http://forums.anandtech.com/ AnandTech computer tech forums en Sat, 21 Nov 2009 13:29:25 GMT vBulletin 60 http://forums.anandtech.com/images/misc/rss.jpg http://forums.anandtech.com/ http://forums.anandtech.com/showthread.php?t=2026090&goto=newpost Sat, 21 Nov 2009 13:29:10 GMT Is it, from fastest to slowest: 1. X1800XT 512MB 2. GT120 3. 6800GS 256MB PCIe Is it, from fastest to slowest:
1. X1800XT 512MB
2. GT120
3. 6800GS 256MB PCIe ]]> Video Cards and Graphics StrangerGuy http://forums.anandtech.com/showthread.php?t=2026090 http://forums.anandtech.com/showthread.php?t=2026089&goto=newpost Sat, 21 Nov 2009 13:16:44 GMT So, first it was Eggo's. Now its pumpkin. What's next?

I remember the story about the New York City detective who saw the beginning of the crack epidemic. He saw the druggies needed baking soda to make the drug. He invested in Arm and Hammer and made enough to retire.

Predict the next big shortage! I want to retire, too. ]]> Off Topic techs http://forums.anandtech.com/showthread.php?t=2026089 http://forums.anandtech.com/showthread.php?t=2026086&goto=newpost Sat, 21 Nov 2009 12:29:44 GMT no good games :hmm: no good games :hmm: ]]> Off Topic JohnCU http://forums.anandtech.com/showthread.php?t=2026086 http://forums.anandtech.com/showthread.php?t=2026085&goto=newpost Sat, 21 Nov 2009 12:10:21 GMT 1) I'm going to need a turtleneck-like shirt to protect my neck from the sequins on the collar.

2) It'll be a good idea to have some kind of knee length, white tights. It sunlight, it will be very apparent what type of undergarments I am wearing.

3) While removing enough of the costume to urinate in a portajon during the marathon is relatively easy, if I have to do a number 2, that will require me to completely strip out of the costume. In a portajon. Will not happen.

More observations after the test run.

For those that do not know, I will be running the Rock and Roll Las Vegas Marathon as Elvis. I've got a slick running costume, white jumpsuit with blue sequined arm and leg inserts and a gold sequined collar. For the prerace events, I'll be getting a wig and some Elvis sunglasses too, but won't run the marathon in the wig.

Edit - No pictures will be provided. Don't ask. ]]> Health and Fitness Bateluer http://forums.anandtech.com/showthread.php?t=2026085 http://forums.anandtech.com/showthread.php?t=2026084&goto=newpost Sat, 21 Nov 2009 12:01:15 GMT I'm building an i5-750 system on the cheap, but I'm weary of overclocking and don't have any strong desire to endlessly tinker with this new build. If I'm trying to keep the memory budget around $100, should I buy DDR3-1333 with better timings (say, 8-8-8-21), or should I buy DDR3-1600 with poorer timings (9-9-9-24) with the idea that I might be able to run it at 1333 using better timings OR I could allow myself some room to overclock in the future if I decide I do want to do so?

I was considering Corsair, but it looks like G.SKILL has a better selection of products available through NewEgg, and I've heard good things:
http://www.newegg.com/Product/Produc...82E16820231275
http://www.newegg.com/Product/Produc...82E16820231277 ]]> Memory and Storage Bold http://forums.anandtech.com/showthread.php?t=2026084 http://forums.anandtech.com/showthread.php?t=2026081&goto=newpost Sat, 21 Nov 2009 11:25:36 GMT http://www.sciencedaily.com/releases...1113140422.htm

When reading this article, kind of obvious. It all comes back to resonance.

When playing with temperature, or pressure, or electrodynamic fields, or magnetodynamic fields, you can make the particles of the material oscillate in a similair phase. While each particle may be affected differently, they still have predefined behaviour. Lattice and the right elements at specific locations cause local resonance where electrons are repelled by the former and attracted by the next. The following up phases of these local resonance locations are important. What happens is, the lattice get's tuned for optimal electron flow, the resonance effect is that is is a self organizing principle flowing through the material.

I do wonder, what is the speed of electrons flowing in a material at room temperature ? And what will happen when the temperature increases or decreases.

I am betting it is not a linear function of increase of temperature is a lowering in speed of the moving electrons through the material.

