Intel Dual core 805

[perdomot]

This looks pretty promising depending on how much it OCs so I was wondering if anyone is using this cpu and what have you been able to run it up to? Voltages and other details please.

 

[IcBlUsCrn]

I got one with a ecs rc410l motherboard stock voltage i think is around 1.3 volts supposed to be 1.4 i think. just by changing the fsb i have it at 3.2ghz on stock hsf with some AS5 ran two cpu burn ins (100% load)for 5.5 hours. temp was at 55°c with my case fans turned all the way down. now my issue is i cant find or know if i can lock the pci bus clock.

 

[boeki]

i've got mine running at 3.466ghz on 1.36v on an asus p5ld2 mobo w/ a tt big typhoon slapped on it. temps are around 44c idle and 58c on load.

 

[bunnyfubbles]

20x multiplier, it would be killer if you could use lower multis on intel chips like you can AMD, I could see these things wanting a little more bandwidth...

The price makes it tempting to snag if only for playing around with, although I think I'd spring the extra cash for an 820 just so I could have the much lower multiplier. But then I'm reminded how much my 165 is going to trash it, and how I'd just rather save up for Conroe if it lives up to the hype.

Damn the temptation, it'd be really tempting if there was a 905...

 

[Absolute0]

Not bad then looks like 3.5 Ghz with good cooling

Also thought it was interesting, 3800+ X2 beat the Opteron 165 the great majority of the time, putting an end to the age old argument "what is better, 1mb of cache or +200 Mhz?"

 

[IcBlUsCrn]

on the asus p5ld2 can you adjust cpu voltage? ram voltage?

I want to get a new mobo for around $125 that i can overclock with, But i got mine with the cpu/mobo was a combo for $129

I am running pqi turbo ram 1 stick 1 gig
Forgot to mention idles @36°c

 

[khurios2000]

mine overclock 3700mhz@stock
Big typhoon P5LD2
Idle 35'c Folding@Home Load Dual Instances 53'c
SuperPI 1mb: 35sec
SuperPI 32MB: 33Min and some change

 

[boeki]

@IcBlUsCrn

there are lot's of oc options on the p5ld2 including cpu and ram voltage adjustments.

 

[stevty2889]

I've got mine on a gigabyte 8N-SLI, running at 3.7ghz, upped the vcore to like 1.4v I think. I've got it water cooled, but I think 3.6-3.7ghz is doable with good air cooling.

 

[Viditor]

Originally posted by: stevty2889
I've got mine on a gigabyte 8N-SLI, running at 3.7ghz, upped the vcore to like 1.4v I think. I've got it water cooled, but I think 3.6-3.7ghz is doable with good air cooling.

Could you post the temps on the water-cooled stevty?
Cheers!

Edit:BTW, does anyone have a temp probe to check the temps independently?

 

[stevty2889]

57c max full load, typicaly closer to 52c running dual instances of Folding@home 24/7.

 

[greenwar]

I got mine to do 3.80 at 1.43 volts with a xp-90 with tornado running at approx half speed. Idle temps are around 36-38 and full load around 53C. My mobo undervolts big time. Whatever you do, do not buy a gigabyte 945p mobo to overclock ur 805.

 

[perdomot]

How does the 805 compare to an A64 running at 2.2Ghz when it comes to vid encoding if the 805 is OC'd to at least 3.2Ghz?

 

[stevty2889]

Originally posted by: perdomot
How does the 805 compare to an A64 running at 2.2Ghz when it comes to vid encoding if the 805 is OC'd to at least 3.2Ghz?

against a single core A64 or an X2? @3.2ghz as long as the video encoding ap is SMP aware, it will do better than a single core A64@ 2.2ghz, not so well against an X2@2.2ghz

 

[perdomot]

Its a single core A64. The apps I use are DVD Shrink, TMPEG encoder and Nero.

 

[perdomot]

BTW, forgot to ask how the 805 system feels in day to day ops.

 

[hans007]

Originally posted by: perdomot
Its a single core A64. The apps I use are DVD Shrink, TMPEG encoder and Nero.

dvd shrink in particular is multithreaded though with a dual core its alot smoother on being able to do other stuff on your system while it is running.

tmpeg im fairly certain is multithreaded as something like an encode is pretty easy to thread. and well, it is A LOT faster on the pentium D over a single core athlons.


p4s in general are pretty fast at streaming tasks like encoding/decoding as they were designed for that (netburst pipeline doesnt really stall on encode/decode since it is not branchy) so a p4 will probably go pretty close to a equivalently rated AMD core.

so a dual core 830 would probably be about the same as a 4200 X2.

 

[stevty2889]

Originally posted by: perdomot
Its a single core A64. The apps I use are DVD Shrink, TMPEG encoder and Nero.

