would a core failure on a multicore computer cause system instability?
Say for example, one of the cores in a quad core computer overheated and died, would the system compensate by routing all operations to the remaining 3 cores, or would the computer be inoperable? If the system compensates, could it compensate for 3 of 4 cores failing?
cpu operating-systems core
asked Jan 17 '13 at 19:14
wonton
275213
add a comment |
Say for example, one of the cores in a quad core computer overheated and died, would the system compensate by routing all operations to the remaining 3 cores, or would the computer be inoperable? If the system compensates, could it compensate for 3 of 4 cores failing?
cpu operating-systems core
asked Jan 17 '13 at 19:14
wonton
275213
If you have a 4 cylinder car and one of the cylinders breaks, do you expect it to run fine on the remaining 3?
– Hennes
Jan 17 '13 at 19:43
2
@Hennes: Cylinders cannot be compared to CPU cores, given that it's possible to turn off any given core manually. It's more similar to four engines in a single car.
– grawity
Jan 17 '13 at 20:57
... or trying to develop a software product with a staff of three programmers when you had expected to have four.
– Scott
Nov 23 '18 at 11:05
add a comment |
Say for example, one of the cores in a quad core computer overheated and died, would the system compensate by routing all operations to the remaining 3 cores, or would the computer be inoperable? If the system compensates, could it compensate for 3 of 4 cores failing?
cpu operating-systems core
asked Jan 17 '13 at 19:14
wonton
275213
Say for example, one of the cores in a quad core computer overheated and died, would the system compensate by routing all operations to the remaining 3 cores, or would the computer be inoperable? If the system compensates, could it compensate for 3 of 4 cores failing?
cpu operating-systems core
cpu operating-systems core
asked Jan 17 '13 at 19:14
wonton
275213
asked Jan 17 '13 at 19:14
wonton
275213
asked Jan 17 '13 at 19:14
wonton
275213
asked Jan 17 '13 at 19:14
wonton
275213
asked Jan 17 '13 at 19:14
wonton
275213
275213
If you have a 4 cylinder car and one of the cylinders breaks, do you expect it to run fine on the remaining 3?
– Hennes
Jan 17 '13 at 19:43
2
@Hennes: Cylinders cannot be compared to CPU cores, given that it's possible to turn off any given core manually. It's more similar to four engines in a single car.
– grawity
Jan 17 '13 at 20:57
... or trying to develop a software product with a staff of three programmers when you had expected to have four.
– Scott
Nov 23 '18 at 11:05
add a comment |
If you have a 4 cylinder car and one of the cylinders breaks, do you expect it to run fine on the remaining 3?
– Hennes
Jan 17 '13 at 19:43
2
@Hennes: Cylinders cannot be compared to CPU cores, given that it's possible to turn off any given core manually. It's more similar to four engines in a single car.
– grawity
Jan 17 '13 at 20:57
... or trying to develop a software product with a staff of three programmers when you had expected to have four.
– Scott
Nov 23 '18 at 11:05
If you have a 4 cylinder car and one of the cylinders breaks, do you expect it to run fine on the remaining 3?
– Hennes
Jan 17 '13 at 19:43
If you have a 4 cylinder car and one of the cylinders breaks, do you expect it to run fine on the remaining 3?
– Hennes
Jan 17 '13 at 19:43
2
2
@Hennes: Cylinders cannot be compared to CPU cores, given that it's possible to turn off any given core manually. It's more similar to four engines in a single car.
– grawity
Jan 17 '13 at 20:57
@Hennes: Cylinders cannot be compared to CPU cores, given that it's possible to turn off any given core manually. It's more similar to four engines in a single car.
– grawity
Jan 17 '13 at 20:57
... or trying to develop a software product with a staff of three programmers when you had expected to have four.
– Scott
Nov 23 '18 at 11:05
... or trying to develop a software product with a staff of three programmers when you had expected to have four.
– Scott
Nov 23 '18 at 11:05
add a comment |
4 Answers
4
active
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It largely depends on the exact failure (and the system architecture, but I'll assume you're talking about a standard x86 based system).
In short, the system will not function properly - with exact symptoms ranging from appearing to be okay "most of the time" to a complete failure to boot.
There is no mechanism to ignore the bad core at run time, and as such anything that attempts to execute there risks failing/corruption/crashing.
answered Jan 17 '13 at 19:48
BowlesCR
2,527718
I have a broken core and my computer works, i disabled it via BIOS
– FreeSoftwareServers
Apr 8 '18 at 9:25
add a comment |
No. Your computer is not supposed to start-up at all if any core has failed.
