Has anybody of you already oced a Xeon?
In the Bios of the SKT there are a lot possibilities...

heinz

don't know about skt bios, but you should be able to strap the fsb from 333fsb to 400MHz, and set your memory divider accordingly if needed. there are alot of good people at xtremesystems:
http://www.xtremesystems.org/forums/forumdisplay.php?f=59

my motherboard is a supermicro x7da3 which has no oc support, so i had to strap to 333fsb by insulating a pin which gets me to 2.3ghz and the rest is setfsb program, no voltage adjustment.

---

17:40 hour
temp = 28 C, humidity = 70%, sunny with big cumulus clouds
FB-DIMM = 63 C
CPU's min = 56, max = 65 C, both case-fans are on
-----------------------------------------------------------------
Here is the SKT Performance menue:
Performance_m01
Performance_m02
Performance_m03
Performance_m04
Performance_m05
-----------------------------------------------------------------
hmmm...any suggestions from the OC-freaks ?

heinz

17:40 hour
temp = 28 C, humidity = 70%, sunny with big cumulus clouds
FB-DIMM = 63 C
CPU's min = 56, max = 65 C, both case-fans are on
-----------------------------------------------------------------
Here is the SKT Performance menue:
Performance_m01
Performance_m02
Performance_m03
Performance_m04
Performance_m05
-----------------------------------------------------------------
hmmm...any suggestions from the OC-freaks ?

heinz

A light OC to 2,4Ghz
Multiplier x6
Bus Speed 400
Rated FSB 1598
Core Speed 2398 MHz
FB-DIMM = 66 C
CPU's min = 53, max = 67 C, both case fans on

thanks to RottenMut :-)

heinz

Normally if you OC the CPU with higher FSB, the RAM overclock also.

You could look with CPU-Z how the RAM is running..

Enhanced Power Slope will give little higher Vcore to the CPU.
At my Intel D975XBX2 it's ~ 0.025 (real) voltage, but I don't use it..

Because of the Benchmarks..
It depend also which Version of BOINC you use.. (maybe OS also?)

---

22:10 hour
temp = 25 C, humidity = 80 %
FB-DIMM = 66
CPU's min = 54, max = 64 C, bothcase fans are on
---------------------
if the casefans off
FB-DIMM = 69 C, this are 3 degrees more as usual... but no problem
CPU min = 63, max =73
-------------------------------------------------
#33 _heinz 7,656.80 289,791 so far
The OC to 2,4GHz is active now, first results are up
-----------------------------------------------------
CPU time 4332.047
stderr out <core_client_version>5.10.45</core_client_version>
<![CDATA[
<stderr_txt>
Windows optimized S@H Enhanced application by Alex Kan
Version info: SSSE3x (Intel, Core 2-optimized v8-nographics) V5.13 by Alex Kan
SSSE3x Win64 Build 42 , Ported by : Jason G, Raistmer, JDWhale

CPUID: Intel(R) Xeon(R) CPU E5405 @ 2.00GHz
Speed: 4 x 2398 MHz
Cache: L1=64K L2=6144K
Features: MMX SSE SSE2 SSE3 SSSE3

Work Unit Info:
...............
Credit multiplier is : 2.85
WU true angle range is : 0.444632

Flopcounter: 15360306306237.727000

Spike count: 0
Pulse count: 4
Triplet count: 2
Gaussian count: 0
called boinc_finish
--------------------------------
And this shows the Xeon E504 is overclockable ! very nice

heinz :-)

Normally if you OC the CPU with higher FSB, the RAM overclock also.

You could look with CPU-Z how the RAM is running..

Enhanced Power Slope will give little higher Vcore to the CPU.
At my Intel D975XBX2 it's ~ 0.025 (real) voltage, but I don't use it..

