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Is this even possable for SDR

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Mr. $T$

Member
Joined
Sep 15, 2001
I have this stick of SDR on my pIII Machine that can do 166 FSB at CAS 2 and at 3.3v :eek: is this quite possably the fastest stick of SDR ever made.

BTW: it scored 1263 in SiSoft not bad for a gig pIII


I just had to shair that with all of you :)
 
Is that a 128, 256 or 512 stick?
I have NEVER heard of SDR that can do 166mhz @ 2-2-2 5/7. If you really have one that can do this then you are more than lucky.
My Kingmax 256mb PC150 stick does up to 156mhz @ 2-2-2 5/7
 
Mr. $T$ said:
I have this stick of SDR on my pIII Machine that can do 166 FSB at CAS 2 and at 3.3v :eek: is this quite possably the fastest stick of SDR ever made.

BTW: it scored 1263 in SiSoft not bad for a gig pIII


I just had to shair that with all of you :)

What brand/size/chips/where was it purchased?
 
paulie said:
Is that a 128, 256 or 512 stick?
I have NEVER heard of SDR that can do 166mhz @ 2-2-2 5/7. If you really have one that can do this then you are more than lucky.
My Kingmax 256mb PC150 stick does up to 156mhz @ 2-2-2 5/7

Hm I do. I myself had 'older' Rev2 Mushkin (256Mb) and it did 160 @ 2-2-2, 5/7t.
 
paulie said:
Is that a 128, 256 or 512 stick?
I have NEVER heard of SDR that can do 166mhz @ 2-2-2 5/7. If you really have one that can do this then you are more than lucky.
My Kingmax 256mb PC150 stick does up to 156mhz @ 2-2-2 5/7
What kind of RAM testing did you did at those timings? Just curious -- Paul
 
macklin01 said:

What kind of RAM testing did you did at those timings? Just curious -- Paul
I used memtest86. The funny thing is, it's rock stable at up to 160mhz 2-2-2 5/7 inside windows. memtest86 always gets errors @ 157mhz, but it's a more thorough test so I will say 156mhz is the true 100% stable speed.
I have tested a dozen or so Kingmax PC150 sticks and I have found that the 256mb sticks tend to oc a lot better than the 512mb ones.
 
FIZZ3 said:


Hm I do. I myself had 'older' Rev2 Mushkin (256Mb) and it did 160 @ 2-2-2, 5/7t.
I said 166 and not 160. That's a big difference. The best I have personally seen does 163 @ cas2.
 
Interesting!

I also use memtest86, but I could only make it through 149 MHz at 2-2-2-5/7 on both my 256 MB sticks. (both from mwave.) I can't quite remember if the errors I found were in the default tests or in the extended tests, though. I guess that's just the luck of the draw ...

Nice OC! :) -- Paul
 
Re: Re: Is this even possable for SDR

i810 Forever said:


What brand/size/chips/where was it purchased?

Generic 256, Bought: Fred Meyer ( :rolleyes: )
 
That's pretty impressive! Some people hit big with "luck of the draw" ... :) Very nice! Make sure it's really stable, though, i.e., run a battery of stability tests, not just (for example) boot windows and play a game or two. -- Paul
 
Cool! :D I remember when I used to fold with this machine ...

That doesn't rule out all possible RAM-related data corruption, but it's a very good sign. The thing about a RAM overclock is that some operations may be stable while others may not be at certain addresses at a giving speed / timing setting. It is entirely possible to have an unstable RAM overclock but only rarely encounter those bad operations. (like only some applications may generate the bad operations in the bad addresses and crash, while most others are fine) Without a thorough RAM check (that goes over many of these read / write / move operations), it's hard to say that the above wouldn't happen. For day-to-day computing, I would suppose that would count as stable. (I guess I'm just nitpicky, but I can't afford to have a calculation die in hour 26 due to such an error.)

I've always found it interesting how the definition of a stable RAM overclock can vary. At the end of the day, it only has to be as stable as your needs and expectations. ;)

Way to go on a terrific overclock. That's simply fantastic! :D

-- Paul
 
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