For example : You take a thin electrical conducting wire and connect it to a thicker electrical conducting wire. Then apply a current flow by means of a source. You will notice that the speed of the electron flow is higher in the thin wire. When you take for example take 2 wires of copper and aluminium, and connect them together, the speed of the electronflow will be slower in the copper then in the aluminium. This is because the charge density is higher in copper then in aluminium. less movable electrons per atom but more atoms. This also explains the weight increase by the way. And the fact that copper conducts temperature flows better as well. For the same amount of current, the electrons have to travel less fast when compared to aluminium. Now since there is something like thermal vibration, it also means less encounters because of the slower flow. That is interesting i find, because less free electrons per atom means the electrons do not have to fight with eachother for a position around the nuclei. Very important is also the electron band.

Ohmic resistance rings a bell.

Now the type II super conductors do just that. Because of the alloys and the effect of temperature on the lattice the different speedup and slow downs of electrons, local resonance effects occur. Where the electrons are repelled and attracted in a synchronised matter. ]]> Highly Technical William Gaatjes http://forums.anandtech.com/showthread.php?t=2026081 http://forums.anandtech.com/showthread.php?t=2026080&goto=newpost Sat, 21 Nov 2009 11:09:15 GMT I'm looking for a sprite to use in a school assignment (2d platformer). Basically a portal or something similar that could serve as the exit from a level and would show up when you completed the objective (e.g. collected all 50 stars, because it's always stars). Something like the portals from Planescape: Torment, or what's on the very top of this sheet (but not so sideways, and it doesn't have to be that high-res either).

Google image search has failed me, and all the free sprite websites that have rips from old console games categorize by game/platform and not so much by keyword. What oldschool game has a nice little portal/vortex/whatever sprite I could use? ]]> Off Topic suszterpatt http://forums.anandtech.com/showthread.php?t=2026080 http://forums.anandtech.com/showthread.php?t=2026079&goto=newpost Sat, 21 Nov 2009 10:42:19 GMT My 42" plasma has this resolution, so how do I get a PC (Windows or Mac) to match this resolution? Anyone else face this? ]]> Kadarin http://forums.anandtech.com/showthread.php?t=2026079 http://forums.anandtech.com/showthread.php?t=2026078&goto=newpost Sat, 21 Nov 2009 10:27:21 GMT Title says all. Who would win? I think the cat might be able to tackle a bit better and scratch with its back legs. However, the chicken would peck the crap out of the cat. So, who is it? Title says all. Who would win?

I think the cat might be able to tackle a bit better and scratch with its back legs. However, the chicken would peck the crap out of the cat.

So, who is it? ]]> Off Topic Scholzpdx http://forums.anandtech.com/showthread.php?t=2026078 http://forums.anandtech.com/showthread.php?t=2026077&goto=newpost Sat, 21 Nov 2009 10:02:00 GMT Inspired by n7's overclocking experiment here (whooping 50 loops! 61 GFlops!), I decided to run Linpack one more time on my 955 BE system. While most here know Linpack is an excellent stability test, less known is it also is quite an important benchmark in HPC world. Linpack scores will show up in most server CPU reviews, though not in desktop CPU reviews.

I don't know how Linpack scores translate to performance in desktop applications, but we're enthusiasts, and we don't take kindly to real-world stuff anway - so why not check out how great our desktop CPUs are in this benchmark? Also don't forget that Linpack is one of the most stressful tests on CPU-memory subsystem, so if you've overclocked your CPU it's worth spending some time to make sure things are stable.

So let the fun begin. Let me loosely outline the rule so that we can gather some results that are meaningful. First, grab LinX. It's a GUI-enhanced version of Linpack and it will automatically run either 64-bit version or 32-version upon detecting your OS. (It also tells you if your system fails to finish the runs) Then,

1) Use all available memory. A system from a cold-boot will let Linpack have 80%+ of total system RAM.
2) Dual-core CPUs - at least 10 loops, Quad-core CPUs - at least 20 loops.
3) Report the Max GFlops achieved. LinX will give that number at the bottom.
4) Report the OS, CPU frequency, memory frequency as well as anything else you think that matters. ^_^

Here is mine.

CPU: Phenom II 955 BE
Core Frequency: 3600 MHz (1.35V, air-cooled by Zalman CNPS9700)
NB/Uncore Frequency: 2250 MHz (1.10V)
Memory Frequency: DDR2-900 (5-5-5-15)
Peak Performance: 45.33 GFlops

]]> CPUs and Overclocking lopri http://forums.anandtech.com/showthread.php?t=2026077 http://forums.anandtech.com/showthread.php?t=2026076&goto=newpost Sat, 21 Nov 2009 10:01:43 GMT Cern's LHC is up and running again after numerous problems and 14 months of being down!

