Can I swap LGA775 for mobo testing

October 6, 2010 at 15:20:32
Specs: Windows XP, 1.8Ghz / 2 Gmb
Got a "dead" HP pavillion a6403w (Pentium E2160 1.8ghz)
Fans boot up but no bios - Gives one long steady beep -
Tried memory stick in other cpu = ok
New PSU got same beep
Hard drive does not boot in other cpu
New bootable HD gives same beep
Am going for a new mobo but want to confirm the processor is good
So I also have an older HP (a814n) with a LGA775 so was asking if it would hurt to swap them for testing purposes?
Thanks for any advice

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#1
October 6, 2010 at 16:17:12
One long steady beep = bad RAM. All the others things you've done were a complete waste of time.

http://www.bioscentral.com/beepcode...

Just so you know, Compaq & HP are the same company. Also, your CPU is a "Pentium E2160 1.8ghz"...I don't know how you can connect a HDD to it?


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#2
October 6, 2010 at 18:36:52
I took the 2 one gig ram sticks to a friends desktop and his computer booted OK.
Also installed another hard disk that is bootable on one of my junker computers and still got the long beep which stops for a few seconds then starts the long beep again.

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#3
October 6, 2010 at 19:09:10
have you tried each ram stick, by itself in each slot, in the computer in question?

larry


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Related Solutions

#4
October 6, 2010 at 19:11:52
1st of all, most of the helpers in this forum, myself included, HATE it when someone refers to their computer as a CPU. Your CPU is a Pentium E2160. You can NOT connect RAM or a hard drive to a CPU...the RAM & hard drive connect to the motherboard.

2nd, you do NOT need a hard drive to boot a system & get a display. Your hard drive is NOT the problem. And the fact that you're getting beeps means that the motherboard & CPU are most likely good. As the beep code link states, the problem is the RAM.

Here are your system specs:

http://h10025.www1.hp.com/ewfrf/wc/...

Being that your CPU is a Pentium E2160 which runs at 800MHz FSB, you *should* be using DDR2-800 RAM. You can use others (DDR2-533, DDR2-667) but performance will suffer slightly. However, whichever RAM you use MUST be spec'd out to run at 1.8v. If you have "performance RAM" or "gaming RAM" that's spec'd for 2.0v or higher, you shouldn't expect it to work in your OEM system.

Strip your system down to the bare minimum needed to boot & access the BIOS. That means: disconnect all drives (floppy, CD & HDD...both the power & data cables), unplug all external devices except the monitor & keyboard. If you have a video card, remove it & connect the monitor to the onboard video. If you have any additional cards (sound, LAN, USB, etc), remove them. And install just ONE stick of RAM making 100% sure it's fully seated in it's slot & securely locked in place. Before attempting to fire up the system, reset the BIOS using the clear CMOS jumper (make sure the power cord is unplugged before doing so). Now try to boot up...still getting a beep code?


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#5
October 6, 2010 at 19:50:20
Thank you Jam, but still get 17 secs of beeeep with 10 secs of no beeeeep in between. Tried one stick at a time at both slots , clearing cmos between tests.
FTW the ram came factory installed.

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#6
October 6, 2010 at 20:19:09
So since the ram worked in another computer I'm leaning towards getting another mobo from Newegg or ???
I guess I cannot put the LGA775 processor from this newer HP into an older HP even though it takes the same "size" LGA775 processor. Am I right? Just wanted to see if the beeeep follows the processor.
Also wondering if it's worth spending the $80 for a new mobo or should I spend it towards something newer? Thanks

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#7
October 6, 2010 at 23:52:57
You can not swap CPU's because it is LGA775 Socket, the Motherboard must support the CPU, you need to find the details of the Motherboard and the CPU's it supports, sometimes an update to the BIOS is needed.

Regards HP/Compaq they use OEM Motherboards and are not the same as reatil motherboards, thoug they are often made by Asus.

Just to let you know this is a CPU = http://en.wikipedia.org/wiki/Centra...