Because of the Benchmarks..
It depend also which Version of BOINC you use.. (maybe OS also?)

original DRAM-Frequency
RAM is running now with 400MHz, FSB:DRAM 1:1, 5,5,5,15,19
a light speedup :-)

heinz

7:00 hour 29th of June
temp = 22 C, humidity = 97%, light cloudy, looks like a nice day
FB-DIMM = 67 C
CPU's min = 63, max = 73 C, both case fans are off,
good temps for light OC to 2,4GHz
----------------------------------
#31 _heinz 7,639.58 293,290

so we hope to get upwards still a little bit, let's see.
heinz :-)

13:00 hour
temp = 29,7 C, humidity = 72%, big cumulus clouds everywhere
FB-DIMM = 67 C
CPU's min = 55, max = 68 C, both case fans are on
---------------------------------------------------------
hope we don't get thunderstorms again this afternoon
tried some oc:
Bus Speed 433 x 6 no other changes, no boot
Bus Speed 400 x 7 no other changes, no boot
Bus Speed 400 x 6 no other changes, runs
next time will enable "Enhanced Power Slope" and look if it helps
any other suggestions ?

heinz

20:30
temp = 28,5 C, humidity = 70%, blue sky
FB-DIMM = 67
CPU's min = 56, max = 70 C, both case fans are on
----------------------------------------------------
#32 _heinz 7,692.20 297,286 hmmm... the others are quicker...
so we must wait...

heinz

9:00 hour, 30th of June
temp = 26,8 C, humidity = 71%, small clouds, sunny
FB-DIMM = 67 C
CPU's min = 53, max = 67, both case fans are on
-------------------------------------------------
#32 _heinz 7,671.00 300,843 ...uhh light backwards ?
maybe this are a lot of new pendings ?
msattler's Q9450 is already short behind me
there are already several Q9450 in the first 25
#17 Fred W 8,373.82 1,090,335 uuuhhh, really great

Looks like I must squeeze a little bit more out of the SKT to go into the first 25

heinz

I don't know how big are your experiences with OC..

If you OC too much the RAM and the CPU would have more headroom, you must reduce the FSB:RAM ratio.. that the RAM is running again normal or little OC..

First you must reduce the RAM to the min. possible.
And rise then the FSB for the CPU.
((But here you could see the max. for the CPU or FSB (MCH) also)
To see the highest possible FSB, you reduce the multiplier of the CPU to the smallest possible and increase the FSB.)
And if it's stable you can rise the RAM.

---

17:00 hour
temp = 28,8 C, humidity = 65%
FB-DIMM = 68 C
CPU's min = 56, max = 69 C
both case fans are on(smallest possible rpm, turned potentiometer to min)
If the machine runs with the two big case-fans on, then the fans of the CPU-cooler and the backside fan are going off, still slow turning from the wind.
No further OC is done till now.
#28 _heinz 7,797.43 305,934 hmmm...sure not long..Mark is behind me

Thanks Sutaru for your advice :-)
Will try it later

heinz

I found maybe something interesting for you.. :-)

HOWTO: Overclock C2Q (Quads) and C2D (Duals)

---

22:00 hour
#27 _heinz 7,845.07 308,010 ...maybe 8000 are possible

heinz

Hmmm, perhaps you need to use an IDE cd/dvd rom drive temporarily to get into windows setup, and press something to install Sata drivers to access the new hardware. Once the OS is installed the Sata should be fine. I had to use an old CD drive I keep around to install XP on my new Wolfdale, because windows setup wouldn't initially recognise the Sata until supplying a floppy with drivers at setup boot. I really hope a floppy is no longer required to accomplish this.

I had this with a raid controller I recently bought to turn an old machine into a file server. Boot up required you to install raid drivers from floppy (it was an old P4 but did actually have a floppy drive, none of my other machines do). I had to run around to try and get the driver off CD onto a floppy.

Something I'm starting to do:

Virtually every BIOS supports a USB floppy natively, and they also support USB CD/DVD drives.

So, why would you put a floppy or a DVD in the machine permanently? On the rare occasions that you really need the drive, just go plug it in....

Might have to try different USB ports, though. I have found, when needing a USB connected floppy drive for SATA drivers during XP Home install that some machines will recognise the floppy drive only if it connected to a particular USB connector.

