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Interesting..

P

Porphyria

Limp Gawd
Joined
Mar 7, 2004
Messages
288
IT seems that my 2.4b Northwood folds faster and easier when it is just stock clocked..

It takes it a lot less to do the same WU, when clocked at 2.394, rather than 2.752.

I suppose it could be a heat thing, anyone else experienced this?
 
Was it the same protein? Different types of proteins have very different times on how long it will take to complete. Some take 5 hrs, others can take up to 2-3 days! You gotta make sure you are running the same exact protein in order to compare times.

FOLD ON!!!
 
No, same exact protein.


Average with +350 mhz clock = 10 : 05 mins a frame.

Average with stock clock = 6 : 34 a frame.
 
That would seem very strange on the surface as the Folding client is mostly CPU core speed dependant.
The only possibility I can see is the CPU is becoming too hot running at that speed causing the MB/bios to throttle the CPU down in core speed. So you think you're running at 2.7 gig because it's set that way, but in truth the PC is being throttled to a lower core speed than 2.4 Gig. Check in your PC's bios and turn thermal throttling off for the CPU and see what happens.
 
I remember the big flap about throttling in the P4 back when it first came out, but I can't think of an instance where I heard that it really affected anything. You might be able to get some clues about possible throttling by checking your CPU temps at stock and OC'd speeds. Let us know what you find out.
 
Does your log show "Extra SSE boost OK." in both cases. If it switched to using "Standard Loops" that would explain a difference in frame times.

ChelseaOilman
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Originally posted by Mattman
I remember the big flap about throttling in the P4 back when it first came out, but I can't think of an instance where I heard that it really affected anything.
Click to expand...


That may be because us P4 owners who know better go turn that crap off in the bios shortly after getting the machine to post. ;)
 
Good point, CIWS. If we want to fry stuff, we can't let something like throttling get in the way! :)
 
Yep throttling isn't for the enthusiast. We typically run systems in conditons that already generate greater heat on the CPU and system via component overclocks and greater core/memory voltages. It would certainly seem silly to work to overclock the system only to have a bios setting defeat the process. Besides as long as a heasink is physically attached to the CPU and a person doesn't go nuts with core voltage, it's extremely unlikely the CPU will be harmed. The old Athlon MBs before thremal protection are a good example.
 
First of all, my motherboard does not allow FSB / Multiplier changing, so I am Ocing via CPUFSB.

The processor isn't getting underclocked though, because CPU-Z Tells me its running at 2.7.

The temperatures stock clock / versus OC are about 13-14 degrees.
 
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