http___xsreviews.co.uk_ga_reviews_other-products_silverstone-sd01-stackable-hard-drive-pad_3__1.xml
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Thortech PSU Roundup 800-1200w Testing Test Rig Big thank you to CryoPC for providing the following test rig: CPU: Core i5 750 @ 4GHZ Motherboard: Asus P7P55D-E GPU: Sapphire 5850 1GB RAM: Corsair Dominator 4GB PC3-12800 DDR3 Storage: Samsung F3 500GB 16MB CASE: NZXT Hades Methodology Here at XSReviews, we don’t have the money for a full test bench when it comes to PSUs. Load testers cost thousands of pounds which unfortunately we just don’t have. Because of this, we don’t pretend to test the rail stability or efficiency of a PSU, as we simply can’t do it effectively. However, what we can do is test the Ripple/Noise quality of each rail using an oscilloscope. The one used was USB Instruments Stingray DS1M12 using HP 3060 probes and also in line with ATX specifications, I used 10uF and 0.1uF capacitors to simulate added load. Noise and Ripple The last PSU review I did included a pretty good explanation of Noise/Ripple, so if you don’t mind I’ll just reproduce that here instead of rewriting it: “So what is noise and ripple? This is the description of minute voltage fluctuations on each of the main rails in any PSU. In a nutshell, the good power supplies have very little, the awful ones fluctuate a lot. According to ATX Specifications, there shouldn’t be more than 120mv in peak to peak voltage fluctuation on the 12v rails, and no more than 50mv on the 5v and 3.3v rails. These are the theoretical maximums, with good PSUs hitting somewhere under half, so 60mv and 25mv respectively. If noise and ripple are present in abundance, you’re most likely going to find it at full load. Not posessing a load tester, the best I was able to do was to load up Furmark and S&M CPU stress and max out the test rig. This ended up drawing 375w from the mains. This will likely equate to nearly 10% less used by the PSU because no power supply is 100% efficient. All we have to go on here is the 80 PLUS gold rating of the PSU, which under 50% load conditions should be around 92%. All images are of the average fluctuations. Not posessing a hot box to ensure that the unit is tested under stressfully heated conditions, air intakes and exhausts were partially covered. The internal temperature of the PSU was then measured using a probe, with results taken when it reached 40 degrees centigrade.” Since I used the .01v scale, each line on the graph represents 0.01v, or 10mv. Numbers on the right of each image to take note of are either the middle or top (they are identical) peak to peak frequency. 3.3V rail 5v rail 12v rail While the 3.3v and 5v rails on the 800w unit were absolutely fine, well below half the maximum fluctuation, the 12v rail wasn’t as strong. Sure it was still well within maximum specifications, but it wasn’t as stable as it could have been. With this PSU the 3.3v and 5v rails were not quite as stable as those of the 800w, though the 12v was much better. Conclusion As usual, this review makes no claims on the efficiency of the units tested as it’s simply something we can’t track without a load tester. However, as for Noise/Ripple tests, I’m happy to say that both the units passed admirably. The 800w is perhaps more stable than that of its larger brother, but in either case these are safe units to use. The only real downside I can comment on is the price. I couldn’t find these anywhere for sale in the UK apart from one site that had both the 800w and 1000w creeping up on the £200 mark which puts these in the most expensive category of units. Pros Noise/Ripple on all rails was well within specifications on all rails under mid-level load High quality packaging and product Good bundle Cons Very pricey
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Silverstone SD01 Pad Drive Stackable crua Tástáil Rig Tástáil LAP: Core I5 750 @ 4GHZ Motherboard: Asus P7P55D-E GPU: Sapphire 5850 1GB RAM: Corsair Dominator 4GB PC3-12800 DDR3 Stóráil: Samsung F3 16MB 500GB CÁS: Hades NZXT Cárta fuaime: Auzentech Réamhimeachtaí 7.1 Bhí an feachtas crua a úsáidtear le haghaidh tástála an SD01 a Barracuda Seagate 7,200.12 500GB. Modheolaíocht A thástáil an píosa de threalamh, hooked mé suas go dtí an rig tástála leis an eSATA áireamh le cábla SATA agus le ceangal díreach SATA chun an feachtas crua a fheiceáil má tá bandaleithead tionchar ag baint úsáide as an SD01. Chun tástáil a dhéanamh ar an difríocht idir an dá timpeallachtaí úsáid mé an leagan is déanaí den Sisoft Sandra Lite. Torthaí Suiteáil Rith mé isteach i fhadhb láithreach leis an SD01 linn suiteáil: conas a bhaint as an stopallán ar ais go seilbh an HDD in áit - mar ní níl an seomra go leor chun an breiseán amháin i gan sin a dhéanamh. Luann an lámhleabhar teagasc rud é - a bhí mé a bheith mar cheannasaí ar an Ceisteanna Coitianta oifigiúil ar an suíomh Silverstone chun an figiúr sé amach. An freagra gairid, tá tú díreach tar éis é yank. Mar sin féin, is é seo an rud deireanach mian leat a dhéanamh nuair atá tú a cheannaigh ach rud éigin mar a mhothaíonn sé mar tá sé ag dul a bhriseadh. Fós tá go leor i bhfad cad a dhéanann tú, b'fhéidir Fáscadh an taobh beag má bhraitheann tú go maith liom é. Nuair atá píosa ar ais go amach cé go bhfuil sé éasca go leor chun a chur le chéile. Is maith liom go bileoga, an cábla cumhachta ach díreach suas go dtí ceithre Molex bioráin mar ní gá duit eile asraon príomhlíonra. Sisoft Sandra Ar an drochuair, dealraíonn sé soiléir ó na torthaí anseo go bhfuil an SD01 titeann feidhmíochta go leor le smután i gcásanna áirithe. Ar ndóigh, nach bhfuil sé uafásach, ach leis an comhad 256kb níl níos mó ná dúbailt i bhfeidhmíocht ag dul SATA díreach seachas úsáid a bhaint as an ceap. Leis na comhaid eile nach bhfuil sé chomh dona, ach is é seo titim i leith ráta sonraí beag buartha.