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Feb
17
comment Is it better to have four times 2 GB or two times 4 GB of RAM?
the i7-860 is an LGA1156 system it can only do dual channel. Outside of memory benchmarks that's extremely unlikely to matter. Saturating the dual channel DDR3-1333 controller would require three of the four cores doing nothing but memory IO.
Feb
15
accepted How much longer will the dsub port be supported in new hardware
Feb
15
comment How much longer will the dsub port be supported in new hardware
the price gap between ps2/dsub and usb/dsub switches is negligible at this point; I'm not considering the former at all.
Feb
15
asked How much longer will the dsub port be supported in new hardware
Feb
12
answered Do I need to upgrade DDR2 Ram in pairs?
Feb
12
comment Does a power supply draw only as much power as it needs?
@pipTheGeek the short version is that your power meters know about power factor and factor it into how much you get charged. US residential power meters don't so we don't get penalized for devices with bad power factors. (AFAIK US commercial/industrial meters do adjust for power factor.)
Feb
9
comment Does a power supply draw only as much power as it needs?
@pipTheGeek APFC doesn't have anything to do with efficiency directly but in general for the US market is only implemented on better quality models; so it can be used as a filter when efficiency data isn't published. IIRC due to different regulatory/billing requirements it was common in the EU much sooner than in the US with the result that there are low efficiency APFC PSUs in the EU market.
Feb
9
comment Does a power supply draw only as much power as it needs?
Only the best PSUs on the market are able to approach 90% efficiency. Most good PSUs today do somewhere in the low to mid 80's. Cheaper PSU's tend to be nearer to 70%.
Feb
9
comment Does a power supply draw only as much power as it needs?
While true in a quality PSU the difference between max efficiency and efficiency at very low/peak load is only a few percent. Running at near max load also has the fan spinning faster and louder. IF you want to keep the fan idle you need to be a few hundred watts under max power. This is because the amount of cooling from a fan at an acceptable noise level is fixed, and the rest has to be done with big heatsinks. Corsair publishes efficiency and fan speed curves for it's PSUs. Here's one (charts on resources tab): corsair.com/products/hx650/default.aspx
Feb
9
awarded  Editor
Feb
9
revised How hot is too hot? (Or, how my graphics card burned my fingers)
typo
Feb
1
comment Am I secure from network monitoring software if HTTPS is used?
I don't know how common the practice is, but my employer does do this. AFAIK it's to make sure we're not sending proprietary data out of the network over SSL.
Jan
29
comment Difference between IDE and SATA DVD writers
That chart's slightly dated. Sata6 is out now and has a 600MB/sec bus speed.
Jan
29
comment What happens when a flash drive wears out?
I've read that the USB external drive interface doesn't provide any way to send SMART errors to the OS; so even if a thumb drive implemented SMART the warnings wouldn't be delivered. This is doubly disappointing because flash cells don't suddenly stop working, failure comes after a period of progressively slower write times meaning there always should be plenty of warning to send a SMART error vs mechanical drives often failing without warning.
Jan
27
answered Multi-monitor Setup with Widescreen and Two 19 inch Screens
Jan
25
comment Can I turn a PCI-e x1 slot into an old PCI slot?
For devices that can consume significant amounts of bandwidth PCIe is also better since a 1x slot gives either 125 (1.0) or 250MB/sec (2.0) of dedicated bandwidth in each direction, vs PCIs 133MB that's shared both directions with all other PCI devices. In the next year or so PCIe 3.0 will boost the per lane bandwidth to 500MB/sec allowing SATA6GB and USB3 addon cards to operate at near full speed in a 1x slot.
Jan
25
comment Can I turn a PCI-e x1 slot into an old PCI slot?
Makers of low end expansion cards also like the form factor since it reduces the minimum size of the PCB needed for the card. If you look on sites like newegg you'll see lots of a triangle and L shaped PCI cards that add an ethernet port/usb ports or something else that's trivial and which needed to make the PCB larger to support the connection to the mainboard.
Jan
25
comment Can I turn a PCI-e x1 slot into an old PCI slot?
The reason mobo makers like PCIe 1.x slots is that they're cheaper to implement. They only need 18 pins vs 62 for a 32bit PCI slot. Fewer traces leads to simpler board layout, less EMI, and potentially fewer layers needed in the PCB itself (this is a big cost savings).
Jan
21
asked aero snap on a multi monitor system
Dec
15
answered How hot is too hot? (Or, how my graphics card burned my fingers)