Product comparison · 2 motherboards

ASUS P5Q-EM DO - Intel Socket 775 vs ASUS Rampage II Extreme

36specifications compared
19differ
17identical
14known for one product only

Key differences

Processor socket
- P5Q-EM DO - Intel Socket 775:LGA 775 (Socket T)
- Rampage II Extreme:Socket B (LGA 1366)
Number of memory slots
- P5Q-EM DO - Intel Socket 775:4
- Rampage II Extreme:6
Maximum internal memory
- P5Q-EM DO - Intel Socket 775:16 GB
- Rampage II Extreme:24 GB
RAID levels
- P5Q-EM DO - Intel Socket 775:0, 1, 0+1, 5
- Rampage II Extreme:0, 1, 10
USB 2.0 connectors
- P5Q-EM DO - Intel Socket 775:4
- Rampage II Extreme:3
Number of SATA connectors
- P5Q-EM DO - Intel Socket 775:6
- Rampage II Extreme:7
USB 2.0 ports quantity
- P5Q-EM DO - Intel Socket 775:4
- Rampage II Extreme:6
Ethernet LAN (RJ-45) ports
- P5Q-EM DO - Intel Socket 775:1
- Rampage II Extreme:2

Side by side

Differences highlightedShow differences only

Comparison of P5Q-EM DO - Intel Socket 775, Rampage II Extreme
50 specifications	A ASUS P5Q-EM DO - Intel Socket 775 View product	B ASUS Rampage II Extreme View product
Processor1 differ
Processor manufacturer	Intel	Intel
Processor socketDiffers	LGA 775 (Socket T)	Socket B (LGA 1366)
Compatible processor seriesKnown for one	Unknown — not stated by the source	Intel® Core™ i7
Memory2 differ
Number of memory slotsDiffers	4	6
ECC сompatibility	Non-ECC	Non-ECC
Maximum internal memoryDiffers	16 GB	24 GB
Storage controllers1 differ
RAID levelsDiffers	0, 1, 0+1, 5	0, 1, 10
Graphicsidentical
Maximum graphics card memoryKnown for one	1894 MB	Unknown — not stated by the source
Internal I/O2 differ
USB 2.0 connectorsDiffers	4	3
Number of SATA connectorsDiffers	6	7
Number of Parallel ATA connectors	1	1
S/PDIF out connectorKnown for one	Yes	Unknown — not stated by the source
Front panel audio connectorKnown for one	Yes	Unknown — not stated by the source
CD/AUX audio inKnown for one	Yes	Unknown — not stated by the source
ATX Power connector (24-pin)	Yes	Yes
Power fan connector	Yes	Yes
CPU fan connector	Yes	Yes
Number of chassis fan connectors	1	1
Chassis intrusion connector	Yes	Yes
Number of IEEE1394 connectors	1	1
Number of EATX power connectorsKnown for one	Unknown — not stated by the source	1
Rear panel I/O ports6 differ
USB 2.0 ports quantityDiffers	4	6
Ethernet LAN (RJ-45) portsDiffers	1	2
eSATA ports quantityDiffers	0	1
PS/2 ports quantityDiffers	2	1
Firewire (IEEE 1394) ports	1	1
VGA (D-Sub) ports quantityDiffers	1	0
HDMI ports quantity	0	0
DVI-D ports quantityDiffers	1	0
Headphone outputsKnown for one	1	Unknown — not stated by the source
Microphone inKnown for one	Yes	Unknown — not stated by the source
Network1 differ
Networking featuresDiffers	Gigabit Ethernet	Gigabit
Features2 differ
Motherboard form factorDiffers	micro ATX	ATX
Audio chipDiffers	Realtek ALC1200	ADI AD2000B
Audio output channels	7.1 channels	7.1 channels
Power source type	ATX	ATX
Compatible operating systemsKnown for one	Unknown — not stated by the source	Windows Vista
Overclocking featuresKnown for one	Unknown — not stated by the source	AI Gear 4 COP EX C.P.R iROG
Expansion slots1 differ
PCI Express x1 slots	2	2
PCI Express x16 slotsDiffers	1	3
PCI slots	1	1
BIOS1 differ
BIOS typeKnown for one	AMI	Unknown — not stated by the source
BIOS memory sizeDiffers	32 Mbit	16 Mbit
Weight & dimensions2 differ
WidthDiffers	244 mm	305 mm
DepthDiffers	244 mm	269 mm
Packaging contentidentical
Drivers included	Yes	Yes
Other featuresidentical
Floppy disk drive connector	Yes	Yes
Graphics controllerKnown for one	Intel 4500	Unknown — not stated by the source
Controller interface typeKnown for one	Unknown — not stated by the source	JMicron JMB363
Special featuresKnown for one	Unknown — not stated by the source	External LCD Poster CMOS EL I/O Q-Fan Plus ROG BIOS Wallpaper EPU-6 Engine Q-Connector Fan Xpert EZ Flash 2 CrashFree BIOS 3 MyLogo3

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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