Lincs Motherboard Compatibility

[mdklassen]

>  the results for this i7-8700 are worse then my i5-4460 which really surprised me.

Weird, since both processors run each core at 3.2 Ghz.  Of course, "turbo-mode" may make a difference in performance.

Maybe, the difference is in the motherboard or the audio processing.

[mtmtmt]

No, I haven't run LatencyMon. You are seeing some interesting results that I can't explain.

[ngc2359]

I've now gone through everything I can find to maximize performance ... and it is at least now a little better - about equal to what the Dell i5 does ... more than likely in order to make things as cheap as possible the HP uses lower cost and lower performing aux chipsets including for networking and audio - which are the 2 things that effect LatencyMon the most it seems. I need the performance for a software driven radio implementation for ham radio and the latency is key... 

[mdklassen]

> I need the performance for a software driven radio implementation for ham radio ...

As they say in drag-racing: speed costs money.  How fast do you want to go?

I think that you need to find a "gaming" motherboard, where real-time performance is the goal.

Hopefully, its "integrated audio" circuitry will also be "high-performance".

Each core in your processor is "fast" -- nearly as fast as Intel's engineers can design such a processor.

So, there's not much to be gained by upgrading from your '3.2' up to something like '3.8' Ghz.

[ngc2359]

it appears that way ... you get what you pay for ... the i5 is doing the job fine as is - but I was looking at future proofing. My next issue is indeed the NVMe PCIe 4 ch support ... you successfully made it happen - I'm still waiting for HP to get back to me on whether or not its designed to work with it ... can you please tell me which SSD drive you went with? I see that Samsungs 950 has built in legacy support which if you used it might be the key ... 

[mtmtmt]

I got these two (one on the mobo and the other in PCI x16 adapter. Either can be used as boot drive)

Samsung 970 EVO 500GB - NVMe PCIe M.2 2280 SSD (MZ-V7E500BW)

Samsung 970 EVO 1TB - NVMe PCIe M.2 2280 SSD (MZ-V7E1T0BW)

KC3FCJ

[ngc2359]

Super - I'll get the 970 250G (all I need) ... this is for an Anan 8000 DLE running PowerSDR. Currently its working fine using the Dell i5-4460 with occasional clicks and pops ... I bought the HP i7 to future proof it ... but I'm getting latency numbers from the i7 that are no better than the Dell i5 ... 

K9RX

[mtmtmt]

Anan 8000 - good!

73!

[ngc2359]

Well it took a while but HP finally got back to me on whether or not the 590-p0070 MB m.2 socket supports NVMe speeds ... and to my surprise he said it does not!  It only supports SATA speeds. 

Of course this is contrary to your findings mtmtmt ... you said you had confirmed it was at the much higher speeds that NVMe PCIe 4-ch does (3000+Mb/s vs. 500Mb/s) .... but was that while plugged in using the PCIe card? That would of course work at the higher speeds as it IS a PCIe 4 ch bus ... did you test it while plugged in to the m.2 socket? I ask because I can't use the PCIe socket for this purpose - it will be populated by a video card. 

thanks - sorry for the additional questions. 

[mtmtmt]

Here are actual benchmark results done this morning for the drives

Samsung Magician Benchmark for Samsung SSD 970 EVO 500 GB (on motherboard in M.2 slot)

Sequential (MB's)
READ       WRITE
3,503       2,516

Random (IOPS)
READ       WRITE
271,972 241,699

Samsung Magician Benchmark for ST1000DM003-1SB102 (1 TB OEM HD)

Sequential (MB's)
READ       WRITE
190          167
Random (IOPS)
READ       WRITE
244          244