PE1950 power consumption problem

[Nick_Parrott at Dell.com]

All the system fans will run higher if the ambient temperature is high - recommended to maintain Server room at 18 degrees C or below to minimize extra cooling being done by system fans

To clarify a mention on the 1750 - it's just a noisy server, especially when degraded to a single PSU (Believe me, I had one in my lounge for a year and nearly threw it off the balcony.. numerous times..) however the 9th Gen machines are even noisier..

We do not advise to use only 1 PSU - total loss of redundancy (which should be treated as more important than power consumption!) and also more likely to induce a fault on the PSU in use, of course in a Cluster it can be done, but we don't advise it.

Only some revisions of the 1950 (with paticular DIMMs and PSUs) are Energy Smart - BIOS must be 1.2.0 or above - support will advise if this is the case with your 1950 config. If you have 1.6Ghz procs, they must be the Xeon 5110 - so check out the Dell Config Calc and you should get a good idea of what your machine SHOULD pull, if your co-lo say it's more, investigate ambient temperatures and check the ESM

Regards,

Nick


-----Original Message-----
From: linux-poweredge-bounces at dell.com [mailto:linux-poweredge-bounces at dell.com] On Behalf Of michalwd1979
Sent: 15 November 2007 05:36
To: linux-poweredge-Lists
Subject: Re: PE1950 power consumption problem

Faris,
>From my experience (I measured myself) 1 PSU really takes less power then 2 so this config makes sense at least with 2850. I think that with 1950 it should be similar. Also take care to have good cooling in server room - without good cooling dells runs theirs fans much faster, and the fans are second main power demanding component in server.
My fried who works for a hospital says that in fact IBMs with AMD CPUs are more power efficient then dells, but he can't makes real measurements, just compare the racks. It might be misleading because of different servers load.
And last thing what does it means "A bit to much". Pleas define it.

Michael W.


Dnia 14 listopada 2007 16:06 "Faris Raouf" <asterisk at raouf.net> napisał(a):

> Any suggestions folks?
> 
> I've just had a conversation with my co-lo company basically telling me my
> 1950 is taking a bit too much power. 
> 
> The processors are only 1.6Gig dual-core but they aren't the LV -- this
> isn't the EnergySmart one.
> 
> It has two PSUs but only one is plugged in.
> 
> It has 4x 2.5in 10k SAS drives (RAID5) but these are the ones you'd get in
> the EnergySmart version so they should be "good" in terms of  power
> consumption..in theory?
> 
> And looking to the future, what the hell am I going to do? I need another
> machine very shortly. I obviously can't get another 1950. Even the full
> EnergySmart version isn't that much better.
> 
> What we need is plenty of memory and processing power -- these things run
> multiple VPSes for web site hosting/php/mysql- and reliable redundant disks
> are vital. 
> 
> Faris.
> 
> 
> 
> 
> 
> 
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