Questions tagged [xeon]

The Xeon is a brand of multiprocessing- or multi-socket-capable x86 microprocessors from Intel Corporation targeted at the non-consumer server, workstation and embedded system markets.

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What can be a reason for different clock speeds between sockets on 2 x Xeon Scalable 6148?

I have server with dual Xeon Scalable 6148 CPUs running HPC application. Base clock: 2.4GHz All core Turbo: 3.1 GHz Some processing threads are not scaling well and are sensitive to cpu clock. I ...
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Xeon E5 V3 - 2S vs. 4S CPUs - L3 Cache Size Impact on Performance

I've tried searching to answer this question, but I've found it difficult to get concrete information, so thought I'd ask here. Sorry for the complex title, but the essence of my question is this: in ...
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1answer
107 views

How to identify CPU(s) on Linux EC2 instance?

I'm running a Linux c5d.9xlarge instance and wondering what CPU it's using. Amazon's Instance Types webpage states: C5 and C5d 12xlarge, 24xlarge, and metal instances have the following specs: ...
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Memory controller or ECC errors on Xeon server. How to interpret the syslog entries?

I just got an alert from one of my servers, running FreeBSD 11.2 on a Xeon E5-1620 v4 with ECC. Its the first time I've seen an error like this, and there's a lot of detail. But it's also a one-off ...
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184 views

Does Xeon Harpertown (E5400 series) support ECC DDR3?

Is it possible to use Xeon E5450 with 8GB (preferably 16GB) DIMMs of DDR3 Registered Buffered ECC RAM? I checked Intel's Spec page for Xeon E5450 and Wikipedia Xeon#Harpertown Harpertown spec table ...
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So I installed a new dual XEON and 1 RAM slot is not getting recognized now

setup: 2x Sandy Bridge (previous CPU was 2x 2650L that was replaced by 2x 2643) 64GB RAM Intel s2600CP2 motherboard I'm having issues with the H1 RAM slot where no matter what stick I use there, it'...
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30 views

Changing Apple EFI for Xeon microcode

I have Mac Pro 3,1. I have just bought 2x Xeon E5450 SLBBM E0 stepping and found that there are unsupported by my Mac Pro. I tried to google for this problem and found that only SLANQ C0 stepping ...
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142 views

Intel XEON 9th generation on socket LGA 1151 (“H4”) and Windows Server 2012 R2

I'm about to buy a INTEL Xeon E-2246G (if I'm lucky to get one here) and put it into MSI MB Sc LGA1151 Z370-A PRO (https://www.msi.com/Motherboard/Z370-A-PRO) and I have two uncertainties: Does "1151"...
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For a PHP Web Server which processor is better an i9 or a Xeon? [duplicate]

Which processor is better for a PHP web server with multiple (50 websites) small to medium size websites? Will use Cloudlinux for this and most of the websites are using PHP 5.6 and below and most ...
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376 views

Wrong number of cpu cores for Xeon X5650 in Xcp-Ng

--- UPDATE 2 --- Never solved for Xcp-Ng 7.6. Issue does not exist with xcp-ng 8.0. I have a Intel Xeon X5650 processor (from eBay) but linux (Xcp-ng 7.6) only lists 8 using lscpu. However dmidecode ...
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86 views

I have code compiled for Intel i7: how can I know which Xeon processors it could run on?

I have code compiled for Intel i7: how can I know which Xeon processors it could run on? There seems to be no clear way to know. I developed these rules-of-thumb, but am unsure if they suffice. The ...
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1answer
56 views

Can I replace one Intel Xeon e5-2603v3 with dual E5-2690v4 on HPE server?

I've got an entry level HPE SRV 778640R-B21 which supports dual CPU but comes with an E5-2603v3 (LGA2011-3 / DDR4). It has also 550W power supply. I want to remove the current cpu and add a pair of ...
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81 views

HP Proliant ML350 CPU Turbo

I am unable to get my CPU to go into Turbo ML350 with 1 x Xeon 4110, Windows Server 2016 Supposed turbo speed is 3ghz I have the server set "Static High Performance Mode" from the iLo, and "High ...
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1answer
2k views

Intel Turbo not working in CentOS 7 with Intel Xeon Scalable (and other newer CPUs)

We have a small cluster where I work, that I look after. The nodes run CentOS 7.5. Our older nodes use Xeon E5 v4 CPUs, mostly the E5-2699 v4. With the older nodes, the Intel Turbo Boost works ...
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Issues with HP BL460c Gen8 - wrong processor(s) and memory showing? [duplicate]

I have searched all the posts possible (dip switch resets 1,5,6 etc) and reset via removal of Battery for days, still no good solution. I bought a matched pair of Xeon E5-2650V2 2.60 GHz for each ...
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1answer
77 views

Fast CPU v Lots of cores… which is best? [duplicate]

