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I recently upgraded my system. New components are
- Gigabyte GA-Z68X-UD3H-B3 (ver. 1.3, BIOS version F9 or F10, optimized defaults
- i5 2400
- 2 sticks of Kingston KVR1333D3N9 /4G (2x4GB) 1333MHz DDR3
- DVD LG GH22NS70 SATA
I also included:
- HDD Western Digital 640GB Caviar Black SATAII
- PSU Thermaltake W0151 QFan 500W
The problem is that the system reboots suddenly.
During windows clean installation (win7 64 ultimate sp1), the computer reboots during the "completing installation" stage, and I have to reinstall from the start.
When the installation succeeds, reboots happen rarely without the VGA driver.
I tried installing only Intel chipset driver ver. 1030, or all other drivers except VGA; in both cases, after Intel VGA driver installation (latest version 2559 from Intel, 2509 from Gigabyte and 2219 that I found somewhere in the web) the system becomes completely unstable. It reboots in 2' max using windows (even if the system is idle).
No blue screens at all (automatic reboot is disabled), and event logs write about power loss.
I already replaced the motherboard with a new one (same model), but the problem persists.
I checked the RAM modules, one at a time in socket DDR3_1, using memtest86+ 4.20 (12 passes each, no errors).
I tried:
- Another RAM module (Kingston KVR1333D3N9K3 2GB), and another PSU (Coolermaster 450W).
- Using another HDD (Seagate 500GB).
- Downgrading the memory speed in BIOS setting, to 800MHz.
- Another Keyboard and mouse.
- Build the system outside the case.
NOTHING - NO DIFFERENCE AT ALL.
Disabling C3/C6 processor state in BIOS makes system more stable, meaning that it reboots, but not immediately.
If an expansion VGA card is installed, I can use the processor graphics with no reboots at all (connecting the monitor cable in the onboard DVI or D-Sub Port, and disabling the expansion VGA via the Windows Device Manager).
No reboots using the expansion VGA too.
Is there anything else that I can try, to use the onboard graphics without an expansion VGA? Maybe a setting in BIOS?
I don't have another CPU to try.
What else do you suggest to do?
Thank you very much in advance, and excuse me for the very long (and maybe confusing) post.
- i5 2400
- 2 sticks of Kingston KVR1333D3N9 /4G (2x4GB) 1333MHz DDR3
- DVD LG GH22NS70 SATA
I also included:
- HDD Western Digital 640GB Caviar Black SATAII
- PSU Thermaltake W0151 QFan 500W
The problem is that the system reboots suddenly.
During windows clean installation (win7 64 ultimate sp1), the computer reboots during the "completing installation" stage, and I have to reinstall from the start.
When the installation succeeds, reboots happen rarely without the VGA driver.
I tried installing only Intel chipset driver ver. 1030, or all other drivers except VGA; in both cases, after Intel VGA driver installation (latest version 2559 from Intel, 2509 from Gigabyte and 2219 that I found somewhere in the web) the system becomes completely unstable. It reboots in 2' max using windows (even if the system is idle).
No blue screens at all (automatic reboot is disabled), and event logs write about power loss.
I already replaced the motherboard with a new one (same model), but the problem persists.
I checked the RAM modules, one at a time in socket DDR3_1, using memtest86+ 4.20 (12 passes each, no errors).
I tried:
- Another RAM module (Kingston KVR1333D3N9K3 2GB), and another PSU (Coolermaster 450W).
- Using another HDD (Seagate 500GB).
- Downgrading the memory speed in BIOS setting, to 800MHz.
- Another Keyboard and mouse.
- Build the system outside the case.
NOTHING - NO DIFFERENCE AT ALL.
Disabling C3/C6 processor state in BIOS makes system more stable, meaning that it reboots, but not immediately.
If an expansion VGA card is installed, I can use the processor graphics with no reboots at all (connecting the monitor cable in the onboard DVI or D-Sub Port, and disabling the expansion VGA via the Windows Device Manager).
No reboots using the expansion VGA too.
Is there anything else that I can try, to use the onboard graphics without an expansion VGA? Maybe a setting in BIOS?
I don't have another CPU to try.
What else do you suggest to do?
Thank you very much in advance, and excuse me for the very long (and maybe confusing) post.
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