OCZ EL DDR PC-3200 Platinum Revision 2
The "more voltage is better" version of OCZ EL DDR PC-3200 Platinum Revision 2
http://www.ocztechnology.com/images/...at3200elr2.jpg
The "2.8V to 2.9V is all I need" version of OCZ EL DDR PC-3200 Platinum Revision 2
http://images10.newegg.com/productim...146-890-01.JPG
If you have the newer version that favors voltage, how much VDIMM are you feeding your modules for 24/7 use? I finally had about fifteen minutes to play with my RAM this morning and am curious to explore beyond 3.15V when I return home tonight.
The end has finally come...
Timeline of Events:
11/10/04 (1:30am - 4:00am)
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- Flashed BIOS to 10/15 Beta 4V DIMM
- Increased voltage to 3.3V (3.3V rail has not yet been modified)
- Boot, test, boot some more, test some more
- Highest memory frequency with one 512MB module: 310MHz @ 2.5-3-3-10 (Drive Strength=1)
- Fine-tune using A64 Tweaker
- Implement final settings displayed on A64 Tweaker in BIOS
- Memtest Test #5 looped for 10 runs without errors
- Sandra memory benchmark reveals 5050MB/s average on several runs
- Desire to push for more kicks in
- Adjusted CPU voltage to 1.9V
- Boot, test, boot some more, test some more
- Highest memory frequency with one 512MB module: 315MHz @ 2.5-3-3-10 (Drive Strength=1)
- Greed kicks in, risks are ignored
- Adjusted CPU voltage to 2.1 placing complete confidence in 92mm Vantec Tornado
- Highest memory frequency with one 512MB module: 330MHz @ 2.5-3-3-10 (Drive Strength=2) :slobber:
- Run Prime95 for several hours
11/10/04 (9:00am - 1:30pm)
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- Blue screen of death
- Make adjustments in BIOS
- No luck
- Back to the basics in BIOS with cleared CMOS, Auto settings, and 10x200MHz CPU
- No luck
- Install memory modules onto wife's rig. All systems are go! Thank God it's not the RAM!
- Replace original DFI board with brand new DFI board received last week
- No luck
- Some more fiddling coupled with a few prayers and profane words in between
- No luck
Conclusion: CPU murdered with 2.1V on high-CFM air cooling.
Summary: I have a gut feeling that my OCZ modules will continue to scale well with increased voltage, granted the 3.3V rail will supply the juice and the memory controller is up to handling the task. I'm ordering another 754 on Friday from Newegg and will exercise a little bit more caution next week. Hopefully, the new chip will have a much better memory controller than the one I just killed.
In closing, I'm sure there are still a good number of people that haven't taken the plunge into the 64-bit world of processors. If and when you decide to, it would be a much wiser choice to overlook the 754 and move on to the 939 if you are looking to push your memory to its limits. I've said it in another post and I'll say it again: the memory controller on the 754 is a crippling force that will limit your memory overclocks, especially when running more than one DIMM. Some people get lucky with their C0 chips, others rave about the CG revisions. My CG couldn't put out the juice, even with 2x256MB G.Skill modules. We all know that overclocking and luck go hand in hand...more so when it comes to 754.
Wish my next CPU luck. Either way, 939 is already in my immediate future.
Cheers! :toast: