8 votes
Accepted

HP Proliant ml350p g8 not booting after installing new CPUs

There's a special firmware update needed to allow the use of E5-2600V2 CPUs in systems originally equipped with V1 CPUs. You need to download it to a USB key and boot the server from it in order to ...
ewwhite's user avatar
  • 198k
8 votes
Accepted

ProLiant Gen8 Microsoft BIOS records 8GB put POST only shows 4GB

You have mixed registered and unregistered. That won't work. All the ram needs to be registered or unregistered.
longneck's user avatar
  • 23.2k
7 votes
Accepted

Turning off HyperThread by BIOS or kernel?

Well, the first obvious difference is that noht doesn't actually do anything on modern Linux systems. This kernel boot option is long obsolete, and was replaced with maxcpus=. Setting maxcpus=m, ...
Michael Hampton's user avatar
7 votes
Accepted

Supermicro X9SCD won't enter BIOS (error code: AB)

Based on user discussions in a thread by Webjunkie in the ServeTheHome Forums it appears that there is a date dependent bug that causes this behavior on some of the Supermicro X9 boards: It seems ...
Håkan Lindqvist's user avatar
5 votes
Accepted

Update all firmware on HP DL380 G5 server

The firmware for that server is located on HP's website. Here's where to get it. Don't assume that a system this old has any recent firmware updates. Here's your BIOS download. Here's your ILO ...
ewwhite's user avatar
  • 198k
5 votes
Accepted

When to use X2Apic Mode?

Here's some info on what APIC is. When enabled, processor x2APIC support helps operating systems run more efficiently on high core count configurations and optimizes interrupt distribution in ...
Inxsible's user avatar
  • 343
5 votes
Accepted

Can upgrading the BIOS bork the filesystem?

A bad BIOS update can in principle break your system in just about any way. But a broken file system is a highly unlikely outcome of that. The most likely outcome of a bad BIOS upgrade is that the ...
kasperd's user avatar
  • 30.7k
4 votes
Accepted

Convert From UEFI to Legacy BIOS in Windows Server 2012

This is, in fact, possible: Boot the system using a linux live cd with gdisk on it. I used a CentOS 7 Core installation and used recovery mode. I did this by editing the grub boot options and ...
Justin Jahn's user avatar
4 votes

Is it possible to change BIOS settings from Linux?

On HPE servers you can change settings using utility called conrep. It's part of the hp-scripting-tools RPM. The usage is described here: h20566.www2.hpe.com/hpsc/doc/public/display?sp4ts.oid=5249594&...
Jaroslav Kucera's user avatar
4 votes
Accepted

How to upgrade BIOS on Dell PowerEdge T20 server?

Indeed, I find it rather non-standard, but you may install this executable file directly from the Boot Manager. Visit Dell Support. Enter your Service Tag. Navigate to Drivers and Download. Expand ...
Vlastimil Burián's user avatar
4 votes

GRUB hangs before menu, after a HDD upgrade. How to debug?

I'm going to answer the third part of my question, about a procedure to install GRUB with debugging enabled. I'd still appreciate informed suggestions about where the trouble may lie, or strategies ...
Cedric Knight's user avatar
4 votes

What is ME region in BIOS

BIOS ME stands for "BIOS Management Engine". You want to have that option unchecked when upgrading your BIOS. You haven't specified what board you have, but for my X9SCL-F, I had a problem when ...
Inxsible's user avatar
  • 343
4 votes

What is wrong with that Dell PowerEdge?

What else could be done before replacing the entire motherboard? You have bad hardware or a bad BIOS flash. If after replacing all of the other components the only thing left is the motherboard, it's ...
longneck's user avatar
  • 23.2k
4 votes

Is it safe to set RAM frequency beyond Intel's POR?

