p5wdh unstable with 3gb of ram...

[Jeeka_abx]

Been running 2GB (2x1GB) of Corsair 6400C4 and needed to get 1GB (1x512MB) of the same Corsair XMS2 stuff, just in a 1GB Kit. Well, low and behold, It freezes in Windows, or no posts at boot. Does running all 4 memory slots full and OC'ing to 3.6Ghz on my e6600 (9x400) stress the board that much? I mean, If I can run 2GB all day long with my OC, what does it hurt to have the 2 other slots full too?

The RAM is the TWIN2X1024-6400C4 but on the chips they say CM2X512-6400C4 v2.1. I hope I didn't get the wrong RAM. Thing is, machine ran perfectly with only the 1GB kit installed.

I overvolted the RAM from 2.1v to 2.2 and still Suckville.

With 3GB of RAM, would the /3Gb switch do me any good?

What other components could I tinker with to gain stability.

I am a huge After Effects/Photoshop/Indesign guy so you can see where all my RAM would go.

Thanks!
jeeka.

[FightingChance]

Have you clocked back to stock just to see if it freezes then, as well?

[Jeeka_abx]

Not yet. If it does turn out to be that I need to turn down the OC a tad, would upping the voltage on a certain part (vMCH, vFSB, vDIMM, etc.) do the trick to get me back to my current OC of 9x400? Sounds like my chipset is sweating with all the seats in the car full .

Thanks for your insight!
jeeka.

[FightingChance]

Traditionally filling all RAM slots does decrease overall overclock.

Just go all the way back to stock clocks to see if behavior persists. It's important to find that out before you can proceed with potential fixes.

[Jeeka_abx]

Ok,
The 3GB with the /3GB switch (Photoshop LOVES 3GB with the switch) runs perfectly at CPU' stock 2.40Ghz. It even runs with the ram at 2:3, with the RAM running DDR800, 4-4-4-12 @ 2.1v which is all 4 stick's factory specs.

What can you draw from this?
The ram only runs at 800Mhz when the FSB is at 266Mhz 1:1 an 2:3 all the way to 366@1:1. after that, it's a crap shoot.

In theory, could I throw more volts at something to get my 400FSB 1:1 OC back from when I have 2x1GB only? Would upping the voltage on the vMch, FSB, RAM help? Thoughts?

Thanks for your time!
jeeka.

[FightingChance]

While I'm a pretty handy computer guy, stuff like vdrop and vdroop and MCH voltage modding has my head spinning.

You might have better luck here if no one on Abx can give any pointers: XtremeSystems Forums - Powered by vBulletin

[Jeeka_abx]

Hmm, maybe it's time to see what a 680i can offer me, then. Maybe I might have better luck running 3GB, e6600 @ 3.6Ghz, 4-4-4-12, 400FSB. I've done the vMXH mod on my last p5wdh so modding the MB does not scare me.

You think it could be a vdroop somewhere in my system possibly?


Thoughts?
joe.

[leeghoofd]

Just forget about running 3gb on a 680i as it's more picky on ram than your current mobo, I really don't see why you did this...or even wanted to try this on a ya OC'ed rig. Okay iflexram or how does Intel call it works if you run stock but Jeeka you have been pushing this mobo like we all do around 400FSB , stressing the NB very hard. Why didn't you sell your old kit and got eg 2 x 2048 kit. Also the Asus bios doesn't allow any fine tuning in the memtimings maybe you can do that with memset and load it each time when XP boot. I would ditch the old ram kit and get another 2 gig kit...

680i is an adventure, currently with the latest 1002 bios the Asus Striker performs stable, EVGA and co from 24 bios on and Abit is in beta5 stage I think... for me at my current clocks E6600@3600 with same settings for ram the I975 remains the superior chipset when using one GFX card, the 680 allows smooth ram overclock once you have a good set... but the learning curve is hard !!

[Jeeka_abx]

True, I'll just wait for the Bearlake stuff to appear.

Anyway, the reason I bought the 2x512MB kit was for Photoshop and After Effects. And, like all of us, I am willing to shell out a little dough to find out what my rig can do. Buying more RAM is a lot more tame than someone investing in Water or Phase with a Pentium D 805 just to get high clocks (and still be slower than Conroe rigs). No big deal, I can just return the memory. Also, it's starting to freeze my machine at stock now, without the 2GB Kit!

The extra RAM helps tons with my main multimedia programs, but not at the cost of a 50fsb reduction in OC. Not worth it to me, I don't get into that >2048MB used RAM realm to often. I'll live

True, the Asus BIOS's aren't the best BIOS's for OC'ers, but compared to the issues with 680i's are just too scary. I was just fishing to see what people said.

Anyway, thanks for your input!
jeeka.