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Diagnosis dilemma: Is my ASUS P5B Deluxe faulty or is it the RAM or my E6600??

post #1 of 11
Thread Starter 
Any suggestions or ideas on this would be very much appreciated...

My work PC (spec in signature) started to play up a couple of weeks ago. The problem is that when switched on, all drives, the gaphics cards (I actually have a secondary GeForce 6600 to power a third screen) and all fans fire up as expected but there is no beep and no post (also, the 7950 GX2 fans don't max out for a short while as they usually would just before posting). At first, this only happened one in every few attempts to switch on the PC but became increasingly regular until it only booted one in every ten attempts, then nothing - that is, all powers up but no post.

I'm sure it's not the memory at fault and have tried each stick individually to no avail. I have taken the system apart, vacuumed the dust off each part and reinstalled the lot. I was getting no system crashes at all before this so I doubt my CPU is at fault. However I cannot be sure of anything at the moment. I suspect the motherboard is to blame and I'm about to buy a new one now (as the one I ordered as a replacement last Tuesday has still not turned up and I need to use the PC urgently for work). What do you think? Should I buy another CPU or try new RAM? I've also tried the system without the 7950 GX2 (only the 6600) but get the same problem.

Thanks in advance...
570RY73113R R1G
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core2Duo Q6600 Asus Striker Extreme 2 x GeForce 7600 GS 4Gb (4 x 1Gb) A-Data Vitesta 1000+ 
Hard DriveOptical DriveOSMonitor
2 x Raptor 74Gb + 2 x 500Gb 2 x 16x DVD+/-RW's Vista 64 & XP 32 SP2 3 x Raven Formac 2010 + 1 x Fujitsu Siemens 22" WS 
KeyboardPowerCaseMouse
Cherry - black (don't know model) SS-600HT (600W) (Mac G5 rip-off) Logitech MX Revolution 
Mouse Pad
Icemat 2 
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570RY73113R R1G
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core2Duo Q6600 Asus Striker Extreme 2 x GeForce 7600 GS 4Gb (4 x 1Gb) A-Data Vitesta 1000+ 
Hard DriveOptical DriveOSMonitor
2 x Raptor 74Gb + 2 x 500Gb 2 x 16x DVD+/-RW's Vista 64 & XP 32 SP2 3 x Raven Formac 2010 + 1 x Fujitsu Siemens 22" WS 
KeyboardPowerCaseMouse
Cherry - black (don't know model) SS-600HT (600W) (Mac G5 rip-off) Logitech MX Revolution 
Mouse Pad
Icemat 2 
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post #2 of 11
Go into your Bios and make sure you select PCI-E as your primary boot display. Sounds like it can't decide which to initiate during POST.
 
