Official ASUS X38 Boards: P5E, P5E3 - Info/BIOS Thread

[STaRGaZeR]

Nice work man, so you are saying I am actually undervolting my RAM? Its rated 2.2 and I set it in bios at 1.96. Lol!

Use a DMM if you want to see it yourself

Also, can you tell me how does the board read the vDimm? It does not have a chip that does that function. That's one of the differences between the P5E and the Maximus. AISuite just can't read vDimm, because even the board can't know that, caused by the lack of the sensor chip. So the program looks at the BIOS, it see the number of steps you have varied the vDimm from 1.80v and puts them in its own list, showing wrong values.

The only way to read vDimm from the P5E is with a DMM. No sensor chip = no possible software monitoring.

[screwtech02]

So were does one measure V-dimm voltage at on this board??? Pics please???

[STaRGaZeR]

http://www.xtremesystems.org/forums/...&postcount=991

[Blokey57]

I would run Memtest for your ram and if it passes (mine did overnight) then boot and test your cpu independently with Orthos. You could run a blend test at your final test, but I did not my system is solid 24/7.

Hey again, i've done a memtest, which it failed, so i thought i'd try my old (very simple) settings, which literally involved putting the FSB to 333 and the RAM to 666 (667 in bios) all voltages on auto, did a memtest, the RAM is showing no errors at all, but the CPU fails after a few minutes in orthos on CPU stress tests, which it also did with your recommended voltages.

Any recommendations?

Thanks for your help so far Doakh

[BitBucket]

Guys did you even read my reply about the Vdimm issue? Measuring the voltage at the Dimm slot itself I am reading 1.917v when it is set to 1.86v in the bios using my DMM.

Soooo basically there is a .057v increase between what is set in the bios and what is actually being applied to the RAM itself.

Do not beleive AIsuite at all it is wrong also the bios is wrong. Just add a +.057v offset to the bios setting and that will give you the amount being applied to your memory.

BTW it is pin 64 on the DIMM slot so fell free to test it yourself just make sure you have some needle probes and a steady hand to do it.

[screwtech02]

Thank's BitBucket, that is the tye of relpy i was lookin for.....

[situman]

I think you are wrong, i'm using 601 since the it comes out and as you can see:



http://service.futuremark.com/compare?2k1=9332754

It did work great.

Can you list your settings in the bios please.

[M@ster]

CPU voltage @ 1,6-bios, 1,54-Windows
PCIE -105
DRAM voltage @ 2.1
Load line calibration - Enable
CPU spread spectrum - Disable
PCIE spread spectrum - Disable
Mem settings the best are são 5,5,5,15 and the others at auto.
Static Reading - Disable
The other options are @ auto.

[EaglePC]

so setting my dram volt to 2.06 volt in bios will give me 2.10 volt ?
2.1 is what i need

[BitBucket]

so setting my dram volt to 2.06 volt in bios will give me 2.10 volt ?
2.1 is what i need

It will give you 2.117

[Ymir]

It will give you 2.117

@Eagle:So in short, yes. It will give you the 2.1 that you need.

[Cranox]

and what were your results?

Bios set : 1.900v
A.I : 2.050v
Real voltage measured : 1.950v

[doakh]

Bios set : 1.900v
A.I : 2.050v
Real voltage measured : 1.950v

So, then the X38 chipset is very memory friendly. I am running pc2-6400 memory at 1069MHz at only 1.90v (~1.95v actual). The stock voltage for my memory is 2.0 ~ 2.1v at 800Mhz! I have been able to boot at 1186Mhz with 2.16v, but the performance gain was negligible, so I went back to 1069Mhz.
So, I wonder if there is any real performance gain in getting really fast memory like pc2-9200 (1150Mhz) or pc2-9600 (1200Mhz) memory.

[Psycho_eddie]

If you want performence get yourself - Corsair Dominator PC10000 KIT

Supurb memory

[EagleRock]

My rams are not even stable with the stock setting, i have no idea whats going on. i cant even run the q6600 g0 on 3ghz, im so pissed
any help ?

[bigslappy]

here's an interesting read for those with Vista 64 Bit posted yesterday @Tom's>>>>>


http://www.tomshardware.com/2008/02/...hop/index.html

even has some screen shots of a Asus X38 Bio's

[mngdew]

Have you tried higher NB voltage? With 4 modules NB needs more voltage.

My rams are not even stable with the stock setting, i have no idea whats going on. i cant even run the q6600 g0 on 3ghz, im so pissed
any help ?

[Psycho_eddie]

My rams are not even stable with the stock setting, i have no idea whats going on. i cant even run the q6600 g0 on 3ghz, im so pissed
any help ?

Heya, using all four dim slots will put heck load more stress on the memory controller/NB

You be better getting for instance: OCZ ReaperX 2x2GB PC6400/PC8000 using on 2 banks for much better stabilty.


You can try increased NB voltage, increased volt to Dims also as again running 4 dims is morestress! Focus on getting your system/Ram stable first before OCING

[EagleRock]

i had 1.4 v on the NB, 2.2 v on the memory and the cpu was 333*9 at 1.3v
what you think about this setting ? windows started but blue screen after 2 mins of prime

[screwtech02]

Well, here is my attempt.....

http://valid.x86-secret.com/show_oc.php?id=315402

http://service.futuremark.com/compare?2k3=5735813



I dont think that is too bad with 8gb of memory.....

Now i just need some new cards......

[JoeBar]

i had 1.4 v on the NB, 2.2 v on the memory and the cpu was 333*9 at 1.3v
what you think about this setting ? windows started but blue screen after 2 mins of prime

No one can tell u the magic settings. Start increasing voltages one by one and check the stability.

[JakeF150]

Finally got permissions to post, only took 4 weeks or something.

Just wanted to add to this wonderful thread with a success story, as there have been few, but wanted all to know it is possible to get it working.

Either I just got lucky with good memory or a good board, it is too early to tell, but I have not had one issue with this combination to date.

In bios, all is set to Auto except the FSB (400) the memory (1066), and the multiplier (9).

Can't tell you what the memory voltage is as that is not displayed in the bios and I don't run any of ASUS's junk software.

[Cranox]

Can't tell you what the memory voltage is as that is not displayed in the bios and I don't run any of ASUS's junk software.

Then u must grab a multimeter and measure the vdimm on the board itself http://www.xtremesystems.org/forums/...&postcount=991

There is no sensor on the board that can show u the actual vdimm voltage in Bios/software

[EagleRock]

Finally some stable setting
didnt overclock much but at least that is what i need

Load


Idle


Had to push 1.45v to the NB to get things stable.

[karl_eller]

Might want to double check that mount. You shouldn't be getting 70°C load temps on a TRUE at 3.2Ghz unless you've got either a bad mount or bad airflow in your case.

Eller