Forum RSS Feed Follow @ Twitter Follow On Facebook

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
You have to register before you can post on our site.



Latest Threads
[REQUEST] Lenovo ThinkCentre M93p Tiny (...
Last Post: IsacCoelho
Yesterday 06:11 PM
» Replies: 65
» Views: 32605
[REQUEST] Lenovo B590 (H9ETxxWW) Whiteli...
Last Post: Vbreak
Yesterday 05:08 PM
» Replies: 818
» Views: 155190
[Request] Vostro 3250 7th gen support
Last Post: DeathBringer
Yesterday 03:15 PM
» Replies: 8
» Views: 0
[REQUEST] Chuwi Herobox unlocked BIOS
Last Post: alexpla37
Yesterday 02:53 PM
» Replies: 2
» Views: 777
[REQUEST] Bios Unlock Asus ROG GL552VW
Last Post: feluchi
Yesterday 05:37 AM
» Replies: 119
» Views: 59313
MB (A55M-E33 FM2+)
Last Post: DeathBringer
Yesterday 05:10 AM
» Replies: 5
» Views: 0
Last Post: alexpla37
Yesterday 03:03 AM
» Replies: 248
» Views: 411438
[GUIDE] How to modify AMI MSI BIOS to un...
Last Post: tarsen
12-07-2023 11:03 PM
» Replies: 55
» Views: 268168
Lenovo G580 20157: screen flickering
Last Post: tanexx
12-07-2023 08:37 PM
» Replies: 0
» Views: 0
[REQUEST] Acer Aspire V3-572(G,P) BIOS U...
Last Post: Dudu2002
12-07-2023 03:50 PM
» Replies: 94
» Views: 26644
[SOLVED] Lenovo E545 (HRETxxWW) WiFi + B...
Last Post: dandycheung
12-07-2023 05:17 AM
» Replies: 283
» Views: 69365
Lenovo G500 & G400 (78CNxxWW) CPU Upgrad...
Last Post: BoryaB
12-07-2023 05:14 AM
» Replies: 33
» Views: 0
HP BOSTON MS-7525 Xeon MOD Success
Last Post: homepeople
12-07-2023 02:41 AM
» Replies: 92
» Views: 61093
[REQUEST] Lenovo G710 BIOS Whitelist Rem...
Last Post: online-cw
12-07-2023 12:04 AM
» Replies: 579
» Views: 122407
Asus PN64-E1 Undervolting / RAM Timing u...
Last Post: loadit
12-06-2023 05:03 PM
» Replies: 12
» Views: 0
T430 will not flash bios
Last Post: g2s
12-06-2023 01:00 PM
» Replies: 0
» Views: 0
[REQUEST] Lenovo Z50-70 & Z40-70 (9BCNxx...
Last Post: madxj6
12-06-2023 10:34 AM
» Replies: 300
» Views: 85410
[REQUEST] Lenovo Z40-75 & Z50-75 (A4CNxx...
Last Post: nopparatm
12-06-2023 10:15 AM
» Replies: 68
» Views: 29032
GigaByte GA-945GZM-S2 rev. 6.6 & Pentium...
Last Post: DeathBringer
12-06-2023 07:19 AM
» Replies: 28
» Views: 17640
[REQUEST] Acer Aspire VN7-571G BIOS Unlo...
Last Post: paweltylman
12-05-2023 07:58 PM
» Replies: 70
» Views: 25199

Dell R820 - Add Xeon E7-x800 CPU Microcode Support
The goal: Add Xeon E5 and E7 series, revisions v3 and v4, CPU microcode to the Dell R820 BIOS
There’s a Reddit discussing the preliminary possibility of using E7 series processors that I stubbled across that got me thinking about it:
I saw that DeathBringer was able to mod a couple BIOSs for R810 and R910 (Thanks for that, BTW!)
So, hopefully its possible for the Rx20 series too.
I understand that there may be enough differences between processors in the E5 and E7 series and across the v1 - v4 revisions that microcode alone won’t work due to incompatibility of the chipset. Furthermore, some processors may attempt voltages or draw watts that can’t be supplied by the motherboard(s), so this is all an experiment. But, it sure looks very possible from what I’ve researched. If this does work for some newer v3 and v4 CPUs, some advantages could be the obvious things like more cores available, faster single thread performance, lower wattage per GFlop, better power management in general, and maybe, faster ram speeds (perhaps with additional BIOS hacks).
I’ve attached a CSV with a list of candidates for compatibility from Intel’s Ark. All processors listed in the doc are the same socket FCLGA2011 family and support DDR3 RAM. Some only support up to dual CPU configurations, which for those reading in the future, be mindful if trying in a 4-way configured machine.
The Dell R820 already supports Xeon E5-4600 v1 and v2. The latest BIOS 2.7.0 can be downloaded from:
My thought/hope is that microcodes can be harvested from other Dell BIOSs. Here are 3 machines, the CPUs they support, the BIOS version, and a link to their BIOS:
Dell R730, Xeon E5-2600 v3 and v4, v2.13.0:
Dell R830, Xeon E5-4600 v4, v1.16.0:
Dell R930, Xeon E7-4800/8800 v3 and v4, v2.11.0:
Also, there may be a lot of interest in the community to have modded R720 and R920 BIOSs with these same features, too.

