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How do I pinpoint the hardware issue I am having after upgrades?

Posted on 2008-11-02
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Last Modified: 2013-11-09
Hello,

I posted this same issue a while ago, and after quite a few good responses I didnt give adequete time to the issue and it was deleted.  I still have not found a solution and am seeking help.

I will explain in detail what happened (hardware configuration is listed below).  I ordered additional RAM, a new PSU, a new CPU,  and an additional Video Card to run a Crossfire configuration.  When i installed the new equipment the computer would not Post.  I am just presented with a black screen and what concerns me the most is that it seems like ALL the fans (CPU fan, GPU on board fan on card, other system fans) in the computer are running much slower than usual; i'd say about 30% their intended speed.

New System Configuration that DID NOT work:
CPU: AMD Phenom 9850 BLACK EDITION 2.5GHz Socket AM2+ 125W
GPU: 2 x DIAMOND Viper 3870PE4512SB Radeon HD 3870 512MB 256-bit GDDR4 PCI Express 2.0 x16
PSU: Antec TruePower Quattro TPQ-1000 1000W ATX12V / EPS12V SLI Certified CrossFire Ready
MoBo: DFI LANPARTY DK 790FX-M2RS AM2+/AM2 AMD 790FX ATX AMD Motherboard
RAM:  CORSAIR XMS2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400)

OLD System Configuratoin that DID WORK:
CPU: AMD Phenom (first gen with errata issue)
GPU: DIAMOND Viper 3870PE4512SB Radeon HD 3870 512MB 256-bit GDDR4 PCI Express 2.0 x16
PSU: OCZ GameXStream OCZ700GXSSLI 700W ATX12V SLI Certified CrossFire Ready
MoBo: DFI LANPARTY DK 790FX-M2RS AM2+/AM2 AMD 790FX ATX AMD Motherboard
RAM: CORSAIR XMS2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400)

I have dissembled everything back to step 1 which includes a motherboard inside the case with no connections to power or other hardware.  I have reconfigured and installed everything to the originally settings and still the same issue.  At this point i'm assuming some piece of hardware - i'm thinking the motherboard is damaged.  I dont hear any beep errors when there is no memory installed, or keybaord & mouse.

I read in an article that Alienware actually returned the exact same video cards because they were defective.  I installed the new PSU, CPU, and GPU al at the same time so i'm not sure which piece of hardware actually led to the problem.
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Question by:khaji00
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by:jamietoner
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Sounds like something may have happened to the motherboard. Have you tried resetting bios defaults with the jumper?
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by:khaji00
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jamietoner, i have tried resetting the settings with the jumper and same issue.
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by:jamietoner
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Try the motherboard outside the case but if you still get the same issue I'd say its a bad motherboard.
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by:khaji00
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Just tried it, with different CPUs, different GPUs, and different PSUs, inside and outside the case.

Nothing even shows up on the screen, i have tried 2 different monitors, both VGA and DVI, even HDMI.  Nothing.  Just fans spinning slower than usual
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by:jamietoner
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That just leaves the motherboard.
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I need to double check, but as far as I know, the Nvidia 790 does NOT support Crossfire.
It will run a single ATI card, but for dual cards, you need to go SLI
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I am running ALL AMD/ATI on the spider platform.  I got everything up and running by buying a new motherboard.  After extensive testing it looked like the only piece of hardware not working was the motherboard.

coral47, you're correct.  Nvidia supports SLI, ATI supports Crossfire, with 2 or more cards.
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>> you're correct

hmmmm... cross posting,  Maybe they forgot to put the " i " in the specs from the link above {shrugs}
Glad you got it working. Enjoy.   : )
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