Perhaps that it's a side effect of running work through BOINC, but essentially what turbo core does is frequency scale the CPU when work demands it. However, this adds loads of heat, thus if your cooling is inadequate, the CPU will also clock down again, which is what it seems is happening in your case.

Since your system seems to be a notebook, it's impossible to put a better aftermarket cooler on the CPU, which is what is advised all over the web for use of AMD Bulldozer CPUs and a form of overclocking. The other advice I read just about everywhere is to disable turbo core in the BIOS. It's more useless than useful, and if you want to overclock the CPU anyway, to do it manually through the multiplier in the BIOS.


It is an HP notebook. Heat isn't an issue, since my CPU normally sticks at 3.5GHz with turbocore while gaming and my temps never go above 50C (the max safe temp is far, far above 50C).

BOINC itself barely makes it even heat up at all, turning BOINC to 100% CPU time my temps are usually ~40C. I just don't understand why turbocore doesn't activate even WHEN the work calls for it.

BOINC at 100% CPU time appears to completely disable turbocore. Doing gaming while having BOINC run at that % and my CPU is still at 2.5GHz and won't go over, even though if I stop BOINC tasks or set it to 60% the turbocore will kick in again.
2) Message boards : News : BOINC 7.4.26/.27 released to the public (Message 58602)
Posted 10 Dec 2014 by cfabw
Post:
Yes, that was known already and is fixed in the replacement that we're testing at the moment.


I see thanks, I'll just wait for that then. I'm using the older 7.2.42 version right now which is working perfectly fine until the fix is out to the public.
3) Message boards : News : BOINC 7.4.26/.27 released to the public (Message 58596)
Posted 10 Dec 2014 by cfabw
Post:
There's an issue in the new version .27 that prevents you from connecting to the World Community Grid project.

It throws out an error in relation to something concerning 'email_addr', which I'm assuming BOINC is looking for an email address rather than a username as the input (since WCG uses username for login, not email address).
4) Message boards : Questions and problems : [Windows] BOINC & AMD TurboCore (Message 58595)
Posted 10 Dec 2014 by cfabw
Post:
Hi there.

I'm currently running Windows 8.1 x64 and using BOINC 7.2.42 (current stable version of BOINC has a bug where it doesn't let me login to World Community Grid).

My CPU is AMD A10-5750m 2.5GHz (3.5GHz TurboCore).

The issue I'm seeing is when I run BOINC at 100% CPU time, TurboCore will be disabled and my CPU speeds won't go past 2.5GHz.

However if I have it set to use, say 60% for example, my CPU will be able to hit the 3.5GHz turbocore speeds.

60% CPU time is the highest I can run BOINC at before it starts affecting turbocore. I tried running at 70% and only got CPU speeds up to 2.9GHz and at 80% the max CPU speed I could get is 2.7GHz.

Is this a bug or is this supposed to happen intentionally?




Copyright © 2021 University of California. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.