Installing additional RAM into hp s5150t

I have a quad core s5150. I recently tried to add two additional RAM modules. I verified that I had purchased the correct RAM on curcial.com and by speaking with their reps. The computer would not take the RAM in any configuration. We tried seating the new RAM into the old modules one at a time and it still would not work. At last, the crucial rep told me to try and update the BIOS. Hard as I tried, for three hours, I was unable to find the BIOS update on the HP website despite looking where the HP video told me to look. There were lots of update options but no BIOS heading. The auto detect tool could not identify my computer for some reason. The HP Update tool installed with the machine said no updates were available.
I am wondering a few things, 1) Where can I find the BIOS update on the HP site? It is not in the list of updates on this page, where it is supposed to be:
http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?os=4063&lc=en&cc=us&dlc=en&sw_lang=&product=4002...
2. Is it possible there is a problem or conflict beacuse the machine shipped with Windows Vista and I updated it to Windows 7? Looking in the BIOS, the last update was May of 2009, long befoe Windows 7 was updated from the old VISTA files.
3. Any other reason you might know for the modules to not be working? We exchagned them for a fresh set already and still the same problem. They are clicking into place. Not sure what to try.

Thanks for your support, Jaco. I appreciate your input.

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Anyone install additional RAM into your new MacBook?

I slapped a new 1 gig stick into my MacBook and noticed that after removing the bracket in front of the ram slots, adding new ram and putting it back that the bracket wasn't quite flush due to the pads that cover the ram slots, even after screwing the bracket back in. Anyone else experience this? I am just curious as to whether or not it is normal. When I removed the bracket initially to get at the RAM, I don't recall if the bracket was dead flat against the slots.

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If you remove the battery and look at the RAM slots, is the bracket after RAM installation completely flat?

HT1270 does installing aftermarket RAM into new macbook pro non-retina void apple warranty

does installing aftermarket RAM into new macbook pro non-retina void apple warranty

Only for the RAM which should be covered by the manufacturers/vendors warranty. Now if you damage the MBP while installing the RAM then you may find yourself voiding the MBP warranty. But ir does take a lot to do that.
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Installing more RAM into my Macbok Pro

Hey guys,
I'm looking to install more RAM (from 2 Gb to 4 Gb) into my MacBook Pro (15.4" Intel Core 2 Duo 2.2 Ghz) that I bought last September, and I'm strictly a software guy: I know little to nothing about hardware.
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Open your computer's User Guide. There's a whole chapter on upgrading memory in which the specifications are explained. If you don't have the manual you can download a PDF version from http://www.apple.com/support/manuals/.
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Welcome to the Apple discussions.
Our Powerbooks are sensitive souls when it comes to RAM, due to the Apple architecture and how power is throttled on the memory bus. While memory can meet the Apple specs, typically cheaper RAM can fail with the symptoms you're seeing. Recommend using Crucial, Kingston (not their value ram memory, though), or Samsung. Crucial guarantees their memory will work when chosen from the memory selector on their web site.
It is possible you've just got some bad memory and could get a replacement, however, if the brand is unknown, you may want to return it and obtain one of the brands above.

Installing additional ram memory

I am trying to install memory in my Mac Pro, but some of the risers come upon the hardware configuration panel as empty. I have moved around the memory modules and they all work, but just not when they are all installed at once. I have two sets of 2 gb modules and four 1 gb modules. Two of the 2 gig modules are are Centon and two are another brand. All of the 1 gig modules are exactly the same. Currently, I have 4x1GB modules installed and 2x2gb modules installed. My computer is reading the 2 GB modules, but only reading two of the 1GB modules. Here's my Mac configuration:
Model Identifier:    MacPro2,1
Processor Name:    Dual-Core Intel Xeon
Processor Speed:    2.66 GHz
Number Of Processors:    2
Total Number Of Cores:    4
Memory:    6 GB
Bus Speed:    1.33 GHz
When I putt all four of the 2GB modules in the first two slots and the four 1GB modules in the last two, the computer read the 1 GB modules but one of the 2GB modules????? When I removed all of the 1 GB moduels, the computer then read two of the 2GB modules. I am totally confused. I have tested all of the modules and they all work in one configuration or another, and I've checked all of the slots and they work too. Any suggestions on what I should try next?
thanks

Hi, this may or may not resolve the issue:
MacBook Pro: How to remove or install memory:
Additional notes     For best performance, fill both memory slots, installing an equal memory module in each slot.
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Installed Additional RAM - anything else?

