FakeAlGore wrote:he AI Suite installed...
ludi wrote:Wait, I thought the advanced power savings features aren't enabled during the BIOS routine, meaning the CPU is not at the same idle value that it will experience when fully booted and running a modern OS?
DancinJack wrote:FakeAlGore wrote:he AI Suite installed...
Delete that bloat crap.
Scrotos wrote:I could be wrong but logically it doesn't make sense to me that a BIOS (even EFI) would be hitting the CPU as hard as a modern OS. Sure it might not be throttling down the MHz or voltage, but still it's not exactly peggin' the CPU at 75% or even more than 5% or less.
FakeAlGore wrote:After using it for a few minutes, I'm inclined to agree with your assessment. I'll remove it tonight and use HWMonitor to check on my temperatures. Do you know if it can write to a log file at a predefined interval? I plan to run the test overnight, and I'd like to see if the temperatures are stable throughout testing instead of just knowing it isn't too hot when I wake up.
FakeAlGore wrote:Scrotos wrote:I could be wrong but logically it doesn't make sense to me that a BIOS (even EFI) would be hitting the CPU as hard as a modern OS. Sure it might not be throttling down the MHz or voltage, but still it's not exactly peggin' the CPU at 75% or even more than 5% or less.
It's my assumption that the UEFI BIOS isn't utilizing the HLT instruction to properly power down the CPU at idle because it is run as a single process without a separate kernel handling such things.
For a real-world example, the Windows 9x-based operating systems did not implement the HLT instruction because there was not a system idle process like in Windows NT-based operating systems. To properly power down the CPU during idle on such systems, you had to run a program such as Waterfall Pro, Rain, or CPUIdle that would do nothing but run in the background issuing HLT instructions at the lowest CPU priority. This lowered power usage and heat dissipation.
axeman wrote:Most machines will have higher idle temperatures showing in the BIOS versus the OS, UEFI or not, because they're not bothering with HLT instrucations or whatnot. That's nothing curious. No one else ever sat in the Hardware Monitoring screen in the BIOS watching all the numbers?
Scrotos wrote:I suppose my contention is that even at 100% single core NOP in BIOS it's not really going to test... anything. And might as well just ignore whatever "load" that is for the purposes of testing heat and all that.