If any core failure is detected at testing and packaging stage, it can be disabled like those AMD 3-core processors.
answered Jan 17 '13 at 19:26
segfault
1,09021526
add a comment |
A CPU core cannot be compared to a car engine. Depending on the system BIOS, it may or may not detect a core failure. Most probably it will still route operations to the core and fail. The BIOS may allow for discrete core disabling (trial and error on each core), in which case you will be able to operate normally. At the end of the day, time to replace the CPU
answered Jan 11 '14 at 0:17
Paul
111
add a comment |
I can say that I have a i7 6700k with 3 out of 4 cores working. If I have all 4 cores active, it will just blue screen when I start my computer. However, when I go into BIOS and change to only 3 active cores, it will perform normally. I have no idea how the core was damaged as I bought this computer broken for a cheap price and fixed it.
answered Nov 23 '18 at 10:20
Scott Jones
1
add a comment |
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4 Answers
4
active
oldest
votes
4 Answers
4
active
oldest
votes
active
oldest
votes
active
oldest
votes
It largely depends on the exact failure (and the system architecture, but I'll assume you're talking about a standard x86 based system).
In short, the system will not function properly - with exact symptoms ranging from appearing to be okay "most of the time" to a complete failure to boot.
There is no mechanism to ignore the bad core at run time, and as such anything that attempts to execute there risks failing/corruption/crashing.
answered Jan 17 '13 at 19:48
BowlesCR
2,527718
I have a broken core and my computer works, i disabled it via BIOS
– FreeSoftwareServers
Apr 8 '18 at 9:25
add a comment |
It largely depends on the exact failure (and the system architecture, but I'll assume you're talking about a standard x86 based system).
In short, the system will not function properly - with exact symptoms ranging from appearing to be okay "most of the time" to a complete failure to boot.
There is no mechanism to ignore the bad core at run time, and as such anything that attempts to execute there risks failing/corruption/crashing.
answered Jan 17 '13 at 19:48
BowlesCR
2,527718
I have a broken core and my computer works, i disabled it via BIOS
– FreeSoftwareServers
Apr 8 '18 at 9:25
add a comment |
It largely depends on the exact failure (and the system architecture, but I'll assume you're talking about a standard x86 based system).
In short, the system will not function properly - with exact symptoms ranging from appearing to be okay "most of the time" to a complete failure to boot.
There is no mechanism to ignore the bad core at run time, and as such anything that attempts to execute there risks failing/corruption/crashing.
answered Jan 17 '13 at 19:48
BowlesCR
2,527718
It largely depends on the exact failure (and the system architecture, but I'll assume you're talking about a standard x86 based system).
In short, the system will not function properly - with exact symptoms ranging from appearing to be okay "most of the time" to a complete failure to boot.
There is no mechanism to ignore the bad core at run time, and as such anything that attempts to execute there risks failing/corruption/crashing.
answered Jan 17 '13 at 19:48
BowlesCR
2,527718
answered Jan 17 '13 at 19:48
BowlesCR
2,527718
answered Jan 17 '13 at 19:48
BowlesCR
2,527718
answered Jan 17 '13 at 19:48
BowlesCR
2,527718
2,527718
I have a broken core and my computer works, i disabled it via BIOS
– FreeSoftwareServers
Apr 8 '18 at 9:25
add a comment |
I have a broken core and my computer works, i disabled it via BIOS
– FreeSoftwareServers
Apr 8 '18 at 9:25
I have a broken core and my computer works, i disabled it via BIOS
– FreeSoftwareServers
Apr 8 '18 at 9:25
I have a broken core and my computer works, i disabled it via BIOS
– FreeSoftwareServers
Apr 8 '18 at 9:25
add a comment |
No. Your computer is not supposed to start-up at all if any core has failed.
If any core failure is detected at testing and packaging stage, it can be disabled like those AMD 3-core processors.
answered Jan 17 '13 at 19:26
segfault
1,09021526
add a comment |
No. Your computer is not supposed to start-up at all if any core has failed.
If any core failure is detected at testing and packaging stage, it can be disabled like those AMD 3-core processors.
answered Jan 17 '13 at 19:26
segfault
1,09021526
add a comment |
No. Your computer is not supposed to start-up at all if any core has failed.