Last but not least why not run Memtest86+ to test memory ?

http://www.memtest.org/


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#8
October 7, 2010 at 08:12:21
Cannot run memtest without a display.
I took this dead machine because it was faster than any of my old beasts and do not want to put alot of $$$ into it.
Thanks for the tip on CPU's at wikipedia. Now I think I'd probably have burnt up this "new" dual core cpu if I put it in my older HP a815n LGA775 mobo.
So I'm still stuck with spending $$$$ on a new mobo and hoping the processor did not get fried,
OR buying a new processor hoping the mobo is still good,
OR replacing both but keeping the case with all the original drives and memory.
P.S. I've looked on line for an HP mobo replacement and they're too much $$$.


OR


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#9
October 7, 2010 at 20:44:35
The E2160 runs very well on this board:
http://www.tigerdirect.com/applicat...
and it overclocks easily. I know, I am typing on it right now and using 4Gb 800mhz DDR2 RAM and Windows 7 64bit. I have not pushed the overclock any where it's limit since this computer is our 'Family' computer, but it is now fast and stable... All I really wanted out of it.
Do not bother looking at the manufacturer's pricing, I recommend Tigerdirect.com AND NewEgg.com as excellent sites with good pricing and excellent customer reviews. I have now built 2 computers, both with Gigabytes boards and I am very happy with them.
Note, if you are doing even mild gaming, or need better than average graphics, add a good video card to this board since you will probably not like it's built in graphics ( I did not until I added a GTS9600 card).

You have to be a little bit crazy to keep you from going insane.
If all else fails, read instructions.


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#10
October 8, 2010 at 16:33:55
Did you disconnect everything like I explained in response #4? Try booting with no RAM...see if the beep code changes. Also, I see where you've tried your RAM in another system, but what about trying someone else's RAM in your system?

I saw at another site that the problem *may* be the keyboard. Try another, preferrably a true PS/2 keyboard, not USB & not USB with PS/2 adapter. Yet another site said one long beeeeeeeeeep indicates a bad power supply. It's possible that one of the 3 rails (+3.3v, +5v, +12v) has failed & you're only getting partial power.

IMO, you're not done troubleshooting yet.


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#11
October 8, 2010 at 17:36:43
Thanks Fingers! I'll only be using the 1.8 Ghz processor that came with this bad mobo. Not sure how to overclock but willing to learn.
Read some reviews about that board on the Newegg site and was wondering about the "heatsink problem" somebody mentioned. Since your OC'ing yours, have you added anything to make it cooler?
Also only have 2 one gig ddr2 800 ram sticks but probably will be adding more.
I want to try a few more tests that JAM has mentioned before I chuck the original mobo. Thanks again for the help.

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#12
October 9, 2010 at 18:36:10
Jam, Yes I've tried it with everything disconnected and with different keyboards and mice.
Also the voltages on my PSU check good.

Only change in the long beeep with no post was when I powered on with no memory sticks installed. Then got one short beep followed by a longer one that sequence kept repeating until power was removed.

Re: getting someone elses ram sticks, I 'm not that sure they would want to take a chance on my messed up system screwing up their good sticks!!

So right now I'm leaning towards a new mobo and more memory for this low budget dual core pentium. Unless anyone else has another suggestion you may see this on Ebay as a "for parts only" deal.


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#13
October 9, 2010 at 20:35:33
That board only has 2 RAM slots so if you plan to use your memory as well as adding more, look at this board (it has 4 slots, as well as some other upgrades):
http://www.newegg.com/Product/Produ...
I am using one of these with an E8200 (no onboard graphics) and a GTS260 on another machine oc'd to 3.2GHz at FSB at 1600.
The E2160 I am running currently at 2.70GHz without any heating problems, though I am using the stock cooling fan from a Core 2 Duo that someone threw in (unused) when I purchased some other hardware. In theory I should have no problem getting 3GHz or more out of this CPU, though I am not in any rush to push it that hard. Currently the core temps are usually between 40c and 45c temp, and I could not get it to go above 54c with multiple app's running, so the temperature is not an issue for me.
Most of what I have learned on overclocking, I have learned from Jam and others here, and by following up on leads they indicated. The E2160 has had many articles and posts written about it and is well known to be very easy to OC, but if you really want to see how far you can push it, you may need an aftermarket cooler, but if you go slowly, and monitor your temps (speedfan works well), you will know long before you cook it.

