RMCLOCK How much is too much?

I have a T5200 which is suppose to be volted at 1.175V but I can put it to 0.950V with RMClock and then run 2xPrime95 or SuperPi and Prime95at the same time without the system crashing. Do you think this is bad for the CPU? Or will it eventually crash?

 

how long have you run 2x of prime95? you should try doing it overnight if possible....preferably a full 24 hours.

 

like 20 minutes so far, but after an hour shouldn't it be enough? if its going to crash, ill most likely crash in an hour, right?

And one question, does undervolting damage like the cpu or anything?

 

No it doesn't damage it. If you run Prime/Orthos for a good 8 hours w/o errors, then it is pretty much fine. 20 minutes is not enough to weed out some very small errors the undervolting might cause

 

An overnight full load test is recommended.

With a T2250 @ 1.73MHz 0.95V I got a BSOD after about 6 hours running two x Prime95, so the longer the test then the greater the chance of an electron misbehaving. It is generally recommended that you set your permanent voltage a couple of steps above what you have tested to be OK.

The T5600 in my Q35 is rock solid at 1.0V 1.83GHz, so a slightly lower voltage for the slower T5200 is plausible.

John

 

I simply set my voltages to the lowest I can find without the system crashing after running 2 consecutive sets of 32M Super pi. The system won't usually crash after these settings under normal use. Besides, who cares if the system crashes after so long. A occasional BSOD is worth the lower temps

 

and i'm sure u wouldn't care when you suddenly find your 25hr saved game file corrupt and unreadable

 

The only things which I do at length on my computer are typing (which autosaves every 3 minutes) and internet surfing (firefox's tabs are also recoverable in case of a crash)

 

yeah, but keep in mind that everyone else can read this thread, and unless u specify exactly how u use ur laptop, people who don't exactly understand why undervolting can corrupt data might apply undervolting too much too often.

and its not just when u play games either. think about what will happen when u try to install programs or when vista tries to cache data into your ram. same concept yea?

 

That's very true, but in all likelihood, the the under-volted computer won't crash under "normal" circumstances if you tested the CPU to 100% for a hour.

 

Watts are proportion to the voltage squared.

The power saving from running at 0.95V instead of 1V is very small and, in my opinion, the slightly higher voltage is worth it to reduce the risk of a crash. The electronic malfunctions are most likely at high temperatures. This can be simulated by a long test at full load, but remember that summer has not yet arrived and, if you don't have abundant air conditioning, computer operating temperatures will also increase.

John

 

ok thanks guys