I just installed an additional 512mb of RAM on my iBook, bringing the total RAM up to 1GB. The installation was pretty painless, but now I'm wondering: is there anything I should do to double-check the RAM to make sure it is working properly? On the 'About this Mac' page, it does show that my Mac now has 1GB of RAM, which is a good sign - but should I pursue anything else like a Hardware Test or the like just to be sure?

Usually, you'll be alright, but if things start acting odd, like your machine stops booting, etc. that's when you might start thinking there is something wrong with your RAM.
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Installing additional RAM

hi guys, just bought my first mac this week. I know very little about computers, especially mac, but im trying to learn. i intend to use this computer mainly for sibelius and other music software.
anywho, this question has likely been asked already on this forum, but i ordered the MBP with the 1 gig of ram, and i have bought an additional gig. can anyone walk me through actually inserting this thing into my computer?
thanks
dan
MacBook Pro

Um, did you buy it from apple as 1 stick or 2? If
you bought it as two, then you really need to replace
both sticks else the most you can get is 1.5 gigs
(and everyone will tell you its bad to have unmatched
sticks, since it kills dual channel ram).
How much of a performance hit is it really? I heard someone saying that it kills video performance, but I don't know. This months MacAddict ran some RAM tests using Photoshop (via Rosetta) on an intel MacMini. These are the results, from best performance to worst:
2Gig (2x1Gig)
1.5Gig (1x1Gig, 1x512MB)
1.25 (1x1Gig, 1x256)
1Gig (1x1Gig)
1Gig (2x512)
(the above 2 were pretty much dead even)
768 (1x512, 1x256)
512 (2x256)
512 (1x512)
This somewhat unscientific test tells me that with small amounts of ram (512 total) 2 sticks are better than 1. However, with 1Gig, "mismatched" actually performs equally to 2 sticks. Also a single 1Gig is outperformed by 1.256Gig (mismatched).
Basically the performance diff is very slight. I got mine w/ 1x512, and I have no qualms at all in running 1.5Gig mismatched (I just bought a 1Gig stick).
The article even has a little box titled "THE MATCHED-PAIR MYTH" and concludes that mismatching a pair doesn't really matter.
"in our testing, matched-pair RAM didn't provide a quantifiable improvement over mismatched RAM."
Brain21

Kernel panic after installing additional ram

Hi there.
(I think this should go here, not in laptop issues because it seems to be more hardware-related)
I have a laptop Acer Aspire 2920Z with 2x512 Mb stock ram and I recently bought an memory upgrade 2x2gb. Any of them works when inserted separately, but when I install both, I see kernel panic upon starting X on my i686 Arch installation (and /proc/meminfo shows that I have only 3Gb).
The same behaviour occurs when I try to boot from latest Arch install iso or x86_64 archbang livecd.
My BIOS is updated to latest version and it shows that I have 4Gb of RAM installed.
Right now I installed x86_64 linux kernel but I still have kernel_panic on booting my machine.
Is there any chance that I can use 4gb ram on my laptop?
Also, what are the ways to save those error messages that kernel panic provides? (aside from just taking a picture of the screen with my camera)

cra wrote:I installed kernel by changing architecture param in pacman.conf, running pacman -Syy and pacman -S linux, as described in the corresponding page on the wiki, but without reinstalling every single package I have
Do that step.
EDIT:
cra wrote:Any of them works when inserted separately, but when I install both, I see kernel panic upon starting X on my i686 Arch installation (and /proc/meminfo shows that I have only 3Gb).
The same behaviour occurs when I try to boot from latest Arch install iso or x86_64 archbang livecd.
Wait, you mean just booting the livecd gets you a kernel panic? Insert both of them at the same time, and the test them with memtest86+
Chances are your motherboard pins could have a problem. A problem that is noticiable when you insert both sticks.
Test them with memtest86+.
Last edited by chris_l (2012-12-10 16:22:24)