X79 Build
(13 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7-6950X @ 4.0Ghz Asus Rampage V Extreme [Bios:3101] 2x EVGA GeForce Titan X SC Editions in SLI 32GB (4×8) Corsair Dominator Platinums (3000Mhz) 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 950 Pro 512GB M.2 Nvme 2x 256GB Vertex 4 SSD (RAID-0) 2x 2TB Seagate Barracuda [Storage] Pioneer BDR-207DBK Blu-ray Writer 
CoolingOSMonitorPower
Corsair H105 (Push/Pull) Windows 10 Pro x64 2x 27" Asus PG278Q ROG Swift 144hz  Corsair AX1500i Digital ATX 80 Plus Titanium 
CaseAudio
Lian Li PC-O8WX ATX Cube Case Logitech Z906 5.1 Surround 
CPUMotherboardGraphicsRAM
i7-3930K (C2) @ (4.6Ghz) Asus Rampage IV Extreme X79 (Bios 3204) 3x EVGA GTX780Ti's SC Editions 32GB (4x8GB) G-Skill TridentX 2400Mhz 
Hard DriveHard DriveOptical DriveCooling
2x 256GB OCZ Vertex 4's (RAID-0) 2x 2TB Seagate Barracuda 7200.14 64MB Cache Pioneer BDR-207DBK Blu-ray Writer Corsair H105 (Push/Pull) 
OSMonitorPowerCase
Win7 Pro 64Bit & Win10 Pro 64Bit Asus ROG Swift (2560x1440 @144hz) Corsair AX1200 + Corsair RED sleeved cables Coolermaster Cosmos II Ultra 
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X79 Build
(13 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7-6950X @ 4.0Ghz Asus Rampage V Extreme [Bios:3101] 2x EVGA GeForce Titan X SC Editions in SLI 32GB (4×8) Corsair Dominator Platinums (3000Mhz) 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 950 Pro 512GB M.2 Nvme 2x 256GB Vertex 4 SSD (RAID-0) 2x 2TB Seagate Barracuda [Storage] Pioneer BDR-207DBK Blu-ray Writer 
CoolingOSMonitorPower
Corsair H105 (Push/Pull) Windows 10 Pro x64 2x 27" Asus PG278Q ROG Swift 144hz  Corsair AX1500i Digital ATX 80 Plus Titanium 
CaseAudio
Lian Li PC-O8WX ATX Cube Case Logitech Z906 5.1 Surround 
CPUMotherboardGraphicsRAM
i7-3930K (C2) @ (4.6Ghz) Asus Rampage IV Extreme X79 (Bios 3204) 3x EVGA GTX780Ti's SC Editions 32GB (4x8GB) G-Skill TridentX 2400Mhz 
Hard DriveHard DriveOptical DriveCooling
2x 256GB OCZ Vertex 4's (RAID-0) 2x 2TB Seagate Barracuda 7200.14 64MB Cache Pioneer BDR-207DBK Blu-ray Writer Corsair H105 (Push/Pull) 
OSMonitorPowerCase
Win7 Pro 64Bit & Win10 Pro 64Bit Asus ROG Swift (2560x1440 @144hz) Corsair AX1200 + Corsair RED sleeved cables Coolermaster Cosmos II Ultra 
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post #3 of 11
Reset CMOS at least, and try removing your GeForce 6600 just to see.

Also, if it's booting 1/10 attempts, I would think it may be the power supply having issues handling your system. Unfortunately you don't have it listed in your sig, so I'm thinking it's bad..?
post #4 of 11
have you tried the obvious diagnostics yet? Unplug everything but the absolute necessities. Pull the Mobo out of the case and set it on a box while testing (eliminate any shorting). Pull the BIOS battery and reset everything. Reseat the CPU. If all that does nothing, it's either the Mobo or the video card most likely.
TITAN-6
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600K @ 4GHZ ASRock Extreme 3 Gen 3 Gigabyte Nvidia GTX 570 8GB G.skill Sniper DDR3 1866 
Hard DriveOptical DriveCoolingOS
Crucial M4 CT128M4SSD2 2.5" 128GB SATA III MATSHITA BD-CMB UJ160 Blu Ray DVD writer Cooler Master Hyper 212+ Windows 7 x64 
MonitorMonitorKeyboardPower
Sceptre 24" LCD BENQ 3D 24" LCD Logitech G510 Corsair 750W HX professional single rail 
CaseMouseMouse PadAudio
CM Storm Sniper Razer Naga left-handed version None Onboard 
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TITAN-6
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600K @ 4GHZ ASRock Extreme 3 Gen 3 Gigabyte Nvidia GTX 570 8GB G.skill Sniper DDR3 1866 
Hard DriveOptical DriveCoolingOS
Crucial M4 CT128M4SSD2 2.5" 128GB SATA III MATSHITA BD-CMB UJ160 Blu Ray DVD writer Cooler Master Hyper 212+ Windows 7 x64 
MonitorMonitorKeyboardPower
Sceptre 24" LCD BENQ 3D 24" LCD Logitech G510 Corsair 750W HX professional single rail 
CaseMouseMouse PadAudio
CM Storm Sniper Razer Naga left-handed version None Onboard 
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post #5 of 11
Thread Starter 
I can't get into BIOS as it won't post. I have tried each graphics card individually but no joy (the system usually works perfectly with both cards). The PSU is a Seasonic SS 600HT Active PFC F3 and this award winning PSU was supposed to be the ultimate in reliable power when I bought it a couple of years ago. I am sure it's nothing to do with the PSU or the graphics cards.

