p4 1.8 benches at 2.538ghz to 2.609ghz

[Duvie]

I am stable prime95 tested (12 hours) at 140fsb or 2520mhz...temps 38c/51c

scores:
sandra cpu: 4837/3071
sandra multimedia: 99041/12214
sandra memory: 2597/2596

pcmark2002
cpu:6147
mem:5245
hdd:921

p41.8@2.538 (141fsb) failed at 1.775v in about 15minutes...I will try 1.8v later. I saw a temp of 52c during prime95.

scores:
sandra cpu: 4854/3099
sandra memory: 2614/2611

pcmark2002
cpu:6179
mem:5221
hdd:920

p41.8@2.556 (142fsb) not prime tested

scores:
sandra cpu: 4899/3115
sandra memory: 2629/2627

pcmark2002
cpu:6237
mem:5248
hdd:920

p41.8@2.574 (143fsb) not prime tested

scores:
sandra cpu: 4916/3135
sandra memory: 2652/2647

pcmark2002
cpu:6261
mem:5264
hdd:919

p41.8@2.609 (145fsb) booted safely into windows at 1.8v

scores:
sandra cpu: 4988/3186
sandra memory: 2689/2685

pcmark2002
would get an error during test


Things I noticed:

1)pcmark2002 never took my temps at any speed tested past 45c for load...

2)memory adjustments and improvements in sandra scores didn't reflect in the pcmark scores

3)Temps in prime at 2.538 never got above 52c....

I think maybe a better power supply could help me here...The 12v rail droped to 11.58 a couple of times sharply and the vcore fluctuated a bit more....All score in sandra were growing still proportionately to mhz difference so it seems like it may be just a voltage issue on prime above. Without better supply of juice I doubt I can go past 2.538v with 1.8v vcore...

 

[JoeRicard]

Like you said in your final conclusion.

A better PSU will probally rectify your problem.

You're using a 300watt psu now?

 

[hnic2k]

i'm using a 300watt noname psu... thinking of getting an antec 350w, maybe i can get my 1.6a to be stable at 3.0Ghz since i can get into windows at 2.94Ghz but would crash in IE

 

[Duvie]

I've got a sparkle 350watt...I am going to likley get a antec 350 or 400 watt PS....Or maybe an 350 enermax..