f*****p
发帖数: 235 | 1 【 以下文字转载自 shopping 讨论区 】
发信人: firstep (第一步), 信区: shopping
标 题: RAM疑难杂症请教高手
发信站: BBS 未名空间站 (Wed Dec 28 20:25:06 2005), 站内
发信人: firstep (第一步), 信区: Hardware
标 题: RAM疑难杂症请教高手
发信站: BBS 未名空间站 (Wed Dec 28 20:24:19 2005), 转信
共四条 1g Corsair DDR400 内存。
两条从zipzoofly买的，工作正常。
两条从Fry's昨天买的。刚刚装上，开机后BIOS自荐只显示3538944K.
去掉其中任意一条，BIOS显示3145728K. 这里1G相当于1048576K
作了一下简单计算，发现 3538944 - 3145728 = 3/8 * 1048576. 也就是说，
四个内存共用时，BIOS只识别出来 3.375G,而不是4G.
主板是ECS nForce4-A939. 说明书上说支持up to 4G的。给tech support发信，要
到节日后才能回复。
有人 |
|
c*****u
发帖数: 69 | 2 俺现在用的是vista,每次电脑用一阵RAM的指标就变成90%多
就需要重新启动,否则就打不开窗口，做不了事情了，
能有什么办法能够不重新启动还能让RAM变小
继续操作？ |
|
g*****n
发帖数: 23 | 3 开发一个基于32位Freescale iMX27 的微处理器单元，扩展RAM 到128MB， Flash到
64MB
如果使用16bit RAM和Flash芯片，是否各需要两片才能完成和32位的微处理器协同工作？
谢谢回复！ |
|
I***a
发帖数: 704 | 4 Vertex 5 的block RAM有谁用过吗？
如何在VHDL文件里 instantiate 一个block RAM？ 需要libary/use一个特定Library/
Package吗？ Thanks. |
|
I***a
发帖数: 704 | 5 Thanks.
还有个问题就是使用Block RAM和使用Slice里面的Register有什么区别？
使用Block RAM省面积, 但是最大时钟频率会变慢？ |
|
I***a
发帖数: 704 | 6 书上说的Cache读写时间小于RAM的读写时间。
但是对 5-stage MIPS pipeline 来说,
时钟频率是由最慢的stage决定的，这样的话即使有时可以使用cache，也不能提高时钟
频率，因为某些情况下还是需要读写RAM.
有谁知道使用cache为什么可以提高时钟频率吗？
还是因为使用Cache的时候, pipeline不只 5-stage ?
Thanks. |
|
I***a
发帖数: 704 | 7 5-stage MIPS pipeline takes 1 clock cycle to read/write RAM.
If there is cache, it will also take 1 clock cycle to read/write cache.
Then there will not be any benefit to use cache.
My question is for MIPS with cache, it should have more pipeline stages than
5? Then it will take several clock cycles to read/write RAM and 1 clock
cycle to read/write cache. |
|
a*****u
发帖数: 157 | 8 CACHE比本身就是SRAM做的，不过加了TAG，FSM等控制逻辑。说CACHE比RAM快这个不准
确。
在CACHE命中的情况下，是可以在一个CYCLE里面返回数据的，所以P&H那本书上的5级流
水线是可以用的。只不过要把里面那个简单的RAM换成一个比较复杂些的CACHE。
在CACHE不命中的情况下，简单的流水线就需要停止，CACHE BLOCK从下一级存储及中获
得数据。多线程处理器会在这时候暂停当前线程，切换到另一个准备执行的线程上，然
后FLUSH 流水线寄存器。这里FLUSH PIPELINE REG所造成的CYCLE损失就是这种BLOCK
MULTITHREADING的缺点。
和CACHE对应的概念叫做SCRATCH PAD MEMORY。书上简单的SRAM可以看成是SPM。CACHE
于下一级存储器的交互是由硬件管理的，而SPM和下一级存储器的交互是有软件显式操
作的。 |
|
C******g
发帖数: 2930 | 9 It's rare for a console to get a spec upgrade in the middle of its life.
However, Sony has stealthily upgraded the PS3 over the past few months to
unlock additional usable RAM for developers. Much like the PSP received a
boost in clock speed, the latest firmware updates provide developers an
additional 70MB of RAM to work with. The change was initially discovered by
PlayStation University, noting the reduction in the system OS's memory
footprint, from 120MB to 50MB. As the OS continues to slim d |
|
w******t
发帖数: 441 | 10 我的车dealer一天没修完，我就继续开dealer提供的rental - Dodge RAM...
