fordf250 Posted February 1, 2006 Posted February 1, 2006 Well after bashing the 875p-t and dfi that they didnt clock as well as the new asus mbs a few weeks ago I, I decided to try my 875p-t with the 640 again before getting a new 975 chipset MB.It looks kike temps realy are the only problem for my MB. My basement is now around 16-18*C in the morning till it warms up.With the dual heatpipe xp-120, an NB-C with fan the 5/4 divider all bios default but the cpu and mem, turbo on, 1.72Vcore and 2.8Vdimm and 1.5Vagp I booted into windows and ran the FEAR system test 3 times at 280fsb giving 4.49G and better FEAR scores than my dothan at 2.9G.I could not play the game as my dvd drive is on its way out and the fear install was not good, its done this with the dothan to.After the third run it crashed to desktop but the xp install was still good and stable with no reboot.Idle temps with 16C ampiant were 30C and went to 40C with ambiant at 18-19C.I dont have an internet conection to show verification but will try and get some screenshots and transfer them. With my IR temp probe the base of the HSF was 22C under load, the mem was at 22C no fan and the mb around the mb and the nb hsf was 22-23C.I got one boot into memtest at 285fsb 4.56G when everything was at 18C with 1.775Vcore till the mb warmed up.I will leave the window open today and see what it does at 15C. Quote Share this post Link to post Share on other sites More sharing options...
Lando95 Posted February 1, 2006 Posted February 1, 2006 You don't want to keep that cpu for very long, do you? You vcore is crazy high for a Prescott on air. You temps are good, but I would seriously consider staying under 1.6volts. Heck, the max recommended vcore on air 1.525, so you are playing with fire, IMO. Quote Share this post Link to post Share on other sites More sharing options...
fordf250 Posted February 2, 2006 Posted February 2, 2006 Thanks for the concern about the vcore but this cpu ran 24/7 at 4.32G and 1.65vcore for 5-6 months before I got my dothan.I will put it in a 975 chipset mb soon and will not need as much Vcore to get the max mhz from this cpu. It took 1,8Vcore and all three 100cfm 120mms I had to get this shot,I think Im def , Vagp was 1.5 and Vdimm was 2.6 with my 2x1024 Be-5 and the 5/4 divider.Lots of droop as its at 1.8vcore in the bios but only 1.6ish in cpu-z.There were no random crashes or window freezes like I used to get over 270fsb.I will try my 560j and the 14x to find max fsb tomorrow. http://community.webshots.com/photo/329678...067863468MCdSAw http://community.webshots.com/photo/329678...067863468WIunNA Room temp was 18*C and the mb was 20*C with my ir temp sensor.The ram was between 19-20C. Quote Share this post Link to post Share on other sites More sharing options...
Guest YuKoN Posted February 2, 2006 Posted February 2, 2006 all i can say is daaaaaaaaamn! i have troubles over 235 but that's the nature of the 925 chipset. great job! awesome clock! hope you don't run that vcore all the time though! of course recommended vcore on my 660 is like 1.33 to 1.38! i run 1.425(cpuz says 1.37). i know it can handle more but it wont even post over 1.475. that would be like 1.42 cpuz. anyway point is every cpu is different. i think you've got yourself a keeper! some guys buy like 5 cpu's at a time and keep the one that'll handle the most volts for oc'ing. then sell the other 4 on ebay! must be nice.......... i'd hang on to that 640- it's definitely a gem! Quote Share this post Link to post Share on other sites More sharing options...
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