My PC keeps crashing when under load. Help!

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4 Nov 2005
Posts
617
Gosh, it's been no less than 8 years since I last posted on here. I used to be a keen overclocker/system builder, but eventually was happy with my rig, stopped playing Flight Simulator, stopped overclocking and lost interest. Since then, I have upgraded a few parts: the power supply, RAM etc to keep it working and relatively current.

So I've started getting crashes under load (games or using Photoshop). Not BSODs, but the screen freezes and the speakers let out a terrible wailing sound. This has happened once when not under load too.

I've stripped the PC down totally, including taking out the mobo, cleaned up every component, replaced the battery and put it back together... twice Still bad.

I'm running Coretemp, and there is nothing scary. Temps under load don't go above 50C, usually mid 40s, and I put the fans on full blast when gaming etc. Mid 30s when not under load. Occasionally RAM gets to 75% (12Gb) when in photoshop, and CPU hits 100%. the PSU is never challenged. It's times like that when it crashes.

My Rig:
Intel Core i5 2500K
Mobo: Asus P8Z68-V LX
RAM: 16Mb G-Skill RipJaws PC3-12800
GPU: Radeon HD5770 - yeah its 8 or 9 years old
PSU: 600Watt Corsair
2 Hard drives and Boot drive is a 128Mb SSD

I'm certain there is a component failing, but what? I'm on a budget, so don't want to do a total rebuild, just identify the culprit and replace. I've checked RAM using mdsched.exe and that seems fine. My best guess is the GPU. How do I check that?

Any help would be appreciated.

Thanks
 
I know you say you've removed the overclock and it's still doing it how is the ram set? Have you loaded xmp settings if so, make sure the ram is getting the correct voltage, and also bump up the uncore voltage a little, that's for the memory controller in your chip, usually freezing without a bsod is ram related, crashes with a bsod or instant reboot is cpu.

This time, the right thread lol
Thanks - will check RAM voltage etc.
 
If crashes happen also in Photoshop GPU isn't likely cause.
CPU-motherboard-RAM is more likely.

What's the particular PSU model?
Not all Corsairs are quality PSUs.

And doesn't Event viewer show any more serious errors with time stamp close to crashes?

It's a Corsair HX620W. Checking my records, that must have been in there about 8-9 years also...
 
Didn't take long while playing an undemanding game. kernel-power 41 - bugcheckcode 0 - task 63. I've had 107 of these in the past 3 months.

- System
-
Provider
[ Name] Microsoft-Windows-Kernel-Power
[ Guid] {331C3B3A-2005-44C2-AC5E-77220C37D6B4}
EventID 41
Version 6
Level 1
Task 63
Opcode 0
Keywords 0x8000400000000002
- TimeCreated
[ SystemTime] 2018-08-24T20:03:05.075079800Z
EventRecordID 30340
Correlation
-
Execution
[ ProcessID] 4
[ ThreadID] 8
Channel System
Computer Richard-PC
- Security
[ UserID] S-1-5-18
- EventData
BugcheckCode
0
BugcheckParameter1 0x0
BugcheckParameter2 0x0
BugcheckParameter3 0x0
BugcheckParameter4 0x0
SleepInProgress 0
PowerButtonTimestamp 0
BootAppStatus 0
Checkpoint 0
ConnectedStandbyInProgress false
SystemSleepTransitionsToOn 1
CsEntryScenarioInstanceId 0
BugcheckInfoFromEFI false
CheckpointStatus 0

I've done a bit of googling and the conclusions are wide and varied - ie Power Plan, PSU, CPU, RAM and Drivers in that order of frequency of issue resolution. My power plan has not changed for years, and I have checked and updated all the drivers. So I conclude it is a piece of hardware, but which one? We know both the PSU and CPU are old. The RAM was upgraded a few years ago to get photoshop to run better.

Running out of steam today, but I have a multimeter hidden away somewhere, so may try this https://www.wikihow.com/Check-a-Power-Supply as a next step. Any other ideas?
 
Quick update. I don't believe the PSU is at fault. All the voltages are bang on. Which leaves the CPU. I'm beginning to think I am going to have to dip into savings as a new CPU means a new mobo, means probably new RAM (mine are DDR3)... means, well pretty much a total upgrade. Suppose 8 years isn't bad in terms of depreciation.

Away for 2 weeks now. Time to mull things over.
 
Further update. I decided to bite the bullet and upgrade the Mobo, CPU and RAM to modern day standards. My work in Lightroom will benefit with the boost in CPU. Given it a bit of a stress test in LR and gaming and it seems solid as a rock (fingers crossed), and surprisingly runs a little bit cooler.

Mobo - MSi Z370-A pro
CPU - Intel i7 8700k
RAM - 16 Gb Corsair Vengeance DDR4 3000Mhz

Thanks for your help. In November, I will travel to Spain and test the CPU and RAM on my mother's PC. She should benefit from the part that works!
 
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