本truck全新，从rental拿到的时候上面只有28miles…Engine 5.7L HEMI V8, 345hp.
乘舱两排座。Cargo大小感觉还可以，应该能放下一张king bed没问题。车很高，感觉
和Ford F250差不多，视线平放差不多是X5车顶的位置。别的小车简直可以无视…
本wsn从来只开过sedan, 所以这个RAM的感觉还很不一样，因为大，又高，开起来就像
飞…高速上很稳，不会有太晃的感觉，但是遇到比较大的坑还是很颠…345hp的V8还算
比较猛，这么大的车加速一点不肉。但是转弯的时候还是不敢太快，下意识的怕翻…昨
天要送LD回另外一个city,所以来回开了300miles…用了17gal的油，油耗17mpg多一点。
开这个车自己不自觉的就野蛮起来了…而且别人都离你远远的…无论高速还是local换
lane绝对不会有人和你抢…mirror有中等盘子那么大，还是曲面的，小车即使贴的很近
也能看的到。如果在后面跟得紧的话就全被后面的斗儿挡住看不见了。
趴车是个大问 |
|
p**s
发帖数: 408 | 11 很不错 ， 不过我如果再上RAM 肯定就是3500 级别的了。 不知道现在有没有LIFETIME
POWERTRAIN WARRANTY。 很喜欢RAM 和 DODGE 的车款， 顶一下，座椅是真TMD 的舒
服，很怀念 ， 有时候真想把ＦＪ的座椅拆了， 太硬。 对腰部的支撑也不够。
valve
fuel |
|
b******7
发帖数: 8200 | 12 主要开过RAM的大叔说HEMI很sporty。 让俺很心动。 开着RAM也能奔向爱情吧。。。 |
|
w*******y
发帖数: 60932 | 13 MicroCenter Stores and Online:
http://www.microcenter.com/single_product_results.phtml?product_id=0339400
hav ethe Gateway DX4320-19 Desktop Computer on Sale.
Lowest i could find is $849 elsewhere
This is a pretty decent system with plenty of ram a big 1TB Hard Drive and a
Radeon 5750 Videocard which allows you to play up to date games on a 22" -
24" Monitor. You can compare this with a Dell XPS 7100 but you won't find
anything at dell in that price range with 8gb Ram, 1TB, 5750. So i figured ... 阅读全帖 |
|
|
w*******y
发帖数: 60932 | 15 HP Laptop; G62-340US; AMD Athlon II Dual-Core P340. 2.2GHz, 3GB RAM, 320GB,
15.6" LED, Webcam/Mic $246.78 AR if you have HP Recyle Credit B&M only
Product Highlights
- 2.2GHz AMD Athlon II Dual-Core P340
- 3GB (1x2GB, 1x1GB) RAM
- 320GB 5400rpm Hard Drive
- SuperMulti DVD Burner with LightScribe
- ATI Mobility Radeon HD 4250 Graphics
- 15.6" LED Backlit Widescreen Display
- Integrated Webcam and Microphone
- 802.11b/g/n Wi-Fi
- Windows 7 Home Premium (64-bit)
- 5.5 lb
Price:
On the Staples websi... 阅读全帖 |
|
w*******y
发帖数: 60932 | 16 I know most of you got this in an email but I thought this was a spectacular
deal for ram that I bought for $110 a couple months ago.
Newegg's after Christmas sale has G.SKILL 6GB (3 x 2GB) DDR3 RAM for $65.
Code is EMCZNNT43.
Link:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231225
|
|
w*******y
发帖数: 60932 | 17 $855 Lenovo IdeaPad Y560 - 06465CU, IntelCore i7-740QM Processor (1.73GHz)
, 15.6" HD Wide LED, 8GB RAM, 500GB 7200, DVD Recordable (Dual Layer), ATI
Mobility Radeon HD 5730 1GB, 802.11 b/g/n, Bluetooth, 1.3MP webcam, Dolby
Home Theater audio and a subwoofer, 6-in-1 card reader, Multitouch pad,
VeriFace face-recognition software, Windows 7 Home Premium 64-bit, 6 Cell
Battery, 1yr Warranty - Black
Go to lenovo and select the Y560 series:
http://shop.lenovo.com/us/products/lifestyle/ideapad/y-seri... 阅读全帖 |
|
w*******y
发帖数: 60932 | 18 SonyStyle.com Sony Vaio VPCEB35FX/WI Series Intel Core i3-370M 2.40GHz, 4GB
RAM, 500GB, 15.5-in Laptop, Bly-ray,WiDi, HDMI for $599.99 + tax B&M
Intel Core i3-370M (2.40GHz) /Genuine Windows 7 Home Premium 64-bit /15.5"
LED backlit display / 4GB RAM /500GB HDD (5400rpm), Blu-ray Disc player,
WiDi
Click Here:
http://www.frys.com/product/6494992
[Click Here:
http://www.frys.com/product/6494992
] and add to cart for $599.99 - Free Ship to store.
