View Full Version : gettin under the 2 hr mark?

07-27-2003, 07:42 AM
ok i have been wordering if anyone has dipped under the magic 2hr crunching mark, i got all so close at 2h 8 mins earlier but not good enough for me. what are the key componets to get under that? p4 or athlon xp. it is about time for a new system anyway.
list what you think it takes. Overclockin is welcome but keep in mind air cooling. let the setups roll

07-27-2003, 11:50 AM
My XP2600+ @ 2.26GHz averages 2hr 7mins but about 1 in 6 w/u's just dips under the 2hr mark while a few will blow out to 2hr 20mins under very heavy use. :beer:

XP2600+ set at 12.5 x 180MHz
Volcano 7+
2 x 256MB Corsair XMS3500 with timings set as aggressive as the BIOS will allow.
40GB WD JB400
128MB Leadtek GF4Ti4200 My VIVO
LiteOn 48x16x48x CDRW and LiteOn 16x DVD
Logitech Z-560 speakers
UNEEC server case w/ window and 5 x blue LED fans

07-27-2003, 12:34 PM
this is what HOS was doing almost every unit before I added all my junk to the drive...now it gets about 2.1/WU, I almost want to delete everything and just let it run alone!

1:57 time (http://forums.tweaktown.com/showthread.php?s=&threadid=9019&perpage=40&pagenumber=9)

07-27-2003, 01:55 PM
is it safe for me to build a 2.8c p4 and oc it a little and expect a time of under 2hr? is this a safe shart to go on?

07-27-2003, 01:56 PM
sorry forgot the graph

07-27-2003, 02:10 PM
There's only one way to find out ain't there? :devil win

07-27-2003, 02:41 PM
well sorta .. i am sure someone has used a p4 2.8 to crunch. if i were to buy that setup and it didn't work, that would be a costly mistake. i am trying to avoid that at all cost

07-27-2003, 10:14 PM
I have a 2.53 P4 in an Epox 4g4a+ MoBo, o/c'd to 2.945 Ghz, Maxtor 6Y060Lo HD, w/ 1-512 stick of Corsair XMS mem, & Win 2K pro doing pretty much nothing else but crunching [email protected] units. It completes 8 WU's per day, which is a average of 3 Hrs/wu. I think we've all decided that comperable expense in an AMD-based unit will yield much better results. ;)

07-27-2003, 10:42 PM
could the factor of that be becuase you are not running in dual channel?

07-28-2003, 06:34 AM
Nope as the factor is that until the 800QDR CPU's came out the P4 just wasn't up there as shown in ya graph. :beer:

07-28-2003, 09:40 AM
My p4 2.6C @3.33 pushes out units at a rate of 2 every 3 hours.

07-28-2003, 10:03 AM
Dual channel mem will have minimal influence, since [email protected] is mostly cpu intensive and uses very little memory. SETI does write to the HD frequently, so a speedy one may shorten the times, somewhat.

PS. The Epox MoBo I'm using is pre Dual Channel, so that is not an option for me.

It does look like the C-type P4 cpu's, with their HT feature, is quite beneficial. Wouldn't mind having a system or two based on a C-type P4, but that would be down the road for me.

07-28-2003, 09:26 PM
so far here is waht i am looking at

p4 2.8c
abit is7-g
1 more stick of corsair pc3200 xms
and then transfer the videocard and harddrive that i already have over

vinnie ven would you mind sharing more on your system?

07-29-2003, 01:21 AM

P4 2.6c @3.33 (255FSB)
2 256 OCZ Gold pc3500
Pioneer dvr a05
Liteon 48x burner
Sony 16x DVD
3x WD 80GB SE
msi ti4800se
Enermax 350w EG365P-VE

07-29-2003, 02:06 AM
Twisted, It looks like you're building a killer machine! I'll bet it'll crunch [email protected] WU's at a supurb rate. Can't wait to see how it does. :)

07-29-2003, 02:43 AM
yeah i am gonna go ahead and go for the pentium 4 as i was telling cheez earlier. for the moment i am with the folding team since it is new, it could use a little boost.i think i will come back when they switch the satelites. thanks for all that help me make a decision.

07-29-2003, 10:46 PM
W00T.....I dipped under the two hour mark for some reason!!!

Rig is in my sig

07-30-2003, 12:32 AM
You'll find the answer at Why is there so much variability in workunit completion time with version 3.x? (http://setiathome.ssl.berkeley.edu/faq.html#q100). ;)

07-30-2003, 12:35 AM
Actually most of my wu's are around 3.33 hours, and i think i have 4or5 really quick ones like that.