Intel Dual Core from £79 +VAT

Byron · 26 Apr 2006 at 12:17

i'm switching from 920d to 805, pretty soon, will post results back and comparison

FirebarUK · 26 Apr 2006 at 12:17

How does your 920 clock?

Byron · 26 Apr 2006 at 12:25

4.15ghz @1.45 vcore on water @ 888mhz ddr2 mem speed.

FirebarUK · 26 Apr 2006 at 12:52

Nice

Tooks · 26 Apr 2006 at 13:51

Marcus667,

I'm running a PCIE 7800GT/805 combo on the Asus P5VD1-x mobo, and results from the ORB show that the 4x PCIE slot isn't really hindering its performance at all.

I've been looking at the Asus P5ND2 SLi nForce4 too though, as I fancy sticking another 7800gt in there at some point in the near future!

I'm not that impressed with the overclocking prowess of the P5VDI-X though...

Raikiri · 26 Apr 2006 at 13:55

I changed my Asus P5VD1-x for the Asus P5ND2 SLi Deluxe, worth it imo

Just testing at 3.75ghz

Super pi in 36.344s

965 CPU score in 3dmark 03

Aquamark 3 - Total - 69,311
CPU - 10,566
Graphics - 10,317

And a few pics:

Rear fan is @ 5v, front fan is a low rpm model (1200) and theres no fan in the side panel until I buy a quieter one to use. Stock cooling on both the graphics and CPU which I will be replacing with an arctic freezer 7 pro and an ATI silencer to keep it nice and quiet/cool.

Tooks · 26 Apr 2006 at 15:26

Nice looking setup Raikiri!

I've got the Arctic Freezer 7 Pro on mine, and it is indeed as good as people say it is.

What RAM/Timings are you running if you don't mind?

The instability of the P5VD1-X is getting to me a bit! I've never reinstalled windows so many times! (I'm almost on first name terms with the validation id call centre staff!

)

Raikiri · 26 Apr 2006 at 15:30

RAM is only some cheap stuff, running 1:1 with 5,5,5,14 timings and 1T @ 1.85v

I doubt that applies to you though as you are running DDR not DDR2, with my P5VD1-X I ran 2.5,3,3,7 1T timings (also 1:1) but could only get it stable up to 3.2-3.3 before it needed some voltage.

Tooks · 26 Apr 2006 at 15:35

Thanks for that.

I was thinking that with me having to buy some DDR2 with that board, I thought I'd better check it wasn't some super exotic stuff that was getting you those clocks!

I can only get mine to about 3.0ghz stably, but of course it could be my processor is just not a good OC'er, and not just the board/RAM holding me back.

Raikiri · 26 Apr 2006 at 15:41

With this chip you only need the most basic DDR2 really, as it is unlikely you will go over a 200mhz FSB (on air anyway). I only have 2x256mb due to it being built on a budget but it only costs £14

marcus_667 · 26 Apr 2006 at 16:24

i think i might aswell wait till i start work again and spend some serious coin i think

lay-z-boy · 26 Apr 2006 at 20:34

this 920 is a bugger to cool, it kills the stock cooler at dual load, and also kills my 9500 :eek:

60c+ dual load in a case with every fan at max at 4.2ghz with stock vcore on my p5wd2e.
my watercooling is on my x2 and x1900 as well...

memory is beeing a biatch, its unstable even when clocked slower than default. :mad:

can anyone guess what would be faster, an x2 at 2.7ghz or pd at 4.6-8?

ajgoodfellow · 26 Apr 2006 at 20:38

Probably the P-D as it will be very fast at 4.8GHz!

An X2 at 2.7GHz with 1MB of L2 cache per core will be a little faster than the FX60. This slaughters all of the current P-Ds but they only top out at 3.46GHz stock

FirebarUK · 27 Apr 2006 at 09:09

Currently have my 920 at 3.8Ghz on stock volts

No idea about temps as the probes are reporting 30C load :rolleyes:

Perhaps a bad thing, might have to play a couple hours on a game and then touch the sink itself.

