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Here's a question that I would like to get some kind of definitive answer on, and maybe one of you guys know as I'm not too sure myself. If you pump a high voltage (2.7v+) into ddr2 on a AM3 chip will it likely damage that chips IMC ? And what is the rated speed Imc for ddr2 on AM3 (ie it's 1333 ddr3) is it the same for ddr2.
I haven't seen this in awhile, but when the AMD IMC first came into play, the high Ram voltage could and did damage some IMC's. Remember the IMC was made up of part of the NB that used to reside on the mobo. Way back then we said the IMC was damaged since the ram worked fine in another motherboard but the ram gave issues in the AMD board with IMC that had had high Ram voltage given to it. I think the term used was back EMF causing the damage.
Scratching my head trying to remember all the surrounding circumstances. Mainly trying to remember when the AMD started to use or call out a dual power plane as in use. What we found to do was to use more Vcore than necessary to run the cpu mhz but the extra voltage saved the IMC. You got to remember this was a few years ago now.
When you look at most AM3 and AM3+ boards, you will see a memory spec of 1.5V in most I have read lately. NO I have not read every AMD motherboard spec for memory manufactured in the world. Just saying 1.5V ram volts seems the standard today in AMD world.
I am looking toward PD and had to make a NewEgg order the other day and ordered me some 1.5V ram because " I " did not want to take a chance on hurting "my" IMC. I still have quite a bit of older DDR3 but it takes 1.65V in general.
So when we type into a forum whee gawd himself only knows who is reading, we need to almost always err on the side of caution. IMO only. YMMV.
(Fixed typo to make it clear it is regarding DRAM)To address another myth, only of which I have heard on Overclockers.com, that much over 1.5v DRAM Voltage can kill your CPU? Nah. C2 and C3 (before 2011 weeks) non X6 or "T" model CPUs can take up to 2.4v without issue. However, there is a great chance that your DDR3 can not. Most DDR2 can, though! For later X4 and X6 models, however, stick to 1.8v or less.
That is not a normal occurrence over @ XS, having learned a lot from the guys over there. I haven't seen it anywhere else either, like overclock.net or TPU.
I'd like to see proof so I can recognize what kind of instability there was.
Certain BSODs correspond to different parts of the CPU/DRAM, and Prime95 will only fail certain ways too for certain parts of the CPU/DRAM.
I agree with RGone. I've always said the 1.65v ram makes some AM3/AM3+ systems unstable when the ram is run in that upper frequency/voltage range. Somehow it seems to spill over into the CPU.
I've ran 1.65V-1.8V on RAM in every AMD PHII rig I've ever ran. It sounds like you have other problems on your rig that aren't limited to just ram voltage.
Running 1.65V on ram is in no manner dangerous on PHII.
You have CPU-NB issues it sounds like as well - thats not normal to be that hard to get stable changing CPU-NB or HT link (ht link doesn't really matter, I always kept it at 1800-2000).
Those settings have nothing to do with your mobo though, so it'd be a problem with your chip.
If you think it is the chip that is the problem I'd be happy to help validate the issue with you.*Screams like a girl*
i'm agonising about what to do now, i love this chip but its clearly not as it should be.