Is there potentially (and practically) any reliability issue regarding this setting? Yes, you're more likely to have memory stability issues if you run your memory system (memory controller on CPU, ...
Chopper3's user avatar
  • 102k
3 votes
Accepted

Performance impact enabling intel vt-x

Perhaps there was a time early on in the development of VT-x when it would reduce performance by a single percentage or two but those times are long gone and I wouldn't expect to see any impact ...
Chopper3's user avatar
  • 102k
3 votes

Change BIOS settings on Supermicro system via a script

Supermicro uses AMI Aptio BIOS. AMI provides SCE utility (scelnx for Linux) to change BIOS setting by scripts. Firstly you need to dump current BIOS settings to know settings UUIDs: scelnx /b /o /s /...
Vladimir Hulagov's user avatar
3 votes

HP Proliant Gen8 boot failure after bios upgrade and processor upgrade

There's a special firmware update needed to allow the use of E5-2600V2 CPUs in systems originally equipped with V1 CPUs. https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-c03911173&...
aquaspread's user avatar
3 votes

Convert From UEFI to Legacy BIOS in Windows Server 2012

Unfortunately you will need to reinstall after changing from uefi to legacy
Tim Penner's user avatar
  • 1,929
3 votes

How to update the BIOS for a Dell Poweredge 1950 without using an OS package

Dell provides .iso files with all BIOS and other firmware updates for their server products, called "Server Update Utility DVD ISO". You can burn it on a DVD, load it on the server and install them ...
Gerald Schneider's user avatar
3 votes
Accepted

Does any PCIe slot support NVMe SSD's automatically or do I need a specific M.2 slot?

NVMe is a standard for storage over PCI express (and later revised to support other transports, but that isn't relavent here). PCIe is an electrical interface that can be delivered on multiple ...
Peter Green's user avatar
  • 4,296
3 votes
Accepted

"Unsupported PCI device" errors during IBM System x3550 POST

This is the BIOS reporting that it does not have a mechanism to interact properly with the controller you installed. The BIOS cannot do any "initialization" for the device... however, not all devices ...
Jesse Adelman's user avatar
3 votes

Dell UEFI0023: Bios is unable to send the End of POST message to Management Engine because it is not responding

You can try changing the power supply hot spare options in the DRAC, which sometimes causes the input power to disconnect briefly and restart the management engine. Open Power / Thermal, Power ...
Greg Bray's user avatar
  • 5,670
3 votes
Accepted

shutdown -h now: FreeBSD server won't power down

From the FreeBSD man: -h The system is halted at the specified time. -p The system is halted and the power is turned off (hardware sup- port required) at the specified time. I ...
Johnny's user avatar
  • 180
3 votes
Accepted

Raid 1 default disk capacity is lesser than the disk sizes. Any ideas? Intel Raid Storage Technology - Raid from Bios

This could sound weird, yes, But some RAID systems could do one of the followings or both: change block size save some space (tough your case looks pretty much) for themselves metadata in this case, ...
Robert's user avatar
  • 146
2 votes

Bootrec /FIXBOOT vs Bootrec /FIXMBR

/FixMBR writes Disk's Boot Sector (commonly called MBR), while /FixBoot writes Partition's Boot Sector (commonly called VBR or PBR). All this boils down to how Windows boots on BIOS (non-UEFI) systems....
Irfan Latif's user avatar
2 votes

Is it possible to change BIOS settings from Linux?

This is an old question, so let me write an update-answer: Is it possible to change the BIOS settings from Linux? OS is SL6. It is possible using tool https://github.com/linuxboot/uefisettings or ...
Dmitrii Okunev's user avatar
2 votes
Accepted

Can I perform an IPMI bios update without a supported CPU?

This is taken from supermicros faq. It was a response from someone having the same issue. Yes, there is way to update your BIOS without buying a E5-2600 CPU by using IPMI Web Browser to update your ...
KyleN's user avatar
  • 36
2 votes

Update all firmware on HP DL380 G5 server

It would make sense to not make firmware changes unless it is absolutely required, for example you are hitting a boot time bug or incorrect fan operation or cpu is being throttled. Or in extreme cases ...
yetdot's user avatar
  • 176
2 votes

Super Micro hangs in BIOS enumerating devices

Your second hard drive is defective and is blocking the POST. You will need to physically unplug the drive and it should boot normally.
SomeDude79's user avatar
2 votes

HP Microserver boot issues

Your GRUB isn't being installed to the disk properly. This is usually due to buggy firmware or something related to that. OR you could have a faulty disk. Are you indeed using BIOS? I ask because the ...
Spooler's user avatar
  • 7,136

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