I have literally exhausted every option there is and searched every available forum online and yet my problem is still unsolved. Before I even made my purchase to upgrade my current computer, I checked INTELs website to make sure my hardware was compatible. There may be something I am missing, but I feel I have put in my do time and have exhausted all my optons.
My computer will not post at all after upgrading to an x6800 processor and the computer just sits at a blank screen after the power button is pressed. The fans all start up, but nothing ever posts to the screen
Before any conclusions are brought, please read my full description of my trouble shooting, as you will see I have exhausted many options.
My specifications before my upgrade to the X6800 are as follows. This machine was working with no trouble, but had difficulty playing Blu-Ray with the processor I currently had installed.
Motherboard: D975XBX Revision D27094-302 with Bios 354
Processor: Pentium D 920 SL94S 2.8GHZ.
Memory: 2x 1gb Patriot PSD22G800K PC2-6400 CL5
Memory: 2x 512 PNY 6464TDTHE-HS
VideoCard: Sapphire HD3650 512MB DDR3
PowerSupply: Antec NEOHD 380watt using 1x4 power and using the 4 Pin to 8 Pin MotherBoard Power Adapter provided with the D975xbx.
This was posting with no problem.
With the installation of the X6800, it will not post so I have tried many combinations of hardware and bioses, as you will see here after.
Processor: Intel Core 2 Extreme 6800 SL9S5
PowerSupply: I originally used the Antec NEOHD with the 8 pin adapter but feared that might be my problem so i upgraded to a Thermaltake Toughpower 850Watt ESA using the 1x4 motherboard power and 8 pin motherboard power cable from PSU.
I've used two different Graphics Cards.
Sapphire HD3650 512MB DDR3
Gigabyte HD4650 1GB DDR2
I have tried Several combinations of memory with no post. I have used the first dual channel with no posts then used the second dual channel slots with no post. I've tried three different dual channel memory pairs including; PNY Mentioned before, Patriot as mentioned before, along with Samsung 2x 1gb PC2-5300U-555-12-zz
Motherboard & Bios: D975XBX Revision D27094-302 (Originally Bios354 on first boot, then upgradeded to Bios1487 then downgraded to Bios1334) The bios updates were successful as this was verified using the Pentium D processor to post and then enter the bios utility to verify the correct bios had been flashed. Once the X6800 was put in the motherboard, it would not post. I had on several occasions pulled the power cord and pulled the battery for an hour to reset the CMOS, but this still did not work.
Once the Pentium D is placed into the LGA775 socket, the computer posts immediately. Once the X6800 processor is placed in the motherboard, the computer never posts. If I even uninstall the memory with the X6800 in place, I don't even get memory beeps. If I place the Pentium D in the socket with no memory, I get the appropriate memory code beeps.
I have no other add in cards plugged in and have no HardDrives plugged into the motherboard. I have a Sony Optiarc Blu-Ray Rom that I have plugged in on occasion for Bios Updates, but overall, nothing has been plugged into the motherboard but CPU, Video Card, Memory.
Oh, I also took the X6800 to work and put the processor into a work computer and it posted in a Dell Machine properly. So I know the X6800 is a working processor and it is indeed the right processor.
I've even gone as far as getting a voltometer and checking all my rails. On both the Antec NEOHD and the Thermaltake Toughpower, all rails were showing appropriate voltages.
I'm at a loss for ideas. I am contemplating returning the X6800 and getting a Pentium Core 2 Duo but I'm almost afraid I'll run into the same problem.
as far as i know, the xbx (1) supports Core 2 Duo CPU's since Rev. 3.04 properly, earlier Revisions, like yours (3.02) only works with a hardware modification, here is a link with further informations:
PS: How much did you pay for the CPU?
PS2: I still need help here: http://communities.intel.com/message/39850#39850
I did come across that forum. The only thing that bothers me, is that INTEL's processor combatablity page says that all revisions of the D975XBX board work with the conroe processors, especially the X6800. Which is why i bought the expensive X6800. So if that is the case, INTEL is wrong.
And the thing that sucks is there are plenty of guys running the D975XBX and X6800, but they never state the version of the motherboard or bios version they are running.
I might have to mod my motherboard, but with the money and time i've invested into it already, a little bit of soldering is nothing.
AnyBody Else have any suggestions?
I'm afraid Axel is right. A buddy of mine gave me a D975XBX and an X6800 a couple of years ago. They wouldn't POST together, even with the latest BIOS. I eventually paired the X6800 with a D965WH, and used the D975XBX and a Pentium-D to build a system for a coworker. Intel has changed their compatibility site for some reason. At the time when I looked it up, the AA# on the board was too old to use with ANY Core 2-based CPUs.
I have MSI Board that was suppose to use the x6800 with the updated bios. I updated it then installed the x6800 with all the excitement of a child on Christmas morning and nothing happened. It powered up and sat there, I was very disappointed. The board had its own built in video card, but I was already using Nvidia 8400 GS with the unit on another processor. However, I had to take my upgraded hardware out of the unit to get it to post. after the board recognized the x6800 I reinstalled my toys and I began blazing a trail. I don't know if any of this applies to your situation, but perhaps if you went back to the basics and removed your toys like I did and install the x6800 you will have the same results (I hope so)?