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990-FXA-UD3 - Overclock CPU disables SLI?

post #1 of 10
9/13/11 at 1:37pm
Thread Starter 
So I'm wondering if this is a power supply issue....MOBO issue....or what.

Basically I got my RMA'ed GTX 560 back from EVGA yesterday and all was well.

Problem is -- at random times when I boot up, during the post an error message comes up saying "your machine has experience boot errors due to overclocking."

This happens even when running at stock clocks. At which point it automatically sets the HT link for 3000mhz and doesn't let me change ANY BIOS settings.

When it loads into windows, it doesn't recognize my 2nd GFX card. Basically I have to remove and reseat the card every time I boot up or this happens.

Is my PCIe16_2 slot dead or something? What's the deal here?

I have an 850w corsair power supply.
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AMD x6 1100T @ 3910mhz Gigabyte GA-990FXA-UD3 EVGA GTX 560 2gb model, SLI Kingston HyperX DDR3 (2x 2gb) 
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post #2 of 10
9/13/11 at 1:42pm
Thread Starter 
To be clear...it SEEMS like my system is drawing the necessary power from the PSU (for my 2nd card) but doesn't know what the power is going to, and therefore downclocks my system significantly.

The card works fine I've already tried it by itself. I **NEVER** had this problem with my original 2 sli cards though (exact same model as these == EVGA GTX 560 2GB)
The Green Machine!
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CPUMotherboardGraphicsRAM
AMD x6 1100T @ 3910mhz Gigabyte GA-990FXA-UD3 EVGA GTX 560 2gb model, SLI Kingston HyperX DDR3 (2x 2gb) 
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WD 750gb LG Blu-ray combo Windows 7 Home Edition Asus VG236 
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The Green Machine!
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CPUMotherboardGraphicsRAM
AMD x6 1100T @ 3910mhz Gigabyte GA-990FXA-UD3 EVGA GTX 560 2gb model, SLI Kingston HyperX DDR3 (2x 2gb) 
Hard DriveOptical DriveOSMonitor
WD 750gb LG Blu-ray combo Windows 7 Home Edition Asus VG236 
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Corsair 850W NZXT Gamma 4x CoolerMaster Green LED Fans 
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post #3 of 10
9/13/11 at 2:37pm
Thread Starter 
Seems like any time I change my CPU or NB clock settings my PC stops recognizing my 2nd GPU.

At which point I have to remove it and boot up. Then shut down and re-install my 2nd GFX card -- at which point it boots up fine and recognizes my 2nd card instantly.

This happens even when going from overclocked (3.8ghz cpu / 2800mhz NB) to stock 3.3ghz 2000mhz NB.
The Green Machine!
(13 items)
  		  
CPUMotherboardGraphicsRAM
AMD x6 1100T @ 3910mhz Gigabyte GA-990FXA-UD3 EVGA GTX 560 2gb model, SLI Kingston HyperX DDR3 (2x 2gb) 
Hard DriveOptical DriveOSMonitor
WD 750gb LG Blu-ray combo Windows 7 Home Edition Asus VG236 
PowerCase
Corsair 850W NZXT Gamma 4x CoolerMaster Green LED Fans 
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The Green Machine!
(13 items)
  		  
CPUMotherboardGraphicsRAM
AMD x6 1100T @ 3910mhz Gigabyte GA-990FXA-UD3 EVGA GTX 560 2gb model, SLI Kingston HyperX DDR3 (2x 2gb) 
Hard DriveOptical DriveOSMonitor
WD 750gb LG Blu-ray combo Windows 7 Home Edition Asus VG236 
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Corsair 850W NZXT Gamma 4x CoolerMaster Green LED Fans 
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post #4 of 10
9/13/11 at 4:23pm
Thread Starter 
Quote:
Originally Posted by LesPaulLover View Post
Seems like any time I change my CPU or NB clock settings my PC stops recognizing my 2nd GPU.

At which point I have to remove it and boot up. Then shut down and re-install my 2nd GFX card -- at which point it boots up fine and recognizes my 2nd card instantly.

This happens even when going from overclocked (3.8ghz cpu / 2800mhz NB) to stock 3.3ghz 2000mhz NB.
I seem to have narrowed the problem down to the following:

Any time I change my CPU clock or voltage, the "error due to overclocking" message comes up during the BIOS post, and it notifies me that I've been reset to stock settings; except for some reason the HT link, which gets auto-set to 2600 or 3000mhz for some reason.

Is this a sign my board is dying or something?

God something gives me the feeling that half the ******* parts I bought were refurbished / RMAed parts being sold as new.

I mean really....what are the chances that a **NEW** GFX card, power supply, liquid cooling setup, motherboard, and RAM would **ALL** have problems?