We run an ecommerce platform with many sites and lots of crons continually running etc... Resources (images, js) are primarily delivered via CDN. Our server runs CPU intensive apps such as CXS Watch ...
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396 views

Server not powering on after upgraded to Intel Xeon E5-2695 v2 [duplicate]

Have a ProLiant DL360p Gen8. Old CPUs were E5-2670. Upgraded HP latest ROM Server does not power on any more. See amber LED light on the CPU in the Systems Insight Display. As far as I know this CPU ...
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4answers
960 views

DL580 G7 giving only low performance on CPU (E7 4870)

I have a DL580 G7 with four E7 4870 and 128gb of RAM installed (eight cartridges with 2x 8gb each). The operation system is Ubuntu 18.04. There is a TITAN X on the pcie16 and the obligatory p410i ...
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1k views

Non-ECC RAM for virtualization?

I'm on a quest of building a virtualization server. However, I was asking myself a question: should I stick with non-ECC RAM for this server or not? This because I found a Xeon CPU that falls in the ...
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2k views

Intel Xeon 6134 + One DIMM per channel or two DIMMs per channel for maximum memory bandwidth?

I'm unable to find this critical piece of information in spec sheets. Appreciate any insight. We're purchasing servers for HPC work with intel Xeon Gold 6134 (Skylake) cpus I want maximum memory ...
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Does including two processors increase max RAM memory?

If E3-1285 v6 supports a maximum of 64 GB of RAM, does using a dual socket motherboard increase max memory? I guess not, but would like to know the reason. My logic says that if RAM is shared, both ...
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using correct number of DIMMS for best memory performance Intel Xeon scalable cpu

I am trying to understand what I guess is called a balanced memory configuration. For the newest cpu's from Intel at this point in time, January 2018 which are for example Xeon 8180 and Xeon 6154, ...
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727 views

Xeon Processor or Corei7 for Mysql as a Database Server? [duplicate]

I have a wordpress database (4GB). I have two servers with the following spec: Processor Cores RAM HDD DBMS 1. Xeon X5650 2.6GHz 6 64GB 250GB SSD Mariadb ...
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2answers
524 views

Intel Xeon Gold 6140 and Windows 10

Can I use following setup with Windows 10 or do I need Windows Server? CPU - 1x Intel® Xeon® Gold 6140 Processor MB - ASUS WS-C621E-SAGE
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2answers
2k views

Ideal Number of Ram sticks for a Xeon Silver 4114

A Skylake-based Intel Xeon Silver 4114 CPU can access up to 6 DDR4-2400 memory sticks at once. It has two memory controllers with three channels per controller for a total of six memory channels. ...
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1answer
361 views

Buying used Xeons from China or South Korea [closed]

I'm not sure why so many of the Xeons selling on Ebay are coming from China and South Korea. Prices are extremely reasonable (delivery especially given the distance) and I'm wondering if these are ...
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1answer
194 views

CPU core id values not contiguous

I am trying to understand the "core_id" sequence reported. My machine has 2 sockets, 20 cores and hyperthreading enabled (80 CPU). I am looking at the "core_id" values which are reported using: root@...
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92 views

server freezing and cannot find reasons

My server got random hanging, sometime 2 weeks sometime 2-3 days. I updated Kernel to from 3 to 4, the server is still freezing randomly. I did many test e.g. memtest86, CPU stress test. after the ...
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111 views

Why Xeon x3430 running at only 1.20 GHZ even on full workload?

In our office we have two Dell PowerEdge R310 Servers which have Xeon X3430 CPUs and should run at 2.40 GHz. Both have Windows Server 2008 R2 Enterprise installed. Unfortunately one of them is ...
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199 views

Xeon 5649 doesn't POST in Supermicro X8DTE-F motherboard

I have a Supermicro board running dual Xeon chips for different little projects. When I originally put it together, I used l5520 chips that are still working in it. With the price drop of 1366 chips, ...
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42 views

Disk Is Running Full - While Snapshotting, Coincidence Or Possible Cause?

My disk is running full so I checked server logs and largest files and everything is ok. IOTOP also fine. I deleted 1 GB of files for testing purposes and it takes a minute until the disk runs full ...
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1answer
90 views

Intel® Server Board S1200SPL - Xeon with IGP Required?

According to the Intel ARK page, it indicates that this board has integrated graphics: http://ark.intel.com/products/88263 Does this mean I can put an Intel Xeon processor in it that doesn't come ...
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2k views

Can I mix ECC RDIMMs with different rank?