http://news.bbc.co.uk/2/hi/science/nature/8371662.stm

Wow and all this happens 60km away from me, I can almost feel the beams ;) ]]> Distributed Computing Philippart http://forums.anandtech.com/showthread.php?t=2026076 http://forums.anandtech.com/showthread.php?t=2026075&goto=newpost Sat, 21 Nov 2009 10:00:59 GMT Hello friends i am nitin
i have recently purchased a system as follows
1- amd phenom x2 550
2-asus m4a78-em/1394 motherboard
3-powercolor hd 4870 1 gb gddr5 gpu
4-kingston 2 gb ddr2 ram
5-tagan u37 600watt psu
6-seagate 80gb ide harddrive

my room temperature is 31 to 34 degrees
i am using my old cabinet which has a good height but no fan and no ventilation in panels.
From the day i had assembled and operated the system i had noticed on the bios that within 15 minutes temperature of
cpu at 48 degrees and motherboard at 52 degrees under idle state .
When i start playing games after fifty minutes the bios shows cpu at 59 degrees and motherboard at 63 degrees.
[no cpu or gpu overclock infact on auto mode]
i had called amd india they told me that the phenom x2 550 can reach upto 80-90 degrees normally without burning and so 60 degrees is normal for such cpu.
And asus india told me that this motherboard can reach upto 75 degrees normally they suggested me to put a chassis fan on my cabinet for cooling will it work ?
Now please tell me is it normal temperatures of cpu 60 degrees and mobo 65 degrees for such system configuration? Should i apply thermal compound how and which?
What should i do now i am hopeful and eagerly awaiting genuine help please help. ]]> CPUs and Overclocking nitink http://forums.anandtech.com/showthread.php?t=2026075 http://forums.anandtech.com/showthread.php?t=2026074&goto=newpost Sat, 21 Nov 2009 09:55:15 GMT my girlfriends son has a sony vaio desktop pc.
everything is getting power.
but, even with everything unplugged, motherboard is totally silent. not a beep.
i take it i can safely assume it's dead? ]]> Motherboards TAandy http://forums.anandtech.com/showthread.php?t=2026074 http://forums.anandtech.com/showthread.php?t=2026073&goto=newpost Sat, 21 Nov 2009 09:54:25 GMT Hello friends i am nitin
i have recently purchased a system as follows
1- amd phenom x2 550
2-asus m4a78-em/1394 motherboard
3-powercolor hd 4870 1 gb gddr5 gpu
4-kingston 2 gb ddr2 ram
5-tagan u37 600watt psu
6-seagate 80gb ide harddrive

my room temperature is 31 to 34 degrees
i am using my old cabinet which has a good height but no fan and no ventilation in panels.

From the day i had assembled and operated the system i had noticed on the bios that within 15 minutes temperature of
cpu at 48 degrees and motherboard at 52 degrees under idle state .
When i start playing games after fifty minutes the bios shows cpu at 59 degrees and motherboard at 63 degrees.
[no cpu or gpu overclock infact on auto mode]
i had called amd india they told me that the phenom x2 550 can reach upto 80-90 degrees normally without burning and so 60 degrees is normal for such cpu.
And asus india told me that this motherboard can reach upto 75 degrees normally they suggested me to put a chassis fan on my cabinet for cooling will it work ?
Now please tell me is it normal temperatures of cpu 60 degrees and mobo 65 degrees for such system configuration? Should i apply thermal compound how and which?
What should i do now i am hopeful and eagerly awaiting genuine help please help. ]]> CPUs and Overclocking nitink http://forums.anandtech.com/showthread.php?t=2026073 http://forums.anandtech.com/showthread.php?t=2026072&goto=newpost Sat, 21 Nov 2009 09:54:09 GMT When take away the requirements for camshafts? The future of automobile is that the internal combustion engine will no longer requires camshafts to operate valves, but rather solenoids controlled by the PCM. You will see some of the most efficient engines coming to your favorite automobiles very soon, as I think BMW is perfecting this technology. The energy required to operate the camshafts could be ~30% of output, and if the camshafts are no longer used, the solenoid can be placed anywhere feasible. That means no more engine torque affecting steering, launch, etc... and balance can finally be achieved with not much efforts. So, with that in mind, what is your dream engine design? When take away the requirements for camshafts?

The future of automobile is that the internal combustion engine will no longer requires camshafts to operate valves, but rather solenoids controlled by the PCM. You will see some of the most efficient engines coming to your favorite automobiles very soon, as I think BMW is perfecting this technology.

The energy required to operate the camshafts could be ~30% of output, and if the camshafts are no longer used, the solenoid can be placed anywhere feasible. That means no more engine torque affecting steering, launch, etc... and balance can finally be achieved with not much efforts.

So, with that in mind, what is your dream engine design? ]]> The Garage SSSnail http://forums.anandtech.com/showthread.php?t=2026072