All ordered from the same place -- all at the same time.
The Green Machine!
(13 items)
  		  
CPUMotherboardGraphicsRAM
AMD x6 1100T @ 3910mhz Gigabyte GA-990FXA-UD3 EVGA GTX 560 2gb model, SLI Kingston HyperX DDR3 (2x 2gb) 
Hard DriveOptical DriveOSMonitor
WD 750gb LG Blu-ray combo Windows 7 Home Edition Asus VG236 
PowerCase
Corsair 850W NZXT Gamma 4x CoolerMaster Green LED Fans 
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The Green Machine!
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CPUMotherboardGraphicsRAM
AMD x6 1100T @ 3910mhz Gigabyte GA-990FXA-UD3 EVGA GTX 560 2gb model, SLI Kingston HyperX DDR3 (2x 2gb) 
Hard DriveOptical DriveOSMonitor
WD 750gb LG Blu-ray combo Windows 7 Home Edition Asus VG236 
PowerCase
Corsair 850W NZXT Gamma 4x CoolerMaster Green LED Fans 
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post #5 of 10
6/6/12 at 2:04pm
buddy I just bought same motherboard and going for NVIDIA SLI, I just hope i dont get some problems frown.gif
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post #6 of 10
6/6/12 at 2:09pm
Guys, Phenoms are known to require high overclock to not bottleneck any dual GPU setup, just saying.

On the OP problem, does it do the same with just 1 card ?
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My first 3D rig :)
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Asus DVD +/-R Corsair H100 Windows Seven Ultimate x64 Asus ASUS VG278H 27'' 120Hz 3D 
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post #7 of 10
6/7/12 at 9:44am
Have you updated to latest BIOS ?
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2x 500GB Seagate ST3500418AS 7200.12 RAID 0 died Corsair H70 Windows 7 64 bit 
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My Computer
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CPUMotherboardGraphicsRAM
AMD FX-8350 4.0 GHz Gigabyte GA-990FXA UD5 Rev.1.0, BIOS F12a Asus HD7790 DC2-1GB - Core 1250 / Mem 1750 2x 4GB Hynix 1333CL9 1.5v @ 1600 9-9-9-24-1T 1.65V 
Hard DriveOptical DriveCoolingOS
2x 500GB Seagate ST3500418AS 7200.12 RAID 0 died Corsair H70 Windows 7 64 bit 
MonitorKeyboardPowerCase
Acer V193HQV 18.5" 1366x768 60Hz Microsoft General Keyboard Corsair TX850 V2 CM Elite 430 Black 
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post #8 of 10
6/14/12 at 5:44am
Ok guys I have bought same motherboard, same GPU SLI (2 x MSi 560 Ti Hawk 950Mhz), same CPU (AMD Phenom II x4) and same PSU !! biggrin.gif
And I got huge problem in games which require CPU support. Both GPUs are working only for 45-55% in games like Battlefield 3 and Witcher 2 mad.gif However I got amazing nice score in Heaven Benchmark (2000). I didnt try overclock anything, but according to LesPaulLover's experience and I am not sure if it is safe....

Like Abs.exe told, this is probably CPU-related problem. I bought it only 6 months ago and i though it is strong cpu frown.gif But here I am, CPU is just probably not feeding my SLI enough.
Edited by svkmichael - 6/14/12 at 9:11am
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post #9 of 10
6/14/12 at 11:14am
Just update your motherboard's BIOS to the latest one and check again !
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Hard DriveOptical DriveCoolingOS
2x 500GB Seagate ST3500418AS 7200.12 RAID 0 died Corsair H70 Windows 7 64 bit 
MonitorKeyboardPowerCase
Acer V193HQV 18.5" 1366x768 60Hz Microsoft General Keyboard Corsair TX850 V2 CM Elite 430 Black 
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My Computer
(15 items)
  		  
CPUMotherboardGraphicsRAM
AMD FX-8350 4.0 GHz Gigabyte GA-990FXA UD5 Rev.1.0, BIOS F12a Asus HD7790 DC2-1GB - Core 1250 / Mem 1750 2x 4GB Hynix 1333CL9 1.5v @ 1600 9-9-9-24-1T 1.65V 
Hard DriveOptical DriveCoolingOS
2x 500GB Seagate ST3500418AS 7200.12 RAID 0 died Corsair H70 Windows 7 64 bit 
MonitorKeyboardPowerCase
Acer V193HQV 18.5" 1366x768 60Hz Microsoft General Keyboard Corsair TX850 V2 CM Elite 430 Black 
MouseAudio
Microsoft General Optical Mouse V2.0 [Onboard] Realtek HD 889 Dolby Home Theater 
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post #10 of 10
6/14/12 at 2:12pm
Quote:
Originally Posted by sumitlian View Post

Just update your motherboard's BIOS to the latest one and check again !

UPDATE !!!

It looks like overclocking to 4050 MHz really helped me a lot! I just played one map with FPS around 90 with Ultra settings. Of course there was time with 53 FPS, but it was lowest FPS. My both GPUs working for 88% !!
Edited by svkmichael - 6/14/12 at 2:25pm
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