How to find out if the CPU / vidyuha / RAM was overclocked?

Question

Iron

When buying parts for a PC, I decided to save money by buying used ones, just such nasty parts. I really wanted not to lose the gained productivity and spend less money (the budget is limited).
Probably the eternal question: how to find out if these parts were overclocked if nothing is visible externally and provided that the overclocking was rolled back (that is, the part is not overclocked now)?

Answer 1

Finding out whether there was overclocking is impossible. Well, except for obvious jambs such as traces of soldering or burnt / darkened elements.
How overclocking affects depends on overclocking.
I would generally be careful not to take video cards without a residual guarantee from the store - they are too flimsy. From the dump of the chip, which for a couple of months is "cured" by warming up, to power circuits that could already be killed by mining even at standard frequencies. I do not remember about the type-setting memory, which can also add surprises even after a year or two in normal operation.
Processors - you can take it calmly, it is difficult to kill it. But it is possible - from a high voltage (noticeably higher than the nominal, 1.8V instead of 1.3V standard, for example), the crystal degrades, which first affects the deterioration of stability during overclocking, then on regular operation, if no measures were taken. Starting with the Intel 1156 socket, the memory controller degrades from voltages above 1.65V on the memory.
Memory - can also be damaged by very high voltage. But if the full test of memtest passes, then it will continue to work. As far as I know - either dies immediately or far in the future from old age.
Overclocking on a regular or slightly raised voltage - paradoxically - can even extend the life of the hardware. Albeit indirectly: overclocked systems are usually equipped with much better power supplies and good cooling.

Answer 2

No way. Acceleration wear is not what you think. Overclocked components live the same life as stock ones.

Answer 3

Now the overclocking procedure itself is much safer than it was 5-10 years ago.
In most cases, in case of unsuccessful software overclocking, the vidyahi \ processors \ memory themselves reset the settings to safe ones. Unless, of course, a hardcore type of hardware voltmod was made, and so on. Then you need to look towards swollen capacitors, burnt circuits, etc.
In general, run the computer in a complex test such as the stability test in AIDA64 + separately, I still see it in furmark - if there are no overheating or blue screens, then everything is ok.

Answer 4

It is much more reliable to buy iron from someone who directly said that he had overclocking "for every day", which he checked with many hours of stress tests and there were no overheatings. Firstly, there is no factory defect for such hardware, and secondly, you already know the overclocking settings for yourself;) My personal practice has shown that in overclocking right to the stop (after 24 hours of linpak the temperature is only 1 degree below overheating) Core 2 Duo lives 5 years of daily games, SandyBridge is at least as good, but not much time has passed for newer games. And, by the way, after the degradation of the processors of the motherboard, everything is like new, if it was blown normally. Well, overclocking and overheating are burnt contacts, unstable operation even at base frequencies.
Well, it’s impossible to determine that iron used to accelerate 100% in any way. For overclocking "for every day" is no different from the fact that you would have been sold such a percentage from the factory, extreme overclocking for a record is overclocking for 1 time, then the iron is usually thrown out because it died, but overclocking with crooked hands is, alas, a lottery, Yes. But there is not much such iron in the NSC on a used one, as in other cities I don’t know.

Answer 5

Don't check at all. When buying, ALWAYS run the test and preferably check all the functions and all the ports on the motherboard. Look at the appearance for overheating and swelling of the capacitors. Here's how lucky you really are.