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

[karl_eller]

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

Ok, so you use that pin, but what do you use for ground (or whatever the potential difference is relative to)? The case? A ground pin on the PSU? Or what?

Eller

[JoeBar]

Ok, so you use that pin, but what do you use for ground (or whatever the potential difference is relative to)? The case? A ground pin on the PSU? Or what?

Eller

A motherboard screw.

[Prodigys]

BIOS AUTO voltages
475 x 7 is stable, 480 x 7 not...

BIOS AUTO voltages
445 x 9 is stable for 5 min max

BIOS AUTO voltages
425 x 9 is stable

So the point is, my NB can easily go up to 475 FSB, my CPU can also do this. He can run fine 475 x 7, he also runs 445 x 7 (x8) stable !
But 445 x 9 (my lovely wanted 24/7 use) he is only stable for 5 min...

So the CPU and NB can handle 475 FSB, but the chip itself can not handle the higher speeds. The Vcore is not the problem, he boots 4ghz @ 1.38Vcore, and he is fully stable on 1.42Vcore... I also tested 445 x9 on 1.5 and it doesnt matter. Now my thought is, that the GTL ref and/or the PLL are wrong getting wrong voltages. Maybe even the NB.

So what do you guys recommend me for 445 x9 use ?
Vcore I will keep on 1.42, but what with the other voltages etc ?

If anybody can give me some advice ! I have none experience with PLL/GTL ref etc... I'm also for the first time on a qaud and first time on 4 x 1GB...

[necron66]

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

Just measured from that pin, got 2.4v, I have to check my bios, but I'm pretty sure I have it set to 2.3v. I'll do some more measuring from that pin after and post results back here when I'm done.

[EagleRock]

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.

I think the cooler is mounted right im getting around 44c at idle and 66-67 at load. the 69c was after 10 hours of prime test... Do you still think it is bad ? maybe i can double check the mounting and the thermal paste.

About the air flow u can see from the pic here , do you think using the optional asus fan is making bad air flow ?



thanks for the help

[Ymir]

Ok, so you use that pin, but what do you use for ground (or whatever the potential difference is relative to)? The case? A ground pin on the PSU? Or what?

Eller

I assume that would use a motherboard screw. Although some use the case, that can give you some strange results.

[necron66]

I assume that would use a motherboard screw. Although some use the case, that can give you some strange results.

I had mine touching the PSU and case, where there is a case flap over the PSU on my Stacker 810.

[mk-ultra]

finally can post...hello everybody

anyone know where to mesure the nb/sb/fsb voltage with a dmm?

thanks

[necron66]

Just measured from that pin, got 2.4v, I have to check my bios, but I'm pretty sure I have it set to 2.3v. I'll do some more measuring from that pin after and post results back here when I'm done.

Measured from the pin Cranox said,

2.36v bios = 2.4v DDM
2.3v bios = 2.35v DMM

[karl_eller]

Ok, so according to most of the results here, I should be looking at a ~0.05v overvolt on vDIMM compared to what's set in BIOS, except that isn't actually what I get. In BIOS, vDIMM is set to 1.9v, but if taking a reading off the pin that Cranox said, I get a vDIMM of 1.9v. I decided, just to satisfy my curiosity (and 'cause I have a new DMM that I wanted to play with ), to try and see what the potential difference of some of the other pins on those chips are, and I noticed that two pins gave much more expected results, ie about 1.94v.

Can anyone who's bored and got a DMM have a poke at these two pins (marked in the attached image) and see what their voltages are relative to BIOS and what Cranox's pin says? Could just be a coincidence.

Also, does anybody know where I can measure vCore from on the P5E?

Eller

[Cranox]

I got on all three the pins the same voltage.

[mk-ultra]

1.991 on the yellow pin
and
1.983 on the blue pins

[delewin]

Hi Guys,

I have a Sunon KD1212PMB1-6A 120x 120x 38mm fan that I want to use as my CPU fan cooler. This fan has a standard 3 pin female fan header connector.

It is rated at 6.8 Watt. That equals 0.57 Amp. The actual ASUS X38 board I am interested in getting is the ASUS P5E3 WS Pro.

The reason is that this machine will also have a dedicated 8 port Raid Card using one of the PCI-X slots.

Does anyone know the answer to this? I have looked on the ASUS web site. I have downloaded the manual for this board. All with no luck.

I cannot afford the expense of finding out the hard way that it does not support a 7 Watt fan, after connecting it and fritzing my new motherboard.

Thank you,

David

[karl_eller]

If you're really worried about blowing a fan header, you can always run the fans straight off the PSU. You can either buy a molex to 3-pin fan adapter, or else wire up some of your own by using some spare molex plugs and what-not.

But sorry, I can't help you as to how much power a fan header can supply. I've had no trouble running fans that pull about 0.3 A @ 12v, but nothing higher than that.

Eller

[JakeF150]

From page 2-30 of the P5E manual:

6. CPU, chassis, and optional fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN1~2, 3-pin PWR_FAN)
The fan connectors support cooling fans of 350 mA~1000 mA (24 W max.) or a total of 1 A~3.48 A (41.76 W max.) at +12V.

