I7 4790k @ 4.7 ghz
I7 4790k @ 4.7 ghz
If my uncore ratio at 45 causes instability in my 47 ratio cpu speed, can I simply increase the voltage on my cpu ratio to restore stability? I think this might help, but there are several possible reasons for the issue. First, what is the VCore/Current Voltage being supplied to the CPU? Second, you could always reduce the uncore ratio. Third, what temperature is your CPU operating at—you’re clearly using water cooling.
xFeaRDom :
culzone :
If my uncore ratio at 45 causes instability in my 47 ratio cpu speed, can I simply increase the voltage on my cpu ratio to restore stability? I think it might help, but there are several factors that could affect this. First, what is your VCore/Current Voltage being supplied to the CPU? Second, you could always reduce the uncore ratio. Third, what temperature is your CPU operating at—you're clearly using water cooling. 1.3v on the Vcore, max temp 72C at full load with prime95
culzone :
xFeaRDom :
If my uncore ratio at 45 causes instability in my 47 ratio cpu speed, can I simply increase the voltage on my CPU ratio to restore stability?
I think it might help, but there are several factors that could lead to instability.
First, what is your VCore/Current Voltage being supplied to the CPU?
Second, you could always reduce the uncore ratio.
Third, what temperature is your CPU operating at—you’re clearly using water cooling.
Currently I’m running 1.3v on the Vcore, with a max temp of 72°C at full load.
I’d consider raising it slightly to 1.4, but only if that doesn’t help. If not, lowering the clock speed to around 4.6GHz might be better.
I wouldn't suggest exceeding 1.38 for continuous use.
I managed to reach a core speed of 5Ghz at 1.35v core, but most of my stability issues stemmed from the cache/ringbus speed. Since each CPU is unique, you'll need to determine the best balance between core and cache speeds.
My cache is limited to 4.3Ghz, yet I'm only using 1.1v through it.
I wouldn't suggest going beyond 1.38 for continuous use.
I managed to reach a core speed of 5Ghz at 1.35v core, but most of my stability issues were linked to cache/ringbus speeds. Since each CPU behaves differently, you'll need to balance your core and cache speeds accordingly.
My cache is limited to 4.3Ghz, yet I'm only using 1.1v through it.
I experimented with both the cache and Vcore at 1.33v and it now seems stable, but I plan to conduct further tests.