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1 long and 2 short beeps on POST

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#1 Robanada


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Posted 20 March 2014 - 09:19 PM

The problem: There's no video when I turn on the machine. Everything sounds normal except that there is a long beep and two short beeps when the machine POSTs. There have been NO hardware modifications to the machine for about 8 months.
Manuals I can find online indicate that this is a video error.
What I've tried:
  • Removing all USB devices (all devices in fact)
  • Clearing the CMOS
  • Booting without a videocard
  • Booting with a brand new videocard
  • Testing each stick of ram individually in each individual slot
What I'm thinking:
Either the mobo or the PSU are dead. The PSU is <12 months old, and the mobo is ~6 years old, so I think it's more likely the mobo rather than the PSU. However, it's easier to pick up a spare PSU and test it, so I'll do that saturday, but in the meantime, is there anything else I should try before biting the bullet and getting a new mobo/CPU/ram? Nobody makes LGA 775 mobos anymore. 
Full specs if anyone's interested:
  • Mobo: MSI P7N SLI Platinum (6 years old)
  • CPU: Intel core 2 quad q6700 (6 years old)
  • Video: XFX ATI Radeon HD 5770 (4 years old), also tried with a Gigabyte Geforce GTX 660 (<1 day old)
  • PSU: Thermaltake (Purepower?) 500W (~8 months old)
  • RAM: 4x 2gb sticks I picked up as a shell shocker off of newegg about. Never came with heatspreaders so no real logos/no idea on the manufacturer. (5 years old)
  • Peripherals: There is a DVD-Rom drive attached (>7 years old)

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#2 jhayz


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Posted 21 March 2014 - 02:15 AM

Hi Robanada. Just checked the online specifications for your Motherboard model and looking at the Detailed for PCI slots (x16) shows 2 different interface. http://www.msi.com/product/mb/P7N_SLI_Platinum__P7N_Zilent.html#?div=Detail

Bult_ar_org.gifSlots • Three PCI Express x16 slots
- the mazarine slot PCI Express x 16 slot (PCI_E1) supports PCIE 2.0 x 16 mode.
- the two light-blue PCI Express x 16 slots (PCI_E2 & PCI_E3) support PCI Express x 8 mode only.
- supports SLI technology.


Was any of this slots tested already?


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