I have an Intel S5520SC motherboard with two Intel Xeon E5620 CPUs installed. It currently has six KVR13R9D4/8I DIMMS - I want to add another six DIMMs (48GB of RAM) to upgrade this workstation to ...
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14k views

Intel Xeon processors: Difference between 2S/4S and S2S/S4S scalability

While comparing Intel Xeon E5 and E7 processors, I've noticed that E5 processors are specified for 2S or 4S scalability, while E7 processors are specified for S2S, S4S, or S8S scalability. I ...
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552 views

Calculation of Xeon server memory bandwidth

I am looking at a dual socket server based on the Intel(R) Xeon(R) CPU E5-2640 v3 @ 2.60GHz The configuration looks like this. 4 memory channels per socket DIMMs are 8x32 GB DDR4 2133/1866 modules ...
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1answer
866 views

If I have two 2670 Xeon srokx processors does it have the same stepping?

If I have 2670 Xeon SROKX processors does it have the same stepping? (the processor picture attached) Is srokx the stepping number? I want to use two of these processors in a dual socket motherboard. ...
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4k views

HP Proliant ml350p g8 not booting after installing new CPUs

Our server: HP Proliant ml350p g8 has a single Xeon e5-2609 1.4Ghz processor. Our manager wanted to update it a little, so we looked at 2x E5-2609V2 processors...we ran it past HP Enterprise chat who ...
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1answer
106 views

Upgrading CPUs for my HP G5 DL380 - will the cooling suffice?

Just a month ago or so, I bought my first rack server for some personal number crunching. It's been great fun playing around with and I'm thinking about upgrading the CPUs to get more bang for the ...
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1answer
39 views

N0.C1.D0 meaning in dimm config?

Could somebody explain to me what this code means in dimm config? I have E2680 server. Below is the log: N0.C0.D0 : 16 GB (1Rx4) DDR3 - bank: 8, row: 0x20000, col: 0x800, 800 8-6-6 cwl= 5 (...
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1answer
11k views

Proxmox KVM fails to start

My new server is Fujitsu Primergy RX1330 M1 with Intel® Xeon® Processor E3-1220, running either Proxmox V4 or Proxmox V3.4 i have the following problem. When i create a new virtual machine, during ...
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I need to add 2nd CPU to my server running ESXi5.1, will it need to upgrade the licence too? [duplicate]

I have a server running with Intel(R) Xeon(R) CPU E5-2630 v2 @ 2.60GHz cpu, the main board have more PCI slots which I needed to use but it only works with a second CPU. here is the 2 important ...
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1answer
503 views

Dell PowerEdge R710, Dual Xeon E5630, RAM upgrade: 12 x 2GB 1Rx8 UDIMMs won't POST

I'm upgrading a Dell R710 from single CPU to dual CPU with Xeon E5630 processors harvested from multiple R710 systems and combining into one. I have 18 2GB UDIMMs to play with, all from Dell ...
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1answer
912 views

XenServer has two processor, but only one is visible

I have a pool of two identical HP DL 360 G7 (dual processor Intel Xeon X5650), with two processors installed (the BIOS show both), running XenServer 6.5. Intel says that this processor has six cores (...
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149 views

Are 2Rx4 DDR2 ECC memories compatible with Intel Xeon on socket LGA771?

For my Intel Xeon L5420 (LGA771) I bought 24GB of DDR2 ECC Reg, 2Rx8, knowing that 2Rx4 are specific to AMD chipsets or, at least, the non-ECC ones are. However, this slick seller instead sent me ...
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1answer
3k views

Cannot enable VMware EVC for Xeon E5-2630v3 (Haswell) on vSphere 6.0

I've got two DELL PowerEdge R730 servers loaded with a dual Xeon E5-2630v3 Haswell. When I installed VMware vCenter, I tried to create a Cluster with VMware vMotion EVC mode set to Haswell, since it's ...
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819 views

Turbo boost is on even when CPU utilization is at 0 percent

My new server is behaving strangely, it seems that turbo boost is always on even when there's no utilization. The OS is windows server 2012 r2 and power option is set to balanced with default BIOS ...
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1answer
451 views

intel xeon e3 1231 v3 server load

I'm running a server with a single Intel Xeon E3-1231 v3 processor which is used as a virtual machine host (host OS is CentOS 7 and I'm using the KVM hypervisor via virt-manager). I created 4 virtual ...
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11k views

Two different Intel xeon e5 24xx on one dual-socket motherboard

Can I use two different e5 24xx on one dual socket motherboard or must the CPU's be identical?
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2answers
1k views

IBM x3550 M4 (7914) CPU upgrade to v2 Xeon?

IBM released the x3550 M4 originally with the v1 E5-2600 CPUs; later on, when v2 was announced they did the refresh and started telling them with v2 CPUs. Can I just order two v2 CPUs for my existing,...
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2k views

Is there a way to use a Xeon Phi 31S1P without a server case? [closed]

Due to the current ridiculous Xeon Phi 31S1P offering (~90% discount until end of year), we were tempted to investigate in the capabilities of this coprocessor, which seems well tailored for some of ...