Same model with same configuration in BLACK COLOR i... 阅读全帖 |
|
|
|
w*******y
发帖数: 60932 | 21 17" MacBook Pro quad-core Intel Core i7 2.2GHz, 4GB DDR3, 750GB HD, Intel HD
Graphics 3000 & AMD Radeon HD 6750M, SuperDrive, Thunderbolt port, Gigabit
Ethernet, FaceTime HD camera, Aluminum unibody
Linky:
http://cgi.ebay.com/Apple-17in-MacBook-Pro-Core-i7-2.2GHz-MC725
#ht_1440wt_1139" rel="nofollow" target="_blank" onclick="_gaq.push(['_
trackEvent', 'thread', 'click', '2855165 - ebay-daily-deal-apple-17-macbook-
pro-quadcore-intel-core-i7-2.2ghz-4gb-ram-750gb-hard-drive-intel-hd-graphics
-3000... 阅读全帖 |
|
|
|
|
|
w*******y
发帖数: 60932 | 26 Search and dint find anythyng...sorry if repost
l
The Barnes & Noble Lenovo site has a 30% off coupon for
the configuration with the i7 processor,
l
Coupon Code: DOORBUSTER0516
lSomeone please add link to Lenovo B&N site, couldnt do it from my cell.
thanks.
Go to s B&N Lenovo site
Click on Special offers
Click on the 30% off thinkpad deal
Click on customize on X220 (30% off)
Customize (see config below)
Add to cart
Apply coupon
l
Price after coupon $799.68 + tax
l
I7 2620m 2.7ghz w/ USB 3.0
12.5... 阅读全帖 |
|
w*******y
发帖数: 60932 | 27 I'm sorry if I'm duplicating but this is the cheapest I've seen 8GB of ram
of this quality, w/o any rebates. Free shipping too!
Link:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231416
G.Skill Sniper RAM
DDR 1600
(2x4gb)
9-9-9-24
1.5 volts
$60 - Use EMCKCKJ29 for $15 off $75! ENDS TODAY
|
|
|
|
w*******y
发帖数: 60932 | 30 来自主题: _DealGroup版 - 【$】7" Android Tablet, Capacitive, Multi-touch, Dual-Core A9 CPU, HDMI, 512MB RAM, 4GB Nand, WiFi, Bluetooth, Free 5 Day DHL Int'l Screen Protector, $169.99 So, we have: 7" Multi-touch Capacitive touchscreen, Dual-Core A9 CPU,
Samsung GPU, 512MB RAM, 4GB Internal NAND Flash Memory, HDMI connection,
Built-in Bluetooth (not external), WiFi, 2MP Camera, and the REAL Google
Android Market....Plus a free screen protector and free Expedited 5 Day Int'
l DHL Shipping.....for $169.99 total - CLICK THIS LINK.:
http://www.McBub.com/tp/14?item137429ql=57fb5e98c6f0e5416516abf
From the deal page(s):
This highly portable Dual-Core 7 Capacitive Multi-touch screen ... 阅读全帖 |
|
|
w*******y
发帖数: 60932 | 32 Thinkpad X60 with Docking Station - 12.1" Core Duo 1.8/1GB Ram/60gb HDD -- $
159 FS (Refurb & Linux):
http://www.recoupit.com/Laptops/IBM/IBM-Thinkpad-X60-Laptop-p97
$159 w/ FS
30-Day Warranty
Deal was posted last month @ $199 -- this is a good bit gooder. Searched
high and low for coupon codes...if anyone has any this could be quite hot.
Good bit faster than a single core netbook, and yet still ultraportable.
RAM is upgradable to 2GB but I cannot say whether or not this has a single
1024mb st... 阅读全帖 |
|
|
w*******y
发帖数: 60932 | 34 Been looking for this ultrabook laptop to go on sale for Black Friday but
didn't see it go on sale anywhere until I checked Bestbuy.com today...