I have reseated the CPU and reset the CMOS but not pulled the battery. I'll do this now...
570RY73113R R1G
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core2Duo Q6600 Asus Striker Extreme 2 x GeForce 7600 GS 4Gb (4 x 1Gb) A-Data Vitesta 1000+ 
Hard DriveOptical DriveOSMonitor
2 x Raptor 74Gb + 2 x 500Gb 2 x 16x DVD+/-RW's Vista 64 & XP 32 SP2 3 x Raven Formac 2010 + 1 x Fujitsu Siemens 22" WS 
KeyboardPowerCaseMouse
Cherry - black (don't know model) SS-600HT (600W) (Mac G5 rip-off) Logitech MX Revolution 
Mouse Pad
Icemat 2 
  hide details  
Reply
570RY73113R R1G
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core2Duo Q6600 Asus Striker Extreme 2 x GeForce 7600 GS 4Gb (4 x 1Gb) A-Data Vitesta 1000+ 
Hard DriveOptical DriveOSMonitor
2 x Raptor 74Gb + 2 x 500Gb 2 x 16x DVD+/-RW's Vista 64 & XP 32 SP2 3 x Raven Formac 2010 + 1 x Fujitsu Siemens 22" WS 
KeyboardPowerCaseMouse
Cherry - black (don't know model) SS-600HT (600W) (Mac G5 rip-off) Logitech MX Revolution 
Mouse Pad
Icemat 2 
  hide details  
Reply
post #6 of 11
Thread Starter 
Just pulled the battery and powered up but still I get no post. If it was the CPU or RAM surely the board would post, wouldn't it? It hasn't even been running overclocked for months!
570RY73113R R1G
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core2Duo Q6600 Asus Striker Extreme 2 x GeForce 7600 GS 4Gb (4 x 1Gb) A-Data Vitesta 1000+ 
Hard DriveOptical DriveOSMonitor
2 x Raptor 74Gb + 2 x 500Gb 2 x 16x DVD+/-RW's Vista 64 & XP 32 SP2 3 x Raven Formac 2010 + 1 x Fujitsu Siemens 22" WS 
KeyboardPowerCaseMouse
Cherry - black (don't know model) SS-600HT (600W) (Mac G5 rip-off) Logitech MX Revolution 
Mouse Pad
Icemat 2 
  hide details  
Reply
570RY73113R R1G
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core2Duo Q6600 Asus Striker Extreme 2 x GeForce 7600 GS 4Gb (4 x 1Gb) A-Data Vitesta 1000+ 
Hard DriveOptical DriveOSMonitor
2 x Raptor 74Gb + 2 x 500Gb 2 x 16x DVD+/-RW's Vista 64 & XP 32 SP2 3 x Raven Formac 2010 + 1 x Fujitsu Siemens 22" WS 
KeyboardPowerCaseMouse
Cherry - black (don't know model) SS-600HT (600W) (Mac G5 rip-off) Logitech MX Revolution 
Mouse Pad
Icemat 2 
  hide details  
Reply
post #7 of 11
Thread Starter 
Sod it... Just bought another P5B Deluxe for delivery tomorrow (I'll probably end up with 2). I pray the replacement resolves the issue!
570RY73113R R1G
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core2Duo Q6600 Asus Striker Extreme 2 x GeForce 7600 GS 4Gb (4 x 1Gb) A-Data Vitesta 1000+ 
Hard DriveOptical DriveOSMonitor
2 x Raptor 74Gb + 2 x 500Gb 2 x 16x DVD+/-RW's Vista 64 & XP 32 SP2 3 x Raven Formac 2010 + 1 x Fujitsu Siemens 22" WS 
KeyboardPowerCaseMouse
Cherry - black (don't know model) SS-600HT (600W) (Mac G5 rip-off) Logitech MX Revolution 
Mouse Pad
Icemat 2 
  hide details  
Reply
570RY73113R R1G