You have to be a little bit crazy to keep you from going insane.
If all else fails, read instructions.


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#14
October 9, 2010 at 20:58:30
Hi again, I've only home built my systems or tinkered with those that were given to me but am new to swapping out processors and mobos so please bear with me.
I have assumed (I know...) that since this is a dual core processor, I could only use mobos that supported dual cores.
So I've been only looking at P5G41 types as well as the ddr2 restriction.
The system I will be putting together requires a mATX size mobo though I prefer the mid-size case.. i was tihinking of making this into a HTPC?

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#15
October 10, 2010 at 18:06:41
The first board I showed you is a micro-ATX board that has reasonable expansion and reasonable OC capabilities in a stable board. Every manufacturer has a list of compatible processors if you find the ads or boxes descriptions inadequit to tell if your processor will work on a particular board. For the Gigabyte G41 boards, here is a link to that page:
http://www.gigabyte.us/support-down...
As a side note, I have not needed to up the voltages on either of these systems and the E8200 is maxed out for that board due to the locked multiplier and higher natural FSB, while the E2160 with it's lower natural FSB and unlocked multiplier, has more headroom to play with if I decide to. Look at these:
http://www.overclock.net/intel-gene...
http://forums.anandtech.com/showthr...
http://www.overclock.net/intel-cpus...
http://forums.guru3d.com/showthread...
http://forums.overclockers.com.au/s...
.... Just a small collection from my searches.

You have to be a little bit crazy to keep you from going insane.
If all else fails, read instructions.


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#16
October 10, 2010 at 19:07:45
Wow! Thanks for all that research! Looks like I've got some reading to do to get up to speed. I did a little reading on an HTPC link and decided that's not for my liking. I'll stick to gaming for now.
Got to decide which of the other 5 desktops to sell off as my basement is getting too crowded LOL. Thanks again for the good info. Will let you know what i decide to go with.

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#17
November 18, 2010 at 19:20:55
Hi all, Sorry for taking so long to reply, but ended up with the Asus P5G41-M LE/CSM mobo from Newegg, as it has DVI I was looking for and took the DDR2 ram and E2160 processor. (Also able to upgrade the processor to a core 2 quad if needed.)
Searched for a Gigabyte mobo with these features but found it was not in stock.

I know someone will let me know how I messed up as this board does not let you o.c. the processor. Of course it's only a dual core but it's my first new mobo in 5 years and only because I'm not into the newest FPS games anymore.

Let me know where I went wrong (or right?) Thanks for all the advice now I wil try assembling and testing.


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#18
November 18, 2010 at 21:27:29
Your CPU is supported on this board (I checked their CPU support list). In general the reviews look favorable except for an unusual number being sent back (RMA) for defects, but if you have a good one then you should be OK. Only one review I read mentioned OC'ing and he was happy with it. You should be Ok if you try for a mild OC, BUT ONLY after EVERYTHING in running well and stable. Make sure you have a good thermal compound before you begin assembly. IF this board does not post, look to your power supply (even if the voltages are correct without load, they may drop fast when the load is applied if the power supply is going or is insufficient).
At this point, if you have new and/or additional problems, or want advice on overclocking, begin a new post. There appear to be many here who appear to avoid responding to comments added to older posts ('stale' posts?).
By the way, my E2160 is now retired (I might ebay it), I found a good buy on a Core 2 Duo E7500 that I am running stable at 3.52GHz on the same board I recommended to you earlier. This board should max out in theory on this CPU at 3.66GHz due to it's FSB. It might go beyond there with a little more chipset voltage and some other tweaking, but 24/7 usability and stability I think are more important to me for this system right now (and I am still learning).

You have to be a little bit crazy to keep you from going insane.
If all else fails, read instructions.


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#19
November 23, 2010 at 19:04:47
Fingers, thanks for all your advice and support. Installed new Asus mobo with old components and had to re-install the OS. It could not find the orig. Vista O.S. so upgraded to Windows 7.
Just learning that system so I guess everything is stable for now. Thanks again and " good luck " with your new processor. I may do the same in the future.
Later, Tradevman

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