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open the mac back up and make sure both ram modules are seated properly. It takes a little hard push to get them seated and you will hear a click/snap when they are seated. To determine if a ram slot has failed, simply put back in the old ram, and if both slots are recognized, the problem is with the new ram.

Installed additional RAM but computer performance now worse

Can anybody please help? I have a T61 that came with 2Gb RAM (1GB + 1GB) and I recently purchased another 2GB chip. The problem is that after installation I had a total RAM of 3GB (1GB + 2GB), the Windows Experience Index score actually decreased! It went from 3.5 to 3.1!!
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Thanks

Part of the problem is that with two differents sized DIMMs you lose the Dual Channel mode feature of the RAM, so the effective throughput of the RAM would be lowered compared to the two 1GB modules that operated in dual-channel.
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http://en.wikipedia.org/wiki/Dual-channel_architecture
T400 6475-8Q5 | 8GB RAM | WXGA+ | Seagate 500GB 7200 | Win 7 Pro 64-bit............T61 7658-CTR | 8GB RAM | WD Black 320GB

Installing new ram into macbook

Hello, I recently bought 2 pieces(sticks?) of ram with the following specifications: 4GB total (2x2GB) DDR2 PC2-5300 that claims to be compatible with 667, 5333 and 400 MHz. This ram replaced the ram that is currently in my macbook: 2GB total (2x1GB) 667 MHz DDR2 SDRAM. Everything fit just fine and I pressed the ram in and continued adding pressure until I was sure the ram couldn't go in anymore. It all seemed fine until I tried turning on the macbook which lit up the small white light on the side, but the screen remained black. The keyboard and mouse don't seem to do anything, but when I plugged in the power source, the light turned green as if the computer was fine. Did I buy the wrong ram or is there something else going on? After putting the original ram back in, the computer works just fine. If I bought the wrong ram can someone let me know what ram I should buy? I'd like to get more than 2GB in this thing. Really any information will help, thanks! I believe I have a late 2008 (maybe early 2009) white macbook, if that helps.

You've most likely got RAM that was made for PCs. The PC5300 that is for them is usually tested at up to 675mhz so it can be compatable with PC5400 & 5333 machines. MacBooks are really finicky about RAM. They need sticks that are PC5300 667mhz only. (The RAM actually runs at 666mhz but like the 13 floor on a building they were worried about superstition.)
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What do I look for when installing additional RAM?

I have an old Quicksilver G4 that has three slots in it that are all being used, 640 mb of RAM (2-256 mb and 1-128 mb sticks, SDRAM, and speed PC133-333) and a Mirror Door G4 with two open slots, 768 mb of RAM (1-256 mb and 1-512 mb sticks, DDR SDRAM).
I want to add RAM to both of these. Can I add to both of these or swap out for larger mb sticks? Can someone please tell me what my options are?
Thanks in advance.
PowerMac G5 2.3GHz 250 HD 1.5 Gb RAM Mac OS X (10.4.6)

Hi Kately:
Both the QuickSilver and the MDD G4s will take 512MB in each RAM slot. You'll want the best quality RAM you can get (Panther and Tiger have higher specs for RAM than earlier versions of the Mac OS), I'd recommend Kingston or Azen.
The QuickSilver takes PC133 SDRAM, whereas the MDD either takes PC2100 or PC2700 DDR SDRAM. If you mix PC2100 and PC2700, the PC2700 will operate at PC2100, so you'll want to match what's already in your towers. The easiest way is to take one module from each computer with you when you buy your RAM.
Hope this helps,
Andrew Penner

