Apologies posted this in the hardware and not tech support. Hi guys, Been trying to sort this for the guts of a week now but to no avail. Basically ive been getting random power offs on my custom built PC, it varys from 5 minutes to over 3 hours and i just cant find the issue! Its become very frustrating. Ive brought it to a local repair shop and they stress tested the pc and it didnt crash, they advised me it could be my version of windows so i did a full wipe and its still happening. i used different HDD's too. I even swapped out the power cables and changed the socket from which it was plugged into, still the same. so my question is, with the stress test done and memtest done too, could it be the PSU? SPECS: Quad Core Q6600 Asus P35ne-SLI Mobo 4gb Patriot ram 2 x Seagate Barracuda 500gb ATI radeon HD 4870 1gb GFX Antec True Power Quattro 850 Watt PSU
Stress tested... Did you try running with C1E and EIST disabled, just to rule out the power saving features ?
Ran the test yesterday after a fresh install of windows 7. nothing at all came up. Might need to explain a bit too, i had an illegitimate version of windows 7 for quite sometime. and the tech guys hinted that maybe it had something to do with that, now im not a noob when it comes to computers but i didnt think windows could do this, even after a fresh install...
Nope, its like someone cuts the power, i thought it might of been the power socket but the monitor or my speaker system dont power cycle..
I seem to remember the release candidate 2 version of windows 7 would randomly shut down for the month after the testing period, but I expect it would go through normal procedures. Have you tried unplugging/disabling everything that isn't essential and seeing how long it stays on for?
But how would this affect me even after i made a clean instal with a legitimate copy? Yeah i ran it in safe mode and it ws fine, and even with the windows memory checker it was fine. but like i said it varys in time of shutdowns hmmm, you say windows used to do this. I had some files on my old HDD that i saved (Save games, photos etc) Would this have a reference to the illegitimate software on it, and be causing the crashes on the new copy?
If the OS was responsible it would probably shut down properly, not suddenly. I expect something isn't quite right with the hardware/drivers.
Most people are pointing to the PSU. So ill get in contact with Antec and see what they say. Its got a 5 year warranty so it cant hurt.
Before you do, try having nothing but your MB, CPU and Ram and boot disk plugged in, use onboard gfx if possible and disable everything that is unnecessary in the bios, just in case it's not the PSU, otherwise you could be waiting for weeks for the PSU to return only to find it's not the problem.
Is your elec supply prone to surges? I think after a few surges they become less effective but not sure how it would affect the system, I'd think it just wouldn't protect it, not shut it down. Could try plugging it into the mains directly. Have you checked your temps?
Yeah when i thought it was overheating i ran it, CPU was 42c. and GFX i cant remember but it wasnt that hotter then idle at 65c if i recall. Ill try the direct mains when i get back home, stupid work
Might even be the north or southbridge on the motherboard, try opening the case and pointing a fan at the motherboard.
Trying it now. Here are what event viewer had to say about my last crash The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly. System - Provider [ Name] Microsoft-Windows-Kernel-Power [ Guid] {331C3B3A-2005-44C2-AC5E-77220C37D6B4} EventID 41 Version 2 Level 1 Task 63 Opcode 0 Keywords 0x8000000000000002 - TimeCreated [ SystemTime] 2011-04-09T19:24:14.938000000Z EventRecordID 2619 Correlation - Execution [ ProcessID] 4 [ ThreadID] 8 Channel System Computer Mjolnir - Security [ UserID] S-1-5-18 - EventData BugcheckCode 0 BugcheckParameter1 0x0 BugcheckParameter2 0x0 BugcheckParameter3 0x0 BugcheckParameter4 0x0 SleepInProgress false PowerButtonTimestamp 0 Second Error: Audit events have been dropped by the transport. 0 - System - Provider [ Name] Microsoft-Windows-Eventlog [ Guid] {fc65ddd8-d6ef-4962-83d5-6e5cfe9ce148} EventID 1101 Version 0 Level 2 Task 101 Opcode 0 Keywords 0x4020000000000000 - TimeCreated [ SystemTime] 2011-04-09T19:24:27.168400000Z EventRecordID 443 Correlation - Execution [ ProcessID] 320 [ ThreadID] 1084 Channel Security Computer Mjolnir Security - UserData - AuditEventsDropped Reason 0 Third Error: Event filter with query "SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA "Win32_Processor" AND TargetInstance.LoadPercentage > 99" could not be reactivated in namespace "//./root/CIMV2" because of error 0x80041003. Events cannot be delivered through this filter until the problem is corrected. - System - Provider [ Name] Microsoft-Windows-WMI [ Guid] {1edeee53-0afe-4609-b846-d8c0b2075b1f} [ EventSourceName] WinMgmt - EventID 10 [ Qualifiers] 49152 Version 0 Level 2 Task 0 Opcode 0 Keywords 0x80000000000000 - TimeCreated [ SystemTime] 2011-04-09T19:26:04.000000000Z EventRecordID 577 Correlation - Execution [ ProcessID] 0 [ ThreadID] 0 Channel Application Computer Mjolnir Security - EventData //./root/CIMV2 SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA "Win32_Processor" AND TargetInstance.LoadPercentage > 99 0x80041003 any ideas?
