ASUS P5Q-E (P45) pre-view

[wongnog]

Higher Performance Level = higher compatability / Better Stability yes, ie like if your having trouble get your mem stable, set the PL higher than 10, Lower Performance Level = Higher Performance, like 7, 8 or 9. only trouble I find with the lower PL's is you have to literaly whack all your voltages up alot higher to keep things stable, a few years back I would of proceeded to do that, but now I just want a semi overclocked machine, 100% stable, without having to test 24/7/365, and loads of noisey fans inside my case alternatly trying to cool everything from the extra voltage, currently im at PL 12.

Okay I'll try raising my PL then above 10. Not sure why Zeus said to lower it though...

[NBF]

Okay I'll try raising my PL then above 10. Not sure why Zeus said to lower it though...

Seanie's Show is running 1:1 memory, that requires higher PL.

I'm your case you can let it on auto to start search for stability, latter you may try to lower to 7 or 8 for better performance.


In fact, you could try let almost all on auto, just set Vcore, Vmem and divider. Disable all Advanced CPU Settings.

[Zeus]

Seanie's Show is running 1:1 memory, that requires higher PL.

I'm your case you can let it on auto to start search for stability, latter you may try to lower to 7 or 8 for better performance.


In fact, you could try let almost all on auto, just set Vcore, Vmem and divider. Disable all Advanced CPU Settings.

My mistake, i actually meant higher, sorry.

You say you keep getting errors in memtest 86 test 5?

That is for sure your mem that's instable, not your chipset or cpu.

[wongnog]

My mistake, i actually meant higher, sorry.

You say you keep getting errors in memtest 86 test 5?

That is for sure your mem that's instable, not your chipset or cpu.

Yes I ran a test overnight and found multiple errors in test 5 and 7, so now I just do a loop on test 5 because it seems to pick up the errors the quickest. So I set everything to auto except VCore I set to 1.30V (my chip's VID) VDimm to 2.1V (chip's rating) and brought my CPU back to stock speed (9x266). Memory is on a 3:5 divider and clocked at DDR2-890, but I STILL got memtest errors on test 5. I'm testing each stick individually now but getting a little impatient and deterred!!! I do have my dimms in the yellow slots as per mobo manual, maybe I'll try black slots next.

Already wrote a message on the OCZ support forum but likely won't hear back from them until Monday. Should I underclock my cpu to 9x250 so I can run my ram at 1:1 and DDR2-1000? Or maybe 9x333 on a 2:3 ratio and DDR2-1000? Ugggh this is so annoying.

Please keep your suggestions coming guys, I want to rule out all possibilities before I send these back for RMA.

Update: Got test 5 errors within 5 minutes with 9x250 (ram running DDR2-1000). Switched to black slots and got the same. Testing dimms individually now. Is it possible it is a problem with the motherboard memory controller?

[Seanie's Show]

Yes I ran a test overnight and found multiple errors in test 5 and 7, so now I just do a loop on test 5 because it seems to pick up the errors the quickest. So I set everything to auto except VCore I set to 1.30V (my chip's VID) VDimm to 2.1V (chip's rating) and brought my CPU back to stock speed (9x266). Memory is on a 3:5 divider and clocked at DDR2-890, but I STILL got memtest errors on test 5. I'm testing each stick individually now but getting a little impatient and deterred!!! I do have my dimms in the yellow slots as per mobo manual, maybe I'll try black slots next.

Already wrote a message on the OCZ support forum but likely won't hear back from them until Monday. Should I underclock my cpu to 9x250 so I can run my ram at 1:1 and DDR2-1000? Or maybe 9x333 on a 2:3 ratio and DDR2-1000? Ugggh this is so annoying.

Please keep your suggestions coming guys, I want to rule out all possibilities before I send these back for RMA.

Update: Got test 5 errors within 5 minutes with 9x250 (ram running DDR2-1000). Switched to black slots and got the same. Testing dimms individually now. Is it possible it is a problem with the motherboard memory controller?

If your chasing for 1000mhz on your RAM, try 1:1 but there is no need to underclock you CPU to achieve this, just drop the divider to x8 and raise the FSB, just look at it this way, anything upto 500fsb on this board and you dont have to touch the board voltages, auto set them all does just fine.

I am doing 500fsb on board stock voltages, well sorry they are set to auto in the bios, the only ones I have manually set is the MAIN memory timings 5-5-5-15, the MEM voltage and the CPU voltage, I am now playing and testing with the PL, just to see if I can tighten that up a couple of notches.

There are a couple of other basic options I have manually set like load-line=enabled, both spread spectrums set to disabled, I have also set MEM OC Charger, and Ai Clock Twister to moderate, middle of the road.

1 thing I do have to ask is have you tried testing your RAM at stocks ?
Maybe its time to think about if your RAM is knackered.

[wongnog]

1 thing I do have to ask is have you tried testing your RAM at stocks ?
Maybe its time to think about if your RAM is knackered, or if you just have a bad clocking set.

Well by underclocking my CPU (9x250), I am running my RAM at stock. I have PC2-8000 memory which is rated for DDR2-1000 at 2.1V. Here is what I own (link).

In dual channel mode, the RAM fails test 5 after 2 passes. In single channel, one stick fails test 5 after 5 passes, the other is going through 13 passes and counting. This is almost conclusively telling me one of my sticks is bad, right?

[Seanie's Show]

Well by underclocking my CPU (9x250), I am running my RAM at stock. I have PC2-8000 memory which is rated for DDR2-1000 at 2.1V. Here is what I own (link).

In dual channel mode, the RAM fails test 5 after 2 passes. In single channel, one stick fails test 5 after 5 passes, the other is going through 13 passes and counting. This is almost conclusively telling me one of my sticks is bad, right?

Yup, 1 of your sticks is dead, get in touch with OCZ and get them RMA'ed, your sticks should beable to do their rated speed at the rated voltage on any board divider, its not the board.