Exceeding P2B-D MB MFR's Memory?

jwsarge · Aug 3, 2014

Hello,

I have an ASUS P2B-D MB w/2 P-II processors which is limited per the manual to 4 3.3Volt 168-pin DIMMS with (at the time it was written) a total max of 1GB (4 256MB DIMMS). My question is can I exceed that? There are DIMMS available now that are 1GB 168-pin 3.3 volt unbuffered SDRAM hence I am curious if I can exceed the manufacturers limits (at that time) by replacing the 256MB existing DIMMS with 1GB DIMMS providing the other specs are the same (168-pin 3.3 volt unbuffered SDRAM).

This workstation I use with Debian Linux and it is a great machine to spend time on hence my desire to exceed the published memory specs if possible.

Any thoughts will be most appreciated and thanks in advance...

eidairaman1 · Aug 3, 2014

Get the latest bios and then try a 1GB pc100 or pc66 module, as long as its not greater than pc100 you should be fine unless if there are memory tuning features in that board. the chipset could be a limiting factor...

jwsarge · Aug 3, 2014

Thank you, I overlooked mentioning the PC-100 compliant DIMM requirement. If a 1GB PC 100 module works can I assume that I can then add 3 more? Any other thoughts will be most appreciated...

Jstn7477 · Aug 3, 2014

The 440BX chipset only supports up to 1GB of RAM, and you should be glad it does since a lot of other Intel chipsets around that time were limited to 512MB or less, including my nice Pentium III-S 1.4GHz and Intel D815EFV rig I have right now. I did acquire a P2B-F years ago and I'm fairly sure it didn't support larger than 256MB modules, I inserted a 512MB module and it only saw half of the capacity. When chipsets say they have a maximum memory limit, they mean it. 1GB is great for a chipset from 1998.

http://en.wikipedia.org/wiki/List_of_Intel_chipsets#Pentium_Pro.2FII.2FIII_chipsets

OneMoar · Aug 3, 2014

1GB is pretty much the limit you might be able to get 1200 but the chip-set isn't capable of addressing much more then that
honestly the system is to old to be of any use for anything other then the most basic of tasks more ram isn't gonna help that woefully inadequate cpu or system bus or any of the other bottle necks in a system of that `vintage` not when a used socket 775 system can be had for 75 to 100 bucks

Aquinus · Aug 3, 2014

According to Intel's spec sheet, 1GB requires RDIMMs to work on this chipset.

eidairaman1 · Aug 3, 2014

With 1 gb of ram that board will run win 7

jwsarge · Aug 3, 2014

Thank all of you for your input, most appreciated. That answers my question on the issue, leave it as is...

System Name	PCGOD
Processor	AMD FX 8350@ 5.0GHz
Motherboard	Asus TUF 990FX Sabertooth R2 2901 Bios
Cooling	Scythe Ashura, 2×BitFenix 230mm Spectre Pro LED (Blue,Green), 2x BitFenix 140mm Spectre Pro LED
Memory	16 GB Gskill Ripjaws X 2133 (2400 OC, 10-10-12-20-20, 1T, 1.65V)
Video Card(s)	AMD Radeon 290 Sapphire Vapor-X
Storage	Samsung 840 Pro 256GB, WD Velociraptor 1TB
Display(s)	NEC Multisync LCD 1700V (Display Port Adapter)
Case	AeroCool Xpredator Evil Blue Edition
Audio Device(s)	Creative Labs Sound Blaster ZxR
Power Supply	Seasonic 1250 XM2 Series (XP3)
Mouse	Roccat Kone XTD
Keyboard	Roccat Ryos MK Pro
Software	Windows 7 Pro 64

