@r.tanner.f unlocking cores that were disabled in manufacturing is a bad idea... you can get hardware faults, rendering artifacts, random errors, etc
they seem to have binned my HD7970 with at least a few bad shader cores enabled out of manufacturing as it is; unless I underclock significantly, I get random artifacts during any heavy 3d rendering
speaking of FirePro, did you see the release of the FirePro S10000? Aside from having a ridiculous 5-digit product name (which also makes it seem "over 9000"; hee hee), it's pretty crazy-sounding as far as performance
I'd love to have a FirePro S10000 rendering to my motherboard/IGP's display output using LucidLogix Virtu MVP
@r.tanner.f Pure IT. I'm a qualified architect, but going into IT now gives the chance of actually being able to afford to build my own hose some day, instead of design them for other people.
must have been cool being a CAD consultant... get to design some pretty ridikerous rigs
did you ever design >32GB onboard RAM? dual Xeon kind of deal? in a workstation?
dual Xeon, quad S10000, hardware RAID10 of SSDs... just contemplating it makes me hungry... hungrier than I am when I can smell pizza baking and haven't eaten in 12 hours
@allquixotic In 2006 I spent £2000 on a new CAD workstation (monitor not included). It's one of the stupidest things I have ever done. A few months later it was outclassed for far less cash.
there is a sweetspot, but for certain things where the highest-end part isn't significantly more expensive than the lowest-end (or the price difference is peanuts to the customer), why not? :P
for example, if the difference between the low-end part and the high-end part is $50 vs $150, most businesses, and even most home users who happen to be PC enthusiasts, won't care about the extra hundred bucks
but if it's $800 vs $3600, most people will think a bit more carefully
with the OSes we have these days (provided they are 64-bit!) more RAM is like having SSD performance for recently-accessed files in the page cache... squared because it's RAM which is even faster than an SSD
I generally don't scrimp and save on things like RAM capacity, storage capacity, peripherals, CD/DVD/BD-(ROM/RW), battery cell size, and so on... what I do sometimes lowball on are things like buying a graphics card that's within the highest performance category but not the highest clock (e.g. Radeon HD7950 instead of HD7970)
@BenBrocka Majority of those Dells/Hp's that look impossible to remove the HDD's from when opening the side... Take the front off and you'll find it slides forwards... :)
@Hennes faster RAM can matter if you are using integrated graphics for performance gaming or OpenCL, which is becoming a more realistic proposition for certain workloads (read: not CAD or scientific computing), since the iGPU of recent Intel CPUs uses system memory for VRAM
@BenBrocka They have to have them to sell the cases as 'ATX' as i think the standard governs the case has the cutouts, not the mobo shipping with an 'adaptor'... Like 99% of them do these days
i was reading some benchmarks of the Ivy Bridge CPU's iGPU, and the combination of mild overclocking, mild overvolting, and faster RAM made a much bigger difference in performance than extreme overclocking with the same RAM
long term vision: your motherboard has your display heads, period... no matter what, you want to plug in a monitor, you plug it into your motherboard. K. now with that resolved: all CPUs come with two types of cores: traditional cores with high throughput but small in number, and SIMD massively parallel cores with low throughput but very numerous. Then you have addon boards (PCI-e) that simply extend the number of available SIMD cores.
Given this hardware picture, with HSA, your operating system and compiler work together to determine the best "place" to run whatever code you wrote, whether it's on the SIMDs or the traditional serial path.
Then all "hardware accelerated 3d rendering" becomes raytracing on the SIMDs
you can't have different RAM operating at different speeds in the same coherent system tied to the same MMU
RAM requires very precise synchronization with the CPU to operate correctly, and it can't handle multiple different rates of synchronization for different RAM chips
@Hennes right, but any system that isn't memory coherent or cache coherent between CPUs is basically called one of three things: a "mainframe", a "supercomputer", or a "cluster"... i.e. logically separate environments
K. Would the difference between cas latency 9 and 7 be noticable enough to bother? I've got cas 9 in my PC, I have a chance to sell that to my parents and re-buy 4 sticks of cas 7 for like $30 more. Both are DR3 1333
Ben: You might even get better performance with one pair (even with theworse latency) than with two pairs since speeds drops if your CPU/northbridge has to address more memory ranks
The clearest information I found on ranks is here:
What difference does the 'Rank' of DIMMs make to server memory? For example, when looking at server configurations I see the following being offered for the same server:
2GB (1x2GB) Single Rank PC3-10600 CL9 ECC DDR3-1333 VLP RDIMM
2GB (1x2GB) Dual Rank PC3-10600 CL9 ECC DDR3-1333 VLP RDIMM
G...
The sole exception to that are synthetic benchmarks, and huge matrix multiplications and other science stuff which happens to use much more data than fits in the cache, and hence gets memory bound.
Using a IO bus of 667Mhz. And since it effectively reaches double speeds by using both clock flanks 667Mhz is sold as 1333 (2x667). So PC3-10666 is the same as DDR3-1333
Sounds like most of it is pretty minor, which isn't too surprising. I might spring for 2x 8Gb just because then I can expand easier if I ever need 32 GB...which probably won't be for a good while
First you need the right type (Fastpafe, SDRAM, DDR, DDR2, DDR3, ...) else it is not compatible. Second you want the minimum bus speed or more. (e.g. if you CPU can access the memory at '1333MHz' (actually 667Mhz) then you want RAM with is at least as fast. (So -1333 (used at 1333), or -1600 (used at 1333), ...)
