M
Mike Tomlinson
Roger Hunt said:Sorry?
Prime95 does not "test lots of RAM".
Run the "Torture Test". One of the test options uses "lots of RAM".
Roger Hunt said:Sorry?
Prime95 does not "test lots of RAM".
I just found something else that quickly detects memory problems.
Open an avi file in virtualdub, hold down the shift key and drag the
pointer.
It should snap to key frames. Progress thru the avi should be
smooth. With my memory timings a little too aggressive,
I got hiccups and the avi display cleared to grey screen.
I'm giving prime95 a try now.
Sorry?
Prime95 does not "test lots of RAM". From the readme :
" SETTING AVAILABLE MEMORY
The P-1 factoring step prior to running a Lucas-Lehmer test is more
effective if it is given more memory to work with. However, if you let
the program use too much memory then the performance of ALL programs
will suffer. The good news is that 98% of the time the program uses
less than 8MB. In fact, the program will work just fine if you instruct
the program to use only 8MB or less."
etc ...
da_test said:Secondly, as I mentioned in another post in this thread,
in my bios SPD seems related to interleave only,
unless I'm misunderstanding something - but I don't
think I am. I checked the chipset values using wpcredit.
Dave
Ah, I see. I stand corrected.George said:(snip)
Run it and see. The Torture Test ran up to 900MB on my 1GB system the last
time I looked. I wonder if the para you quote is either out of date or
applies to everything but the Torture Test... IOW the real work. In that
respect, note that the Torture Test runs with a low priority on recent
versions, so possibly they shuffled things around without updating the
docs.
Hello Yousuf,Why do you think that's the case? The SPD has nothing to do with
interleave. The interleave is a factor that the system itself sets
through the BIOS & chipset, but it runs the RAM at whatever settings you
specified whether it's interleaved or not. Interleaving is outside the
control of each individual DIMM, it works at the memory bank level.
Yousuf Khan
Ed, a couple of things, I've never had much luck with memory testers.
If I set the timing aggresively, I will/have errors in Windiws.
But memtest86+ never finds a problem.
Secondly, as I mentioned in another post in this thread,
in my bios SPD seems related to interleave only,
unless I'm misunderstanding something - but I don't
think I am. I checked the chipset values using wpcredit.
Dave
In other words there isn't a way in my bios to set cas latency
or dimm memory speed based on any info the RAM supplies;
rather, like most Bios' they have a default based on the
most conservative; ie. cl3 and 6-3-3.
regards,
Dave
Why do you think that's the case? The SPD has nothing to do with
interleave. The interleave is a factor that the system itself sets
through the BIOS & chipset, but it runs the RAM at whatever settings you
specified whether it's interleaved or not. Interleaving is outside the
control of each individual DIMM, it works at the memory bank level.
Why do you think that's the case? The SPD has nothing to do with
interleave. The interleave is a factor that the system itself sets
through the BIOS & chipset, but it runs the RAM at whatever settings you
specified whether it's interleaved or not. Interleaving is outside the
control of each individual DIMM, it works at the memory bank level.
Ah, I see. I stand corrected.
The thing is I run P95 23.8.1 24/7, and have been for seven years or so
as a permanent fixture and long-term stability check and also as part of
GIMPS (M34406129 ATM), and have never run any torture test - just
factoring integers, so I missed that.
(If you want to convert a Mersenne integer to decimal and boggle at the
size use Mprint, http://www.apfloat.org/apfloat/ )
It all really started when I bought a FIC VA-503+, stuck a P166MMX on itGeorge said:Wow, your system gets a real workout then - care to share its specs and, of
course brand/type of memory?
Sorry?
Prime95 does not "test lots of RAM". From the readme :
" SETTING AVAILABLE MEMORY
The P-1 factoring step prior to running a Lucas-Lehmer test is more
effective if it is given more memory to work with. However, if you let
the program use too much memory then the performance of ALL programs
will suffer. The good news is that 98% of the time the program uses
less than 8MB. In fact, the program will work just fine if you instruct
the program to use only 8MB or less."
etc ...