DVD Shrink and TMPEG will definatly take advantage of the dual core, my version of Nero at least is not SMP aware, so won't get a big differance there but overall you would get a good improvement. Works plenty fine for day to day tasks as well of course, but even a Celeron can handle most day to day tasks.

 

[Zim]

Anandtech have published this artcle on the 805 and mention that they are preparing a part 2 focusing on overclocking it.

 

[perdomot]

Yeah I'm waiting for the OC article myself but I wanted to hear what real world users were getting. Seems very promising

 

[zephyrprime]

I recently got a 7900gt from Dell and when that ships, I'm going to try a 805 + p5ld2. I only have AGP right now so I've got to go with something that has PCI-e for my 7900GT. I've read about P4 overclocking and apparently it's possible to drop the multiplier on them to 14x if the motherboard supports it. This little trick is due to some sort of quirk with speedstep. I figure with a 14x multiplier, I could push the cpu up to 3.7GHz with regular ddr2-533 memory and a 1066FSB which is a supported speed on the p5ld2. By running the ram at stock, I can get an extreme overclock with spending a lot on RAM.

I'll let yoy guys know how it goes down.

 

[manikin]

Originally posted by: greenwarMy mobo undervolts big time. Whatever you do, do not buy a gigabyte 945p mobo to overclock ur 805.

I'm about to do just that. Jeesh, now I'm second guessing again.

I've gone over and over the 945 economy boards (under $90) as I'm on a very tight budget. (I'd like to wait for Conroe, but need to go with the Pentium 805 while the funds are available).

So after looking more carefully than most would ever do for such a small investment, I decided on the GIGABYTE 8I945PL-G or GIGABYTE 8N-SLI (don't plan on running SLI, but other features seem make this board attractive for the $3 difference in price at MWave).

I mostly work with bitmap graphics. The products often find their way into commercial 3D as textures however. I'll be doing more direct development for 3D shortly and test renders will by a part of that process.

I seldom do games, but would like the most bang for the box.

PS. I've been in and out of boxes for years, dismantling and restoring Mac and PC alike. I've never assembled a system from scratch. So, I'm opting for MWave's assemble/test/bundle option on the CPU, board and memory to bypass potential noobe problems.

Motherboard, memory and the new video graphics card technologies are the areas where I'm operating in the dark. Any feedback or recommendations would be appreciated. I'm basically following the 805 review which suggested a cheap 945 board. I do note Zim's post about a part 2 overclocking article, however.

Thanks in advance from a 5 year lurker.

 

[stevty2889]

Originally posted by: zephyrprime
I recently got a 7900gt from Dell and when that ships, I'm going to try a 805 + p5ld2. I only have AGP right now so I've got to go with something that has PCI-e for my 7900GT. I've read about P4 overclocking and apparently it's possible to drop the multiplier on them to 14x if the motherboard supports it. This little trick is due to some sort of quirk with speedstep. I figure with a 14x multiplier, I could push the cpu up to 3.7GHz with regular ddr2-533 memory and a 1066FSB which is a supported speed on the p5ld2. By running the ram at stock, I can get an extreme overclock with spending a lot on RAM.

I'll let yoy guys know how it goes down.

Only P4's @3.2ghz or higher allow you to drop the multiplier to 14, the 805 does not.

 

[zephyrprime]

Originally posted by: stevty2889

Originally posted by: zephyrprime
I recently got a 7900gt from Dell and when that ships, I'm going to try a 805 + p5ld2. I only have AGP right now so I've got to go with something that has PCI-e for my 7900GT. I've read about P4 overclocking and apparently it's possible to drop the multiplier on them to 14x if the motherboard supports it. This little trick is due to some sort of quirk with speedstep. I figure with a 14x multiplier, I could push the cpu up to 3.7GHz with regular ddr2-533 memory and a 1066FSB which is a supported speed on the p5ld2. By running the ram at stock, I can get an extreme overclock with spending a lot on RAM.

I'll let yoy guys know how it goes down.

Only P4's @3.2ghz or higher allow you to drop the multiplier to 14, the 805 does not.

Isn't that just because some P4's utilized a 200mhz bus clocks and hence only processors with a clock speed of 3.2 or higher had buses that were more than 14x to begin with? The 805 with only a 133mhz bus clock runs at a multiplier of 20 even though it only has a stock speed of 2.66ghz. I could be wrong but I don't see any reason why it won't work.

 

[stevty2889]

It was a feature added to the P4's at 3.2ghz and higher, and only 200mhz FSB P4's have it. The 805 is locked at 20x, it does not have the 14x multi. The 3ghz 200mhz FSB P4 has a 15x multi, but doesnt' have the 14x unlocked either(at least none I have seen myself).