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core2Duo Q6600 Asus Striker Extreme 2 x GeForce 7600 GS 4Gb (4 x 1Gb) A-Data Vitesta 1000+ 
Hard DriveOptical DriveOSMonitor
2 x Raptor 74Gb + 2 x 500Gb 2 x 16x DVD+/-RW's Vista 64 & XP 32 SP2 3 x Raven Formac 2010 + 1 x Fujitsu Siemens 22" WS 
KeyboardPowerCaseMouse
Cherry - black (don't know model) SS-600HT (600W) (Mac G5 rip-off) Logitech MX Revolution 
Mouse Pad
Icemat 2 
  hide details  
Reply
post #8 of 11
have u pulled ur video card pull the card and plug it into onboard i take out all but one stick of ram and reset cmos one more time
Coeus
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD 940 Msi 970a-g46 2x xfx 7970 G Skill NQ PC1333 4x2 
Hard DriveOptical DriveOSMonitor
Seagate 7200.9 160gb need Windows 10 64bit Sharp 32inch 
Power
Thermaltake 1350 
  hide details  
Reply
Coeus
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD 940 Msi 970a-g46 2x xfx 7970 G Skill NQ PC1333 4x2 
Hard DriveOptical DriveOSMonitor
Seagate 7200.9 160gb need Windows 10 64bit Sharp 32inch 
Power
Thermaltake 1350 
  hide details  
Reply
post #9 of 11
and if it post restart and put every thing back in
Coeus
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD 940 Msi 970a-g46 2x xfx 7970 G Skill NQ PC1333 4x2 
Hard DriveOptical DriveOSMonitor
Seagate 7200.9 160gb need Windows 10 64bit Sharp 32inch 
Power
Thermaltake 1350 
  hide details  
Reply
Coeus
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD 940 Msi 970a-g46 2x xfx 7970 G Skill NQ PC1333 4x2 
Hard DriveOptical DriveOSMonitor
Seagate 7200.9 160gb need Windows 10 64bit Sharp 32inch 
Power
Thermaltake 1350 
  hide details  
Reply
post #10 of 11
Thread Starter 
DISASTER. I have bought and installed a new motherboard and I still get exactly the same problem! HELP... I'm starting to suspect it may be the CPU or PSU that's faulty
570RY73113R R1G
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core2Duo Q6600 Asus Striker Extreme 2 x GeForce 7600 GS 4Gb (4 x 1Gb) A-Data Vitesta 1000+ 
Hard DriveOptical DriveOSMonitor
2 x Raptor 74Gb + 2 x 500Gb 2 x 16x DVD+/-RW's Vista 64 & XP 32 SP2 3 x Raven Formac 2010 + 1 x Fujitsu Siemens 22" WS 
KeyboardPowerCaseMouse
Cherry - black (don't know model) SS-600HT (600W) (Mac G5 rip-off) Logitech MX Revolution 
Mouse Pad
Icemat 2 
  hide details  
Reply
570RY73113R R1G
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core2Duo Q6600 Asus Striker Extreme 2 x GeForce 7600 GS 4Gb (4 x 1Gb) A-Data Vitesta 1000+ 
Hard DriveOptical DriveOSMonitor
2 x Raptor 74Gb + 2 x 500Gb 2 x 16x DVD+/-RW's Vista 64 & XP 32 SP2 3 x Raven Formac 2010 + 1 x Fujitsu Siemens 22" WS 
KeyboardPowerCaseMouse
Cherry - black (don't know model) SS-600HT (600W) (Mac G5 rip-off) Logitech MX Revolution 
Mouse Pad
Icemat 2 
  hide details  
Reply
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