Second internal HD, additional RAM & proper settings for them

Hi guy!
I want to thank you in advance for reading my questions and answering it. It may be long.
Today, I've received my memory upgrade 4GB (2X2) from OWC. And my 2nd hard drive Seagate Baracuda 500GB 7200.
I read all my the instructions and installed all memory and HD myself, all seams to be working, my system shows RAM and HD. However, there are some questions I have unresolved, I called tech support they couldn't tell me more than just "call the HD manufacture and ask them"
1st. After I've installed HD and started the computer, the window came and said that I need to initialize the HD. I clicked "initilialize" it took me to disk ut. I erased HD and gave it a name "Mac HD2" Now, it is showing me that I only have 465.64 GB of space available. It shows that only 108MB is used. Where is the rest? I know that it won't show the whole 500GB, but it ate up 35GB, itsn't that too much? So, my question about this is: Should I be doing something else with this HD? Should I be calling the company that sold HD and have them replce it? Or is it ok to hav such a loss?
2nd. What is the best way to place my folders & files on both HDs. I was thinking to take my Documents/Movies/Music/Pictures folders and just place them on HD2 and keep HD1 for applications only. Is this right?
3rd. My HD1 is 160GB (148.9 as per info.) My Documents/Movies/Music/Pictures folders are about 55Gb my application folder is 8 GB I should have about 86GB left (if we take 148-55-8) I only have 67. What am I missing? The user folder (yuriyork) is 60GB. I'm totally confused with where the space is.
With this said, I'm back to the 2nd question what files/folders I should move to HD2? I just want to do it right to try and up the computer performance.
4th. When I do move files/folders to HD2 should I just open HD1 and HD2 in finder and simply drug and drop folders from one window to another? I think it's not right way of doing it. I think I need to somehow specify to the system that Documents/Movies/Music/Pictures folders are now located on HD2
5th. With increase RAM, should I do any setting on OSX to tell it that there is lots of RAM and that it can use it as much as it wants? Like for example, I know that in Virtual PC I can set up the amount of RAM it uses. So, with that I thought that I may need to specify something like that in some other settings, if so than where?
I hope I didn't confuse you all with some much stuff. To hopefully simplify this, I'm going to put the JPG file on the web for you guy to see what folder are what size and may be give me an idea what is the best way to do it.
Here is the photo:
Again, thank you for taking your time to answer my questions, you guys have always been very helpful.
Thanks to all!!!

#1: The primary reason for the discrepancy is numbering convention. To hard drive manufacturers, a kilobyte is 1,000 bytes, a megabyte is 1,000,000 bytes, and a gigabyte is exactly 1 billion bytes, so 500GB is 500,000,000,000 bytes. Computers, using the binary system, don't use 1,000 to represent a kilobyte; instead they use 1,024.
Therefore, when you divide 500,000,000,000 by 1,024 (KB), again by 1,024 (MB), and again by 1,024 (GB), you'll get 465.66 GB, which is almost exactly what you're seeing.
#2: When I installed a second hard drive in my G5, I moved my Music, Pictures, and Movies folders to this drive. Then, I just had to point iTunes and iPhoto to the new directories. The sidebar links still take me to the original folders on the original drive, but that could likely be fixed if I replace the folders with an alias or symbolic link that pointed to the new location.
#3: Try downloading an app such as Omni DiskSweeper to help locate where all the space has gone to. It'll give you a breakdown by each folder and subfolder on the drive.
#4: As I stated in #2, an alias or symbolic link should work if you want the sidebar links to continue to function after moving the folders. Otherwise, just direct iTunes and iPhoto to the new locations.
#5: OS X manages memory on its own for each application. There's no longer the need to allocate RAM to each app like there was in the pre-OSX days.
When installing additional RAM, it's often recommended to reset the NVRAM to ensure that the computer recognizes all of it properly. To do this, reboot the computer while holding down the Command, Option, O, & F keys. This will boot you into open firmware. At the prompt, type the following (and press return after each one, of course):
reset-nvram
set-defaults
reset-all
The computer should reboot after the final command.

Installing additional RAM into hp s5150t

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