System Name	Awesomesauce 4.3 \| Laptop (MSI GE72VR 6RF Apache Pro-023)
Processor	Intel Core i7-5820K 4.16GHz 1.28v/3GHz 1.05v uncore \| Intel Core i7-6700HQ @ 3.1GHz
Motherboard	Gigabyte GA-X99-UD5 WiFi LGA2011-v3\| Stock
Cooling	Corsair H100i v2 w/ 2x EK Vardar F4-120ER + various 120/140mm case fans \| Stock
Memory	G.Skill RJ-4 16GB DDR4-2666 CL15 quad channel \| 12GB DDR4-2133
Video Card(s)	EVGA GTX 1080 Ti Hybrid SC2 11GB @ 2012/5151 boost \| NVIDIA GTX 1060 6GB +200/+500 + Intel 530
Storage	Samsung 840 EVO 500GB + Seagate 3TB 7200RPM + others \| Kingston 256GB M.2 SATA + 1TB 7200RPM
Display(s)	Acer G257HU 1440p 60Hz AH-IPS 4ms \| 17.3" 1920*1080 60Hz wide angle TN notebook panel
Case	Fractal Design Define XL R2 \| MSI
Audio Device(s)	Creative Sound Blaster Z \| Realtek with quad stereo speakers and subwoofer
Power Supply	Corsair HX850i Platinum \| 19.5v 180w Delta brick
Software	Windows 10 Pro x64 \| Windows 10 Home x64

System Name	RPC MK2.5
Processor	Ryzen 5800x
Motherboard	Gigabyte Aorus Pro V2
Cooling	Enermax ETX-T50RGB
Memory	CL16 BL2K16G36C16U4RL 3600 1:1 micron e-die
Video Card(s)	GIGABYTE RTX 3070 Ti GAMING OC
Storage	ADATA SX8200PRO NVME 512GB, Intel 545s 500GBSSD, ADATA SU800 SSD, 3TB Spinner
Display(s)	LG Ultra Gear 32 1440p 165hz Dell 1440p 75hz
Case	Phanteks P300 /w 300A front panel conversion
Audio Device(s)	onboard
Power Supply	SeaSonic Focus+ Platinum 750W
Mouse	Kone burst Pro
Keyboard	EVGA Z15
Software	Windows 11 +startisallback

System Name	Apollo
Processor	Intel Core i9 9880H
Motherboard	Some proprietary Apple thing.
Memory	64GB DDR4-2667
Video Card(s)	AMD Radeon Pro 5600M, 8GB HBM2
Storage	1TB Apple NVMe, 4TB External
Display(s)	Laptop @ 3072x1920 + 2x LG 5k Ultrafine TB3 displays
Case	MacBook Pro (16", 2019)
Audio Device(s)	AirPods Pro, Sennheiser HD 380s w/ FIIO Alpen 2, or Logitech 2.1 Speakers
Power Supply	96w Power Adapter
Mouse	Logitech MX Master 3
Keyboard	Logitech G915, GL Clicky
Software	MacOS 12.1

System Name	PCGOD
Processor	AMD FX 8350@ 5.0GHz
Motherboard	Asus TUF 990FX Sabertooth R2 2901 Bios
Cooling	Scythe Ashura, 2×BitFenix 230mm Spectre Pro LED (Blue,Green), 2x BitFenix 140mm Spectre Pro LED
Memory	16 GB Gskill Ripjaws X 2133 (2400 OC, 10-10-12-20-20, 1T, 1.65V)
Video Card(s)	AMD Radeon 290 Sapphire Vapor-X
Storage	Samsung 840 Pro 256GB, WD Velociraptor 1TB
Display(s)	NEC Multisync LCD 1700V (Display Port Adapter)
Case	AeroCool Xpredator Evil Blue Edition
Audio Device(s)	Creative Labs Sound Blaster ZxR
Power Supply	Seasonic 1250 XM2 Series (XP3)
Mouse	Roccat Kone XTD
Keyboard	Roccat Ryos MK Pro
Software	Windows 7 Pro 64

Exceeding P2B-D MB MFR's Memory?

jwsarge

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eidairaman1

The Exiled Airman

jwsarge

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Jstn7477

OneMoar

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Aquinus

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eidairaman1

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jwsarge

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