I haven't looked in the other manuals, but it would seem logical that the rating is similar.

Actually in the P5E3 WS Pro manual, on page 2-31, it lists even HIGHER numbers:
9. ... 350 mA~2000 mA (24 W max.) or a total of 1 A~7 A (84 W max) at + 12V.

[karl_eller]

Wow, 1 Amp per header on a normal P5E? That's a hell of a lot more than I was expecting...

Eller

[MMaster23]

Hey guys,

Got my new Corsair Dominator 1066 RAM yesterday (P5E + Team Extreem = No Go .. ugh) and was benching a bit.

Got it up to 495x9 (memory 1188)... got me a SuperPi 1M of 10.3s. Not bad. Not bad at all.

However .. when I try to run 3Dmark .. it won't work 8 out of 10 times. At first I tought my Creative X-Fi was the problem, as the problem was gone when I took it out of it's PCI.

However now I can't get 3dmark to run again .. it crashes/freezes just after loading the first test. Playing Counter-Strike Source for 10 minutes does the same trick.

I have tried a billion settings in the BIOS, other drivers, both Vista and Server2k8 (my converted-workstation/OC-bench OS), newer beta drivers, other PCI-E slot for VGA, some Kingston PC6400 ram etc. Nothing seems to relate to this problem. I can't get it fixed.

Motherboard has been acting up before .. should I RMA it (takes forever, unless I ask for credit and buy a new one / other motherboard .. are their any other _GOOD_ x38 boards out there?)

Beside the crashing .. PC is sickenly smooth.

ps. also tried other VGA and also tried running outside the case (bare motherboard on cardboard. Oldskool) .. nothing helps. Ugh modern ASUS quality.

ps2. I also tried the pencil mod however it doesn't that great for me (almost nothing at all ..). Still seeing MASSIVE vcore drops in windows / under load. Had to push it up to 1.57V just to get 4.4ghz. Pretty sick for a 45nm.

Thanks all

[MMaster23]

Ps. for those who like ...

CPUZ @ 4.4ghz: http://valid.x86-secret.com/show_oc.php?id=318183

Benchmarkings:


(^^ click me click me ^^)

[delewin]

From page 2-30 of the P5E manual:

6. CPU, chassis, and optional fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN1~2, 3-pin PWR_FAN)
The fan connectors support cooling fans of 350 mA~1000 mA (24 W max.) or a total of 1 A~3.48 A (41.76 W max.) at +12V.

I haven't looked in the other manuals, but it would seem logical that the rating is similar.

Actually in the P5E3 WS Pro manual, on page 2-31, it lists even HIGHER numbers:
9. ... 350 mA~2000 mA (24 W max.) or a total of 1 A~7 A (84 W max) at + 12V.

I must be getting blind in my old age.

With that much juice available (84 W) you can really set up a wind tunnel in your tower case.

Thanks again,

David

[De1337]

After many many sets of ram, i finally found that 4x1gb pc8500 dominator ram, runs absolutely perfect on this board.

funny thing tho, they run at 2.00 bios, and are rated 2.2v on the sticks.

this ram voltage-issues-talk scares me a bit

[MMaster23]

After many many sets of ram, i finally found that 4x1gb pc8500 dominator ram, runs absolutely perfect on this board.

funny thing tho, they run at 2.00 bios, and are rated 2.2v on the sticks.

this ram voltage-issues-talk scares me a bit

ps .. forgot to post with my post .. my ram also is PC8500 dominator. Corsair ftw on this board.

Tempted to get another 2x1GB ... u getting good clocking speeds with 4 sticks?

[VinnyG]

Just flashed to BIOS 0601, and now my temps are messed, tried reverting to 0502 but hardware monitor is showing 12C CPU and fing 28C NB when its really 22C CPU and 48C NB, anyone else has had this wierd problem?

[mngdew]

After many many sets of ram, i finally found that 4x1gb pc8500 dominator ram, runs absolutely perfect on this board.

funny thing tho, they run at 2.00 bios, and are rated 2.2v on the sticks.

this ram voltage-issues-talk scares me a bit

I have 4x1gb of Crucial Ballistics. These sticks run at 1066mhz 5-4-4-12 with 2.02V(2.07V actual). I've heard many people with these sticks dying on them, and the stories scare me. I'm crossing my fingers (can't feel them anymore )they don't quit on me all of sudden.

[mngdew]

0601 is not good at all. They fixed one thing but broke many.
I was getting Prime 95 error on one core, but different core everytime, within 40 minutes, while 0502 gave me very stable o/c with the exact same bios settings.

[doakh]

Hey guys,

Got my new Corsair Dominator 1066 RAM yesterday (P5E + Team Extreem = No Go .. ugh) and was benching a bit.

I was looking at Team Xtreem particularly the PC2 9600 or PC2 10400. What memory would not work for you? What was the problem?

Thanks