I concur on using the AMD machines. Low DPC latency, no IRQ stacking issues and they are a good bargain too. All of my SDR PCs are now multicore AMDs. I am sure Neal can add his invaluable knowledge to this mix too. I believe he sleeps with motherboards dancing in his head.
-Tim From: George Works [mailto:[email protected]] Sent: Friday, November 12, 2010 8:50 AM To: Tim Ellison Cc: Ian Wade G3NRW; [email protected] Subject: Re: [FlexEdge] Is this PC good enough? If a desktop PC will work for you, there are some very inexpensive 4 core AMD Phenom II machines with 6GB for sale these days in the $500 range, including a pretty good Firewire port and Windows 7 64 bit. I use one from CompUSA with my Flex-3000, and also run a Flex-1500, RMS Pactor, RMS Winmor, DDUtil, MARS-ALE and several other things on it at the same time, 7x24, without problems. George, PJ5/KJ6VW On 12-Nov-10 9:32, Tim Ellison wrote: I hate to say it, but it probably isn't going to cut it unless you are willing to spend some serious time optimizing (doing a clean re-install and shutting down un-needed services) XP. This PC would be fine for a FLEX-1500 since it would not have to deal with the isochronous Firewire overhead and higher sampling rates. -Tim -----Original Message----- From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Ian Wade G3NRW Sent: Friday, November 12, 2010 3:26 AM To: [email protected]<mailto:[email protected]> Subject: [FlexEdge] Is this PC good enough? I've been playing with 2.0.16 in demo mode, and really like it. So much so that I am now looking (again!) at buying a 3000. The question now is, is my PC good enough? I've read the KB article "What kind of computer should I buy ...", and have come to the conclusion that my PC is below the minimum requirements. However, before I discard it completely for Flex use, here are some of its capabilities: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Dell 8300 Pentium 4A, 2533 MHz (4.75 x 533) L2=512KB Motherboard chipset: Intel Canterwood i875P 1GB Dual DDR SDRAM 333MHz Video: ATI Radeon 9800 Pro 128MB Win XP Pro 32-bit ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ DPC Latency: With no apps running: about 5uS With 2.0.16 running: mostly 15-50uS, peaking very occasionally to 150uS max 2.0.16 CPU utilization (demo mode, no Flex hardware, 192kHz audio): Mostly around 45-50% With NB enabled: up to 90% Bottom line: With no other apps running, is there any chance that this will fly, if only as a stop-gap until I get a more suitable machine? Or am I simply wasting my time? -- 73 Ian, G3NRW _______________________________________________ Flexedge mailing list [email protected]<mailto:[email protected]> http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software. _______________________________________________ Flexedge mailing list [email protected]<mailto:[email protected]> http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software. _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
