Question about SuperMicro P4DP6-Q (P4DP6QBULK) Motherboard

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I have two Supermicro p4DP6 Q Motherboards and neither of it will turn on. I have tried 3 different power supplies in two different computer cases. The LED on the built in NIC is on when I plug the cable in. I do not find any documentation on having to ground the motherboard on one particular screw and the rest being isolated. I had a Supermicro P4DP6 before which has problems (no video) and before that all 4 LEDs next to CPU2 were on RED. The installed CPUs are 2 P4 XEON 3 GHz with 4 MBL2 cache each and HT. worked before just fine.

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  • ghoesl Feb 09, 2010

    Hi Whitefox4,

    I found the problem. it was the 8 pin connector I have to use in addition to the 24 pin power plug, which seem not to work. But also it seems that one power supply, I used, seems to be faulty, how bad I can not tell. would have to try to test on a different motherboard.
    But it seems that the video card (not the built in one) may be busted too, have to test it, because it could be that I have to change the BIOS Setting on slot3 in which I have the card installed, enabling scanning the ROM.




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Make sure the RAM memory working fine.
pull cmos cell from motherboard for 10 minutes so all settings goes to defaults.
Also reattach processor and its fan.
Remove pci cards from it if any then check.
Let me know if you need further assistance.
thanks for using FixYa.

Posted on Feb 09, 2010

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Well casing doesn't matter, but power supplies would be one of my suggestions as to testing. You must have a video card that is hooked up and working. You are getting no onboard video card with this motherboard, correct? It could either be video problem but doesn't look like it, probably a processor related issue, or even RAM memory problem could also hault power. Run a test on the PSU's with a voltmeter.

Posted on Feb 06, 2010

  • Keith Fox
    Keith Fox Feb 10, 2010

    Sounds like you have a well thought out plan to finding the solution to this :) Let me know how testing goes and I will get back to you, thanks!

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I assume you have lost the password.
Turn off the power supply or unplug it.
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this motherboard won't work with latest v2 cpu's from intel , until you upgrade your bios to 3.0 version.(you must plug your 8pin conector for cpu's , both of them !!!!!).So you must start the mb with an older cpu , then upgrade bios .

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SuperMicro X7DB8 - upgrading from two dual core to two quad core CPUs , carefully installed the quad cores and duct taped it all back together ... no post , no anything ... havent connected a speaker...


SuperMicro Support > SuperMicro X7DB8 Server Motherboard > Main Support page,

http://www.supermicro.com/products/motherboard/xeon1333/5000p/x7db8.cfm

Motherboard User's Manual download page,

http://www.supermicro.com/support/resources/results.cfm

[ MNL-0832 (English) ]

"CPU
Dual Intel 64-bit Xeon LGA 771 Quad Core processors, or Dual Core processors, at a Front Side Bus (FSB) of 1333Megahertz, or 1066MHz, with a system clock speed of 333MHz, or 267MHz."
(266MHz geez)

Intel 5000P (Blackford) motherboard chipset.

http://en.wikipedia.org/wiki/Intel_Xeon_chipsets#Dual_processor_Core-based_Xeon_chipsets

BIOS should automatically recognize the new processors.
Sometimes you have to restart the computer, and it may be up to 4 times.
Do agree with Jose though, and you may have to go into BIOS Setup, and set the parameters for the Processor (CPU), manually.

1) What is the sSpec number on the top of the processors?
2) Have you been FOLLOWING Anti-Static Precautions?

3) You are scaring me. What is the reference for the DUCT TAPE for?

4) No post?
Better make sure the Power Supply is good, and I mean test the three main voltages. Do not assume because fans spin, or LED's light, that the Power Supply does not have a weak voltage power rail.
(An economical multimeter around here is $5 to $12)

Does the Power Supply have enough power for TWO QUAD CORE processors?

http://en.wikipedia.org/wiki/List_of_Intel_Xeon_microprocessors#.22Yorkfield-CL.22_.2845_nm.29

Looking through the charts at the Core technologies listed, you can see SOME of the models can use Up To 150 Watts EACH.
(TDP. Thermal Design Point. W = Watts)

Means to me you better have at least a 500 Watt power supply, and I could be seriously underrating.

Better than an intelligent guess,
[Yeah, okay. Maybe 'intelligent' is going overboard, lol! ]

http://extreme.outervision.com/psucalculatorlite.jsp

5) Have the 4-pin ATX +12 Volt power cable attached to the motherboard, (By the 24-pin ATX main power cable connector), and the 8-pin EPS +12 Volt power cable? (Top right corner with motherboard installed in case)

http://www.playtool.com/pages/psuconnectors/connectors.html#atx12v4


http://www.playtool.com/pages/psuconnectors/connectors.html#eps8

6) Suggest speaker for BIOS Beep Codes, otherwise you are 'Flying Blind".

7) What kind of Thermal Paste are you using, and how did you apply it?

Not trying to be an ar-se, but if you do not answer all of my questions, do not bother to post back.

Post in a Comment.

Regards,
joecoolvette

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http://www.supermicro.com/Aplus/motherboard/Opteron6000/SR56x0/H8QG6-F.cfm

Under the Link and Resources heading, in the blue banner to the right, click on - Motherboard Manual

Page 32 of the PDF file. Page 2-10 for the manuals actual page,

2-7 Connector definitions:
Power Connectors

"A 24-pin main power supply connector (JWP1), and three 8-pin CPU PWR connectors (JWP2 / JWP3 /JWP4) on the motherboard.
These power connectors meet the SSI EPS 12V (Volt) specification.

In addition to the 24-pin ATX power connector, the 12V 8-pin CPU connectors at JWP2 / JWP3 / JWP4, MUST be connected to your power supply.

Warning: To prevent damage to the power supply or motherboard, please use a power supply that contains a 24-pin and three 8-pin
power connectors.

Be sure to connect these connectors to the 24-pin (JPW1) and the three 8-pin (JPW2,JPW3 and JPW4) power connectors on the motherboard.

Failure in doing so will void the manufacturer warranty on your power supply and motherboard."

So there you have it.

YES.

These,

http://www.playtool.com/pages/psuconnectors/connectors.html#eps8


NOT these,

http://www.playtool.com/pages/psuconnectors/connectors.html#pciexpress8

For additional questions please post in a Comment.

Regards,
joecoolvette

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Hi! I get Supermicro U2 server with X5DPA-GG MBO. Cpu and memor modules are ok, but when I turn on server I get long error beep. I took manual and saw that's overheat problem (or should be). But server...


This sounds like a video controller issue. Try booting with a different monitor. Ensure the cables are connected to the motherboard correctly (fans/power/led indicators). Try booting off of a single stick of RAM. Otherwise you may need to check the warranty status and RMA the motherboard to have it repaired/replaced.

1 beep: circuits reset - ready to power up
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8 beeps: video adapter issue

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1 Answer

The mother board will not post nor will the display initialize on a X7DVL-I Supermicro board.


Is the on/off button on the front of the computer-casing broken?
Take a volt-meter, and run a continuity-test.

Are the two wires from that button both properly connected to a pair of pins on the motherboard? If you disconnect the wires from those pins, and use a metal screwdriver to very briefly "short" the two pins, to simulate the pushing of the ON/OFF button, does the motherboard post? Do fans start to spin, or at least "twitch" a few degrees?

Have you tried a different power-supply?

Is there any lamp on the motherboard that lights-up anytime that
the power-supply is connected to AC power? Is that lamp on?

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