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Eclipse Matrix A255R487 review

Our Rating :
Price when reviewed : £500
inc VAT

The A255R487 has a good specification, but its monitor is mediocre and its flimsy case should be avoided.


3.1GHz AMD Phenom II X2 550, 4.000000 RAM, 19in 1,440×900 display, Windows Vista Home Premium

Eclipse Computers

Eclipse’s Matrix A255R487 has a good specification for its price.

Its dual-core Phenom II X2 550 is a fairly powerful processor, as each of its cores runs at a heady 3.1GHz. This made it particularly quick in our image-editing test, plus it performed well in our other benchmarks.

Unfortunately, the A255R487’s appeal is tarnished by a cheap, flimsy case that does nothing to dampen the constant whining hum coming from inside it. The case became very warm to the touch when the PC had been on for less than an hour, despite remaining largely idle. This can partly be explained by the absence of a rear fan to help remove the hot air from the internals. Oddly, the Matrix is very power-hungry, drawing 162W when idle – more than twice the power we’d expect.

We were more impressed by what we found inside the case. The 512MB ATI Radeon 4870 graphics card performed brilliantly in Crysis and Call of Duty 4. The MSI K9A2 Neo-F motherboard has a gap beneath the PCI-E x16 slot, so the double-height graphics card didn’t block any other expansion slots. The board has two PCI slots, one PCI-E x1 slot and a PCI-E x4 slot, none of which is used, so there’s plenty of upgrade potential. There are only four SATA ports, but two of these are free. There are lots of spare 3?in and 5?in drive bays, although they’re very basic metal frames with no rails, caddies or vibration damping. Disappointingly, the Matrix comes with a measly 250GB disk.

The 19in widescreen Hyundai BlueH H95W monitor isn’t great, either. Its maximum brightness makes whites look dull and greyish, and viewing angles are tight. The Microsoft Basic keyboard and mouse set are adequate, despite slightly spongy keys.

The A255R487 may be fairly well specified, but the bargain-basement monitor limits its appeal. The biggest problem is the noisy and poorly cooled case, which feels flimsy: an LED light bar in the front panel came loose during our testing. CCL’s CCL-CS1009 performed better in most of our tests, has a larger hard disk and a much better case.

Basic Specifications

Rating ***
Processor AMD Phenom II X2 550
Processor external bus 200MHz (2GHz HyperTransport)
Processor multiplier x15.5
Processor clock speed 3.1GHz
Processor socket AM3
Level 1 cache 2x 128KB
Level 2 cache 2x 512KB
Memory 4.000000
Memory type PC2-6400
Maximum memory 8GB
Motherboard MSI K9A2 Neo-F
Motherboard chipset AMD 770 + ATI SB600
Power consumption standby 4W
Power consumption idle 162W
Power consumption active 270W


USB2 ports (front/rear) 2/4
Firewire ports (front/rear) 0/0
eSATA ports (front/rear) 0/0
Wired network ports 1x 10/100/1000
Wireless networking support none
Other ports none

Internal Expansion

Case midi tower
PCI-E x1 slots (free) 1 (1)
PCI-E x16 slots (free) 1 (0)
Free Serial ATA ports 2
Free memory slots 2
Free 3.5in drive bays 5

Hard Disk

Hard disk model(s) Seagate Maxtor DiamondMax 23 STM3250318AS
Interface SATA 300
Total storage capacity 250GB
Spindle speed 7,200rpm


Graphics card(s) 512MB ATI Radeon 4870
Graphics/video ports 2x DVI, TV out


Sound outputs 7.1 line out, stereo line out, mic out
Speakers none

Removable Drives

3.5in floppy drive no
Supported memory cards none
Optical drive model TSST SH-S223B
Optical drive type(s) DVD+/-RW +/-DL


Viewable size 19 in
Screen model Blue-H H95W
Native resolution 1,440×900
Response time 5ms
Screen inputs DVI, VGA

Other Hardware

Modem No
Keyboard Microsoft Wired Keyboard 400 v1.0
Mouse Microsoft Basic Optical Mouse 1.0A


Software included none
Operating system Windows Vista Home Premium
Operating system restore option Windows disc

Buying Information

Warranty one year RTB
Price £500

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