Is it necessary to run Prime95 for 24 hours?

[K-Hype]

I have heard countless times that you must run prime95 for 24 hours in order to determine if your overclock is stable. But do you really need to do that I mean I got more things to do on my computer than to run prime95 all day. I have overclocked my CPU to 4.5 GHz and I ran Prime95 for 6 hours I think that is enough right? What do you guys think? Should I run it for another 2 hours or is that good enough?
My specs:
Intel Core i5 4690K
Gigabyte Z97MX G1 Gaming 5
EVGA 16GB DDR3 2400MHz
Kingston HyperX 3K 120GB SSD
Western Digital Caviar Black 1TB
Seagate Barracuda 320GB
EVGA GTX 970 SSC ACX 4GB
NZXT Source 210 Chassis
Corsair CX600 Power Supply
Windows 7 Professional 64 bit

 

[sportsfanboy]

I know the feeling, it gwts sort of addicting. I would overclock my toaster if i could. I even overclocked my monitor, by forcing a fast refresh rate in control panel

 

[K-Hype]

Now I got my Uncore to 4.2GHz with the Core Clock still at 4.5GHz I'll let it run a couple of hours and see if it BSOD. Overclocking a monitor is very tricky I usually just buy the monitor with the cheapest price. Well that didn't turn out too well and it didn't even last more than 6 months. Now I'm using my Sony TV as a monitor luckily Nvidia has DSR so I can play older games at 4K resolution that don't support anti-aliasing. I can't increase the refresh rate that much even if I did it still says 60Hz in game.

 

[sportsfanboy]

makes sense, i didn't do anything crazy, just 65hz over 60hz stock.

So no luck with stock cache and a 46 multiplier?

 

[K-Hype]

Nope no luck yet but 4.5GHz on the core and 4.2GHz cache was a success ran it over 7 hours without any errors or BSOD. 4.6GHz is pretty tough for my chip maybe I will try bit more VRIN and core voltage together and see if it will be stable. Man i seem to be stress testing more than actually using my computer. If it outright fails even with more voltage I'll stick with 4.5GHz since its pretty fast already and 4.6GHz isn't really going to make much of a difference.

 

[sportsfanboy]

haha i know what you mean. i spent quite a few hours trying to get all my overclock profiles set up. but after things are all set you're good.

i have a winter 4.9 profile, a not yet spring profile, and a summer nice and low voltage, cool running profile.

It took a bit but it's worth it

 

[K-Hype]

Yeah 4.9GHz must be super fast even strong enough to give you good frame rates in Arma 2 and 3 since those 2 games only uses 1 -2 cores.

 

[K-Hype]

I'm back again just an update on how many overclocking process was going. 4.6GHz was a no go even at 1.315V with stock cache speed. I even turned up the VRIN Voltage to 1.900V and CPU Ring Voltage to 1.100V from 1.050V and it was no good. So 4.5GHz was the maximum I got. I got my Uncore to 4.3GHz so I might shoot for 4.5GHz Uncore to make it a 1:1 ratio and see if it BSOD even with all these voltage increases. Also the H100i GTX is going to be a hassle for my case the screw holes on the case made not match the holes on the radiator. So basically now I have to buy a new case as well maybe a Corsair Obsidian 750D then upgrade my power supply to a Seasonic X850 gold rated power supply since I do plan on buying another GTX 970 for SLI in the future. I might have to hold back on the liquid cooler for awhile. I'm guessing 1.4V should be good for 4.6GHz but the temperatures will be way too high for the cooler master hyper 212 eve to handle. 4.7GHz fails to boot any lower than 1.35V which i felt was kinda weird and disappointing to see.

 

[sportsfanboy]

each processor has an overclocking wall, that the amount of voltage needed to push even 100 or 200mhz just isn't worth it. The devils cannon i5's are about the 4.5 area, so i would say you have a normal or a pretty good chip.

 

[K-Hype]

each processor has an overclocking wall, that the amount of voltage needed to push even 100 or 200mhz just isn't worth it. The devils cannon i5's are about the 4.5 area, so i would say you have a normal or a pretty good chip.

I guess so because i had my ram speed at 2400MHz and still get 4.5GHz stabled which is pretty impressive. Too bad 4.6GHz wouldn't get stabled even if I lowered my ram speed to 1066MHz maybe my motherboard wasn't good enough lol. I was wondering whether the Corsair Obsidian 450D would be a better choice as a case upgrade its cheaper than the 750D. Also should I spend that much on a power supply and get something cheaper like a X750 or an EVGA 750 Watt G2. I don't have a lot of money to waste but I want to make my PC look clean and professional.

 

[sportsfanboy]

i'm not a big case guru, so i can't help you there, I'm still rocking an old antec 900. I'm a bit old school so i still think Seasonic is a good choice for the money. So that might be a good question to post in the component section about PSU's.

 

[K-Hype]

i'm not a big case guru, so i can't help you there, I'm still rocking an old antec 900. I'm a bit old school so i still think Seasonic is a good choice for the money. So that might be a good question to post in the component section about PSU's.

Cool thanks for all the help I'm going to select the best answer now.

 

[sportsfanboy]

Yw