"andy" · 27 Apr 2006 at 16:41

anyone here watercooling one of these ?

if so what setup and what temps/overclock are you getting ?

Byron · 27 Apr 2006 at 18:28

920D at 4.15Ghz, 1.45vcore and 27oC ambient temp, 120.2 rad with 4 silent fans on (really quiet), 2xL30 pumps, Swiftech Storm cpu block, maze4 vga block on a high overclocked 6800GT.

cpu load ~45oC
idle ~34oC

others with same cpu got much higher clocks, watercooled, guessing my mobo limits me as this baby boots and runs memtest86 at 4.5Ghz and 1.5vcore.

Byron · 29 Apr 2006 at 19:29

finally got a 805D onto my P5WD2/P,
tbh not really impressed...
on decent water it runs stable at 3.9Ghz (double prime) and 1.4vcore, load temps are much higher than the 920D ~52oC with room temp 27oC.
thing is, increasing the vcore more than 1.42v and it will reboot when running prime for some strange reason :confused:

cpu and multimedia scores are same as the 920D at same clock speeds, the 805D lacks of bandwidth very much, at 200fsb it scores about 5K sisoft sandra, while that is how much a 920D scores at default speeds.

will run some other benches when i find its max stable speed.

also, i have noticed that this cpu refuse to run more than 800Mhz ddr2 speeds and i had to slack some mem timings off to get it stable :confused:

so not only mem/mobo makes a good combo but cpu must be taken into account as my previous 920D and 640 could run 960Mhz ddr2 speeds stable on same mobo with same mem sticks!

WJA96 · 29 Apr 2006 at 21:55

Byron said:
finally got a 805D onto my P5WD2/P,
tbh not really impressed...

Why not?

Byron said:
on decent water it runs stable at 3.9Ghz (double prime) and 1.4vcore, load temps are much higher than the 920D ~52oC with room temp 27oC.
thing is, increasing the vcore more than 1.42v and it will reboot when running prime for some strange reason

The 805 is two 90nm Prescotts joined together, so of course it's going to run hot. The 920 is a 65nm Presler core. They still run really hot as normal. If you want cool, buy a 631 Cedar Mill.

Byron said:
cpu and multimedia scores are same as the 920D at same clock speeds, the 805D lacks of bandwidth very much, at 200fsb it scores about 5K sisoft sandra, while that is how much a 920D scores at default speeds.

So the £93 overclocked chip gives the same performance as a £160 chip at stock? Why are you disappointed?

Byron said:
also, i have noticed that this cpu refuse to run more than 800Mhz ddr2 speeds and i had to slack some mem timings off to get it stable
so not only mem/mobo makes a good combo but cpu must be taken into account as my previous 920D and 640 could run 960Mhz ddr2 speeds stable on same mobo with same mem sticks!

The 920D and 640 were 800 FSB chips. The 805's are 8xx series chips that failed the 800MHz FSB testing, so of course they won't run 800+ unless you're very lucky.

What did you think you were getting for £93?

Byron · 29 Apr 2006 at 22:33

actually i was just expressing my point of view, as i had a 920D before,
just comparing them to let you all know what is going on... my post was about how this chip performs in comparison with the 920D

all your answers/comments are correct, i wasn't expexting anything less as i know both their disadvantages and advantages, but i felt that this would do more than 4ghz on water thats all.

WJA96 · 29 Apr 2006 at 23:06

Byron said:
but i felt that this would do more than 4ghz on water thats all.

Ah.

I see your point. AFAIK, only the ES chips with the unlocked multipliers will do the very high FSBs, although people on these boards have reported getting 805's in excess of 4GHz.

I would agree that with water cooling it's highly unlikely to be the CPU that's giving a problem with overheating. Does the ASUS still have that stupid system for automagically calculating the clocks from the CPU FSB? If so, that might be part of the problem.