Crucial/Micron memory question/problem

[daclayman]

Hello

I have the Asus P4S333 motherboard, 256mb Centon DDR and P4 1.6A @ 2.224 and run WinME which I know is entirely stable as I've run this for 3 months problem free. I got 2 sticks of Crucial 256mb 2.5CL this stuff which I promptly stuck in and removed the Centon. I backed these 2 sticks down to SPD (2.5CL,3T,3T,6T) and auto (meaning they will run at 133FSB) and my computer had registry errors upon boot. Norton's memory diagnostic in Systemworks 2001 erred out within 5 secs, yet Memtest86 (ver 3.0) ran for 3hrs and passed twice, no failures. My system was very boggy (think: celeron 500) and locked on most programs with the Crucial. If I passed the MemTest86 for 3hrs, why would I have such problems running this memory at spec?? Also, I have just run the same Norton Test and it passed with the Centon stick back in. Is there any other way to test for bad memory besides bringing it down to the local rip-me-off shop? OOhh, lastly, could the Crucial RAM want more voltage?? I am running a PowerMan 250W power supply. The only thing that changed would be an additional stick of memory. I haven't tried just one of the sticks yet as frustration overcame me.

TIA
Clayton

 

[RustyNale]

[q I haven't tried just one of the sticks yet as frustration overcame me. TIA Clayton[/quote]

That's what I would try first, just put one of the sticks in, see it it works, then try just the other... it could very well be that one of them is bad, or it could be a voltage issue, you might need at least a 300W psu (though it runs with the other memory). Did you try backing the ram settings in bios to 100fsb? If you can run it stable at 100fsb, my bet is the psu can't handle the more aggressive settings that Crucial wants to run at.

 

[daclayman]

I tried one stick then the other. I'm running fine on the 2nd at SPD (auto = 133fsb), but the 1st locked me up just after the WinME splash screen. Me thinks it has issues, but I'd like to test deeper before RMAing it. Any thoughts?? Also, what are some memory timings/FSB on the SiS chipset mobos that these Crucial sticks like to run at?? or point me to some forum threads of overclocked P4s that have this stuff.

Clayton