UX31-RSL8 13.3" Core i5 4GB RAM 128GB SSD:
http://www.bestbuy.com/site/Asus - Zenbook Ultrabook Laptop / Intel® Core™ i5 Processor / 13.3" Display / 4GB Memory / 128GB Solid State Drive - Radiant Silver/3757001.p?id=1218429942878&skuId=3757001&st=zenbook&cp=1&lp=1
is $999 (normally $1099)
UX31-DH53 13.3" Core i5 4GB RAM 256GB SSD:
http://www... 阅读全帖 |
|
|
w*******y
发帖数: 60932 | 36 Dell Small & Medium Business has the Dell Vostro 3750 Core i5-2430M(2.40GHz)
Laptop with 6GB RAM, 17.3-in, 500GB HDD for $629.99 + free shipping
(make sure to select the free upgrade to 6 GB RAM)
Linky:
http://configure.us.dell.com/dellstore/config.aspx?oc=bqct72a&f
Vostro 3750 Laptop 2nd generation IntelCore(TM) i5-2430M 2.40 GHz Turbo
Boost 2.0 up to 3.00
17.3 inch High Definition LED Display (1600 X 900) with anti-glare
6-cell Lithium Ion Primary Battery
Intel WiFi 1030 802.11 ... 阅读全帖 |
|
w*******y
发帖数: 60932 | 37 7" Ainol Novo 7 Elf ICS 4.0 Tablet PC HD Screen 8GB 1GB RAM Camera HDMI
CPU: All Winner A10, 1.2GHz; GPU: Mali 400
OS: Android 4.0
RAM: 1GB, DDR3
Nand Flash: 8GB
Screen: 7 inch, Capacitive Screen, 1024 x 600
Camera: Yes, front 2.0 megapixels
Gravity Sensor: Yes
Multi-Touch: Yes, 5 points touch
Flash: Yes, support Flash 11.1
Android Market: Yes
Extend Port:
1 x TF card port
1 x MINI USB port; 1 x MINI HDMI port
1 x 3.5mm earphone port
Price: $147.99+ Free Shipping
Linky:
http://www.pandawill.com/... 阅读全帖 |
|
w*******y
发帖数: 60932 | 38 This seems like an awesome and affordable way to upgrade your RAM in your
desktop!
Great reviews and pretty cool looking to boot.
Shows up at $59.99 but then apply coupon: EMCNHHB23 and total goes to $49.99.
Link: Link:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231460
Additional specs:
CL: 9
Voltage: 1.5V
Timing: 9-10-9-28
ECC: No
Reviews say that a quick bios update/change can enable the use of this fast
RAM, but don't ask me how to do it!
|
|
|
|
G*******s
发帖数: 10605 | 41 【 以下文字转载自 SmartShopper 俱乐部 】
发信人: GoRockets (火箭加油), 信区: SmartShopper
标 题: 11.6" MacBook Air i5 1.6GHz, 2GB RAM $769 and more
发信站: BBS 未名空间站 (Tue Aug 28 22:05:17 2012, 美东)
MacMall.com has 72 Hour Sale on Selected MacBooks and iPads. Like the first
one Apple 11.6" MacBook Air dual-core Intel Core i5 1.6GHz, 2GB RAM, 64GB
Flash Storage, Intel HD Graphics 3000, Mac OS X Lion (MC968LL/A) is On Sale
for $769 with Free Shipping. You can customize most of the them.
http://userquote.com/forum/index.php?... 阅读全帖 |
|
w*******s
发帖数: 3417 | 42 【 以下文字转载自 Military2 讨论区 】
发信人: wamgjames (天天谈首席侦探真三木唯一指定正牌马甲), 信区: Military2
标 题: 外形奇特！越猴精锐的Ram-2000轮式装甲车
发信站: BBS 未名空间站 (Tue Jun 14 16:51:14 2011, 美东)
外形奇特， 说实话， 看起来挺威武的，
配备两挺机枪， 活力强大 |
|
T**********e
发帖数: 29576 | 43 Dieter Rams，德国家电公司Braun的总设计师，设计信条：Less but better。 |
|
q****g
发帖数: 129 | 44 我特别讨厌头脑僵化的老人，电脑就算硬盘再大，RAM小就一点不好玩。老人就算积累
了再多经验，如果不能快速灵活地处理现实问题，就像个废物，好在川普这老人头脑还
算灵活。 |
|
t****n
发帖数: 10724 | 45 现在每台电脑，手机上有好几条RAM和储存片，好几个摄像头。
没有这些两样东西， 中国造不出手机 |
|
发帖数: 1 | 46 储存体摄像头都是芯片好吧
：现在每台电脑，手机上有好几条RAM和储存片，好几个摄像头。
： |
|
发帖数: 1 | 47 Ram是没有结扎的公羊，male goat...
我终于能分辨goat from sheep... |
|