Often you can use faster RAM speeds, but unless both your memory controller (which is on the CPU these days) and the RAM and the motherboard support it that is not guaranteed to work.
yeah, and never run a 32-bit OS with >= 4GB of RAM because PAE kicks in, which means they have to use an extra level of page tables and also bounce buffers for the graphics aperture, which slows everything waaaay down
All I want is a cheap-ish CPU cooler. The stock one on this one whines and I don't want to do an RMA (I have no idea if it's broken or it's just this loud)
Newegg reviews are generally pretty helpful. But they never agree on loudness
TBH I wanted a cheap, powerful processor I could abuse without feeling bad, so I don't really mind. Worst case I have to upgrade. I'd rather find out the $100 CPU is crap than the $300 one
A Prolimatech Panther seems nice. Fin spacing is 1.8 mm, which is larger then most coolers. This is good for quiet operation (but not for maximum cooling). If you do not OC but want quietness than this is good
With the 4.2 Ghz I'm not as inclined to OC, I'd rather keep it at that level but quiet. As is I might underclock to make the fan STFU till I get a better one
@paradroid Extended Page Tables, essentially version 2.0 of the virtualization instructions, which eliminates the page table overhead of guest virt, improving performance by 20 - 50% by drastically reducing memory read/write latency
@allquixotic I don't know, but I doubt it. That reminds me of the stumbling block I have with my Atom powered router/server long-running plan that I keep rediscovering every time I look into it again. Only the laptop versions of the Atom have VT-x at all.
@BenBrocka I got the nehalems with a nexus fan. It is nice and quiet, but the rest oif my computer still makes a lot of noise. You can spent a lot of effort to quieten a single component, but for a quiet PC you will need to quieten all of them.
even if they have very good paravirt, it can't stand up to the performance of hardware virt, unless you go to something like containers where the guests have a very narrow window of what they can do and essentially run within the host OS's same kernel
I got a 76GiB SSD (intel G2 80GB) and 4 1TB SATA drives and a 15k RPM SAS.. I would love to replace that with a 2 or 3 TB SSD, but unless I win the lottery...
@allquixotic No. I don't have an Atom. I said I have been thinking of building an Atom server/router for a while, but the problem is the lack of VT-x on the server chips (not looked at the latest generation).
Get a SSD controller. Max it out at 500MB. put two on a board and add a RAID chip (for striping). The cheapest RAID chip came with a PCI-X interface, so tag on a PCI-X to PCI-e chip. Profit
Yes, it's due to basic economic principles in effect.
Supply and Demand: The demand for such large RAM capacities on a single stick is mainly for servers at this time, and the amount manufactured (supply) will be higher. So, both Supply and Demand are higher for 8 GiB ECC RAM sticks than they a...
@Hennes how would you do two fans anyway? One fan for intake, taking intake from the cooler side, then one on the other side for exhaust, facing the case's exhaust?
Quick random question: I figured that to upgrade a laptop hard drive, you just need to buy a new 2.5" drive. However, I went onto TigerDirect and saw they had separate categories for 2.5" SSDs and "laptop drives". Is there a difference? Or is it entirely the same and they just apparently wanted to segregate SSDs from HDDs?
also, true laptop drives often (or at least sometimes) come with full disk encryption and may be designed for better mobility (moving around the unit while the HDD is in operation)
for SSDs obviously movement is not an issue unless you impact it on a surface
nods I am thinking of recommending an SSD to my brother to upgrade his laptop since he feels like it's a bit slow these days, though I think it's still good and just needs some maintenance. I just wanted to make sure that any recommendations aren't erroneous.
@Hennes I bought a CD drive just to be able to install an OS on my new PC (little did I know my external CD drive actually works as a bootable device...oh well)
If I buy a movie I used to RIP it and store the DVD in a safe place. These day I just buy the DVD, put it in a rack and torrent it (faster than ripping)
I'd like a Surface, but it'd have to be a Surface Pro. As much as I hate x86, the compatibility is important to me. But my Sony does the job.
I just can't really hold it with one hand very comfortably. But my hands don't grip on Gorilla Glass well, since they tend to be dry much of the time. Which is good when using it, but it means it slips when holding it with one hand. :P
@GrahamWager I'm exactly halfway through my Lumia 800 contract with Orange, so I think I may wait a while, even though they have an early upgrade thing. I like everything about the 920 apart from its size. It's massive.
I think I'll wait and see if Nokia manages to pack all that into something the size of my 800.
Sometimes I need to access a document from TFS on my iPhone/iPad (for example, in a meeting), but the web interface is so clunky, it's nearly impossible. Specifically, I can't bring up any attachments.
Is there an iDevice client that has been known to work well? I've seen 2 on the App Store bu...
@paradroid I have a Windows Phone 7.5 phone (Nokia Lumia 900). Not planning on upgrading to a WP8 device for a little while. I'll be running 7.8 until then.
I use a laptop both at home and work. On my Windows 7 laptop, it let me specify the work network as Work and my home network as Home, and associated sharing settings and default printers accordingly.
Now I am using a Windows 8 machine and I don't see the ability to separate Work and Home network...