vdroop how much is too much

[SCREAMING EAGLE]

on a p5p800 and Intel 640, I have a droop of .059. This is from 1.5875 to 1.528. this is according to asus probe. Is this too much of a vdroop? there is a mod that I can try. but I don't want to bother if its not going to help. I've tried just about every combination to get this processor to 4ghz prime stable and this vdroop is the last thing to try before giving up. :bang head

[wannaoc]

IMO vdroop is the first thing that should be done so I tihnk it would make a big difference. Here (http://www.xtremesystems.org/forums/showthread.php?t=42646) it is. :D

[SCREAMING EAGLE]

Thanks wannaoc, I guess that I have nothing to lose. Looks like I better lay off the coffee :eek: points to solder are small. I still would like to find out at what point a mod is really necessary? :shrug:

[crimedog]

buy a multimeter

[SCREAMING EAGLE]

buy a multimeter

And do what with it, where do I mesure for droop.

[crimedog]

you measure the vcore and how much it droops..
that's the only way you can set your vdroop mod anyway

[SCREAMING EAGLE]

you measure the vcore and how much it droops..
that's the only way you can set your vdroop mod anyway


ok. So what your saying is that I should measure voltage droop where I am going to solder the variable resistor? Or is there some where else that would be better. From what I have read, with this mod your supposed to set the resistor 28k ohms and solder. Obviously by now you know that I am reading from a monitoring program, and I understand that it is probably not the most accurate way determine droop but I dont know where to probe on the motherboard to get the readings that I need. Can you tell me where I should measure from?

[felinusz]

I just looked around, but cannot find a picture of a good Vcore read point for your board :-/. I suggest you start a specific thread on XS (www/xtremesystems.org/forums); someone there almost certainly has pictures of easy-to-access voltage read points for your board (It's a fairly popular board).


ASUS probe, like all monitering software, is notoriously innaccurate. However, voltage droop is usually represented fairly well by the software readouts. Even though the readouts are innaccurate, your innacurate readout will still droop. Remember, that although software readouts are usually innaccurate, they are still relative.

If your droop voltmod works out, the degree of droop will be lower or nonexistant afterwards, even when read through innaccurate software monitering.

It's still a good idea to check out your Vcore with a multimeter, to see how bad the degree of droop really is, and to get a good idea of the impact your mod has afterwards. Your Vcore droop is almost certainly holding your processor overclock back, stable and consistant voltage becomes more and more important as you overclock higher, and overvolt higher.

[SCREAMING EAGLE]

Thank you, felinusz. I'll ask around.