Can I put in a DDR 2 400 Mhz into a motherboard that has a DDR 2 800 Mhz memory card installed?

[lostinisaan]

Dear experts and expats,

I just bought a second hand PC, I'd like to upgrade for my son. It's odd that the motherboard's connected to a notebook hard drive and all the ordinary cable connectors are out. ( The ones that usually connect the hard drive and DVD drive)

I do not know if the modification was made, because the motherboard doesn't work anymore, but I'm trying to use my almost brand new hard drives of my older PC.

There are four slots for memory cards with two different colors and my question is if I can put in a DDR 2 400 Mhc card in? In one of them is a 2GB DDR 2- 800 Mhz card. Could I upgrade it with my DDR 2 - 400 Mgz, or would that cause any problems?

I'd deeply appreciate an answer when I looked it up, it's quite a confusing story, regarding the speed of the memory cards.

Thanks a lot in advance for any useful tips. Khop Khun La Lai.

[kkerry]

The easiest way for you to find out would by googling the model number of whatever working motherboard you intend to use, and then going to the manufacturer's website to see what RAM they have listed for the board to use. If both are listed then it should work, but only at the slower of the two speeds.

[lostinisaan]

The easiest way for you to find out would by googling the model number of whatever working motherboard you intend to use, and then going to the manufacturer's website to see what RAM they have listed for the board to use. If both are listed then it should work, but only at the slower of the two speeds.

It became a very exciting day. My son and i tried almost all last night until 1 am, or so. No way to get this thing running which we bought second hand at the Tannon Kundhaee in Sisaket. ( The sunday market)

An almost brand new Lenovo monitor ( okay, no digital input) the PC which had a notebook hard drive attached to the motherboard, via a a red cable, running freaking XP.

But the XP is/was on a notebook hard drive, which I'm now using as storage. Please feel free and read....

I'm busy doing tests, so I brought it to an Advice shop in a little town where I'm working and it turned out that I kept a guy busy all day long.

I had two ordinary hard drives- please see attached photo- with me, that ran maybe only twenty hours all together in my old PC.

It took the "technician" half a day to find out that both hard drives didn't work, but they did before? On one was W 7 installed, but with a different, a 32 bit version.

But if the motherboard doesn't support the ordinary wiring, you could try thousands of new hard drives an none would work<?>

The motherboard is lovely, I can connect four hard drives via a red cable, but it seems that the ordinary big connectors weren't supported.

( Please see image)

i had a graphic card with me that din't work as well, then got a tip where to buy one second hand, but finally ended up driving three times to the shop and none was working.

Then i wanted my money back, took my old graphic card to a TV repair shop and it took only a few minutes and some heat and the graphic card

( please see image) all in a sudden started t work again. Back to life !!!!

But:

There's no way to make a set up, because the motherboard din't support the ordinary connectors and it must be one setting only that we weren't successful? Which setting could it be that the SATA connector wok well, but the ordinary ones don't? Makes sense that only one type is being suported, but please try to explain that to a Thai computer technician........

After two more hours trying the same old shit, I told the guy if he wouldn't have an at least 500 GB hard drive with this different connection. ( SATA, lease see image, the red wire)

1,940 baht for the hard drive, 80 baht for the cable and 300 baht for a Windows 7 ( my own installation DVD, not the ordinary crap) and the whole day passed by. I could see that the guy wouldn't deal with it anymore and wanted to send me home.

Neither was my notebook hard drive formatted, to keep it as a storage disc, nor was my DVD drive connected.

I kept cool, told him that I needed my DVD drive, but he looked so stupid that i almost felt sorry for him.

So I came up with the suggestion to maybe connect it via SATA cable and try if the ordinary motherboard cables that didn't support the hard drives, would do the trick.

The guy had already spent eight hours on my new machine and i had to be careful not to start laughing about him. It was obvious that he didn't have a plan. But I had one and that was to leave the shop with all stuff functioning.

Two more hours and i had to carry my heavy ( it's an older Lemel with 4 DDR 2 800 Mhz slots and four SATA connectors, a wonderful machine...

I do have a Lemel PC at home and really love them a lot.

I finally bought 15 meters of LAN cable to connect my son's PC, paid 2,400 baht and went back to school, where i finished the set up. Got all sorts of programs on it, only 2 GB DDR 2 800 Mhz memory, but I think that the graphic card, I think it's a 1 GB one, helps a lot.

The machine with a 64 but system is as fast as a race horse and I couldn't upgrade it to four GB, because they told me that they'd need to order one.No problem, I can get one in Sisaket for sure. Advice Sisaket seem to have almost all what computer freaks like and what they hate....

The machine is faster than my already fast PC with a 32 but system and 4 GB of RAM. I'm really surprised and guess that the 1 GB graphic card's doing the trick,

If anybody took the time and read this post, I'd like to know where I could get a 2, or maybe 3 a' 500 MB RAM cards, because I still have three empty slots.

My question, if the 400 and 88 DDR 2 would fit is answered. They don't. The connectors are a little but different, so that an idiot like me can't put it in.

I'll pit two more programs on the machine tomorrow, back all my software and teaching stuff up, then check if it's still so fast.

I do have about 15 DDR 2 memory cards, but none of them fits into the slots. Slut !!!

Should a TVF member have DDR 2 800 MHz cards, I'd love to buy them second hand. If somebody's looking for DDR 2 400 Mhz cards, I do have some of them, also one GB of DDR 3.

Sorry for the long post, I got lost in Isaan, as usual.

Edited October 6, 2015 by lostinisaan

[kkerry]

Old DDR2 RAM is fairly cheap in Bangkok used computer shops at places like Zeer Rangsit but no idea for your part of Thailand.

Your post would be a little clearer if you mentioned the type of motherboard you are using. Open up the case and look for a brand name and the exact model number. Hopefully Lemel use brand name boards.