Attached Files
.zip (Size: 2.69 KB / Downloads: 0)
Post a screenshot of Mainboard tab of CPU-Z.
(03-28-2023, 12:22 AM)DeathBringer Wrote: Post a screenshot of Mainboard tab of CPU-Z.

Hi!  Thanks for looking into this!

BTW, I noticed that I somehow linked to an old BIOS file for the R820 in my first post, I updated the link.

I'm running Ubuntu on the R820 at the moment so, I used CPU-X, I hope it has the info you need.  If not, I can install windows and get what you need.

Your motherboard is based on X79 chipset.
It supports Sandy Bridge and Ivy Bridge only.
(03-28-2023, 04:03 AM)DeathBringer Wrote: Your motherboard is based on X79 chipset.
It supports Sandy Bridge and Ivy Bridge only.

Ahh yes, there are significant socket differences from Ivy to Haswell.  You are right, thanks for pointing it out.  So, v3 and v4 Xeons are out.

I haven't researched past v3 processors but, it seems there are 3-ish or more sockets:

"Socket 2011"    = 2011-R   = Xeon E5-1600/2600/4600 series v2 = "Ivy Bridge-EP"
"Socket 2011-1" = 2011-R2 = Xeon E7-2800/4800/8800 series v2 = "Ivy Bridge-EX" = Xeon E7 Stepping "D1"
                                        = Xeon E7-4800/8800 series v3          = "Haswell-EX"
"Socket 2011-3" = 2011-R3 = Xeon E5-1600/2600/4600 series v3 = "Haswell-EP"

"2011" = Who knows = "2011" is a year not pin count = a generic reference that's often used as specific = mass confusion

I have to say, this has been infuriating AF to get a grasp on this socket.  Intel uses an inconsistent mash of at least 3 different descriptions for the same socket, or sometimes just officially ignores there are differences.  And knowledge out there on the web is just as spotty or misinforming or worse, depending on where you read.  With the poor and inconsistent descriptions from Intel, "2011" not actually being the pin count for all the sockets but rather a reference to a year, and the fact that some times v2 and v3 series overlap sockets and sometimes they don't, has caused a lot of confusion and misinformation, i.e.:  In some docs (not all), Intel draws a hard line between x600 and x800 v2 using 2011 and 2011-1 sockets (respectively) then, mixes v2 and v3 with 2011-1 and 2011-3 sockets then, Intel's Ark (the place you go for specific specs, thus, the place people reference for specific specs) lumps all the sockets as one socket, like shown in the CSV in post #1. There's probably a lot longer list i just don't have time to rant about.  Intel really dropped the ball with syncing vision management, marketing, and engineering together.

*steps off soapbox*

The R820 can be configured as 2- way or 4-way and, if running as 2-way, there are some great E5-2600 v2 CPUs for cheap that have better performance than easily obtainable/cheap E5-4600 v2 CPUs.  Ok then, the question still remains - what about microcode compatibility with E5-2600 v2 CPUs?
E5-2600 v2 and E5-4600 v2 use the same microcode.
(03-28-2023, 10:30 AM)DeathBringer Wrote: E5-2600 v2 and E5-4600 v2 use the same microcode.

Excellent!  That is information I haven't found anywhere else.  Knowing this, I will execute a purchase for a pair of E5-26xx v2.

I'll report back with a success/failure story in a couple weeks.

Thanks for your help and guidance.

Forum Jump:

Users browsing this thread: 4 Guest(s)