Originally Posted by PapaSmurf
You might want to try a long bios clear. It's surprising what types of problems it can cure. I ran into a lot of problem with my EP45-UD3P right after doing some over the top OC'in of an E2180 to 4GHz on air. Ran the Long Bios Clear overnight and it cleared right up. It might not help, but it's worth a try. Some of the others in the EP45-UD3 thread have had problems after some heavy benching/OC'ing sessions that it's also helped with.
I hadn't tried any BIOS clearing for awhile, so sure its probably time for one!
Originally Posted by EvoBeardy
70c made me wince a little, and only at 1.51v too, it didn't really like that.
Some people have been having problems with the H50 and the heat that's generated when upping the Voltages though, a good D14 or Silverarrow will be your best bet at cooling, sacrificing your top fan hole.
I really need to get some mulah together and sort my window mod out, I've currently got a single 120mm on the lower mount, with a cut-out of a pair of my missus' tights stretched and clamped under the perspex, over the entirety of the inlet grooves, for a dust filter.
One thing you could possibly try, to determine whether the MOSFET's are struggling to supply the power 4 cores require, or whether it's the individual core itself, is to try disabling the other 3 cores, one at a time, running it as a tri-core as you were before.
If it goes through all four cores without a hitch, then it's probably the Mobo.
If it only works when you disable the core you did at first, then you know that core's a goner and can RMA it accordingly.
That'll be the best bet to determine CPU or Mobo problem.
Also, the 555 will only do you a good testbed if you're able to unlock and OC all four cores, as the MOSFET need the power drain that at least 4 cores bring, to replicate the problem.
Now I'm gonna have to give you +rep for that reply!
I would never have thought about disabled ALL the cores, 1 at a time, to test the MOSFET's to rule out the Motherboard.
The only reason so far that I've presumed
its just the 4th Core is because when I disabled it, the random Bluescreens stopped; but when I enabled it and then disabled the 3rd Core, the random bluescreens came back.
However, even with just running on Cores 1, 2, and 3 as a Tri-core.. I am still experiencing some random problems and various games crashing to desktop, usually with games that never crashed on me before; and doing so no matter what Catalyst Driver that I try for my Vid Card, which in my mind helps to rule out the Vid Card... along with all the various 3dMark/Vantage and Heaven benches and FurMark tests, that I'v been throwing at my Vid Card to test it.
So it seems more and more likely that the CPU or the Mobo is the culprit.
But I never bothered testing with disabling any of the other Cores except just the 3rd core; and unfortunately my Motherboard only gives the option to disable/enable 3 cores if running on a Quad(or 5 if running on a Hex). It does not give the option to disable/enable the primary 1st core. Asus probably did that to keep people from accidentally disabling ALL their Cores and thus rendering their machines inoperable.
But I can at least test with the 2nd Core disabled as well...
Also, you're mentioning the Duals as being a bad test bed. I thought about that after I made my initial post. Kinda realized at that point that, if it really is a problem with the 4th Core on my Quad, then any x2 Test Chips that I do get would have to have an unlockable and stable 3rd and 4th core to get a proper test...
I know some say that its hit or miss the Calisto x2's and I know the 555's are all the rage with the Calisto line; love Rockr's post about it on Page 1677
... which is encouraging, but still... I don't have that guarantee that I'd get a Quad out of it for proper testing.
Ironically, I originally planned to go with a 555 x2 when I first started building my Scout, with the intent of unlocking it to a Quad but ended up sending it back the day after, in exchange for the 955, because I did not want to take the chance that I would not
get the 555 to unlock to a full Quad and I really wanted a Quad.
Maybe I'll just try and get myself one of those newer Phenom II ex 975 BE's
when they come out...
75 seems to be one of my lucky numbers anyway!
Of course by the time those hit the shelves, the 1090T will probably be in my price range! LOL
If I get either of those, then I'll just end up keeping it... then try and sell off the 955 after it gets RMA'd...