If any core failure is detected at testing and packaging stage, it can be disabled like those AMD 3-core processors.
answered Jan 17 '13 at 19:26
segfault
1,09021526
No. Your computer is not supposed to start-up at all if any core has failed.
If any core failure is detected at testing and packaging stage, it can be disabled like those AMD 3-core processors.
answered Jan 17 '13 at 19:26
segfault
1,09021526
answered Jan 17 '13 at 19:26
segfault
1,09021526
answered Jan 17 '13 at 19:26
segfault
1,09021526
answered Jan 17 '13 at 19:26
segfault
1,09021526
1,09021526
add a comment |
add a comment |
A CPU core cannot be compared to a car engine. Depending on the system BIOS, it may or may not detect a core failure. Most probably it will still route operations to the core and fail. The BIOS may allow for discrete core disabling (trial and error on each core), in which case you will be able to operate normally. At the end of the day, time to replace the CPU
answered Jan 11 '14 at 0:17
Paul
111
add a comment |
A CPU core cannot be compared to a car engine. Depending on the system BIOS, it may or may not detect a core failure. Most probably it will still route operations to the core and fail. The BIOS may allow for discrete core disabling (trial and error on each core), in which case you will be able to operate normally. At the end of the day, time to replace the CPU
answered Jan 11 '14 at 0:17
Paul
111
add a comment |
A CPU core cannot be compared to a car engine. Depending on the system BIOS, it may or may not detect a core failure. Most probably it will still route operations to the core and fail. The BIOS may allow for discrete core disabling (trial and error on each core), in which case you will be able to operate normally. At the end of the day, time to replace the CPU
answered Jan 11 '14 at 0:17
Paul
111
A CPU core cannot be compared to a car engine. Depending on the system BIOS, it may or may not detect a core failure. Most probably it will still route operations to the core and fail. The BIOS may allow for discrete core disabling (trial and error on each core), in which case you will be able to operate normally. At the end of the day, time to replace the CPU
answered Jan 11 '14 at 0:17
Paul
111
answered Jan 11 '14 at 0:17
Paul
111
answered Jan 11 '14 at 0:17
Paul
111
answered Jan 11 '14 at 0:17
Paul
111
111
add a comment |
add a comment |
I can say that I have a i7 6700k with 3 out of 4 cores working. If I have all 4 cores active, it will just blue screen when I start my computer. However, when I go into BIOS and change to only 3 active cores, it will perform normally. I have no idea how the core was damaged as I bought this computer broken for a cheap price and fixed it.
answered Nov 23 '18 at 10:20
Scott Jones
1
add a comment |
I can say that I have a i7 6700k with 3 out of 4 cores working. If I have all 4 cores active, it will just blue screen when I start my computer. However, when I go into BIOS and change to only 3 active cores, it will perform normally. I have no idea how the core was damaged as I bought this computer broken for a cheap price and fixed it.
answered Nov 23 '18 at 10:20
Scott Jones
1
add a comment |
I can say that I have a i7 6700k with 3 out of 4 cores working. If I have all 4 cores active, it will just blue screen when I start my computer. However, when I go into BIOS and change to only 3 active cores, it will perform normally. I have no idea how the core was damaged as I bought this computer broken for a cheap price and fixed it.
answered Nov 23 '18 at 10:20
Scott Jones
1
I can say that I have a i7 6700k with 3 out of 4 cores working. If I have all 4 cores active, it will just blue screen when I start my computer. However, when I go into BIOS and change to only 3 active cores, it will perform normally. I have no idea how the core was damaged as I bought this computer broken for a cheap price and fixed it.
answered Nov 23 '18 at 10:20
Scott Jones
1
answered Nov 23 '18 at 10:20
Scott Jones
1
answered Nov 23 '18 at 10:20
Scott Jones
1
answered Nov 23 '18 at 10:20
Scott Jones
1
1
add a comment |
add a comment |
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If you have a 4 cylinder car and one of the cylinders breaks, do you expect it to run fine on the remaining 3?
– Hennes
Jan 17 '13 at 19:43
2
@Hennes: Cylinders cannot be compared to CPU cores, given that it's possible to turn off any given core manually. It's more similar to four engines in a single car.
– grawity
Jan 17 '13 at 20:57
... or trying to develop a software product with a staff of three programmers when you had expected to have four.
– Scott
Nov 23 '18 at 11:05