My new 2.6C and IC7 Experiment

[jdogg707]

Well, I sold my 2.53GHZ SL6S2 (3.44GHZ) and replaced it with an Intel Pentium 4 2.6C Processor that I bought from Googlegear. I've had some good luck overclocking so far, seems that my limit is going to be a FSB of 265 and my processor resting at 3.45GHZ with the memory running DCDDR425 (5:4 Divider). My setup is listed below:

Intel Pentium 4 2.6C @ 3.45GHZ (13x265) @ 1.6V (Thermalright SLK-900U and Thermaltake SmartFan II)
Abit IC7 Motherboard
Geil Ultra Platinum PC3500 DDR RAM running in DCDDR425 2 2.7V and 2-3-3-6 Mem. Timings
ATI AIW Radeon 9700 Pro OC'ed to 361/351
Western Digital 120GB Special Edition Hard Drive

I'm going to go run some benchmarks with this setup and then see if I can tighten the Memory timings to 2-2-2-6, will be back with some benchmarks in a little while...Hopefully by Monday or Tuesday I'll have a pair of WD Raptor's to RAID together and give a nice little boost of HD performance! My poor bank account, it laughs at me now...haha.

 

[canadianpsycho]

In my own personal experience, good luck with trying lower latencies on the GEiL, mine crapped out trying to run faster then SPD. Maybe if the IC7 would offer higher Vdimm settings...

 

[oldfart]

Cool. I hoping for the same with my IC7. My Googlegear 2.6C should be here by the end of the week. My Corsair XMS 3200C2 is good for ~ DDR 426 max. If I could get to 265 FSB, I'll be very pleased. I need to run 2.5,3,3,7 @ that speed

BTW, congrats on the 10 MHz overclock improvement from the old CPU!!

 

[eviltommy]

hmmn, maybe i should get a 2.6 from googlegear instead of a 2.4..

 

[Duvie]

Originally posted by: oldfart
Cool. I hoping for the same with my IC7. My Googlegear 2.6C should be here by the end of the week. My Corsair XMS 3200C2 is good for ~ DDR 426 max. If I could get to 265 FSB, I'll be very pleased. I need to run 2.5,3,3,7 @ that speed

BTW, congrats on the 10 MHz overclock improvement from the old CPU!!

I hear ya...that is why I am not jumping on the bandwagon as of yet cause I want at least 3.6ghz and DCDDR before I upgrade again...I like to make those 400-500mhz leaps ,otherwise I don't FEEL IT!!!!

 

[jdogg707]

Well, it may only be 10MHZ in the CPU, but I have gone from a 720MHZ FSB to a 1061.2MHZ FSB and my memory has gone from DCDDR360 to DCDDR425, and the addition of hyper-threading on top of that. Here are the benches:

Sandra:

CPU Arithmetic: 10598, 2974/6634
CPU Multimedia: 15908, 25515
Memory Bandwidth: 5594/5595

PC Mark 2002:

CPU: 8802
Memory: 10408

3D Mark 2001 SE:

Default Settings: 19006

3D Mark 2003:

Default Settings: 5839

All of these benches are a steady increase over my previous CPU even though it was running at almost the same speed. Plus the system feels faster, even when running Prime95 I can feel hyper-threading giving me the ability to multi task and do other things while it is testing. I like the new processor, but feel that I am at a barrier that could only be breached by better memory and better cooling (Water/Phase Changer). When I went into getting the new chip I didn't expect much more speed than what I already had, but wanted the extras that came along with it....

 

[oldfart]

I was only joking about the 10 MHz......The higher FSB, mem, and HT should all add up to give you a nice boost. Can't wait to get mine! I hope it also goes to ~ 3.4 GHz!

 

[jdogg707]

I figured as much, but just on the safe side...haha

 

[jdogg707]

Well, bad news, I woke up this morning to stop error an a memory dump...gotta love the BSOD! Anyway, for some reason I can't get the thing stable at anything but 250 for the time being, I don't know why when I ran Prime95 for 12 hours with no errors on my PC at 265FSB! Any ideas?

 

[Thor86]

Originally posted by: jdogg707
Well, bad news, I woke up this morning to stop error an a memory dump...gotta love the BSOD! Anyway, for some reason I can't get the thing stable at anything but 250 for the time being, I don't know why when I ran Prime95 for 12 hours with no errors on my PC at 265FSB! Any ideas?

Time to relax the memory timings and maybe even try running 3:2 memory ratio to absolutely see where your wall is with the cpu/oc.

BTW, what is your FPO/Batch # on the cpu? Thanks.

 

[jdogg707]

Hmm, seems like a good plan, I'll try it and see what happens...

FPO/Batch# L310B590
Revision: 9
Stepping: D1

Well, I'm off to go play with it some more, will let you know what happens...

 

[OddTSi]

Originally posted by: jdogg707
Well, bad news, I woke up this morning to stop error an a memory dump...gotta love the BSOD! Anyway, for some reason I can't get the thing stable at anything but 250 for the time being, I don't know why when I ran Prime95 for 12 hours with no errors on my PC at 265FSB! Any ideas?

I think this all comes back to the long discussion a while back that Prime95 isn't a good stress tester anymore.

 

[Thor86]

Originally posted by: OddTSi

Originally posted by: jdogg707
Well, bad news, I woke up this morning to stop error an a memory dump...gotta love the BSOD! Anyway, for some reason I can't get the thing stable at anything but 250 for the time being, I don't know why when I ran Prime95 for 12 hours with no errors on my PC at 265FSB! Any ideas?

I think this all comes back to the long discussion a while back that Prime95 isn't a good stress tester anymore.