F.

... and your point is?

It's a choice between having to scavenge a 3.5" floppy out of another system because the one you're relying on has been just sitting for too many years, or figuring out which USB port the BIOS likes.

One of those generally requires a screwdriver.

I got a USB floppy in the drawer just in case I find a floppy sitting around somewhere. I can tehn plug into any system that I like. I haven't put floppy drives in any new systems the last two years. I sometimes opt for an internal memory card reader instead. Those are much more useful than a floppy these days.

---

7:45hour 1st of July
temp = 24,9, humidity = 88%, blue sky no clouds
FB-DIMM = 71
CPU's
core 0 = 63
core 1 = 48
core 2 = 60
core 3 = 60
core 4 = 58
core 5 = 54
core 6 = 58
core 7 = 58
both case Fans are on
--------------------------
#25 _heinz 7,936.67 311,621

Number 25 today....

heinz

11:45 hour
catched the 8000 RAC today
8,021.96 314,489 GenuineIntel
Intel(R) Xeon(R) CPU E5405 @ 2.00GHz [Intel64 Family 6 Model 23 Stepping 6]
--------------------------------------

heinz :-)

---

D5400XS V8-Xeon

Nice going, Heinz!

-Dave

---

9:00 hour, 2nd of July
temp = 27,7 C, humidity = 78%, sunny, forcast says 35 Celsius today
FB-DIMM = 68 C
CPU's min = 54, max = 68 C, both case fans are on
----------------------------------
as I'm walking through the wu's found interesting values
AMD Opteron(tm) Processor 885
Computer ID 2842066
Report deadline 8 Jul 2008 11:38:05 UTC
CPU time 4871.999343
stderr out <core_client_version>5.4.9</core_client_version>
<stderr_txt>
setiathome_enhanced 5.27

libboinc: setiathome_enhanced 5.27

Work Unit Info:
...............
WU true angle range is : 4.309276
Optimal function choices:
-----------------------------------------------------
name
-----------------------------------------------------
v_BaseLineSmooth (no other)
v_vGetPowerSpectrum 0.00068 0.00000
sse3_ChirpData_ak 0.02138 0.00000
v_vTranspose4np 0.01720 0.00000
BH SSE folding 0.00146 0.00000

Flopcounter: 5066657633433.159180

Spike count: 3
Pulse count: 0
Triplet count: 2
Gaussian count: 0

</stderr_txt>
-----------------------------------------------------------------
Computer ID 4387433
Report deadline 8 Jul 2008 11:38:10 UTC
CPU time 924.9688
stderr out <core_client_version>5.10.45</core_client_version>
<![CDATA[
<stderr_txt>
Windows optimized S@H Enhanced application by Alex Kan
Version info: SSSE3x (Intel, Core 2-optimized v8-nographics) V5.13 by Alex Kan
SSSE3x Win64 Build 42 , Ported by : Jason G, Raistmer, JDWhale

CPUID: Intel(R) Xeon(R) CPU E5405 @ 2.00GHz
Speed: 4 x 2398 MHz
Cache: L1=64K L2=6144K
Features: MMX SSE SSE2 SSE3 SSSE3

Work Unit Info:
...............
Credit multiplier is : 2.85
WU true angle range is : 4.309276

Flopcounter: 5066024479533.156200

Spike count: 3
Pulse count: 0
Triplet count: 2
Gaussian count: 0
called boinc_finish

</stderr_txt>
]]>
---------------------------------------------------
the standard app runs 4 times as long, on the powerful Opteron 885.
It would be very interesting to see how this Opteron run with the optimized app.

heinz

16:00
temp = 29,7 C, humidity = 69%
FB-DIMM = 67
CPU's min = 60 , max = 70 C, both case fans are on
----------------------------------------------------------
#25 _heinz 7,971.16 323,455 ...uuuhhh it is going backwards again :-(

my konto shows --> 8,021.95 324,056 same avg as yesterday 11:45 hour..hmmm

after every tuesdy-update the avg slows down, have you seen it already

heinz