I am new to the this forum and was hoping to find some help with my miner. I have trouble keeping it online, sometimes it runs for an hour sometimes a day, with the longest ever being 1 week. When the Phoenix Miner 5.1c does crash sometimes the command prompt window is just closed and other times the computer has rebooted. Here is my setup.
HP desktop AMD A10, 4GB RAM (have another 4GB ordered), 600W PSU, Windows 10 64-bit.
2x - RX5700 GPU
Radeon driver 20.10.1
I have tried different settings for the cards themselves but nothing has seemed to make a difference, including what I found in previous posts on here, 1350MHz Core, 1750MHz Mem, 780mv. Thanks for any suggestions anyone has.
Can you post the last 20-25 lines of your logfile after this happens? Maybe we can find some clues there

I did get information for the crash from windows event viewer. Here are the details.
Log Name: Application
Source: Application Error
Date: 11/9/2020 9:48:28 AM
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
User: N/A
Computer: QuadCorePC
Description:
Faulting application name: Radeonsoftware.exe, version: 10.1.2.1808, time stamp: 0x5f89d5ff
Faulting module name: Qt5Core.dll, version: 5.13.0.0, time stamp: 0x5d2cc490
Exception code: 0xc0000005
Fault offset: 0x00000000001f1d42
Faulting process id: 0x1f40
Faulting application start time: 0x01d6b68bfb92d738
Faulting application path: C:\Program Files\AMD\CNext\CNext\Radeonsoftware.exe
Faulting module path: C:\Program Files\AMD\CNext\CNext\Qt5Core.dll
Report Id: d80651cd-4a78-4ff9-85a0-6cc258525334
Faulting package full name:
Faulting package-relative application ID:
Event Xml:
<Event xmlns="
http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Application Error" />
<EventID Qualifiers="0">1000</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>100</Task>
<Opcode>0</Opcode>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2020-11-09T14:48:28.1746076Z" />
<EventRecordID>12131</EventRecordID>
<Correlation />
<Execution ProcessID="0" ThreadID="0" />
<Channel>Application</Channel>
<Computer>QuadCorePC</Computer>
<Security />
</System>
<EventData>
<Data>Radeonsoftware.exe</Data>
<Data>10.1.2.1808</Data>
<Data>5f89d5ff</Data>
<Data>Qt5Core.dll</Data>
<Data>5.13.0.0</Data>
<Data>5d2cc490</Data>
<Data>c0000005</Data>
<Data>00000000001f1d42</Data>
<Data>1f40</Data>
<Data>01d6b68bfb92d738</Data>
<Data>C:\Program Files\AMD\CNext\CNext\Radeonsoftware.exe</Data>
<Data>C:\Program Files\AMD\CNext\CNext\Qt5Core.dll</Data>
<Data>d80651cd-4a78-4ff9-85a0-6cc258525334</Data>
<Data>
</Data>
<Data>
</Data>
</EventData>
</Event>