True to some extent, but if you are torture testing using Prime95, and it crashes/reboots/errors out, then obviously something is NOT stable, and eventually leads to corruption of data. Whether this data is important or not, is completely up to the user.

 

[groebuck]

875 and 865's -

I have been reading that the intel dual channel DDR setups are not too keen on low latency memory -

I have an IS7-G and 2.4C running at 3.06 (12x255) and DDR408 (5:4 divider) - the memory is cas2 ddr 400 but not low latency- Every other motherboard, including the abit IT7-MAX, would set the timings by SPD correctly. The IS7-G sets it by spd to 2.5 3 -3 - 7. I have some Cosair PC3500 and the 865 gives me similar errors when running at spd settnigs. If I drop the timings down to 2.5 3 3 7 then all is fine.

so long story short - try dropping your memory timings to 2.5 3 3 7 and see how it goes - you might want to up the voltage a bit to on the ddr - that combo might get you back up past 250FSB -

19000 in 3dm2k1?? schweeeet !!

p.s. what are your temps like - I get idle 33C full load 49C which seem a bit high considering the heatsink is barely warm to the touch (having run athlons that lived in the 50C I know what a heatsink feels like when the proc is running that high) - it makes me not trust the readings.

 

[wicktron]

Abit mobos are notorious for having not-so-accurate temp readings. Don't worry about it.

 

[jdogg707]

Originally posted by: groebuck
875 and 865's -

I have been reading that the intel dual channel DDR setups are not too keen on low latency memory -

I have an IS7-G and 2.4C running at 3.06 (12x255) and DDR408 (5:4 divider) - the memory is cas2 ddr 400 but not low latency- Every other motherboard, including the abit IT7-MAX, would set the timings by SPD correctly. The IS7-G sets it by spd to 2.5 3 -3 - 7. I have some Cosair PC3500 and the 865 gives me similar errors when running at spd settnigs. If I drop the timings down to 2.5 3 3 7 then all is fine.

so long story short - try dropping your memory timings to 2.5 3 3 7 and see how it goes - you might want to up the voltage a bit to on the ddr - that combo might get you back up past 250FSB -

19000 in 3dm2k1?? schweeeet !!

p.s. what are your temps like - I get idle 33C full load 49C which seem a bit high considering the heatsink is barely warm to the touch (having run athlons that lived in the 50C I know what a heatsink feels like when the proc is running that high) - it makes me not trust the readings.

I tried upping the RAM timings to no avail, damn thing is really starting to aggravate me...I mean I played CC Generals for an hour last night with no problems at 265FSB! My temps are a little on the high side, 38C/53C, but Abit boards do show inflated temp readings...this I have noticed greatly. I will try upping the volatge on the RAM to 2.8 and bumping the CAS settings again, hopefully I'll get something this time. BTW, what's the highest VCore I should use? Thanks...

 

[Jojo1971]

i guess it's time you try this or this

 

[jdogg707]

Thanks Jojo, but before I start doing some extreme modding to my investment I want to give all possible conventional avenues a shot! But at least there's a backup plan!

 

[jdogg707]

Originally posted by: Thor86

Originally posted by: OddTSi

Originally posted by: jdogg707
Well, bad news, I woke up this morning to stop error an a memory dump...gotta love the BSOD! Anyway, for some reason I can't get the thing stable at anything but 250 for the time being, I don't know why when I ran Prime95 for 12 hours with no errors on my PC at 265FSB! Any ideas?

I think this all comes back to the long discussion a while back that Prime95 isn't a good stress tester anymore.

True to some extent, but if you are torture testing using Prime95, and it crashes/reboots/errors out, then obviously something is NOT stable, and eventually leads to corruption of data. Whether this data is important or not, is completely up to the user.

True, I rarely do OC's like this one on anything but a clean slate! To much data to risk damaging!

 

[jdogg707]

Ok, Prime95 is rolling at the moment through 10K tests @ 260MHZ and 1.65V (1.6-1.63 Actual). I think a lot of the difference was the change in the memory, from 2-3-3-6 @ 2.7V to 2.5-3-3-7 @ 2.8V. I am going to investigate this further and after 24 hours of prime I'll crank it up a little more and see what I've got going on here. Will keep everyone posted...

 

[groebuck]

CPU voltage?? hmm - I've read quite a few articles that say you should not take your P4 above 1.7 v

Dimm voltage?? not sure 2.8 is the highest I think on the abit anyway

I thought the geil needed more voltage to hit pc3500 stats anyhooo

 

[jdogg707]

Ya, I'm thinking it was 2.9V...I might just be ditching this stuff for some Kingston HyperX or Corsair XMS if I can trace my problems back to the memory! Would anyone go with the OCZ DDR3700?

 

[jdogg707]

Switched up to 265 just to see if she'd do it and Prime95 is again rolling along quite nicely...very irritating that it was the memory...but that's fixable...a little more tweaking and then perfection!

 

[wicktron]

Originally posted by: jdogg707
Ya, I'm thinking it was 2.9V...I might just be ditching this stuff for some Kingston HyperX or Corsair XMS if I can trace my problems back to the memory! Would anyone go with the OCZ DDR3700?

The OCZ Gold PC3700 EL look extremely impressive. Perfect for the Intel system where high FSB's are needed and thight timings aren't critical.

 

[jdogg707]

Well, I'm sitting very stable it seems at 264FSB with my memory timings at 2.5-3-3-7 and 2.8V. I am going to play with the memory timings tomorrow but will let Prime95 run, one instance on each logical processor for double the pain! Will report back tomorrow!