Optimising the Dell Poweredge 2950

Recently I picked up a Dell Poweredge 2950 and when I did initial power testing it didn't seem too bad with a peak of 350W under stress However now with all 6 Hard Drives & 8 slots of RAM full its measuring around 260W at idle and 390W at peak. While the peak wattage can't be dropped much unless I downgraded the CPU or switched to SSDs of which the SSD upgrade would cost way too much and the CPU downgrade might not be possible. So I started looking at methods to save power! To begin with after a bit…

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More blog posts soon?

Well I finally remembered I had a blog up here. I've been rather busy with lots of things including! Open University I'm almost at completion of another 2 Modules which if I pass both mean that I only have two left to complete which I'm enrolled to study on next year. New Job! As you may have seen I am now working for Pi Supply and over time you'll see more products of which some will be designed by me. So far we're already working on Three LoRa boards including the Raspberry Pi based Gateway HAT, IOT LoRa Node pHAT…

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Potential Flaw with a Voltage Regulator

In the updated version of my Ultimate Lora Backplane I was considering on changing the linear voltage regulator used to a switching one, this would mean while adding £3 to the BOM that it would be possible to use a 12V Power Supply instead without producing a lot of heat. As during some testing with the linear I measured 3W at 7.5V and 6W at 12V of which almost all of the 6W would be getting wasted as heat. I did the initial testing with the switching voltage regulator and measured around 3W at 7.5, 9 and 12v,…

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Ulti Lora Backplane V2 - Redesigning it, the plan

ohno here we go again. Of which I'm re-designing the Ultimate Lora Backplane! Whats changing? While the current one works great, there are a couple of flaws: Power & Heat - The NanoPi Duo produces quite a lot of heat and can draw quite a lot of power even while its not doing much CE Mark - The NanoPi DUO Has no CE / FCC Marks. Theoretically with a CE Marked SBC and a CE Marked Radio Concentrator it would be a fully CE compliant device as the board connecting them should be exempt. New plan: As of this I am…

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Ulti Lora Backplane - 1 Week On

Just a short blogpost following up on the Lora Backplane I designed. One of the main concerns was temperature. And while I didn't think it would be much of an issue because it has to be in a sealed box it was overheating to around 80 degrees. However since changing the powersupply from 12v to 7.5 this has dropped dramatically to around 50 Degrees peak. Very acceptable :D Otherwise the gateway has been working perfect and more reliably than my original Pi Zero setup over Wi-Fi. Improvements still to do Multi Packet Forwarder I'm still trying to sort out…

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My "Ultimate" Lora Gateway Backplane

My "Ultimate" Lora Gateway Backplane

A DIY Solution I'd be happy to use as a stable alternative to a premade. I've been working on this project for about a month and a half now with changes along the way. If you follow me on twitter you'll have likely seen the progress I made. I've also been posting devleopment updates at https://hackaday.io/project/90405-ultimate-lora-gateway-backplane This post will be a mix of a summary / analysis of the current design. Designing the board I wanted to build a DIY Gateway solution which I'd be happy to put somewhere and leave. My current gateway is on the…

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Blog Migration In Progress

My Blog has been down for around 16 hours now with the current host, cough scaleway cough. As they don't seem to care about their SLA or customer service I've moved back to Digital Ocean, at the time of moving to scaleway Digitalocean were still quite expensive. However now they've reduced their prices to offer a VPS for $5 a month, with 1GB of Ram and one CPU. While less in spec from previous experience their customer service is much better. I'll be starting to work on my ultimate lora backplane blogpost today and hopefully be able to move the…

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Best Method of Raising Funds Online For Small Projects

When funding the first Great Yarmouth TTN Gateway I originally setup a fundraising page while I was selling a few old bits I didn't need to also fund it. This article is intended towards makers who may want to raise funds for small projects they're working on or events etc. GoFundMe I used GoFundMe for this as it seemed to have the right balance of allowing projects that would be counted as funding personal things, and I had one person donate £10. However when I went to withdraw the total fees worked out at around £3! It seemed pretty pointless…

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